Portal Vein Thrombosis Risk in Cirrhotic Patients With Portal Hypertension on Beta‐Blockers: A Multi‐Institutional Cohort Study

BACKGROUND: Portal vein thrombosis (PVT) is a significant complication of cirrhosis. Nonselective beta-blockers (NSBBs) are standard therapy for portal hypertension, but their effect on PVT risk remains uncertain. AIM: To assess whether NSBB use after variceal band ligation increases PVT risk and to compare outcomes among propranolol, carvedilol and no NSBB therapy. METHODS: We conducted a retrospective cohort study using the TriNetX US Collaborative Network (> 110 million patients). Adults with cirrhosis and portal hypertension who underwent variceal band ligation (2010-2024) were included. Patients were stratified by NSBB exposure and matched 1:1 on 12 clinical variables. The primary outcome was incident PVT; secondary outcome was all-cause mortality. Kaplan-Meier analysis evaluated time-to-event outcomes. RESULTS: After matching (n = 4296 per group), NSBB use was associated with higher PVT incidence compared with no NSBBs (9.5% vs. 5.4%; RR 1.765, 95% CI 1.500-2.077). Propranolol was associated with increased PVT risk, whereas carvedilol showed similar PVT incidence to controls and significantly lower mortality compared with both propranolol and no NSBB use. CONCLUSIONS: Propranolol use was linked to increased PVT risk, while carvedilol did not elevate PVT risk and was associated with improved survival. Beta-blocker selection may meaningfully influence outcomes in cirrhosis.