Hypoxic hepatitis: underlying conditions and risk factors for mortality in critically ill patients
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Hypoxic hepatitis (HH) is a frequent cause of acute hepatocellular damage at the intensive care unit. Although mortality is reported to be high, risk factors for mortality in this population are unknown.
One-hundred and seventeen consecutive patients with HH were studied prospectively at three medical intensive care units of a university hospital.
The main causes of hypoxic hepatitis were low cardiac output and septic shock, and most patients (74%) had more than one underlying factor. Peak aspartate transaminase (P = 0.02), lactate dehydrogenase (P = 0.03), INR (P < 0.001) and lactate (P < 0.01) were higher in non-survivors. Prolonged duration of HH caused higher overall mortality rate (P = 0.03). INR > 2 (P = 0.02), septic shock (P = 0.01) and SOFA score >10 (P = 0.04) were risk factors of mortality in the regression model.
Hypoxic hepatitis is the consequence of multiorgan injury. Outcome is influenced by the severity of liver impairment and the etiology and severity of the basic disease.
KeywordsIschemic hepatitis Shock liver Risk factors Hypoglycemia
Intensive care unit
Serum aspartate transaminase level
Serum alanine transaminase level
Lactate dehydrogenase level
International normalized ratio
Simplified acute physiology score
Sequential organ failure assessment
There was no financial support for this study.
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