COVID-19-associated acute kidney injury: Difference between revisions

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* However, recent study found 75.4% of hospitalized patients with COVID-19 pneumonia developed [[hematuria]], [[proteinuria]], and [[AKI]]. But, these findings are not significantly different from other critical diseases.<ref name="PeiZhang2020">{{cite journal|last1=Pei|first1=Guangchang|last2=Zhang|first2=Zhiguo|last3=Peng|first3=Jing|last4=Liu|first4=Liu|last5=Zhang|first5=Chunxiu|last6=Yu|first6=Chong|last7=Ma|first7=Zufu|last8=Huang|first8=Yi|last9=Liu|first9=Wei|last10=Yao|first10=Ying|last11=Zeng|first11=Rui|last12=Xu|first12=Gang|title=Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia|journal=Journal of the American Society of Nephrology|volume=31|issue=6|year=2020|pages=1157–1165|issn=1046-6673|doi=10.1681/ASN.2020030276}}</ref>
* However, recent study found 75.4% of hospitalized patients with COVID-19 pneumonia developed [[hematuria]], [[proteinuria]], and [[AKI]]. But, these findings are not significantly different from other critical diseases.<ref name="PeiZhang2020">{{cite journal|last1=Pei|first1=Guangchang|last2=Zhang|first2=Zhiguo|last3=Peng|first3=Jing|last4=Liu|first4=Liu|last5=Zhang|first5=Chunxiu|last6=Yu|first6=Chong|last7=Ma|first7=Zufu|last8=Huang|first8=Yi|last9=Liu|first9=Wei|last10=Yao|first10=Ying|last11=Zeng|first11=Rui|last12=Xu|first12=Gang|title=Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia|journal=Journal of the American Society of Nephrology|volume=31|issue=6|year=2020|pages=1157–1165|issn=1046-6673|doi=10.1681/ASN.2020030276}}</ref>
==Pathophysiology==
==Pathophysiology==
* Angiotensin-converting enzyme 2 ([[ACE2]]), which is a primary receptor for [[SARS-CoV-2]] entry into cells, mostly presents in renal tubular epithelial cells as well as lungs and heart.<ref name="MalhaMueller2020">{{cite journal|last1=Malha|first1=Line|last2=Mueller|first2=Franco B.|last3=Pecker|first3=Mark S.|last4=Mann|first4=Samuel J.|last5=August|first5=Phyllis|last6=Feig|first6=Peter U.|title=COVID-19 and the Renin-Angiotensin System|journal=Kidney International Reports|volume=5|issue=5|year=2020|pages=563–565|issn=24680249|doi=10.1016/j.ekir.2020.03.024}}</ref>
* Angiotensin-converting enzyme 2 ([[ACE2]]), which is a primary receptor for [[SARS-CoV-2]] entry into cells, mostly presents in renal tubular epithelial cells as well as lungs and heart.<ref name="MalhaMueller2020">{{cite journal|last1=Malha|first1=Line|last2=Mueller|first2=Franco B.|last3=Pecker|first3=Mark S.|last4=Mann|first4=Samuel J.|last5=August|first5=Phyllis|last6=Feig|first6=Peter U.|title=COVID-19 and the Renin-Angiotensin System|journal=Kidney International Reports|volume=5|issue=5|year=2020|pages=563–565|issn=24680249|doi=10.1016/j.ekir.2020.03.024}}</ref>
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* The incidence of [[AKI]] in critcally ill patients with [[COVID-19]] is estimated between 27-85%. {{cite web |url=https://www.esicm.org/blog/?p=2789 |title=Acute Kidney Injury in COVID-19 Patients &#124; COVID-19 |format= |work= |accessdate=}}
* The incidence of [[AKI]] in critcally ill patients with [[COVID-19]] is estimated between 27-85%. {{cite web |url=https://www.esicm.org/blog/?p=2789 |title=Acute Kidney Injury in COVID-19 Patients &#124; COVID-19 |format= |work= |accessdate=}}
== Risk Factors ==
== Screening ==


== Natural History, Complications, and Prognosis==
== Natural History, Complications, and Prognosis==
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**Fluid retention, leading [[edema]] and swelling of face and extremities
**Fluid retention, leading [[edema]] and swelling of face and extremities
**Electrolyte imbalance; High level of [[Potassium]] which leads to [[cardiac arrhythmia]]
**Electrolyte imbalance; High level of [[Potassium]] which leads to [[cardiac arrhythmia]]
===Family History===
=== Physical Examination ===
==== Appearance of the Patient ====
====Vital Signs====
====Skin====
====Head====
==== Eyes ====
==== Ear ====
====Nose====
====Throat ====
==== Heart ====
==== Lungs ====
==== Abdomen ====
==== Extremities ====
==== Neurologic ====
==== Other ====


=== Laboratory Findings ===  
=== Laboratory Findings ===  
 
* Laboratory findings of COVID-19-associated acute kidney injury include:
==== Biomarker Studies ====
**Elevated [[BUN]] level
 
***Plasma BUN-creatinine ratio> 20 in prerenal [[AKI]]
====CT ====
***Plasma BUN-creatinine ratio< 15 in renal [[AKI]] or [[Acute Tubular Necrosis]]
 
**Based on KDIGO definition for the diagnosis of [[AKI]]<ref name="pmid22890468">{{cite journal| author=Khwaja A| title=KDIGO clinical practice guidelines for acute kidney injury. | journal=Nephron Clin Pract | year= 2012 | volume= 120 | issue= 4 | pages= c179-84 | pmid=22890468 | doi=10.1159/000339789 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22890468  }} </ref>:
==== MRI ====
***Elevated serum Creatinine by ≥0.3 mg/dl (≥26.5 μmol/l) within 48 hours; or
 
***Elevated serum Creatinine to ≥1.5 times baseline within the previous 7 days; or
==== Ultrasound ====
***Urine volume < 0.5 ml/kg/h for >6 hours
**Fractional excretion of sodium ([[FENa]])
***([[FENa]])< 1% in prerenal [[AKI]]
***([[FENa]])> 2% in renal [[AKI]] or [[Acute Tubular Necrosis]]
**Urinary sediment
***Hyaline casts in prerenal [[AKI]]
***Granular or Muddy brown casts in renal [[AKI]] or [[Acute Tubular Necrosis]]
====ECG====
* There are no specific [[ECG]] findings associated with AKI. However, [[electrolyte]] disturbances such as [[hyperkalemia]] might lead to various [[ECG]] abnormalities.


== Treatment ==
== Treatment ==

Revision as of 17:10, 25 June 2020

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sogand Goudarzi, MD [2], Nasrin Nikravangolsefid, MD-MPH [3]

Synonyms and keywords: COVID-19-associated AKI

Overview

COVID-19 can involve many organs leading to organ failure, one of which is kidneys that manifest with mild proteinuria to advanced acute kidney injury (AKI).

Historical Perspective

  • Early reports from China revealed that COVID-19 rarely involves the kidneys, as acute renal failure was not seen among COVID-19 hospitalized patients and mild BUN or creatinine rise [10.8%] and mild proteinuria [7.2%] occurred. [1]
  • However, recent study found 75.4% of hospitalized patients with COVID-19 pneumonia developed hematuria, proteinuria, and AKI. But, these findings are not significantly different from other critical diseases.[2]

Pathophysiology

  • Angiotensin-converting enzyme 2 (ACE2), which is a primary receptor for SARS-CoV-2 entry into cells, mostly presents in renal tubular epithelial cells as well as lungs and heart.[3]
  • Despite kidney injury following COVID-19 infection is less frequent than severe lung injury, ACE2: ACE ratio is higher in the kidneys compared to the respiratory system. (1:1 in the kidneys VS 1:20 in the respiratory system)[3]
  • After SARS-CoV-2 enters through the nasal cavity, it may travel to the kidneys and enters the bloodstream leading to severe inflammatory response activation and cytokine storm.
  • It is thought that AKI following COVID-19 is the result of: [3]

Epidemiology and Demographics

  • AKI is frequently seen among patients with COVID-19 hospitalized in ICU, with prevalence of 0.6-29% in China "Acute Kidney Injury in COVID-19 Patients | COVID-19". and 22.2% in the USA.[4]

Natural History, Complications, and Prognosis

Natural History

  • Approximately half of the new AKI cases following COVID-19 is mild with good short-term prognosis.
  • If no improvement occurs during follow-up, it is contributed to higher mortality.[2]

Diagnosis

Symptoms

  • Patients in the early stages of kidney failure may be asymptomatic. If left untreated, patients may progress to develop Azotemia and Uremia, which occur due to the buildup of waste materials in the blood.

Laboratory Findings

  • Laboratory findings of COVID-19-associated acute kidney injury include:
    • Elevated BUN level
    • Based on KDIGO definition for the diagnosis of AKI[7]:
      • Elevated serum Creatinine by ≥0.3 mg/dl (≥26.5 μmol/l) within 48 hours; or
      • Elevated serum Creatinine to ≥1.5 times baseline within the previous 7 days; or
      • Urine volume < 0.5 ml/kg/h for >6 hours
    • Fractional excretion of sodium (FENa)
    • Urinary sediment

ECG

  • There are no specific ECG findings associated with AKI. However, electrolyte disturbances such as hyperkalemia might lead to various ECG abnormalities.

Treatment

Pharmacotherapy

Acute Pharmacotherapies

Chronic Pharmacotherapies

Surgery and Device Based Therapy

Indications for Surgery

Pre-Operative Assessment

Post-Operative Management

Primary Prevention

Genetic Counseling

References

  1. Wang, Luwen; Li, Xun; Chen, Hui; Yan, Shaonan; Li, Dong; Li, Yan; Gong, Zuojiong (2020). "Coronavirus Disease 19 Infection Does Not Result in Acute Kidney Injury: An Analysis of 116 Hospitalized Patients from Wuhan, China". American Journal of Nephrology. 51 (5): 343–348. doi:10.1159/000507471. ISSN 0250-8095.
  2. 2.0 2.1 2.2 Pei, Guangchang; Zhang, Zhiguo; Peng, Jing; Liu, Liu; Zhang, Chunxiu; Yu, Chong; Ma, Zufu; Huang, Yi; Liu, Wei; Yao, Ying; Zeng, Rui; Xu, Gang (2020). "Renal Involvement and Early Prognosis in Patients with COVID-19 Pneumonia". Journal of the American Society of Nephrology. 31 (6): 1157–1165. doi:10.1681/ASN.2020030276. ISSN 1046-6673.
  3. 3.0 3.1 3.2 Malha, Line; Mueller, Franco B.; Pecker, Mark S.; Mann, Samuel J.; August, Phyllis; Feig, Peter U. (2020). "COVID-19 and the Renin-Angiotensin System". Kidney International Reports. 5 (5): 563–565. doi:10.1016/j.ekir.2020.03.024. ISSN 2468-0249.
  4. Richardson S, Hirsch JS, Narasimhan M, Crawford JM, McGinn T, Davidson KW; et al. (2020). "Presenting Characteristics, Comorbidities, and Outcomes Among 5700 Patients Hospitalized With COVID-19 in the New York City Area". JAMA. doi:10.1001/jama.2020.6775. PMC 7177629 Check |pmc= value (help). PMID 32320003 Check |pmid= value (help).
  5. Ronco C, Reis T, Husain-Syed F (2020). "Management of acute kidney injury in patients with COVID-19". Lancet Respir Med. doi:10.1016/S2213-2600(20)30229-0. PMC 7255232 Check |pmc= value (help). PMID 32416769 Check |pmid= value (help).
  6. Skorecki K, Green J, Brenner BM (2005). "Chronic renal failure". In Kasper DL, Braunwald E, Fauci AS, et al. Harrison's Principles of Internal Medicine (16th ed.). New York, NY: McGraw-Hill. pp. 1653–63. ISBN 978-0-07-139140-5.
  7. Khwaja A (2012). "KDIGO clinical practice guidelines for acute kidney injury". Nephron Clin Pract. 120 (4): c179–84. doi:10.1159/000339789. PMID 22890468.


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