Low-dose continuous terlipressin infusion is effective and safer than intravenous bolus injections in reducing portal pressure and control of acute variceal bleeding

Background and aims Continuous infusion of terlipressin is better tolerated, and equally effective at lower doses than intravenous boluses in type 1 hepatorenal syndrome. This approach in cirrhosis patients with acute esophageal variceal bleed was investigated by comparing the efficacy and adverse events of continuous versus bolus administration of terlipressin. Methods One hundred ten consecutive cirrhosis patients with acute esophageal variceal bleed (AEVB) were randomized to receive either terlipressin as bolus (BOL, n = 55), 2 mg every 4 h, or, continuous infusion (CONI, n = 55), 4 mg/24 h for 5 days. Hepatic venous pressure gradient (HVPG) was measured at baseline, 12 and 24 h and response to terlipressin was defined as > 10% decline from baseline. Results Baseline demographics, model for end-stage liver disease (MELD) and HVPG were comparable between groups. The primary objective of HVPG response at 24 h was achieved in significantly more patients in CONI than BOL group {47/55(85.4%) vs. 32/55(58.2%), p = 0.002}. Early HVPG response at 12 h was also higher in CONI group (71.5 vs. 49.1%, p < 0.01). Median dose of terlipressin was significantly lower {4.25 +/- 1.26 mg vs. 7.42 +/- 1.42 mg/24 h, p < 0.001)} and adverse events were fewer {20/55(36.3%) vs. 31/55(56.4%), p = 0.03} in the CONI than BOL group. Significantly higher incidence of very early rebleed was noted in BOL group {8/55 (14.5%) vs. 1/55, (1.8%), p = 0.03}. Baseline HVPG (OR 1.90, 95% CI = 1.25-2.89, p = 0.002) and MELD (OR 1.18, 95% CI = 0.99-1.41, p = 0.05) were predictors of rebleed. Conclusion "HVPG-tailored " continuous terlipressin infusion is more effective than bolus administration in reducing HVPG at a lower dose with fewer adverse events in cirrhotic patients.