COVID-19-associated hepatic injury: Difference between revisions

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== Diagnosis ==
== Diagnosis ==
===Diagnostic Study of Choice===
===Diagnostic Study of Choice===
*The [[diagnosis]] of [[COVID-19]]-associated hepatic injury is based on the abnormal [[Liver function tests|liver biochemical]] and function tests. The key lies in suspecting liver damage in a [[COVID-19|SARS-CoV2]] patient and testing [[Liver function tests|liver biochemical]] and function tests such as [[LDH]], [[albumin]], [[ALT]], [[AST]], [[Bilirubin#Bilirubin blood tests|total bilirubin]], and [[INR]]. A [[COVID-19]] patient with [[acute liver failure]] should be investigated and effort has to be made to find the cause liver injury. Abnormal [[Liver function tests|liver biochemistries]] are uncommon in children.<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref>
*The diagnosis of [[COVID-19]]-associated hepatic injury is based on the abnormal [[Liver function tests|liver biochemical]] and function tests. The key lies in suspecting liver damage in a [[COVID-19|SARS-CoV2]] patient and testing [[Liver function tests|liver biochemical]] and function tests such as [[LDH]], [[albumin]], [[ALT]], [[AST]], [[Bilirubin#Bilirubin blood tests|total bilirubin]], and [[INR]]. A [[COVID-19]] patient with [[acute liver failure]] should be investigated and effort has to be made to find the cause liver injury.


===History and Symptoms===
===History and Symptoms===
*The majority of patients with [[Liver function test|abnormal liver function]] have a [[fever]], which may be related to the [[immune response]] after viral infection.<ref name="HuangWang2020">{{cite journal|last1=Huang|first1=Chaolin|last2=Wang|first2=Yeming|last3=Li|first3=Xingwang|last4=Ren|first4=Lili|last5=Zhao|first5=Jianping|last6=Hu|first6=Yi|last7=Zhang|first7=Li|last8=Fan|first8=Guohui|last9=Xu|first9=Jiuyang|last10=Gu|first10=Xiaoying|last11=Cheng|first11=Zhenshun|last12=Yu|first12=Ting|last13=Xia|first13=Jiaan|last14=Wei|first14=Yuan|last15=Wu|first15=Wenjuan|last16=Xie|first16=Xuelei|last17=Yin|first17=Wen|last18=Li|first18=Hui|last19=Liu|first19=Min|last20=Xiao|first20=Yan|last21=Gao|first21=Hong|last22=Guo|first22=Li|last23=Xie|first23=Jungang|last24=Wang|first24=Guangfa|last25=Jiang|first25=Rongmeng|last26=Gao|first26=Zhancheng|last27=Jin|first27=Qi|last28=Wang|first28=Jianwei|last29=Cao|first29=Bin|title=Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China|journal=The Lancet|volume=395|issue=10223|year=2020|pages=497–506|issn=01406736|doi=10.1016/S0140-6736(20)30183-5}}</ref><ref name="WangHu2020">{{cite journal|last1=Wang|first1=Dawei|last2=Hu|first2=Bo|last3=Hu|first3=Chang|last4=Zhu|first4=Fangfang|last5=Liu|first5=Xing|last6=Zhang|first6=Jing|last7=Wang|first7=Binbin|last8=Xiang|first8=Hui|last9=Cheng|first9=Zhenshun|last10=Xiong|first10=Yong|last11=Zhao|first11=Yan|last12=Li|first12=Yirong|last13=Wang|first13=Xinghuan|last14=Peng|first14=Zhiyong|title=Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China|journal=JAMA|volume=323|issue=11|year=2020|pages=1061|issn=0098-7484|doi=10.1001/jama.2020.1585}}</ref>
*The majority of patients (14.5%) with [[COVID-19]] associated hepatic injury have a [[fever]], which may be related to the [[immune response]] after viral infection.<ref name="HuangWang2020">{{cite journal|last1=Huang|first1=Chaolin|last2=Wang|first2=Yeming|last3=Li|first3=Xingwang|last4=Ren|first4=Lili|last5=Zhao|first5=Jianping|last6=Hu|first6=Yi|last7=Zhang|first7=Li|last8=Fan|first8=Guohui|last9=Xu|first9=Jiuyang|last10=Gu|first10=Xiaoying|last11=Cheng|first11=Zhenshun|last12=Yu|first12=Ting|last13=Xia|first13=Jiaan|last14=Wei|first14=Yuan|last15=Wu|first15=Wenjuan|last16=Xie|first16=Xuelei|last17=Yin|first17=Wen|last18=Li|first18=Hui|last19=Liu|first19=Min|last20=Xiao|first20=Yan|last21=Gao|first21=Hong|last22=Guo|first22=Li|last23=Xie|first23=Jungang|last24=Wang|first24=Guangfa|last25=Jiang|first25=Rongmeng|last26=Gao|first26=Zhancheng|last27=Jin|first27=Qi|last28=Wang|first28=Jianwei|last29=Cao|first29=Bin|title=Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China|journal=The Lancet|volume=395|issue=10223|year=2020|pages=497–506|issn=01406736|doi=10.1016/S0140-6736(20)30183-5}}</ref><ref name="WangHu2020">{{cite journal|last1=Wang|first1=Dawei|last2=Hu|first2=Bo|last3=Hu|first3=Chang|last4=Zhu|first4=Fangfang|last5=Liu|first5=Xing|last6=Zhang|first6=Jing|last7=Wang|first7=Binbin|last8=Xiang|first8=Hui|last9=Cheng|first9=Zhenshun|last10=Xiong|first10=Yong|last11=Zhao|first11=Yan|last12=Li|first12=Yirong|last13=Wang|first13=Xinghuan|last14=Peng|first14=Zhiyong|title=Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China|journal=JAMA|volume=323|issue=11|year=2020|pages=1061|issn=0098-7484|doi=10.1001/jama.2020.1585}}</ref><ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
*Other [[COVID-19]] associated symptoms reported in patients with [[COVID-19]] include:<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref>
*Other [[COVID-19]] associated symptoms reported in patients with [[COVID-19]] include:<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref><ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
**[[Cough]]
**[[Cough]] (dry or productive)
**Sorethroat
**[[COVID-19-associated diarrhea|Diarrhea]]
**[[Diarrhea]]
**[[COVID-19-associated nausea and vomiting|Nausea and vomiting]]
**[[Abdominal pain]]
**[[Pharyngitis]]
**[[COVID-19-associated anosmia|Anosmia]]
**[[COVID-19-associated abdominal pain|Abdominal pain]]
*[[Ageusia]]
**[[COVID-19-associated anosmia|Anosmia]] (partial or complete loss of smell)
* To browse the symptoms of COVID-19, [[COVID-19 natural history, complications and prognosis|Click here]].
**[[COVID-19-associated anorexia|Anorexia]] (Loss of appetite)
**[[Ageusia]] (Loss of smell)
**[[Fatigue]]
*The patient history and symptom associated with [[COVID-19]] can be viewed by [[COVID-19 physical examination|clicking here]].


===Physical Examination===
===Physical Examination===
* The presence of [[hepatomegaly]] in patients with COVID-19-associated hepatic injury may be aforethought of [[organomegaly]].<ref name="LiFan2020">{{cite journal|last1=Li|first1=Jie|last2=Fan|first2=Jian-Gao|title=Characteristics and Mechanism of Liver Injury in 2019 Coronavirus Disease|journal=Journal of Clinical and Translational Hepatology|volume=8|issue=1|year=2020|pages=1–5|issn=2225-0719|doi=10.14218/JCTH.2020.00019}}</ref>
*The most common physical examination finding of patients with [[COVID-19]] associated hepatic injury includes [[fever]] (normal temperature is not uncommon).<ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
* To browse the physical exam findings associated with [[COVID-19]], [[COVID-19 physical examination|Click here]].
*The presence of [[hepatomegaly]] on deep [[palpation]] in patients with COVID-19-associated hepatic injury is a forethought of [[organomegaly]].<ref name="LiFan2020">{{cite journal|last1=Li|first1=Jie|last2=Fan|first2=Jian-Gao|title=Characteristics and Mechanism of Liver Injury in 2019 Coronavirus Disease|journal=Journal of Clinical and Translational Hepatology|volume=8|issue=1|year=2020|pages=1–5|issn=2225-0719|doi=10.14218/JCTH.2020.00019}}</ref>
* The physical exam findings associated with [[COVID-19]] can be viewed by [[COVID-19 history and symptoms|clicking here]].


===Laboratory Findings===
===Laboratory Findings===
*Laboratory findings consistent with the diagnosis of [[COVID-19]]-associated hepatic injury include abnormal [[Liver function tests]] specially raised [[AST]].
*Laboratory findings consistent with the diagnosis of [[COVID-19]]-associated hepatic injury include abnormal [[Liver function tests]] specially raised [[AST]].<ref name="AlqahtaniSchattenberg2020">{{cite journal|last1=Alqahtani|first1=Saleh A|last2=Schattenberg|first2=Jörn M|title=Liver injury in COVID-19:  The current evidence|journal=United European Gastroenterology Journal|volume=8|issue=5|year=2020|pages=509–519|issn=2050-6406|doi=10.1177/2050640620924157}}</ref>
*Research has shown elevated [[ALT]] and [[AST]] levels in the blood of patients with liver injury on admission. AST elevation is more common than ALT, which reflects a possible source outside of liver.<ref name="pmid32298767">{{cite journal |vauthors=Cai Q, Huang D, Yu H, Zhu Z, Xia Z, Su Y, Li Z, Zhou G, Gou J, Qu J, Sun Y, Liu Y, He Q, Chen J, Liu L, Xu L |title=COVID-19: Abnormal liver function tests |journal=J. Hepatol. |volume= |issue= |pages= |date=April 2020 |pmid=32298767 |pmc=7194951 |doi=10.1016/j.jhep.2020.04.006 |url=}}</ref>
*''[[ALT]] and [[AST]]'': The level of both enzymes is elevated in the blood of patients (reported in one-third of patients in a few studies) with liver injury on admission. [[AST]] elevation is more common than [[ALT]], reflecting a possible source outside of liver. [[ICU]] patients have higher levels of [[ALT]] and [[AST]] and reduced levels of [[serum albumin]] indicating severe liver damage affecting the liver's synthetic ability.<ref name="pmid32298767">{{cite journal |vauthors=Cai Q, Huang D, Yu H, Zhu Z, Xia Z, Su Y, Li Z, Zhou G, Gou J, Qu J, Sun Y, Liu Y, He Q, Chen J, Liu L, Xu L |title=COVID-19: Abnormal liver function tests |journal=J. Hepatol. |volume= |issue= |pages= |date=April 2020 |pmid=32298767 |pmc=7194951 |doi=10.1016/j.jhep.2020.04.006 |url=}}</ref><ref name="AlqahtaniSchattenberg2020">{{cite journal|last1=Alqahtani|first1=Saleh A|last2=Schattenberg|first2=Jörn M|title=Liver injury in COVID-19:  The current evidence|journal=United European Gastroenterology Journal|volume=8|issue=5|year=2020|pages=509–519|issn=2050-6406|doi=10.1177/2050640620924157}}</ref>
*Serum [[albumin]] levels were found to get lower during the course of hospitalization. The tests is a measure of synthetic function of the liver.
*''[[LDH]]'': Following [[AST]] and [[ALT]], [[LDH]]] rise has the highest [[incidence]]. Some studies suggest that LDH can be used as an early alarm to prompt further analysis for [[COVID-19]] but the data is insufficient to be conclusive.<ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
*[[ICU]] patients had higher levels of [[ALT]] and [[AST]] and a more reduced level of serum albumin indicating severe liver damage affecting its synthetic ability.
*''[[Alkaline phosphatase]] (ALP)'': The levels are raised.<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref>
*Total [[bilirubin]] and direct [[bilirubin]]: The data from limited studies show a higher incidence of [[hyperbilirubinemia]] in patients who required aggressive management during the course of their disease or died.<ref name="TianYe2020">{{cite journal|last1=Tian|first1=Dandan|last2=Ye|first2=Qing|title=Hepatic complications of COVID‐19 and its treatment|journal=Journal of Medical Virology|year=2020|issn=0146-6615|doi=10.1002/jmv.26036}}</ref>
*''[[Serum albumin]]'': The levels are found to decrease during the course of hospitalization. The tests are a measure of the synthetic function of the liver.
*[[LDH]] levels- a study reported the incidence of [[LDH]] levels to be highest followed by [[AST]] and [[ALT]] and suggested that [[LDH]] can be used as an early alarm tp prompt further analysis for [[COVID-19]].<ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
*''Total [[bilirubin]] and [[direct bilirubin]]'': The data from limited studies show a higher incidence of [[hyperbilirubinemia]] in patients who required aggressive management during the course of their disease or died.<ref name="TianYe2020">{{cite journal|last1=Tian|first1=Dandan|last2=Ye|first2=Qing|title=Hepatic complications of COVID‐19 and its treatment|journal=Journal of Medical Virology|year=2020|issn=0146-6615|doi=10.1002/jmv.26036}}</ref>
* Glycoprotein [[gamma-glutamyltransferase]] (GGT) may point towards [[hepatobiliary]] involvement.
*[[C-reactive protein]] (CRP), [[ESR]] and specially [[procalcitonin]] levels are found to be higher in patients and can give a fair idea of [[infection]].<ref name="HuangWang2020">{{cite journal|last1=Huang|first1=Chaolin|last2=Wang|first2=Yeming|last3=Li|first3=Xingwang|last4=Ren|first4=Lili|last5=Zhao|first5=Jianping|last6=Hu|first6=Yi|last7=Zhang|first7=Li|last8=Fan|first8=Guohui|last9=Xu|first9=Jiuyang|last10=Gu|first10=Xiaoying|last11=Cheng|first11=Zhenshun|last12=Yu|first12=Ting|last13=Xia|first13=Jiaan|last14=Wei|first14=Yuan|last15=Wu|first15=Wenjuan|last16=Xie|first16=Xuelei|last17=Yin|first17=Wen|last18=Li|first18=Hui|last19=Liu|first19=Min|last20=Xiao|first20=Yan|last21=Gao|first21=Hong|last22=Guo|first22=Li|last23=Xie|first23=Jungang|last24=Wang|first24=Guangfa|last25=Jiang|first25=Rongmeng|last26=Gao|first26=Zhancheng|last27=Jin|first27=Qi|last28=Wang|first28=Jianwei|last29=Cao|first29=Bin|title=Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China|journal=The Lancet|volume=395|issue=10223|year=2020|pages=497–506|issn=01406736|doi=10.1016/S0140-6736(20)30183-5}}</ref><ref name="WangHu2020">{{cite journal|last1=Wang|first1=Dawei|last2=Hu|first2=Bo|last3=Hu|first3=Chang|last4=Zhu|first4=Fangfang|last5=Liu|first5=Xing|last6=Zhang|first6=Jing|last7=Wang|first7=Binbin|last8=Xiang|first8=Hui|last9=Cheng|first9=Zhenshun|last10=Xiong|first10=Yong|last11=Zhao|first11=Yan|last12=Li|first12=Yirong|last13=Wang|first13=Xinghuan|last14=Peng|first14=Zhiyong|title=Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China|journal=JAMA|volume=323|issue=11|year=2020|pages=1061|issn=0098-7484|doi=10.1001/jama.2020.1585}}</ref><ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>
*[[PTA]] (INR) provides a good estimate of liver synthetic function.
* ''Glycoprotein [[gamma-glutamyltransferase]] (GGT)'': A rise in the level of GGT points towards [[cholestasis]] and thus [[Biliary|hepatobiliary]] involvement.
*[[Alkaline phosphatase]] (ALP) is higher in patients.<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref>
*[[PTA]] (INR): It provides a good estimate of liver synthetic function.
*Levels of [[Interleukin|IL]]‐2‐receptor (IL‐2R), IL‐4, IL‐6, IL‐18, IL‐10, [[Tumour necrosis factor|TNF‐α]] were significantly increased IL‐6 in the serum of [[COVID‐19]] patients are significantly increased and correlate with disease severity.<ref name="AliHossain2020">{{cite journal|last1=Ali|first1=Nurshad|last2=Hossain|first2=Khaled|title=Liver injury in severe COVID-19 infection: current insights and challenges|journal=Expert Review of Gastroenterology & Hepatology|year=2020|issn=1747-4124|doi=10.1080/17474124.2020.1794812}}</ref>
*''[[Interleukins]]'': Levels of [[Interleukin|IL]]‐2‐receptor (IL‐2R), IL‐4, IL‐6, IL‐18, IL‐10, [[Tumour necrosis factor|TNF‐α]] are significantly increased. Specially IL‐6 in the serum of [[COVID‐19]] patients are significantly increased and correlates with disease severity.<ref name="AliHossain2020">{{cite journal|last1=Ali|first1=Nurshad|last2=Hossain|first2=Khaled|title=Liver injury in severe COVID-19 infection: current insights and challenges|journal=Expert Review of Gastroenterology & Hepatology|year=2020|issn=1747-4124|doi=10.1080/17474124.2020.1794812}}</ref>
*Abnormal [[Liver function tests|liver biochemistries]] are uncommon in children.<ref name="pmid32345544">{{cite journal |vauthors=Su TH, Kao JH |title=The clinical manifestations and management of COVID-19-related liver injury |journal=J. Formos. Med. Assoc. |volume=119 |issue=6 |pages=1016–1018 |date=June 2020 |pmid=32345544 |pmc=7180368 |doi=10.1016/j.jfma.2020.04.020 |url=}}</ref>
*''[[CBC]]'': [[Leukocytosis]] indicates infection and [[lymphocytosis]] indicating possible viral infection.<ref name="FanChen2020">{{cite journal|last1=Fan|first1=Zhenyu|last2=Chen|first2=Liping|last3=Li|first3=Jun|last4=Cheng|first4=Xin|last5=Yang|first5=Jingmao|last6=Tian|first6=Cheng|last7=Zhang|first7=Yajun|last8=Huang|first8=Shaoping|last9=Liu|first9=Zhanju|last10=Cheng|first10=Jilin|title=Clinical Features of COVID-19-Related Liver Functional Abnormality|journal=Clinical Gastroenterology and Hepatology|volume=18|issue=7|year=2020|pages=1561–1566|issn=15423565|doi=10.1016/j.cgh.2020.04.002}}</ref>


===Electrocardiogram===
===Electrocardiogram===
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===X-ray===
===X-ray===
*There are no [[X-ray]] findings associated with [[COVID-19]]-associated hepatic injury.
*There are no x-ray findings associated with [[COVID-19]]-associated hepatic injury.
*However, an [[X-ray]] may be helpful in the diagnosis of complications of [[COVID-19]] such as [[COVID-19-associated pneumonia]] which is the most common finding associated with [[COVID-19]] infection.
*However, an x-ray may be helpful in the diagnosis of complications of [[COVID-19]] such as [[COVID-19-associated pneumonia]] which is the most common finding associated with [[COVID-19]] infection.
*The [[X-ray]] finidings on [[COVID-19]] can be viewed by [[COVID-19 x ray|clicking here]].
*The x-ray finidings on [[COVID-19]] can be viewed by [[COVID-19 x ray|clicking here]].


===Echocardiography or Ultrasound===
===Echocardiography or Ultrasound===
*There are no echocardiography/ultrasound findings associated with [[COVID-19]]-associated hepatic injury.
*The most common ultrasound findings associated with [[COVID-19]]-associated hepatic injury was fatty liver on the right upper quadrant abdominal ultrasound. Abnormal liver laboratory findings as indicated in Lab finding sections served as an indication to perform the abdominal ultrasound. Distended sludge-filled gallbladder suggestive of cholestasis has been reported in half of the patients studied. Portal venous gas has also been identified in a few patients. <ref name="BhayanaSom2020">{{cite journal|last1=Bhayana|first1=Rajesh|last2=Som|first2=Avik|last3=Li|first3=Matthew D|last4=Carey|first4=Denston E|last5=Anderson|first5=Mark A|last6=Blake|first6=Michael A|last7=Catalano|first7=Onofrio|last8=Gee|first8=Michael S|last9=Hahn|first9=Peter F|last10=Harisinghani|first10=Mukesh|last11=Kilcoyne|first11=Aoife|last12=Lee|first12=Susanna I|last13=Mojtahed|first13=Amirkasra|last14=Pandharipande|first14=Pari V|last15=Pierce|first15=Theodore T|last16=Rosman|first16=David A|last17=Saini|first17=Sanjay|last18=Samir|first18=Anthony E|last19=Simeone|first19=Joseph F|last20=Gervais|first20=Debra A|last21=Velmahos|first21=George|last22=Misdraji|first22=Joseph|last23=Kambadakone|first23=Avinash|title=Abdominal Imaging Findings in COVID-19: Preliminary                    Observations|journal=Radiology|year=2020|pages=201908|issn=0033-8419|doi=10.1148/radiol.2020201908}}</ref>
*However, echocardiography may be helpful in the diagnosis of cardiac complications of [[COVID-19]] which include [[COVID-19-associated heart failure]], or [[COVID-19-associated pericarditis]]. An abdominal [[ultrasound]] may be helpful in the case of [[COVID-19-associated abdominal pain]].
*However, echocardiography may be helpful in the diagnosis of cardiac complications of [[COVID-19]] which include [[COVID-19-associated heart failure]], or [[COVID-19-associated pericarditis]]. An abdominal ultrasound may be helpful in the case of [[COVID-19-associated abdominal pain]].
*The echocardiographic findings on [[COVID-19]] can be viewed by [[COVID-19 echocardiography and ultrasound|clicking here]].<br />
*The echocardiographic findings on [[COVID-19]] can be viewed by [[COVID-19 echocardiography and ultrasound|clicking here]].<br />


===CT scan===
===CT scan===
*There are no [[CT scan]] findings associated with [[COVID-19]]-associated hepatic injury.
*Portal venous gas on abdominal CT has been reported.<ref name="BhayanaSom2020">{{cite journal|last1=Bhayana|first1=Rajesh|last2=Som|first2=Avik|last3=Li|first3=Matthew D|last4=Carey|first4=Denston E|last5=Anderson|first5=Mark A|last6=Blake|first6=Michael A|last7=Catalano|first7=Onofrio|last8=Gee|first8=Michael S|last9=Hahn|first9=Peter F|last10=Harisinghani|first10=Mukesh|last11=Kilcoyne|first11=Aoife|last12=Lee|first12=Susanna I|last13=Mojtahed|first13=Amirkasra|last14=Pandharipande|first14=Pari V|last15=Pierce|first15=Theodore T|last16=Rosman|first16=David A|last17=Saini|first17=Sanjay|last18=Samir|first18=Anthony E|last19=Simeone|first19=Joseph F|last20=Gervais|first20=Debra A|last21=Velmahos|first21=George|last22=Misdraji|first22=Joseph|last23=Kambadakone|first23=Avinash|title=Abdominal Imaging Findings in COVID-19: Preliminary                    Observations|journal=Radiology|year=2020|pages=201908|issn=0033-8419|doi=10.1148/radiol.2020201908}}</ref>
*Chest [[CT scan]] may be helpful in suggesting other organ involvement in the [[COVID-19]] which is a multi-organ [[disease]].
*A non-peer-reviewed retrospective cohort study mentions upper abdominal CT findings in 115 [[COVID-19]] patients in China. The study reports liver hypodensity (more common) and pericholecystic fat stranding. The study claims the correlation betwen CT signs and disease severity grading.<ref name="LeiZhang2020">{{cite journal|last1=Lei|first1=Ping|last2=Zhang|first2=Lan|last3=Han|first3=Ping|last4=Zheng|first4=Chuansheng|last5=Tong|first5=Qiaoxia|last6=Shang|first6=Haitao|last7=Yang|first7=Fan|last8=Hu|first8=Yu|last9=Li|first9=Xin|last10=Song|first10=Yuhu|year=2020|doi=10.21203/rs.3.rs-28692/v1}}</ref>
*The [[CT scan]] findings in [[COVID-19]] can be viewed by [[COVID-19 CT scan|clicking here]]
*Chest CT scan is helpful in suggesting lung involvement in the [[COVID-19]] which is a multi-organ [[disease]].  
*The CT scan findings in [[COVID-19]] can be viewed by [[COVID-19 CT scan|clicking here]].


===MRI===
===MRI===
*There are no [[MRI]] findings associated with [[COVID-19]]-associated hepatic injury.
*There is one liver MRI with gadolinium on a 3T MRI reported to have been performed in a patient with [[COVID-19]]-associated hepatic injury and abnormal liver biochemical tests.No specific findings have been reported.<ref name="BhayanaSom2020">{{cite journal|last1=Bhayana|first1=Rajesh|last2=Som|first2=Avik|last3=Li|first3=Matthew D|last4=Carey|first4=Denston E|last5=Anderson|first5=Mark A|last6=Blake|first6=Michael A|last7=Catalano|first7=Onofrio|last8=Gee|first8=Michael S|last9=Hahn|first9=Peter F|last10=Harisinghani|first10=Mukesh|last11=Kilcoyne|first11=Aoife|last12=Lee|first12=Susanna I|last13=Mojtahed|first13=Amirkasra|last14=Pandharipande|first14=Pari V|last15=Pierce|first15=Theodore T|last16=Rosman|first16=David A|last17=Saini|first17=Sanjay|last18=Samir|first18=Anthony E|last19=Simeone|first19=Joseph F|last20=Gervais|first20=Debra A|last21=Velmahos|first21=George|last22=Misdraji|first22=Joseph|last23=Kambadakone|first23=Avinash|title=Abdominal Imaging Findings in COVID-19: Preliminary                    Observations|journal=Radiology|year=2020|pages=201908|issn=0033-8419|doi=10.1148/radiol.2020201908}}</ref>
*The MRI findings in [[COVID-19]] can be viewed by [[COVID-19 MRI|clicking here]].


===Other Imaging Findings===
===Other Imaging Findings===
Line 245: Line 253:


===Other Diagnostic Studies===
===Other Diagnostic Studies===
*[[Procalcitonin]] and [[C-reactive protein]] is found to be higher in patients and can give a fair idea of [[infection]].<ref name="HuangWang2020">{{cite journal|last1=Huang|first1=Chaolin|last2=Wang|first2=Yeming|last3=Li|first3=Xingwang|last4=Ren|first4=Lili|last5=Zhao|first5=Jianping|last6=Hu|first6=Yi|last7=Zhang|first7=Li|last8=Fan|first8=Guohui|last9=Xu|first9=Jiuyang|last10=Gu|first10=Xiaoying|last11=Cheng|first11=Zhenshun|last12=Yu|first12=Ting|last13=Xia|first13=Jiaan|last14=Wei|first14=Yuan|last15=Wu|first15=Wenjuan|last16=Xie|first16=Xuelei|last17=Yin|first17=Wen|last18=Li|first18=Hui|last19=Liu|first19=Min|last20=Xiao|first20=Yan|last21=Gao|first21=Hong|last22=Guo|first22=Li|last23=Xie|first23=Jungang|last24=Wang|first24=Guangfa|last25=Jiang|first25=Rongmeng|last26=Gao|first26=Zhancheng|last27=Jin|first27=Qi|last28=Wang|first28=Jianwei|last29=Cao|first29=Bin|title=Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China|journal=The Lancet|volume=395|issue=10223|year=2020|pages=497–506|issn=01406736|doi=10.1016/S0140-6736(20)30183-5}}</ref><ref name="WangHu2020">{{cite journal|last1=Wang|first1=Dawei|last2=Hu|first2=Bo|last3=Hu|first3=Chang|last4=Zhu|first4=Fangfang|last5=Liu|first5=Xing|last6=Zhang|first6=Jing|last7=Wang|first7=Binbin|last8=Xiang|first8=Hui|last9=Cheng|first9=Zhenshun|last10=Xiong|first10=Yong|last11=Zhao|first11=Yan|last12=Li|first12=Yirong|last13=Wang|first13=Xinghuan|last14=Peng|first14=Zhiyong|title=Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China|journal=JAMA|volume=323|issue=11|year=2020|pages=1061|issn=0098-7484|doi=10.1001/jama.2020.1585}}</ref>
*There are no other diagnostic studies associated with [[COVID-19]]-associated hepatic injury.


== Treatment ==
== Treatment ==

Revision as of 06:54, 16 July 2020

For COVID-19 frequently asked inpatient questions, click here
For COVID-19 frequently asked outpatient questions, click here

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X-ray

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COVID-19-associated hepatic injury On the Web

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American Roentgen Ray Society Images of COVID-19-associated hepatic injury

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Ongoing Trials at Clinical Trials.gov

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Directions to Hospitals Treating Psoriasis

Risk calculators and risk factors for COVID-19-associated hepatic injury

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Tayyaba Ali, M.D.[2] Javaria Anwer M.D.[3]

Overview

According to 12 clinical studies, 14.8%-53% of COVID-19 patients have liver impairment, suggesting COVID-19-associated hepatic injury, a common complication observed among COVID-19 patients. With the number of cases increasing, abnormal liver function test results have been observed in some patients with COVID-19, making this organ the most frequently damaged outside of the respiratory system.

Historical Perspective

Classification

There is no formal classification of liver damage associated with COVID-19 but, we attempt to divide the entity based on the etiology and mechanism of liver damage:[21][22][8][23][24][25][26][27]

To browse the classification of COVID-19, Click here.

Pathophysiology

The exact mechanism of liver injury is still unclear. There are several proposed mechanisms in an effort to understand the pathogenesis of hepatic injury but the hepatic complications in COVID-19 patients are described as multifactorial and heterogenous. A few of the proposed mechanisms include:

Hepatic Injury through ACE2 receptors

Antibody-mediated Hepatic Injury

Cytokine-mediated Hepatic Injury

COVID-19 medical therapy-induced Hepatic Injury

Sepsis-induced COVID-19-associated Hepatic Injury

Ischemia-reperfusion-induced Hepatic Injury

Differentiating COVID-19-associated hepatic injury from other causes of hepatic injury

  • There are different etiologies of hepatic injury in general but a hepatic injury in a patient having COVID-19 infection itself can be due to different reasons. Although different etiologies of the liver disease show some difference in biochemistry, we lack sufficient data to suggest a specific biochemical factor characteristic, pathognomic of COVID-19 related liver injury. Abnormal liver biochemical markers at the time of diagnosis can give a clue of chronic liver disease in a patient.
  • Deteriorating liver function tests during the course of hospitalization may point towards drug induced liver injury or complication of COVID-19.

Epidemiology and Demographics

Liver test abnormalities from various COVID-19 studies[9]
Author Group Number of patients Alanine

aminotransferase (IU)

Aspartate

aminotransferase (IU)

Prothrombin

time (s)

Bilirubin (μmol/L) Elevated lactate

dehydrogenase, creatinine kinase, or myoglobin

Mortality (%)
Guan et al (2020)[19] ICU or death 67 Not known Not known Not known Not known Yes 22% (day 51)
Huang et al (2020)[18] ICU 13 49 (29–115) 44 (32–70) 12·2 (11·2–13·4) 14·0 (11·9–32·9) Yes 38% (day 37)
Chen et al (2020)[4] Hospitalised 99 39 (22–53) 34 (26–48) 11·3 (1·9) 15·1 (7·3) Yes 11% (day 24)
Wang et al (2020)[47] ICU 36 35 (19–57) 52 (30–70) 13·2 (12·3–14·5) 11·5 (9·6–18·6) Yes 17% (day 34)
Shi et al (2020)[48] Hospitalised 81 46 (30) 41 (18) 10·7 (0·9) 11·9 (3·6) Unclear 5% (day 50)
Xu et al (2020)[49] Hospitalised 62 22 (14–34) 26 (20–32) Not known Not known Unclear 0% (day 34)
Yang et al (2020)[3] ICU 52 Not known Not known 12·9 (2·9)* 19·5 (11·6)* Not described 62% (day 28)
Extracted from all

studies above

Chronic liver

disease

42 Not known Not known Not known Not known Not known 0–2%†


In addition, abnormal liver function test in cases of COVID-19 is often transient and often simultaneously combined with increased enzymes from muscle and heart; these laboratory changes can return to normal without liver-related morbidity and mortality.

Gender

Although is very limited data available, the incidence of liver injury associated with COVID-19 is reported to be higher in males.[42]

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X-ray

Echocardiography or Ultrasound

  • The most common ultrasound findings associated with COVID-19-associated hepatic injury was fatty liver on the right upper quadrant abdominal ultrasound. Abnormal liver laboratory findings as indicated in Lab finding sections served as an indication to perform the abdominal ultrasound. Distended sludge-filled gallbladder suggestive of cholestasis has been reported in half of the patients studied. Portal venous gas has also been identified in a few patients. [54]
  • However, echocardiography may be helpful in the diagnosis of cardiac complications of COVID-19 which include COVID-19-associated heart failure, or COVID-19-associated pericarditis. An abdominal ultrasound may be helpful in the case of COVID-19-associated abdominal pain.
  • The echocardiographic findings on COVID-19 can be viewed by clicking here.

CT scan

  • Portal venous gas on abdominal CT has been reported.[54]
  • A non-peer-reviewed retrospective cohort study mentions upper abdominal CT findings in 115 COVID-19 patients in China. The study reports liver hypodensity (more common) and pericholecystic fat stranding. The study claims the correlation betwen CT signs and disease severity grading.[55]
  • Chest CT scan is helpful in suggesting lung involvement in the COVID-19 which is a multi-organ disease.
  • The CT scan findings in COVID-19 can be viewed by clicking here.

MRI

  • There is one liver MRI with gadolinium on a 3T MRI reported to have been performed in a patient with COVID-19-associated hepatic injury and abnormal liver biochemical tests.No specific findings have been reported.[54]
  • The MRI findings in COVID-19 can be viewed by clicking here.

Other Imaging Findings

  • There are no other imaging findings associated with COVID-19-associated hepatic injury.

Other Diagnostic Studies

  • There are no other diagnostic studies associated with COVID-19-associated hepatic injury.

Treatment

Medical Therapy

Currently there is no specific treatmentthe for patient with COVID-19 associated liver injury. The mainstay of medical therapy is to target the viral infection and control and prevent inflammation.[24][27]

Surgery

  • Surgical intervention is not recommended for the management of COVID-19-associated hepatic injury.

Primary Prevention

  • The disease itself is associated with COVID-19 infection so prevention of the infection itself is the most promising primary prevention strategy at the moment.
  • There are no available vaccines against COVID-19 at the moment. There have been rigorous efforts in order to develop a vaccine for novel coronavirus and several vaccines are in the later phases of trials.[56]
  • The only prevention for COVID-19 associated hepatic injury is the prevention and early diagnosis of the coronavirus-19 infection itself. According to the CDC, the measures include:[57]
    • Frequent handwashing with soap and water for at least 20 seconds or using a alcohol based hand sanitizer with at least 60% alcohol
    • Staying at least 6 feet (about 2 arms’ length) from other people who do not live with you
    • Covering your mouth and nose with a cloth face cover when around others and covering sneezes and coughs
    • Cleaning and disinfecting
  • At this time, the only effective measures for the primary prevention of COVID-19 related liver damage include prevention of itself COVID-19. Drug induced liver injury can be prevented by carefully selecting the drug with a known mechanism of action, not using more than two drugs, and avoiding large doses of hormones along with antiviral drugs.

Secondary prevention

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