Garg H, Kumar A, Garg V, Kumar M, Kumar R, Sharma BC, Sarin SK.
J Gastroenterol Hepatol. 2013 Aug;28(8):1361-7. doi: 10.1111/jgh.12191.
Department of Hepatology, Institute of Liver & Biliary Sciences (ILBS), New Delhi, India; Department of Gastroenterology, GB Pant Hospital, New Delhi, India.
BACKGROUND AND AIMS:
Acute-on-chronic liver failure (ACLF) is a clinical entity where there is a potential for reversibility of hepatic dysfunction once the acute hepatic insult resolves. The portal and systemic hemodynamics in ACLF patients to study its relevance in determining the clinical outcomes was studied.
Clinical, laboratory, portal, and systemic hemodynamic assessments were done at admission and after 3 months. Standard medical care was given to all the patients.
Fifty-seven patients with ACLF were enrolled, and they underwent baseline hepatic venous pressure gradient (HVPG) measurement. Twenty-six (46%) patients died during the 3-month follow-up. Presence of high HVPG and hepatic encephalopathy were found to be independent baseline predictors of mortality. Of the 31 surviving patients, 24 consented for a repeat HVPG. The baseline HVPG reduced from 16 (range 12-30) to 13 (range 6-21) mmHg; (P < 0.05). The reduction in HVPG correlated with clinical and biochemical recovery, and reduction in Child-Turcotte-Pugh score score (P < 0.05), while the aortic mean arterial pressure, cardiac index and systemic vascular resistance index improved significantly (< 0.05). Six (25%) patients developed upper gastrointestinal bleed; the median HVPG between bleeders and non-bleeders was not different possibly because of early onset of bleed (median 20 [15-45 days]).
\Baseline HVPG is an independent predictor of mortality in ACLF patients. The portal and systemic circulatory anomalies regress substantially by 90 days and correlate with clinical recovery. However, in the initial phase, the raised portal pressure predisposes these patients to high risk of variceal bleeding.
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