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Acute Liver Failure Due to Hepatitis E Virus Infection Is Associated with Better Survival than Other Etiologies in Indian Patients

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Abstract

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.

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Abbreviations

ALF:

Acute liver failure

ALFED:

Acute liver failure early dynamic

ATT:

Anti-tuberculosis therapy

HAV:

Hepatitis A virus

HBV:

Hepatitis B virus

HEV:

Hepatitis E virus

INR:

International normalized ratio

KCH:

King’s College Hospital criteria

LT:

Liver transplant

MELD:

Model for end-stage liver disease

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Author's contributions

Shalimar, acquisition of data, study design and concept, data analysis, interpretation of data, drafting of manuscript; SK, acquisition of data; DG, acquisition of data; US, acquisition of data; SJM, acquisition of data; BN, acquisition of data; HK, acquisition of data; SKA, study design and concept, interpretation of data, critical revision of manuscript for important intellectual content.

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Correspondence to Subrat Kumar Acharya.

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Shalimar, Kedia, S., Gunjan, D. et al. Acute Liver Failure Due to Hepatitis E Virus Infection Is Associated with Better Survival than Other Etiologies in Indian Patients. Dig Dis Sci 62, 1058–1066 (2017). https://doi.org/10.1007/s10620-017-4461-x

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