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Journal Article
Observational Study
Acute Liver Failure Due to Hepatitis E Virus Infection Is Associated with Better Survival than Other Etiologies in Indian Patients.
Digestive Diseases and Sciences 2017 April
BACKGROUND AND AIM: Hepatitis E virus (HEV) is a global disease and an important cause of acute liver failure (ALF) in the Indian subcontinent. The aim of this study was to assess the differences in the course of HEV-ALF as compared to other etiologies of ALF.
METHODS: We compared the clinical course, complications, and outcomes of HEV-ALF with other etiologies. We assessed the prognostic factors and compared existing prognostic scores in HEV-ALF patients.
RESULTS: One thousand four hundred and sixty-two ALF patients were evaluated between January 1986 and December 2015. HEV was the etiology of ALF in 419 (28.7%) cases, whereas non-A non-E hepatitis, HBV and anti-tuberculosis therapy (ATT) were the etiologies in 527 (36.0%), 128 (8.8%), and 103 (7.0%) cases, respectively. The frequency of cerebral edema in HEV-ALF (41.3%) was lower than that in non-A non-E ALF (52.9%; P < 0.001) and HBV-ALF (52.8%; P = 0.024). Infection and seizures were significantly less in patients with HEV-ALF compared to non-A non-E and HBV-ALF (P = 0.038 and 0.022, respectively). The survival of HEV-ALF patients was significantly better (55.1%, P < 0.001) than patients of other etiologies-including ATT (30.0%), non-A non-E (38.1%) and HBV (35.9%). In HEV-ALF patients, age, female sex, cerebral edema, prothrombin time >60 s, infection, and total bilirubin were observed as independent predictors of outcome on multivariate logistic regression analysis. Model for end-stage liver disease, acute liver failure study group model and King's College Hospital criteria had poor discriminative accuracy for outcome (area under receiver operator characteristic curve 0.63-0.64) in HEV-ALF.
CONCLUSIONS: Hepatitis E virus-associated ALF has a better outcome than ALF of other etiologies.
METHODS: We compared the clinical course, complications, and outcomes of HEV-ALF with other etiologies. We assessed the prognostic factors and compared existing prognostic scores in HEV-ALF patients.
RESULTS: One thousand four hundred and sixty-two ALF patients were evaluated between January 1986 and December 2015. HEV was the etiology of ALF in 419 (28.7%) cases, whereas non-A non-E hepatitis, HBV and anti-tuberculosis therapy (ATT) were the etiologies in 527 (36.0%), 128 (8.8%), and 103 (7.0%) cases, respectively. The frequency of cerebral edema in HEV-ALF (41.3%) was lower than that in non-A non-E ALF (52.9%; P < 0.001) and HBV-ALF (52.8%; P = 0.024). Infection and seizures were significantly less in patients with HEV-ALF compared to non-A non-E and HBV-ALF (P = 0.038 and 0.022, respectively). The survival of HEV-ALF patients was significantly better (55.1%, P < 0.001) than patients of other etiologies-including ATT (30.0%), non-A non-E (38.1%) and HBV (35.9%). In HEV-ALF patients, age, female sex, cerebral edema, prothrombin time >60 s, infection, and total bilirubin were observed as independent predictors of outcome on multivariate logistic regression analysis. Model for end-stage liver disease, acute liver failure study group model and King's College Hospital criteria had poor discriminative accuracy for outcome (area under receiver operator characteristic curve 0.63-0.64) in HEV-ALF.
CONCLUSIONS: Hepatitis E virus-associated ALF has a better outcome than ALF of other etiologies.
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