Abstract
Acute liver failure (ALF) is a medical emergency and liver transplantation (LT) may be required as definitive therapy. The etiology varies across geographical locations and is mostly viral dominant in India. We aimed at evaluating the spectrum, impact of interventions (plasma exchange [PLEx], continuous renal replacement therapy [CRRT]) and outcomes of ALF in India in recent times. A multicentre retrospective study across four major tertiary care centres. As many as 183ALF patients (median age, 23years; females, 43.1%; model for end-stage liver disease [MELD], 32.7) from January 2021 to December 2023 were included. Nineteen percent had infection and 40.4% of patients satisfied King's College criteria (KCC) at admission. Most common cause for ALF was hepatitis A virus (HAV) (44.2%) followed by rodenticide poisoning (10.3%). Approximately 35% of patients each received either PLEx or CRRT. The 7, 14 and 21-day transplant-free survival probability was 65.5%, 60.1%, and 57.3%, respectively. Only 3.8% of patients underwent liver transplantation. On multivariable Cox regression analysis, hemoglobin (HR, 0.74 [0.63-0.87]), lactate (HR, 1.14 [1.03-1.26]), advanced hepatic encephalopathy (HE) (HR, 4.87 [1.89-12.5]) and fulfilling KCC [HR, 10.04 [4.57-22.06]) at admission were the independent predictors of mortality. A model including KCC + lactate + HE ≥ 3 with or without hemoglobin had an AUROC of 0.81-0.84 to predict mortality. In those who underwent PLEx, advanced HE (HR, 4.13 [1.75-9.7]), procalcitonin (HR, 1.18 [1.07-1.30]) and KCC (HR, 4.6 [1.6-13.1), while for those who received CRRT, lactate (HR, 1.37 [1.22-1.54]) and KCC (HR, 6.4 [2.5-15.8]) independently predicted mortality. Hepatitis A virus is currently the most common cause for ALF in India, emphasizing the need for universal vaccination programmes. Spontaneous survival in tertiary care centres is 57%. LT rates were low.
Published Version
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