Chronic hypertension causes: Difference between revisions

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{{Template:Hypertension}}
{{Chronic hypertension}}


{{CMG}}; '''Assistant Editor-In-Chief:''' Taylor Palmieri
{{CMG}}; '''Assistant Editor-In-Chief: '''[[User:YazanDaaboul|Yazan Daaboul]], [[User:Sergekorjian|Serge Korjian]]


==Overview==
==Overview==
The most common cause of hypertension in 90% of cases is [[essential hypertension]] where no clear identifying underlying cause can be identified, and the [[Hypertension pathophysiology|pathophysiology]] of which is incompletely understood.  There are many secondary causes of hypertension.
Secondary hypertension is only responsible for 5% of cases of chronic hypertension whereas [[primary hypertension]] (also known as [[essential hypertension]] where no identifiable cause is identified) is responsible for 95% of cases.<ref name="pmid12537168">{{cite journal| author=Onusko E| title=Diagnosing secondary hypertension. | journal=Am Fam Physician | year= 2003 | volume= 67 | issue= 1 | pages= 67-74 | pmid=12537168 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12537168  }} </ref> Common causes of secondary hypertension include [[obstructive sleep apnea]], [[hyperaldosteronism]], [[kidney disease]]s, excess [[catecholamine]]s, [[coarctation]] of the arota, [[cushing syndrome]] among other diseases.


==The Most Common Cause==
The most common cause of hypertension is [[essential hypertension]] which accounts for about 90% of cases of elevated blood pressure.


==Common Causes of Secondary Hypertension<ref>isbn=140510368X Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:85</ref><ref>isbn=1591032016 Sailer, Christian, Wasner, Susanne.  Differential Diagnosis Pocket.  Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:194-195</ref>==
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{{Familytree | | | A01 | | A01= '''[[Chronic hypertension]]'''}}
{{Familytree | |,|-|^|-|.| }}
{{Familytree | B01 | | B02 | B01='''[[Primary hypertension]]''' <br>(also known as [[essential hypertension]]) <br> (95% of the cases)| B02= '''[[Secondary hypertension]]'''<br> <br> (5% of the cases)}}
{{Familytree/end}}


In only a small minority of patients with elevated arterial pressure can a specific cause be identified.  An underlying [[endocrine]] or renal defect is most often identified, that if corrected, may restore the blood pressure back to normal.


==Primary Hypertension==
When a full evaluation yields no clear etiology for the elevated blood pressure, the latter is identified as primary hypertension. Primary or essential hypertension is considered a chronic disease requiring lifelong treatment and follow-up. If an underlying disease is identifiable as the cause, secondary hypertension is diagnosed. Secondary hypertension is a potentially curable condition in most cases.<ref name="pmid17462751">{{cite journal| author=Chiong JR, Aronow WS, Khan IA, Nair CK, Vijayaraghavan K, Dart RA et al.| title=Secondary hypertension: current diagnosis and treatment. | journal=Int J Cardiol | year= 2008 | volume= 124 | issue= 1 | pages= 6-21 | pmid=17462751 | doi=10.1016/j.ijcard.2007.01.119 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17462751  }} </ref>  In comparison, the prevalence of primary hypertension is significantly higher than secondary hypertension, where only 5-10% of patients have a secondary etiology<ref name="pmid12537168">{{cite journal| author=Onusko E| title=Diagnosing secondary hypertension. | journal=Am Fam Physician | year= 2003 | volume= 67 | issue= 1 | pages= 67-74 | pmid=12537168 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12537168  }} </ref>  Classically, the common  age range for the presentation of primary hypertension is 30 to 55 years<ref name="pmid11509166">{{cite journal| author=Dosh SA| title=The diagnosis of essential and secondary hypertension in adults. | journal=J Fam Pract | year= 2001 | volume= 50 | issue= 8 | pages= 707-12 | pmid=11509166 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11509166  }} </ref>, but age alone should never warrant a diagnosis of primary hypertension without a proper work-up.
==Secondary Hypertension==
===When to Suspect Secondary Hypertension===
===When to Suspect Secondary Hypertension===
A secondary cause of hypertension should be suspected if the patient has [[resistant hypertension]]. The AHA Scientific Statement 2008 defines resistant hypertension as a blood pressure which remains above the goal of 140/90 mm Hg despite concurrent use of 3 antihypertensive medications of different classes at optimal doses, including a diuretic.<ref name="pmid18391085">{{cite journal| author=Calhoun DA, Jones D, Textor S, Goff DC, Murphy TP, Toto RD et al.| title=Resistant hypertension: diagnosis, evaluation, and treatment. A scientific statement from the American Heart Association Professional Education Committee of the Council for High Blood Pressure Research. | journal=Hypertension | year= 2008 | volume= 51 | issue= 6 | pages= 1403-19 | pmid=18391085 | doi=10.1161/HYPERTENSIONAHA.108.189141 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18391085 }} </ref>.
It is not cost effective to evaluate all hypertensive patients for secondary hypertension.  <ref name="pmid17462751">{{cite journal| author=Chiong JR, Aronow WS, Khan IA, Nair CK, Vijayaraghavan K, Dart RA et al.| title=Secondary hypertension: current diagnosis and treatment. | journal=Int J Cardiol | year= 2008 | volume= 124 | issue= 1 | pages= 6-21 | pmid=17462751 | doi=10.1016/j.ijcard.2007.01.119 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17462751 }} </ref> There are certain clinical scenarios, though, that should prompt further evaluation.
 
====Early Onset Hypertension Under Age 30====
Primary hypertension generally first occurs between 30 and 55 years. Onset of hypertension before puberty and before age 30 in the absence of risk factors should raise suspicion for secondary hypertension.  
 
====Abrupt Onset of Hypertension in A Normotensive Patient====
 
====Rapidly Progressive Hypertension or a Hypertensive Emergency or Urgency====
 
====Refractory Hypertension====
 
<div class="mw-collapsible mw-collapsed">
 
===Evaluation of Secondary Hypertension===
 
<div class="mw-collapsible-content">
 
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{{Familytree|boxstyle=text-align: center; font-size: 90%; padding: 0px; width: 50%;| | | | | | A01 | | | | | | | | | |A01=<div style="padding: 15px;">'''''Evaluation of secondary hypertension'''''</div>}}
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'''Investigation should be limited for patients with clues suggestive of potentially correctable causes.'''
 
❑ Presence of clues for renovascular hypertension (most common potentially correctable cause)?<ref name="pmid16549646">{{cite journal| author=Hirsch AT, Haskal ZJ, Hertzer NR, Bakal CW, Creager MA, Halperin JL et al.| title=ACC/AHA 2005 Practice Guidelines for the management of patients with peripheral arterial disease (lower extremity, renal, mesenteric, and abdominal aortic): a collaborative report from the American Association for Vascular Surgery/Society for Vascular Surgery, Society for Cardiovascular Angiography and Interventions, Society for Vascular Medicine and Biology, Society of Interventional Radiology, and the ACC/AHA Task Force on Practice Guidelines (Writing Committee to Develop Guidelines for the Management of Patients With Peripheral Arterial Disease): endorsed by the American Association of Cardiovascular and Pulmonary Rehabilitation; National Heart, Lung, and Blood Institute; Society for Vascular Nursing; TransAtlantic Inter-Society Consensus; and Vascular Disease Foundation. | journal=Circulation | year= 2006 | volume= 113 | issue= 11 | pages= e463-654 | pmid=16549646 | doi=10.1161/CIRCULATIONAHA.106.174526 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16549646  }} </ref><ref name="pmid21963765">{{cite journal| author=Rooke TW, Hirsch AT, Misra S, Sidawy AN, Beckman JA, Findeiss LK et al.| title=2011 ACCF/AHA Focused Update of the Guideline for the Management of Patients With Peripheral Artery Disease (updating the 2005 guideline): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. | journal=J Am Coll Cardiol | year= 2011 | volume= 58 | issue= 19 | pages= 2020-45 | pmid=21963765 | doi=10.1016/j.jacc.2011.08.023 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21963765 }} </ref>
 
: ❑ Onset of hypertension before the age of 30 years
: ❑ Onset of severe hypertension (SBP ≥180 mm Hg and/or DBP ≥120 mm Hg) after the age of 55 years
: ❑ New azotemia or worsening renal function after administration of an ACE inhibitor or ARB agent
: ❑ Unexplained atrophic kidney or size discrepancy between kidneys of greater than 1.5 cm
: ❑ Sudden, unexplained pulmonary edema
: ❑ Accelerated hypertension (sudden and persistent worsening of previously controlled hypertension)
: ❑ Resistant hypertension (failure to achieve goal blood pressure in patients who are adhering to full doses of an appropriate 3-drug regimen that includes a diuretic)
: ❑ Malignant hypertension (hypertension with coexistent evidence of acute end-organ damage, i.e., acute renal failure, acutely decompensated congestive heart failure, new visual or neurological disturbance, and/or advanced [grade III to IV] retinopathy)
: ❑ Unexplained renal failure in the absence of proteinuria or an abnormal urine sediment
: ❑ Multivessel coronary artery disease
: ❑ Unexplained congestive heart failure
: ❑ Refractory angina
</div>}}
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{{Familytree|boxstyle=text-align: center; font-size: 90%; padding: 0px;| | A01 | | | | | | A02 |A01=<div style="padding: 10px; font-weight: bold;">YES</div>|A02=<div style="padding: 10px; font-weight: bold;">NO</div>}}
{{Familytree|boxstyle=text-align: left; font-size: 90%; padding: 0px; border-top: 0px; vertical-align: top; width: 25%;| | A01 | | | | | | A02 |A01=<div style="padding: 10px;">
❑ Perform noninvasive diagnostic studies
: ❑ Duplex ultrasonography
: ❑ Gadolinium-enhanced magnetic resonance angiography
: ❑ Computed tomographic angiography (in individuals with normal renal function)
❑ Consider catheter angiography when noninvasive studies are inconclusive</div>
|A02=<div style="padding: 10px; font-size: 85%;">
Look for findings suggestive of other identifiable causes
 
❑ Pheochromocytoma
: ❑ Paroxysmal pounding headache
: ❑ Palpitations
: ❑ Profound perspiration
: ❑ Pallor
: ❑ Hand tremor
 
❑ Hyperaldosteronism
: ❑ Unexplained hypokalemia with urinary potassium wasting
 
❑ Obstructive sleep apnea
: ❑ Daytime somnolence
: ❑ Snoring
: ❑ Obesity
 
❑ Hyperparathyroidism
: ❑ Hypercalcemia


Other features that suggest secondary hypertension include:
❑ Hypothyroidism
*Recent onset of hypertension
: ❑ Elevated TSH
*Unprovoked [[hypokalemia]] or an inappropriately [[low potassium]] (e.g. a "normal K" on an [[ACE inhibitor]] plus a [[K sparing diuretic]])
: ❑ Puffy face
*Presence of [[peripheral arterial disease]]
*Increase in [[creatine]] with [[ACE inhibition]]
*Loss of control of previously controlled hypertension


Before evaluating the patient for secondary hypertension, non-compliance with antihypertensives should be ruled out.  Given its prevalence in the Unites States population, sleep apnea should also be ruled out early in the evaluation.
❑ Aortic coarctation
: ❑ Diminished or delayed femoral pulses and low or unobtainable blood pressures in the legs</div>}}
{{Family tree/end}}
 
</div></div>


===Common Causes of Secondary Hypertension===
===Common Causes of Secondary Hypertension===
Common causes of secondary hypertension include:
Common causes of secondary hypertension are often memorized by the mnemonic ABCDE:


* [[Anxiety]]: Hypertension is often confused with mental tension, stress and [[anxiety]]. While chronic anxiety is associated with poor outcomes in people with hypertension, it alone probably does not cause it.
{| border="1" style="border-collapse:collapse; text-align:left; font-size:130%;" cellpadding="5" align="center" width="600px"
* [[Arteriosclerosis]]
|-
* [[Chronic kidney disease]].  This includes diseases such as [[polycystic kidney disease]] or chronic [[glomerulonephritis]].
|bgcolor="#67e1ff"|'''Letter'''
* [[Congenital adrenal hyperplasia]]
|bgcolor="#67e1ff"|'''Causes of Secondary Hypertension'''
* [[Cushing's syndrome]] due to an excessive secretion of [[glucocorticoids]] which in turn causes the hypertension
|-
* Drugs:
|bgcolor="#f3f3f3"| A
:*[[Nasal decongestants]] with adrenergic effects
|Accuracy, Apnea, Aldosteronism
:*[[NSAIDs]]
|- 
:*[[Oral contraceptives]]
|bgcolor="#f3f3f3"| B
:*[[Steroids]]
|Bruit, Bad Kidneys
* [[Fever]]
|- 
* [[Hyperaldosteronism]] ([[Conn's syndrome]]): Hypertension is a feature of a variety of adrenal cortical abnormalities. In primary [[aldosteronism]] there is a clear relationship between the aldosterone-induced sodium retention and the hypertension. Suspect hyperaldosteronism if the patient has an unusual sensitivity to a diuretic in causing [[hypokalemia]], if there is frequent hypokalemia, and if there is a normal potassium in the setting of ACE inhibition with a potassium spairing diureticThe [[plasma renin activity]] is suppressed and there is elevated [[aldosterone]] on [[adrenal vein]] sampling.
|bgcolor="#f3f3f3"| C
:*[[Idiopathic hyperaldosteronism]]
|Catecholamines, Coarctation, Cushing’s Syndrome
:*[[Liddle's syndrome]] (also called [[pseudoaldosteronism]])
|-   
:*[[Glucocorticoid remediable aldosteronism]]
|bgcolor="#f3f3f3"| D
* [[Hyperthyroidism]]
|Drugs, Diet
* [[Hypothyroidism]]
|-
* [[Increased salt intake]]
|bgcolor="#f3f3f3"| E
* [[Metabolic syndrome]]
|Erythropoitin, Endocrine Disorders
* Non-compliance with antihypertensives
|}
* [[Obesity]]
 
* [[Obstructive sleep apnea]] can cause a rise in [[catecholamines]]
=====Accuracy=====
* Perioperative hypertension: this is the development of hypertension just before, during or after surgeryIt may occur before surgery during the induction of anesthesia; intraoperatively e.g. by pain-induced [[sympathetic nervous system]] stimulation; in the early postanesthesia period, e.g. by pain-induced [[sympathetic stimulation]], [[hypothermia]], [[hypoxia]], or hypervolemia from excessive intraoperative fluid therapy; and in the 24 to 48 hours after the postoperative period as fluid is mobilized from the extravascular space. In addition, hypertension may develop perioperatively because of discontinuation of long-term antihypertensive medication.
An accurate assessment and re-assessment of blood pressures is an essential first step when a patient presents with high blood pressure.  The accuracy of home BP measurements should be confirmed by calibrating the patient's measurement technique with that obtained in the doctor's office.
* [[Pheochromocytoma]]: Caused by an excessive secretion of norepinephrine and epinephrine which promotes vasoconstriction.  Consider this diagnosis in the patient who has [[headaches]], [[diaphoresis]], [[palpitations]], [[orthostatic hypotension]], hypertension with anesthesia induction and those patients with a [[dilated cardiomyopathy]] (which a [[pheochromocytoma]] can cause) who still have an elevated [[blood pressure]] despite a loss in [[cardiac output]].  This diagnosis is confirmed by demonstrating increased urinary excretion of epinephrine and norepinephrine and/or their metabolites ([[vanillylmandelic acid]]).
 
* [[Pregnancy]] causing [[gestational hypertension]]  
=====Apnea=====
* [[Renovascular hypertension]]: Due to [[fibromuscular dysplasia]] and [[renal artery stenosis]].  In both conditions, increased blood pressure occurs due to narrowing of arteries supplying to the kidney.  Decreased perfusion of renal tissue due to [[stenosis]] of a main or branch renal artery activates the [[renin-angiotensin system]].
[[Obstructive sleep apnea]] (OSA) is a respiratory disease characterized by repetitive narrowing or collapse of the upper airway during sleep<ref name="pmid18250206">{{cite journal| author=Eckert DJ, Malhotra A| title=Pathophysiology of adult obstructive sleep apnea. | journal=Proc Am Thorac Soc | year= 2008 | volume= 5 | issue= 2 | pages= 144-53 | pmid=18250206 | doi=10.1513/pats.200707-114MG | pmc=PMC2628457 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18250206  }} </ref> leading to [[apnea]], [[hypopnea]], and a nocturnal decrease in oxygen tension.<ref name="pmid8872797">{{cite journal| author=Silverberg DS, Oksenberg A| title=Essential and secondary hypertension and sleep-disordered breathing: a unifying hypothesis. | journal=J Hum Hypertens | year= 1996 | volume= 10 | issue= 6 | pages= 353-63 | pmid=8872797 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8872797  }} </ref> Symptoms and signs that might suggest OSA include daytime [[somnolence]], [[obesity]], [[snoring]], and [[morning headache]].<ref name="pmid10593319">{{cite journal| author=Victor LD| title=Obstructive sleep apnea. | journal=Am Fam Physician | year= 1999 | volume= 60 | issue= 8 | pages= 2279-86 | pmid=10593319 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10593319  }} </ref> Patients with sleep apnea also tend to have drug resistant hypertension and may retain sodium. Diagnosis is made by polysomnography. Treatment relies on maintaining airway patency at night and includes, among others, the use of continuous positive airway pressure (CPAP).
:Tests to Assess for Renovascular Hypertension
 
:*Renal Ultrasound: Look for a difference in the size of kidneys
=====Aldosterone=====
:*CT: Although there is a dye load, there is no Gadollinium which can be toxic with an MRI, the images are better than MRI
Primary (hyporeninemic) and secondary (hyperreninemic) [[hyperaldosteronism]] result in excess sodium and water retention with slight [[hypernatremia]] along with excretion of [[potassium]] resulting in [[hypokalemia]] in one half of patients.<ref name="pmid9854120">{{cite journal| author=Ganguly A| title=Primary aldosteronism. | journal=N Engl J Med | year= 1998 | volume= 339 | issue= 25 | pages= 1828-34 | pmid=9854120 | doi=10.1056/NEJM199812173392507 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9854120  }} </ref>  Common symptoms of hyperaldosteronism include drug resistant hypertension, [[fatigue]], [[headache]], intermittent [[paralysis]], [[muscle weakness]], and [[numbness]].  The most common cause of [[primary hyperaldosteronism]] is an aldosterone-producing [[adenoma]] (an "[[aldosteronoma]]"), i.e. [[Conn’s Syndrome]]. [[Secondary hyperaldosteronism]] is due to an overactive [[RAAS]], as seen in renin-secreting tumors, [[renal artery stenosis]], [[pheochromocytoma]], and other syndromes.  The diagnosis is made by measuring the ratio of plasma aldosterone to plasma renin activity.<ref name="pmid7923898">{{cite journal| author=Gordon RD, Stowasser M, Tunny TJ, Klemm SA, Rutherford JC| title=High incidence of primary aldosteronism in 199 patients referred with hypertension. | journal=Clin Exp Pharmacol Physiol | year= 1994 | volume= 21 | issue= 4 | pages= 315-8 | pmid=7923898 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=7923898  }} </ref> It is elevated in [[primary hyperaldosteronism]] and decreased/normal with elevated [[renin]] in [[secondary hyperaldosteronism]].  It should be noted that obesity can also cause [[aldosterone]] levels to be elevated.  Treatment depends upon the underlying etiology: surgery to resect an adenoma causing [[primary hyperaldosteronism]] and [[spironolactone]], an aldosterone antagonist to treat [[secondary hyperaldosteronism]].
:*Indications for Arteriographic Imaging to Rule Out Renovascular Hypertension<ref>J Vasc Interv Rad 2006 17:1383-1398</ref>
 
::Class I
===== Bruit=====
:::*Hypertension in a patient < 30 yrs old
[[Renovascular hypertension]] is due to decreased blood supply to the [[kidneys]] secondary to renal artery stenosis and it is the most common correctable cause of secondary hypertension. [[Atherosclerosis]] of the renal artery ([[renal artery stenosis]]) in older patients above 50 years of age<ref name="pmid12196346">{{cite journal| author=Chade AR, Rodriguez-Porcel M, Grande JP, Krier JD, Lerman A, Romero JC et al.| title=Distinct renal injury in early atherosclerosis and renovascular disease. | journal=Circulation | year= 2002 | volume= 106 | issue= 9 | pages= 1165-71 | pmid=12196346 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12196346  }} </ref> and [[fibromuscular dysplasia]] in younger patients are the most common etiologies.
:::*Severe increase in blood pressure in a patient > 55 yrs old
 
:::*Accelerated increase in BP
According to the 2013 ACC/AHA Guidelines for the Management of PAD<ref name="pmid23457117">{{cite journal| author=Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH et al.| title=Management of patients with peripheral artery disease (compilation of 2005 and 2011 ACCF/AHA guideline recommendations): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. | journal=Circulation | year= 2013 | volume= 127 | issue= 13 | pages= 1425-43 | pmid=23457117 | doi=10.1161/CIR.0b013e31828b82aa | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23457117  }} </ref>, diagnostic work-up for renal artery stenosis is indicated in the following conditions:
:::*Resistant increase in BP
 
:::*Complicated malignant increase in BP
====Class I Recommendations<ref name="pmid23457117">{{cite journal| author=Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH et al.| title=Management of patients with peripheral artery disease (compilation of 2005 and 2011 ACCF/AHA guideline recommendations): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. | journal=Circulation | year= 2013 | volume= 127 | issue= 13 | pages= 1425-43 | pmid=23457117 | doi=10.1161/CIR.0b013e31828b82aa | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23457117 }} </ref>====
:::*Reduction in [[GFR]] or rise in Cr with [[RAS]] blockade
*Hypertension of any stage before the age of 30
:::*> 1.5 cm difference in renal size on ultrasound
*Stage II hypertension (severe hypertension systolic blood pressure > 180 mm Hg or diastolic blood pressure > 120 mm Hg) in patients older than 55 years. If only mild hypertension is present, then renal artery stenosis is the underlying cause in only 1% of patients <ref name="pmid3872106">{{cite journal| author=Lewin A, Blaufox MD, Castle H, Entwisle G, Langford H| title=Apparent prevalence of curable hypertension in the Hypertension Detection and Follow-up Program. | journal=Arch Intern Med | year= 1985 | volume= 145 | issue= 3 | pages= 424-7 | pmid=3872106 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3872106  }} </ref>, but if the blood pressure is markedly elevated, then the risk of renal artery stenosis goes up 10 to 50 fold.
:::*Flash pulmonary edema
*Accelerated condition of previously controlled hypertension
::Class IIa
*[[Resistant hypertension]]
:::*Unexplained [[renal failure]]
*[[Malignant hypertension]]
::Class IIb
*New [[azotemia]] (50% rise in [[creatinine]] that is sustained) within one week after administration of an [[Angiotensin Converting Enzyme]] ([[ACE]])inhibitor or [[ARB]]
:::*Multivessel [[CAD]] or [[PAD]]
*Unexplained atrophic kidney or asymmetric kidneys that differ by > 1.5 cm. If the kidney is < 9 cm in size, there is a 75% chance that renal artery stenosis is present.
:::*Unexplained [[CHF]] or refractory angina
*Severe hypertension, impaired renal function, and recurrent flash [[pulmonary edema]]
* [[Scleroderma]]
 
* [[Stress]]
====Class IIa Recommendations<ref name="pmid23457117">{{cite journal| author=Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH et al.| title=Management of patients with peripheral artery disease (compilation of 2005 and 2011 ACCF/AHA guideline recommendations): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. | journal=Circulation | year= 2013 | volume= 127 | issue= 13 | pages= 1425-43 | pmid=23457117 | doi=10.1161/CIR.0b013e31828b82aa | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23457117  }} </ref>====
* [[White coat hypertension]]
*Unexplained renal failure including patients starting renal replacement therapy
 
====Class IIb Recommendations<ref name="pmid23457117">{{cite journal| author=Anderson JL, Halperin JL, Albert NM, Bozkurt B, Brindis RG, Curtis LH et al.| title=Management of patients with peripheral artery disease (compilation of 2005 and 2011 ACCF/AHA guideline recommendations): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. | journal=Circulation | year= 2013 | volume= 127 | issue= 13 | pages= 1425-43 | pmid=23457117 | doi=10.1161/CIR.0b013e31828b82aa | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23457117  }} </ref>====
*Presence of multi vessel [[CAD]] and no clinical clues of ARAS or PAD
*Unexplained [[CHF]] or [[refractory angina]]
 
====Other Indications====
* Severe hypertension in the presence of polyvascular disease ([[coronary artery disease]] or [[peripheral arterial disease]])
* A unilateral systolic-diastolic [[abdominal bruit]]. Although a bruit is infrequent in documented renal artery stenosis (the sensitivity is only 40% percent) if it is auscultated, it is associated with a very high specificity of 99%.<ref name="pmid7563536">{{cite journal| author=Turnbull JM| title=The rational clinical examination. Is listening for abdominal bruits useful in the evaluation of hypertension? | journal=JAMA | year= 1995 | volume= 274 | issue= 16 | pages= 1299-301 | pmid=7563536 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=7563536  }} </ref>
*The association of race with renal artery stenosis is not clear. Reports that it is observed more often in white patients may be due to reporting bias.<ref name="pmid2022411">{{cite journal| author=Svetkey LP, Kadir S, Dunnick NR, Smith SR, Dunham CB, Lambert M et al.| title=Similar prevalence of renovascular hypertension in selected blacks and whites. | journal=Hypertension | year= 1991 | volume= 17 | issue= 5 | pages= 678-83 | pmid=2022411 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2022411  }} </ref>
 
Definitive diagnosis is made by magnetic resonance angiography (MRA) and renal arteriography.<ref name="pmid11416635">{{cite journal| author=Wofford MR, King DS, Wyatt SB, Jones DW| title=Secondary Hypertension: Detection and Management for the Primary Care Provider. | journal=J Clin Hypertens (Greenwich) | year= 2000 | volume= 2 | issue= 2 | pages= 124-131 | pmid=11416635 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11416635  }} </ref> Other diagnostic methods include duplex ultrasound scanning<ref name="pmid22595689">{{cite journal| author=AbuRahma AF, Srivastava M, Mousa AY, Dearing DD, Hass SM, Campbell JR et al.| title=Critical analysis of renal duplex ultrasound parameters in detecting significant renal artery stenosis. | journal=J Vasc Surg | year= 2012 | volume= 56 | issue= 4 | pages= 1052-9, 1060.e1; discussion 1059-60 | pmid=22595689 | doi=10.1016/j.jvs.2012.03.036 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22595689  }} </ref>, and captopril-augmented radio-isotopic renogram<ref name="pmid10482969">{{cite journal| author=Aitchison F, Page A| title=Diagnostic imaging of renal artery stenosis. | journal=J Hum Hypertens | year= 1999 | volume= 13 | issue= 9 | pages= 595-603 | pmid=10482969 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10482969 }} </ref>. Treatment is based upon the underlying etiology.
 
===== Bad Kidney (Chronic Renal Failure)=====
Renal parenchymal disease blunts the kidney’s physiological ability to maintain appropriate [[blood pressure]]. Notably, [[hypertension]] is both a cause and a consequence of renal parenchymal disease; the two are closely associated and may potentiate each other.<ref name="pmid11866231">{{cite journal| author=Soergel M, Schaefer F| title=Effect of hypertension on the progression of chronic renal failure in children. | journal=Am J Hypertens | year= 2002 | volume= 15 | issue= 2 Pt 2 | pages= 53S-56S | pmid=11866231 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11866231  }} </ref> The diagnosis is made by demonstration of a decreased [[GFR]]. The mechanisms by which renal parenchymal disease leads to the development of hypertension are numerous and include activation of the local [[RAAS]], release of vasoconstrictor [[cytokines]], and inappropriate [[natriuresis]] for any given [[blood pressure]].
 
=====Catecholamines=====
Catecholamine excess occurs in several non-disease states, such as acute [[stress]], the administration of medications with sympathomimetic activity, and illicit drug use such as [[cocaine]] and these conditions can be ruled out by thorough history taking. [[Pheochromocytoma]], a tumor of the adrenal gland leading to excess secretion of [[epinephrine]], should be considered in young patients with the triad of intermittent hypertensive episodes causing [[headache]], [[sweating]], and [[tachycardia]]. However, [[pheochromocytoma]] in older adults or a presentation with sustained hypertension is not uncommon. Diagnostic studies to evaluate pheochromocytoma include measurement of plasma free [[metanephrines]] and urinary fractionated metanephrines.  The diagnostic value of plasma and urinary catecholamines is of limited value given the very short half-life of catecholamines.  Treatment is usually by surgical resection of the secreting tumor with appropriate adrenergic blockade.<ref name="pmid11903030">{{cite journal| author=Lenders JW, Pacak K, Walther MM, Linehan WM, Mannelli M, Friberg P et al.| title=Biochemical diagnosis of pheochromocytoma: which test is best? | journal=JAMA | year= 2002 | volume= 287 | issue= 11 | pages= 1427-34 | pmid=11903030 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11903030  }} </ref>
 
=====Coarctation=====
[[Coarctation of the aorta]] is a [[congenital heart defect]], caused by a narrowing in a segment of the ascending or [[descending aorta]].  The diagnosis is often made in a neonate or an infant as a result of a weak femoral pulse or asymmetric brisk brachial pulses.  [[Hypertension]] occurs as a result of a reduction in the effective circulation at the level of the [[kidneys]] which respond by increasing plasma volume which in turn causes hypertension in the upper extremities.  Diagnosis is by [[CT angiography]], but can also be made in neonates and infants by ultrasound of the heart and the great vessels. Definitive treatment is by surgical correction and or stenting.
 
=====Cushing’s Syndrome=====
[[Cushing's syndrome]] is an endocrine disorder caused by prolonged exposure to high endogenous or exogenous [[cortisol]] levels.  Hypertension in [[Cushing’s syndrome]] has been classically attributed to the [[mineralocorticoid]] effects of cortisol. It manifests as an absent fall of nocturnal [[blood pressure]] physiologically seen in normotensive subjects with associated disturbance in the adrenocorticotropic hormone-glucocorticoid system.<ref name="pmid3397172">{{cite journal| author=Imai Y, Abe K, Sasaki S, Minami N, Nihei M, Munakata M et al.| title=Altered circadian blood pressure rhythm in patients with Cushing's syndrome. | journal=Hypertension | year= 1988 | volume= 12 | issue= 1 | pages= 11-9 | pmid=3397172 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3397172  }} </ref> Symptoms of Cushing's syndrome include  rapid [[obesity|weight gain]], particularly of the trunk and face with sparing of the limbs ([[central obesity]]), a round face often referred to as a "[[moon face]]" along with central obesity, excess [[sweating]], [[proximal muscle weakness]], [[ecchymoses]], [[insomnia]], reduced [[libido]], [[impotence]], [[amenorrhoea]], [[infertility]] and psychological disturbances, ranging from [[Euphoria (emotion)|euphoria]] to [[psychosis]]. [[clinical depression|Depression]] and [[anxiety]].<ref>{{cite book |title=The American Psychiatric Publishing Textbook of Neuropsychiatry and Behavioral Neurosciences |last=Yudofsky |first=Stuart C. |coauthors=Robert E. Hales |edition=5th |year=2007 |publisher=American Psychiatric Pub, Inc. |isbn=1585622397 }}</ref> Although an ideal diagnostic test is not considered yet available, clinicians often assess the 24-hour urinary [[cortisol]] excretion<ref name="pmid3958132">{{cite journal| author=Contreras LN, Hane S, Tyrrell JB| title=Urinary cortisol in the assessment of pituitary-adrenal function: utility of 24-hour and spot determinations. | journal=J Clin Endocrinol Metab | year= 1986 | volume= 62 | issue= 5 | pages= 965-9 | pmid=3958132 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3958132  }} </ref>, a low-dose [[dexamethasone suppression test]]<ref name="pmid14315650">{{cite journal| author=NUGENT CA, NICHOLS T, TYLER FH| title=Diagnosis of Cushing’s Syndrome; Single Dose Dexamethasone Suppression Test. | journal=Arch Intern Med | year= 1965 | volume= 116 | issue=  | pages= 172-6 | pmid=14315650 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14315650  }} </ref>, late evening serum or salivary cortisol<ref name="pmid9709931">{{cite journal| author=Raff H, Raff JL, Findling JW| title=Late-night salivary cortisol as a screening test for Cushing's syndrome. | journal=J Clin Endocrinol Metab | year= 1998 | volume= 83 | issue= 8 | pages= 2681-6 | pmid=9709931 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9709931  }} </ref>, and a [[CRH]] a following a [[dexamethasone suppression test]] to establish the diagnosis.<ref name="pmid8386285">{{cite journal| author=Yanovski JA, Cutler GB, Chrousos GP, Nieman LK| title=Corticotropin-releasing hormone stimulation following low-dose dexamethasone administration. A new test to distinguish Cushing's syndrome from pseudo-Cushing's states. | journal=JAMA | year= 1993 | volume= 269 | issue= 17 | pages= 2232-8 | pmid=8386285 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8386285  }} </ref>


==Common causes of Resistant hypertension<ref name="pmid12748199">{{cite journal| author=Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JL et al.| title=The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: the JNC 7 report. | journal=JAMA | year= 2003 | volume= 289 | issue= 19 | pages= 2560-72 | pmid=12748199 | doi=10.1001/jama.289.19.2560 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12748199}}</ref>==
=====Drugs=====
*'''Improper blood pressure measurement'''
An extensive list of drugs can be associated with hypertension. The most common agents include immunosuppressive agents, non-steroidal anti-inflammatory drugs, [[oral contraceptive pills]], some weight loss agents, stimulants, monoamine oxidase inhibitors, triptans, ergotamines, and sympathomimetics.<ref name="pmid12537168">{{cite journal| author=Onusko E| title=Diagnosing secondary hypertension. | journal=Am Fam Physician | year= 2003 | volume= 67 | issue= 1 | pages= 67-74 | pmid=12537168 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12537168  }} </ref>


*'''Volume overload'''
=====Diet=====
**Excess sodium intake
In addition to the association of [[obesity]] with hypertension, the 2001 study “Effects on Blood Pressure of Reduced Dietary Sodium and the Dietary Approaches to Stop Hypertension (DASH) Diet” concluded that a high sodium diet above the recommended 100 mmol per day (2.4 g of sodium or 6 g of sodium chloride salt) is associated with hypertension. As a result, reduction of sodium levels below 100 mmol per day and following the DASH diet (rich in vegetables, fruits, with low-fat dairy products) can significantly lower BP.<ref name="pmid11136953">{{cite journal| author=Sacks FM, Svetkey LP, Vollmer WM, Appel LJ, Bray GA, Harsha D et al.| title=Effects on blood pressure of reduced dietary sodium and the Dietary Approaches to Stop Hypertension (DASH) diet. DASH-Sodium Collaborative Research Group. | journal=N Engl J Med | year= 2001 | volume= 344 | issue= 1 | pages= 3-10 | pmid=11136953 | doi=10.1056/NEJM200101043440101 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11136953  }} </ref>  Ingestion of excessive amounts of [[liquorice]] can lead to elevation in the [[blood pressure]].
**Volume retention from kidney disease
**Inadequate [[diuretic]] therapy


*'''Drug-induced or other causes'''
=====Erythropoietin=====
**Non-adherence
Elevated erythropoietin is typically seen in [[COPD]] patients who have functional anemia due to chronic [[hypoxia]] and in hematologic disorders such as polycythemia. The pathogenesis of erythropoietin-induced hypertension includes increased hematocrit and blood viscosity, altered sensitivity to vasopressors, dysregulated vasodilatory factors, and vascular cell growth causing arterial remodeling and changes in arterial smooth musculature.<ref name="pmid10213636">{{cite journal| author=Vaziri ND| title=Mechanism of erythropoietin-induced hypertension. | journal=Am J Kidney Dis | year= 1999 | volume= 33 | issue= 5 | pages= 821-8 | pmid=10213636 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10213636  }} </ref> Diagnosis and treatment are etiology-dependent.
**Inadequate doses
**Inappropriate combinations
**[[NSAIDs]], COX inhibitors
**[[Cocaine]], [[amphetamines]], other illicit drugs
**Sympathomimetics (decongestants, anorectics)
**[[Oral contraceptive therapy]]
**Adrenal steroid hormones
**[[Cyclosporine]], [[tacrolimus]]
**[[Erythropoietin]]
**[[Licorice]] (including some chewing [[tobacco]])
**Selected over the counter dietary supplements (like ephedra, ma huang, bitter orange)


==Less Common Cuases==
=====Endocrine=====
* [[Acromegaly]]
In addition to the more common endocrine causes of hypertension such as hyperaldosteronism, [[Cushing’s syndrome]], and [[pheochromocytoma]], several other endocrine changes can cause hypertension. Both hypothyroidism and hyperthyroidism can cause hypertension by volume retention and by increased cardiac output, respectively. Also, [[hyperparathyroidism]] and hypovitaminosis D can cause hypertension due to poorly understood mechanisms, where [[parathyroidectomy]] seems to significantly decrease blood pressure in patients with parathyroid disease and elevated BP.<ref name="pmid22145139">{{cite journal| author=Chopra S, Cherian D, Jacob JJ| title=The thyroid hormone, parathyroid hormone and vitamin D associated hypertension. | journal=Indian J Endocrinol Metab | year= 2011 | volume= 15 Suppl 4 | issue=  | pages= S354-60 | pmid=22145139 | doi=10.4103/2230-8210.86979 | pmc=PMC3230087 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22145139  }} </ref>  [[Acromegaly]] can also be a cause of hypertension.
* [[Coarctation of the aorta]]
* [[Hyperparathyroidism]]
* [[Liquorice]] (black, not red). Drives up cortisol causing a Cushing-like syndrome.
* [[Neurofibromatosis]]


==Complete List of Causes by Organ System==
==Causes by Organ System==


{|style="width:80%; height:100px" border="1"
{|style="width:80%; height:100px" border="1"
|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular'''
|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular'''
|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | [[Aortic regurgitation]], [[Aortic dissection]], [[Acute severe vascular damage]], [[Adams Nance syndrome ]], [[Aneurysm]], [[Aortic coarctation ]], [[Aortic stenosis]], [[Arterial occlusive disease, progressive - -- heart defects -- bone fragility -- brachysyndactyly ]], [[Arteriosclerosis]], [[Atheroma]], [[Avasthey syndrome ]], [[Carotid paraganglioma ]],Congenital [[Mitral stenosis ]], [[Eisenmenger's Syndrome ]], [[Fibromuscular dysplasia of arteries ]], [[Grange syndrome ]], [[Hemangiomatosis]] - familial pulmonary capillary, [[Hypertensive heart disease ]], [[Pulmonary artery agenesis ]], [[Vasculitis ]], [[Patent ductus arteriosus]], [[Third degree AV block]]
|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | [[Aortic regurgitation]], [[aortic dissection]], acute severe vascular damage, [[adams Nance syndrome ]], [[aneurysm]], [[aortic coarctation ]], [[aortic stenosis]], [[arterial occlusive disease, progressive - -- heart defects -- bone fragility -- brachysyndactyly ]], [[arteriosclerosis]], [[atheroma]], [[avasthey syndrome ]], [[carotid paraganglioma ]],Congenital [[mitral stenosis ]], [[eisenmenger's Syndrome ]], [[fibromuscular dysplasia of arteries ]], [[grange syndrome ]], hemangiomatosis (familial pulmonary capillary disease), [[hypertensive heart disease ]], [[pulmonary artery agenesis ]], [[vasculitis ]], [[patent ductus arteriosus]], [[third degree AV block]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Chemical / poisoning'''
| '''Chemical / poisoning'''
|bgcolor="Beige"| [[Acetaldehyde ]], [[Aristolochic acid]] poisoning , [[Arizona Bark Scorpion poisoning ]], [[Black widow spider envenomation ]], [[Cadmium poisoning]], [[Cocaine]] poisoning , [[Ecstasy]] abuse , [[Ginseng ]], [[Heavy metal poisoning]], Indian [[Tobacco]] poisoning, [[Jimsonweed poisoning ]], [[Lead]] poisoning , [[Lockwood-Feingold syndrome ]], [[Mustard tree poisoning ]], [[Nicotine]] addiction , [[Pseudoephedrine]] poisoning , [[Silicosis ]], [[Toxic mushrooms -- Psychedelic ]], [[Lobelia]] poisoning
|bgcolor="Beige"| [[Acetaldehyde ]], [[aristolochic acid]] poisoning , [[arizona Bark Scorpion poisoning ]], [[black widow spider envenomation ]], [[cadmium poisoning]], [[cocaine]], [[ecstasy]] abuse , [[ginseng ]], [[heavy metal poisoning]], Indian [[tobacco]] poisoning, [[jimsonweed poisoning ]], [[lead poisoning]] , [[lockwood-Feingold syndrome ]], [[mustard tree poisoning ]], [[nicotine]] addiction , [[pseudoephedrine]] poisoning , [[silicosis ]], [[toxic mushrooms -- Psychedelic ]], [[lobelia]] poisoning
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
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|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Drug Side Effect'''
| '''Drug Side Effect'''
|bgcolor="Beige"| [[Almotriptan]], [[Dihydroergotamine]], [[Ergotamine]], [[Frovatriptan]], [[Isometheptene]], [[Rizatriptan]], [[Sumatriptan]], [[Zolmitriptan]], [[Amitriptyline]], [[Cyclosporine]], [[Desipramine]], [[Dexamethasone]] sensitive hypertension, [[Doxepin]], [[Ephedrine]], [[Glucocorticoid resistance ]], [[Imipramine]], [[Nasal decongestants]], [[Nortriptyline]], [[Combined oral contraceptive pill]], [[Phencyclidine]], [[Phenylpropanolamine]], [[Protriptyline]], [[Sedative dependence]], [[Serotonin toxicity]], [[Steroid abuse]], [[Pseudoephedrine]]
|bgcolor="Beige"| [[almotriptan]], [[amitriptyline]], [[Asenapine maleate]], [[Atropine]], [[Beractant]], [[Betamethasone valerate]], [[Benzphetamine]], [[Betamethasone dipropionate]], [[Butorphanol]], [[Cidofovir]], [[cocaine]], [[combined oral contraceptive pill]], [[cyclosporine]], [[caspofungin acetate]], [[desipramine]], [[Desmopressin]], [[Desogestrel and Ethinyl Estradiol]], [[Diethylpropion]], [[dihydroergotamine]], [[diflunisal]], [[Dimercaprol]], [[Dipivefrine]], [[doxepin]], [[Drospirenone and Ethinyl estradiol]], [[Eculizumab]], [[Eletriptan]], [[ephedrine]], [[ergotamine]], [[Erythropoietin]], [[Estropipate]], [[etodolac]], [[febuxostat]], [[Florbetapir F-18]], [[formoterol]], [[frovatriptan]], [[gadoterate]], [[glucocorticoid resistance ]], [[gadopentetate]], [[Hydrocortisone]], [[Hydroxocobalamin]], [[Indomethacin]], [[imipramine]], [[interferon alfacon-1]], [[isometheptene]], [[Ketorolac tromethamine]], [[Lanreotide]], [[Leuprolide]], [[Levalbuterol]], [[Medroxyprogesterone]], [[Mefenamic acid]], [[Megestrol]], [[Meloxicam]],  [[Meloxicam]], [[Meropenem]], [[Metipranolol]], [[Methylene blue]], [[Methylphenidate]], [[Methylprednisolone]],  [[Metoclopramide]], [[Methoxy polyethylene glycol-epoetin beta]], [[Mifepristone]], [[Milnacipran hydrochloride]], [[Mirabegron]], [[monoamine oxidase inhibitor]]s, [[Nabilone]], [[Naphazoline]] , [[nasal decongestants]], [[Naproxen and esomeprazole magnesium]], [[Norethindrone acetate and Ethinyl estradiol]], [[Norgestimate and Ethinyl estradiol]], [[Norgestrel and Ethinyl estradiol]],  [[nortriptyline]], [[NSAIDs]], [[Oxaprozin]], [[Oxcarbazepine]], [[Pentamidine Isethionate]], [[Pergolide]], [[phencyclidine]], [[Phendimetrazine]], [[phenylpropanolamine]], [[Pilocarpine]], [[Piroxicam]], [[Pralidozxime]], [[protriptyline]], [[pseudoephedrine]], [[prednisolone]], [[Prednisone]], [[Ramucirumab]], [[Rasagiline]], [[Repaglinide and Metformin hydrochloride]], [[rizatriptan]], [[Rotigotine]], [[sedative dependence]], [[serotonin toxicity]], [[Sertraline]], [[Sipuleucel-T]], [[Sorafenib]], [[steroid abuse]], [[Sulindac]], [[sumatriptan]], [[Sunitinib]], [[Thalidomide]], [[Tiagabine]], [[Tocilizumab]], [[Tolmetin]], [[Travoprost]], [[Triamcinolone]], [[Valganciclovir hydrochloride]], [[zolmitriptan]], [[Zolmitriptan]], [[Zonisamide]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
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|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Endocrine'''
| '''Endocrine'''
|bgcolor="Beige"| [[Carcinoid Syndrome]], [[Acromegaly ]], [[Adrenal incidentaloma ]], [[Alcohol-induced pseudo-Cushing syndrome ]], [[Apparent mineralocorticoid excess ]], [[Congenital adrenal hyperplasia]] - 11-Beta-hydroxylase deficiency, [[Congenital adrenal hyperplasia]] - 17-alpha-hydroxylase deficiency, [[Conn's syndrome]], [[Cushing's disease]], [[Cushing's syndrome ]], [[Diabetes]], Familial  [[Cushing syndrome ]], [[Graves Disease ]], [[Hyperadrenalism ]], [[Hyperparathyroidism ]], [[Hyperpituitarism ]], [[Hyperthyroidism]], [[Hypothyroidism]],[[Isolated secretion of corticosterone]], [[Isolated secretion of deoxycorticosterone]], [[Mineralocorticoid excess]], [[Multiple endocrine neoplasia]] type 1, [[Myxoedema]], [[Pheochromocytoma]], [[Primary aldosteronism]], [[Primary cortisol resistance]], [[Pseudohyperaldosteronism ]], [[Pseudohypoaldosteronism ]], [[Schroeder syndrome 1 ]], [[Hyperthyroidism]], [[Hypoglycemia]], [[Isolated secretion of 18-hydroxy-deoxycorticosterone]], [[Renin-secreting tumors]]
|bgcolor="Beige"| [[Carcinoid Syndrome]], [[acromegaly ]], [[adrenal incidentaloma ]], [[alcohol-induced pseudo-Cushing syndrome ]], [[apparent mineralocorticoid excess ]], [[congenital adrenal hyperplasia due to 11-Beta-hydroxylase deficiency]], [[congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency]], [[Conn's syndrome]], [[cushing's disease]], [[cushing's syndrome ]], [[diabetes]], Familial  [[cushing syndrome ]], [[graves disease ]], [[hyperadrenalism ]], [[hyperparathyroidism ]], [[hyperpituitarism ]], [[hyperthyroidism]], [[hypothyroidism]], isolated secretion of corticosterone, isolated secretion of deoxycorticosterone, [[mineralocorticoid excess]], [[multiple endocrine neoplasia type 1]], [[myxoedema]], [[pheochromocytoma]], [[primary aldosteronism]], primary cortisol resistance, [[pseudohyperaldosteronism ]], [[pseudohypoaldosteronism ]], [[Schroeder syndrome 1 ]], [[hyperthyroidism]], [[hypoglycemia]], isolated secretion of 18-hydroxy-deoxycorticosterone, [[renin-secreting tumors]], [[dexamethasone sensitive hypertension]]
|-  
|-  
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
Line 139: Line 215:
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Gastroenterologic'''
| '''Gastroenterologic'''
|bgcolor="Beige"| [[Hepatorenal tyrosinemia ]], [[Pancreatitis]], [[Retroperitoneal Fibrosis]]
|bgcolor="Beige"| [[Hepatorenal tyrosinemia ]], [[pancreatitis]], [[retroperitoneal Fibrosis]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Genetic'''
| '''Genetic'''
|bgcolor="Beige"|  [[Congenital adrenal hyperplasia]] - 11-Beta-hydroxylase deficiency, [[Congenital adrenal hyperplasia]] -17-alpha-hydroxylase deficiency, [[Cockayne syndrome ]], [[Down Syndrome ]], [[Fabry's Disease ]], [[Isolated secretion of 18-hydroxy-deoxycorticosterone]], [[Pierre Robin's sequence ]], [[Senior-Loken Syndrome]], [[Turner Syndrome ]], [[Vater-like syndrome with pulmonary hypertension, abnormal ears and growth deficiency ]], [[Von Hippel-Lindau Disease ]], [[Werner syndrome ]], [[Williams Syndrome ]], [[Gaucher disease type 3 ]], [[Mucopolysaccharidosis]] type I [[Hurler syndrome ]]
|bgcolor="Beige"|  [[Congenital adrenal hyperplasia due to 11-Beta-hydroxylase deficiency]], [[congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency]], [[cockayne syndrome ]], [[down Syndrome ]], [[Fabry's Disease ]], isolated secretion of 18-hydroxy-deoxycorticosterone, [[Pierre Robin's sequence ]], [[Senior-Loken Syndrome]], [[Turner Syndrome ]], [[Vater-like syndrome, with pulmonary hypertension, abnormal ears and growth deficiency ]], [[Von Hippel-Lindau Disease ]], [[Werner syndrome ]], [[Williams Syndrome ]], [[Gaucher disease type 3 ]], [[mucopolysaccharidosis]] type I [[Hurler syndrome ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Hematologic'''
| '''Hematologic'''
|bgcolor="Beige"| Atypical [[Hemolytic uremic syndrome]], Catastrophic [[Antiphospholipid Syndrome ]], Essential mixed [[Cryoglobulinemia ]], [[Faye-Petersen-Ward-Carey syndrome ]], [[Hemolytic uremic syndrome ]], [[Hypereosinophilic syndrome ]], [[Liddle's syndrome]], Multicentric [[Reticulohistiocytosis ]], [[Polycythemia ]], [[Thromboembolism ]], [[Thrombotic thrombocytopenic purpura]]
|bgcolor="Beige"| [[Anemia]], Atypical [[Hemolytic uremic syndrome]], Catastrophic [[antiphospholipid syndrome ]], Essential mixed [[cryoglobulinemia ]], [[Faye-Petersen-Ward-Carey syndrome ]], [[hemolytic uremic syndrome ]], [[hypereosinophilic syndrome ]], [[Liddle's syndrome]], Multicentric reticulohistiocytosis , [[polycythemia ]], [[thromboembolism ]], [[thrombotic thrombocytopenic purpura]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
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|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Infectious Disease'''
| '''Infectious Disease'''
|bgcolor="Beige"| [[Poliomyelitis]], [[Meningitis]], [[Post streptococcal glomerulonephritis ]], [[Renal tuberculosis]], [[Nipah virus encephalitis ]]
|bgcolor="Beige"| [[Poliomyelitis]], [[meningitis]], [[post streptococcal glomerulonephritis ]], [[renal tuberculosis]], [[nipah virus encephalitis ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Musculoskeletal / Ortho'''
| '''Musculoskeletal / Ortho'''
|bgcolor="Beige"| [[Acrodynia ]], [[Allain Babin Demarquez syndrome ]], Familial [[Osteodysplasia]] - Anderson type, [[Paget's disease of bone ]], [[Grange syndrome ]], [[Faye-Petersen-Ward-Carey syndrome ]], [[Oculo skeletal renal syndrome ]], [[Thieffry and Sorrell Dejerine syndrome ]]
|bgcolor="Beige"| [[Acrodynia ]], [[Allain Babin Demarquez syndrome ]], [[familial osteodysplasia - Anderson type]], [[Paget's disease of bone ]], [[Grange syndrome ]], [[Faye-Petersen-Ward-Carey syndrome ]], [[oculo skeletal renal syndrome ]], [[Thieffry and Sorrell Dejerine syndrome ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Neurologic'''
| '''Neurologic'''
|bgcolor="Beige"| [[Guillain-Barre Syndrome]], [[Autonomic dysreflexia syndrome ]], [[Binswanger's Disease ]], Brain stem [[encephalitis]], [[Central sleep apnea ]], [[Choroideremia -- hypopituitarism ]], [[Disequilibrium syndrome ]], [[Dysautonomia ]], [[Hereditary sensory and autonomic neuropathy 3 ]], [[Increased intracranial pressure]],  [[Neurofibromatosis]] syndrome Type II , [[Neurogenic hypertension ]], [[Nipah virus encephalitis ]], [[Obstructive sleep apnea ]], [[Sneddon Syndrome ]], [[Upper spinal cord lesions]], [[Wolfram's disease]], [[Meningitis]], [[Polyradiculitis]], [[Quadriplegia]], [[Adams Nance syndrome ]], [[Glycine encephalopathy]] - classical neonatal form, [[Pituitary Cancer ]], [[Fitzsimmons-Walson-Mellor syndrome ]]
|bgcolor="Beige"| [[Guillain-Barre Syndrome]], [[autonomic dysreflexia syndrome ]], [[Binswanger's Disease ]], Brain stem [[encephalitis]], [[central sleep apnea ]], [[choroideremia -- hypopituitarism ]], [[disequilibrium syndrome ]], [[dysautonomia ]], [[hereditary sensory and autonomic neuropathy 3 ]], [[increased intracranial pressure]],  [[neurofibromatosis syndrome Type II]] , [[neurogenic hypertension ]], [[nipah virus encephalitis ]], [[obstructive sleep apnea ]], [[Sneddon Syndrome ]], [[upper spinal cord lesions]], [[Wolfram's disease]], [[meningitis]], [[polyradiculitis]], [[quadriplegia]], [[Adams Nance syndrome ]], [[glycine encephalopathy]] - classical neonatal form, [[pituitary Cancer ]], [[Fitzsimmons-Walson-Mellor syndrome ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Nutritional / Metabolic'''
| '''Nutritional / Metabolic'''
|bgcolor="Beige"| [[Abdominal obesity metabolic syndrome ]], [[Acute intermittent porphyria ]], [[Congenital hepatic porphyria ]], [[Gaucher disease]] type 3, [[Glycine encephalopathy]] - classical neonatal form, [[Glycine synthase deficiency ]], [[Gouty nephropathy]], [[Metabolic syndrome]], [[Tyrosinemia ]], [[Von Gierke disease]] IB, [[Increased salt intake]], [[Mucopolysaccharidosis]] type I [[Hurler syndrome]], [[Fabry's Disease ]], [[Vitamin D -- adverse effects]]
|bgcolor="Beige"| [[Abdominal obesity metabolic syndrome ]], [[acute intermittent porphyria ]], [[congenital hepatic porphyria ]], [[Gaucher disease]] type 3, [[glycine encephalopathy]] - classical neonatal form, [[glycine synthase deficiency ]], [[gouty nephropathy]], [[liquorice]], [[metabolic syndrome]], [[tyrosinemia ]], [[Von Gierke disease]] IB, [[increased salt intake]], [[mucopolysaccharidosis]] type I [[Hurler syndrome]], [[Fabry's Disease ]], [[vitamin D -- adverse effects]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Obstetric/Gynecologic'''
| '''Obstetric/Gynecologic'''
|bgcolor="Beige"| [[Eclampsia ]], [[Fowler-Christmas-Chapple syndrome ]], [[Gestational hypertension]], [[HELLP syndrome ]], [[Ovarian dysgenesis]], [[PCOS]], [[Pregnancy toxemia /hypertension ]], [[Twin-Twin Transfusion Syndrome]]
|bgcolor="Beige"| [[Eclampsia ]], [[Fowler-Christmas-Chapple syndrome ]], [[gestational hypertension]], [[HELLP syndrome ]], [[ovarian dysgenesis]], [[PCOS]], [[pregnancy toxemia /hypertension ]], twin-twin transfusion syndrome
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Oncologic'''
| '''Oncologic'''
|bgcolor="Beige"| [[Endothelin]] producing tumor, [[Adrenal Cancer ]], Familial [[Adrenal adenoma ]], [[Renal Cancer ]], [[Neuroblastoma ]]
|bgcolor="Beige"| [[Endothelin]] producing tumor, [[adrenal Cancer ]], familial [[adrenal adenoma ]], [[renal Cancer ]], [[neuroblastoma ]]
[[Pituitary Cancer ]], [[Renin-secreting tumors]], [[Rhabdoid tumor ]], [[Wilms' tumor ]], [[Adrenal incidentaloma ]], Familial [[Renal cell carcinoma ]]
[[pituitary Cancer ]], [[renin-secreting tumors]], [[rhabdoid tumor ]], [[Wilms' tumor ]], [[adrenal incidentaloma ]], familial [[renal cell carcinoma ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Opthalmologic'''
| '''Opthalmologic'''
|bgcolor="Beige"| [[Isolated  Ectopia lentis]], [[Oculo skeletal renal syndrome ]]
|bgcolor="Beige"| Isolated  Ectopia lentis, [[oculo skeletal renal syndrome ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Overdose / Toxicity'''
| '''Overdose / Toxicity'''
|bgcolor="Beige"| [[Amphetamine]] abuse, [[Almotriptan]], [[Dihydroergotamine]], [[Ergotamine]], [[Frovatriptan]], [[Isometheptene]], [[Rizatriptan]], [[Sumatriptan]], [[Zolmitriptan]], [[Amitriptyline]], [[Cyclosporine]], [[Desipramine]], [[Dexamethasone]] sensitive hypertension, [[Doxepin]], [[Ephedrine]], [[Glucocorticoid resistance ]], [[Imipramine]], [[Nasal decongestants]], [[Nortriptyline]], [[Combined oral contraceptive pill]], [[Phencyclidine]], [[Phenylpropanolamine]], [[Protriptyline]], [[Serotonin toxicity]], [[Steroid abuse]], [[Pseudoephedrine]]
|bgcolor="Beige"| [[Amphetamine]] abuse, [[almotriptan]], [[dihydroergotamine]], [[ergotamine]], [[frovatriptan]], [[isometheptene]], [[rizatriptan]], [[sumatriptan]], [[zolmitriptan]], [[amitriptyline]], [[cyclosporine]], [[desipramine]], [[dexamethasone]] sensitive hypertension, [[doxepin]], [[ephedrine]], [[glucocorticoid resistance ]], [[imipramine]], [[nasal decongestants]], [[nortriptyline]], [[combined oral contraceptive pill]], [[phencyclidine]], [[phenylpropanolamine]], [[protriptyline]], [[serotonin toxicity]], [[steroid abuse]], [[pseudoephedrine]], [[cocaine]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
Line 192: Line 268:
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Pulmonary'''
| '''Pulmonary'''
|bgcolor="Beige"| [[Asphyxia ]], [[Bronchopulmonary dysplasia]], [[COPD ]], [[Goodpasture syndrome ]], [[Pulmonary cystic lymphangiectasis ]], [[Pulmonary embolism ]], [[Pulmonary fibrosis]] /[[granuloma ]], [[Pulmonary veno-occlusive disease ]], [[Pulmonary Lymphangiomatosis]], [[Respiratory acidosis ]], [[Respiratory failure ]], [[Unilateral pulmonary agenesis ]], [[Hyperventilation]], [[Obstructive sleep apnea ]], [[Wegener's granulomatosis ]]
|bgcolor="Beige"| [[Asphyxia ]], [[bronchopulmonary dysplasia]], [[COPD ]], [[Goodpasture syndrome ]], [[pulmonary cystic lymphangiectasis ]], [[pulmonary embolism ]], [[pulmonary fibrosis]] /[[granuloma ]], [[pulmonary veno-occlusive disease ]], pulmonary lymphangiomatosis, [[respiratory acidosis ]], [[respiratory failure ]], [[unilateral pulmonary agenesis ]], [[hyperventilation]], [[obstructive sleep apnea ]], [[Wegener's granulomatosis ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Renal / Electrolyte'''
| '''Renal / Electrolyte'''
|bgcolor="Beige"| [[Bartter's Syndrome]], [[Dissection of the renal arteries]], [[Acid-Base Imbalance ]], [[Acute Renal Failure ]], [[Albuminuria ]], [[Analgesic nephropathy syndrome ]], Autosomal dominant [[Polycystic kidney disease ]], Autosomal Recessive [[Polycystic Kidney Disease ]], Bilateral [[Renal artery stenosis ]], [[Bright's Disease ]], [[Chronic kidney disease ]], [[Chronic pyelonephritis]], Congenital [[Membranous glomerulonephritis]], [[Congenital stenosis of renal artery]], [[Congenital  Hydronephrosis ]], [[Diffuse Mesangial sclerosis]], Familial [[Renal cell carcinoma ]], [[Fitzsimmons-Walson-Mellor syndrome ]], [[Glomerulonephritis ]], [[Hereditary nephritis]] (X-linked), [[Hypoplastic kidney]], [[IgA nephropathy ]], [[Kidney arteriovenous fistula ]], [[Kimmelstiel-Wilson disease]], [[Lupus nephritis ]], [[Nephrocalcinosis ]], [[Nephrosclerosis ]], [[Nephrosis -- deafness -- urinary tract -- digital malformation ]], [[Nephrotic syndrome ]], [[Oculo skeletal renal syndrome ]], [[Pierson syndrome ]], Severe infantile [[Polycystic kidneys]] with [[Tuberous sclerosis ]], [[Post streptococcal glomerulonephritis ]], [[Renal artery thrombosis]], [[Renal emboli]], [[Renal segmental hypoplasia-induced Hypertension ]], [[Renal tuberculosis]], [[Salcedo syndrome ]], [[Simple kidney cysts ]], [[Thieffry and Sorrell Dejerine syndrome ]], [[Urinary tract infections ]], [[Urinary tract obstruction]], [[Vesicoureteral reflux ]], [[Wegener's granulomatosis ]], [[Gitelman's Syndrome]], [[Hepatorenal tyrosinemia ]], Atypical [[Hemolytic uremic syndrome]], [[Gouty nephropathy]], [[Goodpasture syndrome ]]
|bgcolor="Beige"| [[Bartter's Syndrome]], [[dissection of the renal arteries]], [[acid-base imbalance ]], [[acute renal failure ]], [[albuminuria ]], [[analgesic nephropathy syndrome ]], autosomal dominant [[polycystic kidney disease ]], autosomal recessive [[polycystic kidney disease ]], bilateral [[renal artery stenosis ]], [[Bright's Disease ]], [[chronic kidney disease ]], [[chronic pyelonephritis]], congenital [[membranous glomerulonephritis]], [[congenital stenosis of renal artery]], congenital hydronephrosis, [[diffuse mesangial sclerosis]], familial [[renal cell carcinoma ]], [[Fitzsimmons-Walson-Mellor syndrome ]], [[glomerulonephritis ]], [[hereditary nephritis]] (X-linked), [[hypoplastic kidney]], [[IgA nephropathy ]], [[kidney arteriovenous fistula ]], [[Kimmelstiel-Wilson disease]], [[lupus nephritis ]], [[nephrocalcinosis ]], [[nephrosclerosis ]], [[nephrosis -- deafness -- urinary tract -- digital malformation ]], [[nephrotic syndrome ]], [[oculo skeletal renal syndrome ]], [[Pierson syndrome ]], Severe infantile [[polycystic kidneys]] with [[tuberous sclerosis ]], [[post streptococcal glomerulonephritis ]], [[renal artery thrombosis]], [[renal artery stenosis]], [[renal emboli]], [[renal segmental hypoplasia-induced Hypertension ]], [[renal tuberculosis]], [[Salcedo syndrome ]], [[simple kidney cysts ]], [[Thieffry and Sorrell Dejerine syndrome ]], [[urinary tract infections ]], [[urinary tract obstruction]], [[vesicoureteral reflux ]], [[Wegener's granulomatosis ]], [[Gitelman's Syndrome]], [[hepatorenal tyrosinemia ]], Atypical [[hemolytic uremic syndrome]], [[gouty nephropathy]], [[Goodpasture syndrome ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Rheum / Immune / Allergy'''
| '''Rheum / Immune / Allergy'''
|bgcolor="Beige"| [[Autoimmune Vasculitis ]], [[Systemic lupus erythematosus]], Diffuse [[Systemic sclerosis ]], [[Polyarteritis nodosa ]], , [[Takayasu arteritis ]]
|bgcolor="Beige"| [[Autoimmune Vasculitis ]], [[systemic lupus erythematosus]], diffuse [[systemic sclerosis ]], [[polyarteritis nodosa ]], [[Takayasu arteritis ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
Line 208: Line 284:
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Trauma'''
| '''Trauma'''
|bgcolor="Beige"| [[Electrical burns ]], [[Head injury]], [[Skull fracture ]]
|bgcolor="Beige"| [[Electrical burns ]], [[head injury]], [[skull fracture ]]
|-
|-
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
Line 220: Line 296:
|-bgcolor="LightSteelBlue"
|-bgcolor="LightSteelBlue"
| '''Miscellaneous'''
| '''Miscellaneous'''
|bgcolor="Beige"| Acquired total [[Lipodystrophy ]], After [[Kidney transplantation]], [[Age]], [[Alcohol withdrawal]], [[Amyloidosis ]], [[Bone cement implantation syndrome ]], [[Brachydactyly with hypertension]], [[Carnevale-Canun-Mendoza syndrome ]], [[Codeine withdrawal ]], [[Collagen disease]], [[Essential hypertension]], [[Gram's syndrome ]], [[Hypothermia]], [[Irradiation]], [[Kashani-Strom-Utley syndrome ]], [[Lymphomatoid Granulomatosis ]], [[MSBD syndrome ]], [[Neuroleptic Malignant Syndrome ]], [[Obesity]], [[Physical inactivity ]], [[Selye syndrome ]], [[Serotonin Syndrome ]], [[Shaken Baby Syndrome ]], [[Stress-Induced Hypertension ]], [[Type A personality]], [[Wagener syndrome ]], [[Pain]], [[Post-exercise]], [[Transfusion of large blood volumes]], [[White coat hypertension]]
|bgcolor="Beige"| Acquired total [[lipodystrophy ]], following [[kidney transplantation]], [[aging]], [[alcohol|alcohol intake]], [[alcohol withdrawal]], [[amyloidosis ]], bone cement implantation syndrome, [[brachydactyly with hypertension]], [[Carnevale-Canun-Mendoza syndrome ]], [[codeine withdrawal ]], [[collagen disease]], [[essential hypertension]], [[fever]], [[Gram's syndrome ]], [[hypothermia]], [[irradiation]], [[Kashani-Strom-Utley syndrome ]], [[lymphomatoid granulomatosis ]], [[MSBD syndrome ]], [[neuroleptic malignant syndrome ]], [[obesity]], [[physical inactivity ]], [[Selye syndrome ]], [[serotonin syndrome ]], [[shaken baby syndrome ]], [[stress-induced hypertension ]], [[type A personality]], [[Wagener syndrome ]], [[pain]], [[post-exercise]], [[transfusion of large blood volumes]], [[white coat hypertension]]
|-
|-
|}
|}


===Causes in Alphabetical Order===
==Causes in Alphabetical Order==
 
{{MultiCol}}
{{MultiCol}}
* [[Abdominal obesity metabolic syndrome ]]
* [[Abdominal obesity metabolic syndrome ]]
Line 241: Line 316:
* [[Adrenal incidentaloma ]]
* [[Adrenal incidentaloma ]]
* After [[Kidney transplantation]]
* After [[Kidney transplantation]]
* [[Age]]
* [[Kidney tumor]]
* [[Aging]]
* [[Albuminuria ]]
* [[Albuminuria ]]
* [[Alcohol]]
* [[Alcohol withdrawal]]
* [[Alcohol withdrawal]]
* [[Alcohol-induced pseudo-Cushing syndrome ]]
* [[Alcohol-induced pseudo-Cushing syndrome ]]
Line 251: Line 328:
* [[Amyloidosis ]]
* [[Amyloidosis ]]
* [[Analgesic nephropathy syndrome ]]
* [[Analgesic nephropathy syndrome ]]
* [[Anemia]]
* [[Aneurysm]]
* [[Aneurysm]]
* [[Anxiety]]
* [[Anxiety]]
Line 256: Line 334:
* [[Aortic regurgitation]]
* [[Aortic regurgitation]]
* [[Aortic stenosis]]
* [[Aortic stenosis]]
* [[Valvular diseases|Aortic valve disease]]
* [[Apparent mineralocorticoid excess ]]
* [[Apparent mineralocorticoid excess ]]
* [[Aristolochic Acid poisoning ]]
* [[Aristolochic Acid poisoning ]]
Line 263: Line 342:
* [[Asphyxia ]]
* [[Asphyxia ]]
* [[Atheroma]]
* [[Atheroma]]
*[[Atropine]]
* Atypical [[Hemolytic uremic syndrome]]
* Atypical [[Hemolytic uremic syndrome]]
* [[Autoimmune Vasculitis ]]
* [[Autoimmune Vasculitis ]]
Line 270: Line 350:
* [[Avasthey syndrome ]]
* [[Avasthey syndrome ]]
* [[Bartter's Syndrome]]
* [[Bartter's Syndrome]]
*[[Betamethasone valerate]]
*[[Betamethasone dipropionate]]
* Bilateral [[Renal artery stenosis ]]
* Bilateral [[Renal artery stenosis ]]
* [[Binswanger's Disease ]]
* [[Binswanger's Disease ]]
Line 278: Line 360:
* [[Bright's Disease ]]
* [[Bright's Disease ]]
* [[Bronchopulmonary dysplasia]]
* [[Bronchopulmonary dysplasia]]
*[[Butorphanol]]
* [[Cadmium poisoning]]
* [[Cadmium poisoning]]
* [[Carcinoid Syndrome]]
* [[Carcinoid Syndrome]]
Line 287: Line 370:
* [[Chronic kidney disease ]]
* [[Chronic kidney disease ]]
* [[Chronic pyelonephritis]]
* [[Chronic pyelonephritis]]
* [[Cocaine]] poisoning
*[[Cidofovir]]
* [[Cocaine]]
* [[Cockayne syndrome ]]
* [[Cockayne syndrome ]]
* [[Codeine withdrawal ]]
* [[Codeine withdrawal ]]
* [[Collagen disease]]
* [[Collagen disease]]
* [[Congenital adrenal hyperplasia]] - 11-Beta-hydroxylase deficiency
* [[Congenital adrenal hyperplasia due to 11-Beta-hydroxylase deficiency]]
* [[Congenital adrenal hyperplasia]] - 17-alpha-hydroxylase deficiency
* [[Congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency]]
* [[Congenital hepatic porphyria ]]
* [[Congenital hepatic porphyria ]]
* Congenital [[Membranous  glomerulonephritis]]
* Congenital [[Membranous  glomerulonephritis]]
Line 304: Line 388:
* [[Cyclosporine]]
* [[Cyclosporine]]
* [[Desipramine]]
* [[Desipramine]]
* [[Dexamethasone]] sensitive hypertension
*[[Desmopressin]]
*[[Desogestrel and Ethinyl Estradiol]]
* [[Dexamethasone sensitive hypertension]]
* [[Diabetes]]
* [[Diabetes]]
* Diffuse [[Systemic sclerosis ]]
* Diffuse [[Systemic sclerosis ]]
* Diffuse [[Mesangial sclerosis]]
* [[Diffuse mesangial sclerosis]]
* [[Dihydroergotamine]]
* [[Dihydroergotamine]]
* [[Disequilibrium syndrome ]]
* [[Disequilibrium syndrome ]]
Line 317: Line 403:
* [[Eclampsia ]]
* [[Eclampsia ]]
* [[Ecstasy]] abuse
* [[Ecstasy]] abuse
* [[Eculizumab]]
{{ColBreak}}
{{ColBreak}}
* [[Eisenmenger's Syndrome ]]
* [[Eisenmenger's Syndrome ]]
* [[Electrical burns ]]
* [[Electrical burns ]]
* [[Endothelin]] producing tumor
* [[Endothelin]] producing tumor
* [[Ephedrine]] poisoning
* [[Ephedrine]]
* [[Ergotamine]]
* [[Ergotamine]]
* [[Essential hypertension]]
* [[Essential hypertension]]
Line 330: Line 417:
* Familial  [[Cushing syndrome ]]
* Familial  [[Cushing syndrome ]]
* [[Faye-Petersen-Ward-Carey syndrome ]]
* [[Faye-Petersen-Ward-Carey syndrome ]]
* [[Fever]]
* [[Fibromuscular dysplasia]] of arteries
* [[Fibromuscular dysplasia]] of arteries
* [[Fitzsimmons-Walson-Mellor syndrome ]]
* [[Fitzsimmons-Walson-Mellor syndrome ]]
Line 352: Line 440:
* [[HELLP syndrome ]]
* [[HELLP syndrome ]]
* Familial [[Hemangiomatosis]] - pulmonary capillary
* Familial [[Hemangiomatosis]] - pulmonary capillary
* Familial [[Osteodysplasia]] - Anderson type  
* [[Familial Osteodysplasia - Anderson type]]
* [[Hemolytic uremic syndrome ]]
* [[Hemolytic uremic syndrome ]]
* [[Hepatorenal tyrosinemia ]]
* [[Hepatorenal tyrosinemia ]]
* [[Hereditary nephritis]] (X-linked)
* [[Hereditary nephritis]] (X-linked)
* [[Hereditary sensory and autonomic neuropathy 3 ]]
* [[Hereditary sensory and autonomic neuropathy 3 ]]
*[[Hydroxocobalamin]]
* [[Hyperadrenalism ]]
* [[Hyperadrenalism ]]
* [[Hypereosinophilic syndrome ]]
* [[Hypereosinophilic syndrome ]]
Line 373: Line 462:
* [[Increased salt intake]]
* [[Increased salt intake]]
* Indian [[Tobacco]] [[Poisoning ]]
* Indian [[Tobacco]] [[Poisoning ]]
*[[Infliximab]]
* [[Irradiation]]
* [[Irradiation]]
* [[Isolated secretion of 18-hydroxy-deoxycorticosterone]]
* [[Isolated secretion of 18-hydroxy-deoxycorticosterone]]
Line 384: Line 474:
* [[Renal Cancer ]]
* [[Renal Cancer ]]
* [[Kimmelstiel-Wilson disease]]
* [[Kimmelstiel-Wilson disease]]
* [[Lead]] poisoning
* [[Lead poisoning]]
* [[Liquorice]]
* [[Liddle's syndrome]]
* [[Liddle's syndrome]]
* [[Lobelia]] poisoning
* [[Lobelia]] poisoning
Line 390: Line 481:
* [[Lupus nephritis ]]
* [[Lupus nephritis ]]
* [[Lymphomatoid granulomatosis ]]
* [[Lymphomatoid granulomatosis ]]
* [[Medroxyprogesterone]]
* [[Meloxicam]]
* [[Meningitis]]
* [[Meningitis]]
* [[Meropenem]]
* [[Metabolic syndrome]]
* [[Metabolic syndrome]]
* [[Methylphenidate]]
* [[Mifepristone]]
* [Milnacipran hydrochloride]]
* [[Mineralocorticoid excess]]
* [[Mineralocorticoid excess]]
* [[Monoamine oxidase inhibitor]]s
* [[MSBD syndrome ]]
* [[MSBD syndrome ]]
* [[Mucopolysaccharidosis]] type I [[Hurler syndrome]]
* [[Mucopolysaccharidosis]] type I [[Hurler syndrome]]
* Multicentric [[Reticulohistiocytosis ]]
* Multicentric [[Reticulohistiocytosis]]
* [[Multiple endocrine neoplasia]] type 1
* [[Multiple endocrine neoplasia type 1]]
* [[Mustard tree poisoning ]]
* [[Mustard tree poisoning ]]
* [[Myxoedema]]
* [[Myxoedema]]
Line 405: Line 503:
* [[Nephrotic syndrome ]]
* [[Nephrotic syndrome ]]
* [[Neuroblastoma ]]
* [[Neuroblastoma ]]
* [[Neurofibromatosis]] syndrome Type II  
* [[Neurofibromatosis syndrome Type II]]
* [[Neurogenic hypertension ]]
* [[Neurogenic hypertension ]]
* [[Neuroleptic malignant Syndrome ]]
* [[Neuroleptic malignant Syndrome ]]
* [[Nicotine addiction ]]
* [[Nicotine addiction ]]
* [[Nipah virus encephalitis ]]
* [[Nipah virus encephalitis ]]
* [[Norgestrel and Ethinyl estradiol]]
* [[Nortriptyline]]
* [[Nortriptyline]]
* [[NSAIDs]]
* [[Obesity]]
* [[Obesity]]
{{ColBreak}}
{{ColBreak}}
Line 417: Line 517:
* [[Oral contraceptive pill]]
* [[Oral contraceptive pill]]
* [[Ovarian dysgenesis]]
* [[Ovarian dysgenesis]]
*[[Oxaprozin]]
* [[Paget's disease of bone ]]
* [[Paget's disease of bone ]]
* [[Pain]]
* [[Pain]]
* [[Pancreatitis]]
* [[Pancreatitis]]
* [[Patent ductus arteriosus]]
* [[Patent ductus arteriosus]]
*[[Pergolide]]
* [[PCOS]]
* [[PCOS]]
* [[Pheochromocytoma]]
* [[Pheochromocytoma]]
Line 428: Line 530:
* [[Pierre Robin's sequence ]]
* [[Pierre Robin's sequence ]]
* [[Pierson syndrome ]]
* [[Pierson syndrome ]]
*[[Pilocarpine]]
* [[Piroxicam]]
* [[Pituitary Cancer ]]
* [[Pituitary Cancer ]]
* [[Poliomyelitis]]
* [[Poliomyelitis]]
Line 436: Line 540:
* [[Post streptococcal glomerulonephritis ]]
* [[Post streptococcal glomerulonephritis ]]
* [[Post-exercise]]
* [[Post-exercise]]
*[[Pralidoxime]]
* [[Pregnancy toxemia /hypertension ]]
* [[Pregnancy toxemia /hypertension ]]
* [[Primary aldosteronism]]
* [[Primary aldosteronism]]
* [[Primary cortisol resistance]]
* [[Primary cortisol resistance]]
* [[Protriptyline]]
* [[Protriptyline]]
* [[Pseudoephedrine]] poisoning
* [[Pseudoephedrine]]
* [[Pseudohyperaldosteronism ]]
* [[Pseudohyperaldosteronism ]]
* [[Pseudohypoaldosteronism ]]
* [[Pseudohypoaldosteronism ]]
Line 450: Line 555:
* [[Pulmonary Lymphangiomatosis]]
* [[Pulmonary Lymphangiomatosis]]
* [[Quadriplegia]]
* [[Quadriplegia]]
*[[Ramucirumab]]
* [[Renal artery thrombosis]]
* [[Renal artery thrombosis]]
* [[Renal artery stenosis]]
* [[Renal emboli]]
* [[Renal emboli]]
* [[Renal segmental hypoplasia-induced Hypertension ]]
* [[Renal segmental hypoplasia-induced Hypertension ]]
Line 471: Line 578:
* [[Silicosis ]]
* [[Silicosis ]]
* [[Simple kidney cysts ]]
* [[Simple kidney cysts ]]
*[[Sipuleucel-T]]
* [[Skull fracture ]]
* [[Skull fracture ]]
* [[Sneddon Syndrome ]]
* [[Sneddon Syndrome ]]
*[[Sorafenib]]
* [[Steroid abuse]]
* [[Steroid abuse]]
* [[Stress-induced hypertension ]]
* [[Stress-induced hypertension ]]
* [[Sumatriptan]]
* [[Sumatriptan]]
* [[Sunitinib]]
* [[Systemic lupus erythematosus]]
* [[Systemic lupus erythematosus]]
* [[Takayasu arteritis ]]
* [[Takayasu arteritis ]]
Line 482: Line 592:
* [[Thromboembolism ]]
* [[Thromboembolism ]]
* [[Thrombotic thrombocytopenic purpura]]
* [[Thrombotic thrombocytopenic purpura]]
*[[Tiagabine]]
* [[Toxic mushrooms -- Psychedelic ]]
* [[Toxic mushrooms -- Psychedelic ]]
* [[Transfusion of large blood volumes]]
* [[Transfusion of large blood volumes]]
Line 492: Line 603:
* [[Urinary tract infections ]]
* [[Urinary tract infections ]]
* [[Urinary tract obstruction]]
* [[Urinary tract obstruction]]
* [[Valganciclovir hydrochloride]]
* [[Vasculitis ]]
* [[Vasculitis ]]
* [[Vater-like syndrome, with pulmonary hypertension, abnormal ears and growth deficiency ]]
* [[Vater-like syndrome, with pulmonary hypertension, abnormal ears and growth deficiency ]]

Latest revision as of 14:01, 17 May 2017

Chronic Hypertension Microchapters

Home

2017 ACC/AHA Hypertension Guidelines

Patient Information

Overview

Definition

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Differentiating Hypertension from other Diseases

Epidemiology and Demographics

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Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

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Physical Examination

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ETT

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Chronic hypertension causes On the Web

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Risk calculators and risk factors for Chronic hypertension causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editor-In-Chief: Yazan Daaboul, Serge Korjian

Overview

Secondary hypertension is only responsible for 5% of cases of chronic hypertension whereas primary hypertension (also known as essential hypertension where no identifiable cause is identified) is responsible for 95% of cases.[1] Common causes of secondary hypertension include obstructive sleep apnea, hyperaldosteronism, kidney diseases, excess catecholamines, coarctation of the arota, cushing syndrome among other diseases.


 
 
Chronic hypertension
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Primary hypertension
(also known as essential hypertension)
(95% of the cases)
 
Secondary hypertension

(5% of the cases)


Primary Hypertension

When a full evaluation yields no clear etiology for the elevated blood pressure, the latter is identified as primary hypertension. Primary or essential hypertension is considered a chronic disease requiring lifelong treatment and follow-up. If an underlying disease is identifiable as the cause, secondary hypertension is diagnosed. Secondary hypertension is a potentially curable condition in most cases.[2] In comparison, the prevalence of primary hypertension is significantly higher than secondary hypertension, where only 5-10% of patients have a secondary etiology[1] Classically, the common age range for the presentation of primary hypertension is 30 to 55 years[3], but age alone should never warrant a diagnosis of primary hypertension without a proper work-up.

Secondary Hypertension

When to Suspect Secondary Hypertension

It is not cost effective to evaluate all hypertensive patients for secondary hypertension. [2] There are certain clinical scenarios, though, that should prompt further evaluation.

Early Onset Hypertension Under Age 30

Primary hypertension generally first occurs between 30 and 55 years. Onset of hypertension before puberty and before age 30 in the absence of risk factors should raise suspicion for secondary hypertension.

Abrupt Onset of Hypertension in A Normotensive Patient

Rapidly Progressive Hypertension or a Hypertensive Emergency or Urgency

Refractory Hypertension

Evaluation of Secondary Hypertension

 
 
 
 
 
Evaluation of secondary hypertension
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Investigation should be limited for patients with clues suggestive of potentially correctable causes.

❑ Presence of clues for renovascular hypertension (most common potentially correctable cause)?[4][5]

❑ Onset of hypertension before the age of 30 years
❑ Onset of severe hypertension (SBP ≥180 mm Hg and/or DBP ≥120 mm Hg) after the age of 55 years
❑ New azotemia or worsening renal function after administration of an ACE inhibitor or ARB agent
❑ Unexplained atrophic kidney or size discrepancy between kidneys of greater than 1.5 cm
❑ Sudden, unexplained pulmonary edema
❑ Accelerated hypertension (sudden and persistent worsening of previously controlled hypertension)
❑ Resistant hypertension (failure to achieve goal blood pressure in patients who are adhering to full doses of an appropriate 3-drug regimen that includes a diuretic)
❑ Malignant hypertension (hypertension with coexistent evidence of acute end-organ damage, i.e., acute renal failure, acutely decompensated congestive heart failure, new visual or neurological disturbance, and/or advanced [grade III to IV] retinopathy)
❑ Unexplained renal failure in the absence of proteinuria or an abnormal urine sediment
❑ Multivessel coronary artery disease
❑ Unexplained congestive heart failure
❑ Refractory angina
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
YES
 
 
 
 
 
NO
 

❑ Perform noninvasive diagnostic studies

❑ Duplex ultrasonography
❑ Gadolinium-enhanced magnetic resonance angiography
❑ Computed tomographic angiography (in individuals with normal renal function)
❑ Consider catheter angiography when noninvasive studies are inconclusive
 
 
 
 
 

Look for findings suggestive of other identifiable causes

❑ Pheochromocytoma

❑ Paroxysmal pounding headache
❑ Palpitations
❑ Profound perspiration
❑ Pallor
❑ Hand tremor

❑ Hyperaldosteronism

❑ Unexplained hypokalemia with urinary potassium wasting

❑ Obstructive sleep apnea

❑ Daytime somnolence
❑ Snoring
❑ Obesity

❑ Hyperparathyroidism

❑ Hypercalcemia

❑ Hypothyroidism

❑ Elevated TSH
❑ Puffy face

❑ Aortic coarctation

❑ Diminished or delayed femoral pulses and low or unobtainable blood pressures in the legs

Common Causes of Secondary Hypertension

Common causes of secondary hypertension are often memorized by the mnemonic ABCDE:

Letter Causes of Secondary Hypertension
A Accuracy, Apnea, Aldosteronism
B Bruit, Bad Kidneys
C Catecholamines, Coarctation, Cushing’s Syndrome
D Drugs, Diet
E Erythropoitin, Endocrine Disorders
Accuracy

An accurate assessment and re-assessment of blood pressures is an essential first step when a patient presents with high blood pressure. The accuracy of home BP measurements should be confirmed by calibrating the patient's measurement technique with that obtained in the doctor's office.

Apnea

Obstructive sleep apnea (OSA) is a respiratory disease characterized by repetitive narrowing or collapse of the upper airway during sleep[6] leading to apnea, hypopnea, and a nocturnal decrease in oxygen tension.[7] Symptoms and signs that might suggest OSA include daytime somnolence, obesity, snoring, and morning headache.[8] Patients with sleep apnea also tend to have drug resistant hypertension and may retain sodium. Diagnosis is made by polysomnography. Treatment relies on maintaining airway patency at night and includes, among others, the use of continuous positive airway pressure (CPAP).

Aldosterone

Primary (hyporeninemic) and secondary (hyperreninemic) hyperaldosteronism result in excess sodium and water retention with slight hypernatremia along with excretion of potassium resulting in hypokalemia in one half of patients.[9] Common symptoms of hyperaldosteronism include drug resistant hypertension, fatigue, headache, intermittent paralysis, muscle weakness, and numbness. The most common cause of primary hyperaldosteronism is an aldosterone-producing adenoma (an "aldosteronoma"), i.e. Conn’s Syndrome. Secondary hyperaldosteronism is due to an overactive RAAS, as seen in renin-secreting tumors, renal artery stenosis, pheochromocytoma, and other syndromes. The diagnosis is made by measuring the ratio of plasma aldosterone to plasma renin activity.[10] It is elevated in primary hyperaldosteronism and decreased/normal with elevated renin in secondary hyperaldosteronism. It should be noted that obesity can also cause aldosterone levels to be elevated. Treatment depends upon the underlying etiology: surgery to resect an adenoma causing primary hyperaldosteronism and spironolactone, an aldosterone antagonist to treat secondary hyperaldosteronism.

Bruit

Renovascular hypertension is due to decreased blood supply to the kidneys secondary to renal artery stenosis and it is the most common correctable cause of secondary hypertension. Atherosclerosis of the renal artery (renal artery stenosis) in older patients above 50 years of age[11] and fibromuscular dysplasia in younger patients are the most common etiologies.

According to the 2013 ACC/AHA Guidelines for the Management of PAD[12], diagnostic work-up for renal artery stenosis is indicated in the following conditions:

Class I Recommendations[12]

  • Hypertension of any stage before the age of 30
  • Stage II hypertension (severe hypertension systolic blood pressure > 180 mm Hg or diastolic blood pressure > 120 mm Hg) in patients older than 55 years. If only mild hypertension is present, then renal artery stenosis is the underlying cause in only 1% of patients [13], but if the blood pressure is markedly elevated, then the risk of renal artery stenosis goes up 10 to 50 fold.
  • Accelerated condition of previously controlled hypertension
  • Resistant hypertension
  • Malignant hypertension
  • New azotemia (50% rise in creatinine that is sustained) within one week after administration of an Angiotensin Converting Enzyme (ACE)inhibitor or ARB
  • Unexplained atrophic kidney or asymmetric kidneys that differ by > 1.5 cm. If the kidney is < 9 cm in size, there is a 75% chance that renal artery stenosis is present.
  • Severe hypertension, impaired renal function, and recurrent flash pulmonary edema

Class IIa Recommendations[12]

  • Unexplained renal failure including patients starting renal replacement therapy

Class IIb Recommendations[12]

Other Indications

  • Severe hypertension in the presence of polyvascular disease (coronary artery disease or peripheral arterial disease)
  • A unilateral systolic-diastolic abdominal bruit. Although a bruit is infrequent in documented renal artery stenosis (the sensitivity is only 40% percent) if it is auscultated, it is associated with a very high specificity of 99%.[14]
  • The association of race with renal artery stenosis is not clear. Reports that it is observed more often in white patients may be due to reporting bias.[15]

Definitive diagnosis is made by magnetic resonance angiography (MRA) and renal arteriography.[16] Other diagnostic methods include duplex ultrasound scanning[17], and captopril-augmented radio-isotopic renogram[18]. Treatment is based upon the underlying etiology.

Bad Kidney (Chronic Renal Failure)

Renal parenchymal disease blunts the kidney’s physiological ability to maintain appropriate blood pressure. Notably, hypertension is both a cause and a consequence of renal parenchymal disease; the two are closely associated and may potentiate each other.[19] The diagnosis is made by demonstration of a decreased GFR. The mechanisms by which renal parenchymal disease leads to the development of hypertension are numerous and include activation of the local RAAS, release of vasoconstrictor cytokines, and inappropriate natriuresis for any given blood pressure.

Catecholamines

Catecholamine excess occurs in several non-disease states, such as acute stress, the administration of medications with sympathomimetic activity, and illicit drug use such as cocaine and these conditions can be ruled out by thorough history taking. Pheochromocytoma, a tumor of the adrenal gland leading to excess secretion of epinephrine, should be considered in young patients with the triad of intermittent hypertensive episodes causing headache, sweating, and tachycardia. However, pheochromocytoma in older adults or a presentation with sustained hypertension is not uncommon. Diagnostic studies to evaluate pheochromocytoma include measurement of plasma free metanephrines and urinary fractionated metanephrines. The diagnostic value of plasma and urinary catecholamines is of limited value given the very short half-life of catecholamines. Treatment is usually by surgical resection of the secreting tumor with appropriate adrenergic blockade.[20]

Coarctation

Coarctation of the aorta is a congenital heart defect, caused by a narrowing in a segment of the ascending or descending aorta. The diagnosis is often made in a neonate or an infant as a result of a weak femoral pulse or asymmetric brisk brachial pulses. Hypertension occurs as a result of a reduction in the effective circulation at the level of the kidneys which respond by increasing plasma volume which in turn causes hypertension in the upper extremities. Diagnosis is by CT angiography, but can also be made in neonates and infants by ultrasound of the heart and the great vessels. Definitive treatment is by surgical correction and or stenting.

Cushing’s Syndrome

Cushing's syndrome is an endocrine disorder caused by prolonged exposure to high endogenous or exogenous cortisol levels. Hypertension in Cushing’s syndrome has been classically attributed to the mineralocorticoid effects of cortisol. It manifests as an absent fall of nocturnal blood pressure physiologically seen in normotensive subjects with associated disturbance in the adrenocorticotropic hormone-glucocorticoid system.[21] Symptoms of Cushing's syndrome include rapid weight gain, particularly of the trunk and face with sparing of the limbs (central obesity), a round face often referred to as a "moon face" along with central obesity, excess sweating, proximal muscle weakness, ecchymoses, insomnia, reduced libido, impotence, amenorrhoea, infertility and psychological disturbances, ranging from euphoria to psychosis. Depression and anxiety.[22] Although an ideal diagnostic test is not considered yet available, clinicians often assess the 24-hour urinary cortisol excretion[23], a low-dose dexamethasone suppression test[24], late evening serum or salivary cortisol[25], and a CRH a following a dexamethasone suppression test to establish the diagnosis.[26]

Drugs

An extensive list of drugs can be associated with hypertension. The most common agents include immunosuppressive agents, non-steroidal anti-inflammatory drugs, oral contraceptive pills, some weight loss agents, stimulants, monoamine oxidase inhibitors, triptans, ergotamines, and sympathomimetics.[1]

Diet

In addition to the association of obesity with hypertension, the 2001 study “Effects on Blood Pressure of Reduced Dietary Sodium and the Dietary Approaches to Stop Hypertension (DASH) Diet” concluded that a high sodium diet above the recommended 100 mmol per day (2.4 g of sodium or 6 g of sodium chloride salt) is associated with hypertension. As a result, reduction of sodium levels below 100 mmol per day and following the DASH diet (rich in vegetables, fruits, with low-fat dairy products) can significantly lower BP.[27] Ingestion of excessive amounts of liquorice can lead to elevation in the blood pressure.

Erythropoietin

Elevated erythropoietin is typically seen in COPD patients who have functional anemia due to chronic hypoxia and in hematologic disorders such as polycythemia. The pathogenesis of erythropoietin-induced hypertension includes increased hematocrit and blood viscosity, altered sensitivity to vasopressors, dysregulated vasodilatory factors, and vascular cell growth causing arterial remodeling and changes in arterial smooth musculature.[28] Diagnosis and treatment are etiology-dependent.

Endocrine

In addition to the more common endocrine causes of hypertension such as hyperaldosteronism, Cushing’s syndrome, and pheochromocytoma, several other endocrine changes can cause hypertension. Both hypothyroidism and hyperthyroidism can cause hypertension by volume retention and by increased cardiac output, respectively. Also, hyperparathyroidism and hypovitaminosis D can cause hypertension due to poorly understood mechanisms, where parathyroidectomy seems to significantly decrease blood pressure in patients with parathyroid disease and elevated BP.[29] Acromegaly can also be a cause of hypertension.

Causes by Organ System

Cardiovascular Aortic regurgitation, aortic dissection, acute severe vascular damage, adams Nance syndrome , aneurysm, aortic coarctation , aortic stenosis, arterial occlusive disease, progressive - -- heart defects -- bone fragility -- brachysyndactyly , arteriosclerosis, atheroma, avasthey syndrome , carotid paraganglioma ,Congenital mitral stenosis , eisenmenger's Syndrome , fibromuscular dysplasia of arteries , grange syndrome , hemangiomatosis (familial pulmonary capillary disease), hypertensive heart disease , pulmonary artery agenesis , vasculitis , patent ductus arteriosus, third degree AV block
Chemical / poisoning Acetaldehyde , aristolochic acid poisoning , arizona Bark Scorpion poisoning , black widow spider envenomation , cadmium poisoning, cocaine, ecstasy abuse , ginseng , heavy metal poisoning, Indian tobacco poisoning, jimsonweed poisoning , lead poisoning , lockwood-Feingold syndrome , mustard tree poisoning , nicotine addiction , pseudoephedrine poisoning , silicosis , toxic mushrooms -- Psychedelic , lobelia poisoning
Dermatologic No underlying causes
Drug Side Effect almotriptan, amitriptyline, Asenapine maleate, Atropine, Beractant, Betamethasone valerate, Benzphetamine, Betamethasone dipropionate, Butorphanol, Cidofovir, cocaine, combined oral contraceptive pill, cyclosporine, caspofungin acetate, desipramine, Desmopressin, Desogestrel and Ethinyl Estradiol, Diethylpropion, dihydroergotamine, diflunisal, Dimercaprol, Dipivefrine, doxepin, Drospirenone and Ethinyl estradiol, Eculizumab, Eletriptan, ephedrine, ergotamine, Erythropoietin, Estropipate, etodolac, febuxostat, Florbetapir F-18, formoterol, frovatriptan, gadoterate, glucocorticoid resistance , gadopentetate, Hydrocortisone, Hydroxocobalamin, Indomethacin, imipramine, interferon alfacon-1, isometheptene, Ketorolac tromethamine, Lanreotide, Leuprolide, Levalbuterol, Medroxyprogesterone, Mefenamic acid, Megestrol, Meloxicam, Meloxicam, Meropenem, Metipranolol, Methylene blue, Methylphenidate, Methylprednisolone, Metoclopramide, Methoxy polyethylene glycol-epoetin beta, Mifepristone, Milnacipran hydrochloride, Mirabegron, monoamine oxidase inhibitors, Nabilone, Naphazoline , nasal decongestants, Naproxen and esomeprazole magnesium, Norethindrone acetate and Ethinyl estradiol, Norgestimate and Ethinyl estradiol, Norgestrel and Ethinyl estradiol, nortriptyline, NSAIDs, Oxaprozin, Oxcarbazepine, Pentamidine Isethionate, Pergolide, phencyclidine, Phendimetrazine, phenylpropanolamine, Pilocarpine, Piroxicam, Pralidozxime, protriptyline, pseudoephedrine, prednisolone, Prednisone, Ramucirumab, Rasagiline, Repaglinide and Metformin hydrochloride, rizatriptan, Rotigotine, sedative dependence, serotonin toxicity, Sertraline, Sipuleucel-T, Sorafenib, steroid abuse, Sulindac, sumatriptan, Sunitinib, Thalidomide, Tiagabine, Tocilizumab, Tolmetin, Travoprost, Triamcinolone, Valganciclovir hydrochloride, zolmitriptan, Zolmitriptan, Zonisamide
Ear Nose Throat Nephrosis -- deafness -- urinary tract -- digital malformation , Fitzsimmons-Walson-Mellor syndrome
Endocrine Carcinoid Syndrome, acromegaly , adrenal incidentaloma , alcohol-induced pseudo-Cushing syndrome , apparent mineralocorticoid excess , congenital adrenal hyperplasia due to 11-Beta-hydroxylase deficiency, congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency, Conn's syndrome, cushing's disease, cushing's syndrome , diabetes, Familial cushing syndrome , graves disease , hyperadrenalism , hyperparathyroidism , hyperpituitarism , hyperthyroidism, hypothyroidism, isolated secretion of corticosterone, isolated secretion of deoxycorticosterone, mineralocorticoid excess, multiple endocrine neoplasia type 1, myxoedema, pheochromocytoma, primary aldosteronism, primary cortisol resistance, pseudohyperaldosteronism , pseudohypoaldosteronism , Schroeder syndrome 1 , hyperthyroidism, hypoglycemia, isolated secretion of 18-hydroxy-deoxycorticosterone, renin-secreting tumors, dexamethasone sensitive hypertension
Environmental No underlying causes
Gastroenterologic Hepatorenal tyrosinemia , pancreatitis, retroperitoneal Fibrosis
Genetic Congenital adrenal hyperplasia due to 11-Beta-hydroxylase deficiency, congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency, cockayne syndrome , down Syndrome , Fabry's Disease , isolated secretion of 18-hydroxy-deoxycorticosterone, Pierre Robin's sequence , Senior-Loken Syndrome, Turner Syndrome , Vater-like syndrome, with pulmonary hypertension, abnormal ears and growth deficiency , Von Hippel-Lindau Disease , Werner syndrome , Williams Syndrome , Gaucher disease type 3 , mucopolysaccharidosis type I Hurler syndrome
Hematologic Anemia, Atypical Hemolytic uremic syndrome, Catastrophic antiphospholipid syndrome , Essential mixed cryoglobulinemia , Faye-Petersen-Ward-Carey syndrome , hemolytic uremic syndrome , hypereosinophilic syndrome , Liddle's syndrome, Multicentric reticulohistiocytosis , polycythemia , thromboembolism , thrombotic thrombocytopenic purpura
Iatrogenic No underlying causes
Infectious Disease Poliomyelitis, meningitis, post streptococcal glomerulonephritis , renal tuberculosis, nipah virus encephalitis
Musculoskeletal / Ortho Acrodynia , Allain Babin Demarquez syndrome , familial osteodysplasia - Anderson type, Paget's disease of bone , Grange syndrome , Faye-Petersen-Ward-Carey syndrome , oculo skeletal renal syndrome , Thieffry and Sorrell Dejerine syndrome
Neurologic Guillain-Barre Syndrome, autonomic dysreflexia syndrome , Binswanger's Disease , Brain stem encephalitis, central sleep apnea , choroideremia -- hypopituitarism , disequilibrium syndrome , dysautonomia , hereditary sensory and autonomic neuropathy 3 , increased intracranial pressure, neurofibromatosis syndrome Type II , neurogenic hypertension , nipah virus encephalitis , obstructive sleep apnea , Sneddon Syndrome , upper spinal cord lesions, Wolfram's disease, meningitis, polyradiculitis, quadriplegia, Adams Nance syndrome , glycine encephalopathy - classical neonatal form, pituitary Cancer , Fitzsimmons-Walson-Mellor syndrome
Nutritional / Metabolic Abdominal obesity metabolic syndrome , acute intermittent porphyria , congenital hepatic porphyria , Gaucher disease type 3, glycine encephalopathy - classical neonatal form, glycine synthase deficiency , gouty nephropathy, liquorice, metabolic syndrome, tyrosinemia , Von Gierke disease IB, increased salt intake, mucopolysaccharidosis type I Hurler syndrome, Fabry's Disease , vitamin D -- adverse effects
Obstetric/Gynecologic Eclampsia , Fowler-Christmas-Chapple syndrome , gestational hypertension, HELLP syndrome , ovarian dysgenesis, PCOS, pregnancy toxemia /hypertension , twin-twin transfusion syndrome
Oncologic Endothelin producing tumor, adrenal Cancer , familial adrenal adenoma , renal Cancer , neuroblastoma

pituitary Cancer , renin-secreting tumors, rhabdoid tumor , Wilms' tumor , adrenal incidentaloma , familial renal cell carcinoma

Opthalmologic Isolated Ectopia lentis, oculo skeletal renal syndrome
Overdose / Toxicity Amphetamine abuse, almotriptan, dihydroergotamine, ergotamine, frovatriptan, isometheptene, rizatriptan, sumatriptan, zolmitriptan, amitriptyline, cyclosporine, desipramine, dexamethasone sensitive hypertension, doxepin, ephedrine, glucocorticoid resistance , imipramine, nasal decongestants, nortriptyline, combined oral contraceptive pill, phencyclidine, phenylpropanolamine, protriptyline, serotonin toxicity, steroid abuse, pseudoephedrine, cocaine
Psychiatric Anxiety
Pulmonary Asphyxia , bronchopulmonary dysplasia, COPD , Goodpasture syndrome , pulmonary cystic lymphangiectasis , pulmonary embolism , pulmonary fibrosis /granuloma , pulmonary veno-occlusive disease , pulmonary lymphangiomatosis, respiratory acidosis , respiratory failure , unilateral pulmonary agenesis , hyperventilation, obstructive sleep apnea , Wegener's granulomatosis
Renal / Electrolyte Bartter's Syndrome, dissection of the renal arteries, acid-base imbalance , acute renal failure , albuminuria , analgesic nephropathy syndrome , autosomal dominant polycystic kidney disease , autosomal recessive polycystic kidney disease , bilateral renal artery stenosis , Bright's Disease , chronic kidney disease , chronic pyelonephritis, congenital membranous glomerulonephritis, congenital stenosis of renal artery, congenital hydronephrosis, diffuse mesangial sclerosis, familial renal cell carcinoma , Fitzsimmons-Walson-Mellor syndrome , glomerulonephritis , hereditary nephritis (X-linked), hypoplastic kidney, IgA nephropathy , kidney arteriovenous fistula , Kimmelstiel-Wilson disease, lupus nephritis , nephrocalcinosis , nephrosclerosis , nephrosis -- deafness -- urinary tract -- digital malformation , nephrotic syndrome , oculo skeletal renal syndrome , Pierson syndrome , Severe infantile polycystic kidneys with tuberous sclerosis , post streptococcal glomerulonephritis , renal artery thrombosis, renal artery stenosis, renal emboli, renal segmental hypoplasia-induced Hypertension , renal tuberculosis, Salcedo syndrome , simple kidney cysts , Thieffry and Sorrell Dejerine syndrome , urinary tract infections , urinary tract obstruction, vesicoureteral reflux , Wegener's granulomatosis , Gitelman's Syndrome, hepatorenal tyrosinemia , Atypical hemolytic uremic syndrome, gouty nephropathy, Goodpasture syndrome
Rheum / Immune / Allergy Autoimmune Vasculitis , systemic lupus erythematosus, diffuse systemic sclerosis , polyarteritis nodosa , Takayasu arteritis
Sexual No underlying causes
Trauma Electrical burns , head injury, skull fracture
Urologic No underlying causes
Dental No underlying causes
Miscellaneous Acquired total lipodystrophy , following kidney transplantation, aging, alcohol intake, alcohol withdrawal, amyloidosis , bone cement implantation syndrome, brachydactyly with hypertension, Carnevale-Canun-Mendoza syndrome , codeine withdrawal , collagen disease, essential hypertension, fever, Gram's syndrome , hypothermia, irradiation, Kashani-Strom-Utley syndrome , lymphomatoid granulomatosis , MSBD syndrome , neuroleptic malignant syndrome , obesity, physical inactivity , Selye syndrome , serotonin syndrome , shaken baby syndrome , stress-induced hypertension , type A personality, Wagener syndrome , pain, post-exercise, transfusion of large blood volumes, white coat hypertension

Causes in Alphabetical Order


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