Endoscopic Ultrasound-Guided Transmural and Percutaneous Transhepatic Gallbladder Drainage Are Comparable for Acute Cholecystitis

BACKGROUND & AIMS: Endoscopic ultrasound-guided transmural gallbladder drainage (EUS-GBD) is an alternative to percutaneous transhepatic gallbladder drainage (PTGBD) for patients with acute, high-risk, or advanced-stage cholecystitis who do not respond to initial medical treatment and cannot undergo emergency cholecystectomy. However, the technical feasibility, efficacy, and safety of EUS-GBD and PTGBD have not been compared. METHODS: Fifty-nine patients with acute cholecystitis, who did not respond to initial medical treatment and were unsuitable for an emergency cholecystectomy, were chosen randomly to undergo EUS-GBD (n = 30) or PTGBD (n = 29). The technical feasibility, efficacy, and safety of EUS-GBD and PTGBD were compared. RESULTS: EUS-GBD and PTGBD showed similar technical (97% [29 of 30] vs 97% [28 of 29]; 95% 1-sided confidence interval lower limit, -7%; P = .001 for noninferiority margin of 15%) and clinical (100% [29 of 29] vs 96% [27 of 28]; 95% 1-sided confidence interval lower limit, -2%; P = .0001 for noninferiority margin of 15%) success rates, and similar rates of complications (7% [2 of 30] vs 3% [1 of 29]; P = .492 in the Fisher exact test) and conversions to open cholecystectomy (9% [2 of 23] vs 12% [3 of 26]; P = .999 in the Fisher exact test). The median post-procedure pain score was significantly lower after EUS-GBD than after PTGBD (1 vs 5; P < .001 in the Mann-Whitney U test). CONCLUSIONS: EUS-GBD is comparable with PTGBD in terms of the technical feasibility and efficacy; there were no statistical differences in the safety. EUS-GBD is a good alternative for high-risk patients with acute cholecystitis who cannot undergo an emergency cholecystectomy.