Secondary hypertension: Difference between revisions

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__NOTOC__
#Redirect [[Essential hypertension causes#Secondary Hypertension]]
{{DiseaseDisorder infobox |
  Name        = Secondary hypertension |
  ICD10      = {{ICD10|I|15||i|10}} |
  ICD9        = {{ICD9|405}} |
}}
{{SI}}
{{CMG}}
 
==Overview==
While most forms of [[hypertension]] are not known a underlying cause (and are thus known as "essential hypertension" or "primary hypertension"), in about 10% of the cases, there is a known cause, and thus the hypertension is '''secondary hypertension''' (or, less commonly, '''inessential hypertension''').
 
==Classification==
===Renovascular hypertension (I15.0)===
* ''See main article at [[Renovascular hypertension]].''
 
===Hypertension secondary to other renal disorders (I15.1)===
*[[Chronic renal failure]]
* [[Kidney disease]] / [[renal artery stenosis]]: the normal physiological response to low blood pressure in the renal arteries is to increase cardiac output (CO) to maintain the pressure needed for [[glomerulus (kidney)|glomerular filtration]]. Here, however, increased CO cannot solve the structural problems causing renal artery hypotension, with the result that CO remains chronically elevated.
 
===Hypertension secondary to endocrine disorders (I15.2)===
*[[Pheochromocytoma]]
*[[Hyperaldosteronism]] ([[Conn's syndrome]])
*[[Cushing's disease]]
*[[Hyperparathyroidism]]
*[[Acromegaly]]
*[[Hyperthyroidism]]
*[[Hypothyroidism]]
 
===Other secondary hypertension (I15.8)===
*[[Obstructive sleep apnea]]
*[[Liquorice]] (when consumed in excessive amounts)
*[[Scleroderma]]
*[[Neurofibromatosis]]
* [[Pregnancy]]: unclear etiology.
* [[Cancers]]: tumours in the kidney can operate in the same way as kidney disease. More commonly, however, tumors cause inessential hypertension by ectopic secretion of hormones involved in normal physiological control of blood pressure.
* [[Medication|Drugs]]: In particular, [[alcohol]], nasal decongestants with adrenergic effects, [[Non-steroidal anti-inflammatory drug|NSAID]]s, [[Monoamine oxidase inhibitor|MAOI]]s, [[Adrenergic receptor|adrenoceptor]] stimulants, and combined methods of [[hormonal contraception]] (those containing ethinyl-estradiol) can cause hypertension while in use.
**Heavy [[alcoholic beverage|alcohol]] use
**[[Steroid]] use
* Malformed [[aorta]], [[slow pulse]]: these cause reduced blood flow to the renal arteries, with physiological responses as already outlined.
** [[Aortic valve disease]]: unclear etiology.
**[[Coarcation of the aorta]]
* [[Anemia]]: unclear etiology.
* [[Fever]]: unclear etiology.
 
==References==
{{Reflist|2}}
 
{{Circulatory system pathology}}
 
[[Category:Kidney diseases]]
[[Category:Nephrology]]
[[es:Hipertensión secundaria]]
 
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Revision as of 15:44, 1 April 2014