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Standard-volume plasma-exchange improves outcomes in patients with acute liver failure - A Randomized Controlled Trial

R. Maiwall, M. Bajpai, A. Singh, Tanvi Agarwal, G. Kumar, Ankit Bharadwaj, Nidhi Nautiyal, H. Tevethia et al.

Clinical Gastroenterology and Hepatology, 2021

40 participants · 163 citations

Abstract

BACKGROUND

High volume plasma-exchange (HVPE) improves survival in patients with acute liver failure (ALF), but apprehension regarding volume overload and worsening of cerebral edema remain.

METHODS

In an open-label randomized controlled trial, 40 consecutive patients of ALF were randomized 1:1 to either standard medical treatment (SMT) or SMT with standard-volume plasma-exchange (SVPE). SVPE was performed using centrifugal apheresis [target volume of 1.5 to 2.0 plasma volumes per session] until desired response was achieved. Cerebral edema was assessed by brain imaging. Results were analyzed in an intention-to-treat analysis. Primary outcome was 21-day transplant-free survival. The levels of cytokines, damage-associated molecular patterns (DAMPs) and endotoxins were analyzed at baseline and day 5.

RESULTS

ALF patients [aged 31.5±12.2 years, 60% male, 78% viral, 83% hyperacute, 70% with SIRS were included. At day 5, SVPE [mean sessions 2.15±1.42, median plasma volume replaced 5.049 L] compared to SMT alone, resulted in higher lactate clearance (p=0.02), amelioration of SIRS (84% vs. 26%; P=0.02), reduction in ammonia levels [(221.5±96.9) vs.(439±385.6) μg/dl, P=0.02) and SOFA scores [9.9(±3.3) vs. 14.6(±4.8); P=0.001]. There were no treatment related deaths. SVPE was associated with a higher 21-day transplant free-survival [75% vs. 45%; P=0.04, HR 0.30, 95%CI 0.01-0.88]. A significant decrease in levels of pro-inflammatory cytokines and an increase in anti-inflammatory…

How strong is the evidence?

Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 40 participants or records.

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