Abstract

To evaluate prognostic factors associated with peri-procedural (30days) and short-term (90days) mortality in the United States cohort of patients following emergent transarterial embolization for ruptured hepatocellular carcinoma. Patients with ruptured hepatocellular carcinoma treated with emergent TAE between January 2001 and December 2019 were retrospectively identified (n = 24). Average age was 62years (range, 23-78year); 15 (62.5%) were men. Univariate and Cox proportional hazard modeling were used to determine independent predictors of overall survival (OS) following TAE. OS stratified by Model for End-Stage Liver Disease-Sodium score was assessed using Kaplan-Meier analysis. Twenty-one patients (88%) died during a mean clinical follow-up period of 328 ± 139days. MELD-Na score (HR 1.22 per 1-unit increase; 95% CI 1.06-1.46; p = 0.005) and pre-rupture ECOG PS score (HR 8.1; 95% CI 1.28-51.2; p = 0.026) were independent predictors of decreased overall survival. There was no significant association between overall survival and presence of cardiovascular co-morbidities (p = 0.60), hemorrhagic shock on presentation (p = 0.16), portal vein thrombus (p = 0.08), vasopressor support required (p = 0.79), intubation required (p = 0.40), acute kidney injury (p = 0.58), and number of packed red blood cell transfusions (p = 0.22). The median OS was 64days. Median OS was significantly greater in patients with a MELD-Na score ≤ 16 as compared to those with a MELD-Na score > 16 (166.5days vs 9days, p = 0.011). Cumulative OS rates in those with a MELD-Na score ≤ 16 at 30, 60, 90, and 360days were 79%, 64%, 64%, and 25%, respectively, vs 33%, 33%, 11%, and 0%, respectively, in those with a MELD-Na score > 16. MELD-Na > 16 is associated with very high peri-procedural (67% at 30days) and short-term (89% at 90days) mortality in patients with ruptured HCC treated with emergent transarterial embolization. A better understanding of these prognostic factors may help guide treatment decisions and provide realistic expectations when counseling patients and their families.

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