Epidemiology And Outcomes Of Marked Elevations Of Alanine Aminotransferase > 1000 Iu/L In An Australian Cohort
JGH OPEN(2020)
摘要
Background and Aim: Marked elevations of alanine aminotransferase (ALT) are caused by a limited number of underlying pathologies, including hepatic ischemia, drugs/toxins, viral hepatitis, and-rarely-autoimmune hepatitis. The aim of this study was to determine the relative incidence of pathologies resulting in ALT greater than 1000 IU/L and factors predicting clinical outcomes in an Australian cohort.Methods: A retrospective cohort study of all adult patients with ALT levels greater than 1000 IU/L between January 2013 and December 2015 was conducted at a large teaching hospital network in Australia. Multivariable logistic regression analysis was used to determine predictors of etiology and mortality.Results: There were 287 patients identified with ALT levels greater than 1000 IU/L. The most common causes were ischemia (44%), drugs/toxins (19%), biliary obstruction (16%), and viral hepatitis (7%). Independent predictors of a diagnosis of ischemic hepatitis included (adjusted odds ratio; 95% confidence interval): hypotension (29.2; 8.2-104.7), chronic obstructive pulmonary disease (COPD) (20.2; 2.8-145.3), coronary artery disease (12.9; 1.7-98.9), congestive cardiac failure (7.8; 1.2-49.2), diabetes mellitus (7.4; 1.6-33.9), metabolic acidosis (6.2; 2.0-19.4), gamma-glutamyltransferase < 135 IU/L (5.1; 1.5-17.6), and albumin <34 g/L (3.4; 1.1-11.0). Independent risk factors for all-cause 28-day mortality included: septic shock (14.7; 4.3-50.7), metabolic acidosis (7.3; 2.5-21.3), history of COPD (5.4; 1.6-17.8), cardiogenic shock (4.3; 1.6-11.7), prothrombin time >= 20 s (3.7; 1.5-9.2), and age >= 65 years (3.0; 1.3-7.2).Conclusions: Ischemic hepatitis was the most common cause of ALT levels greater than 1000 IU/L and was associated with high mortality.
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关键词
alanine aminotransferase, alanine transaminase, ischemic hepatitis
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