Prospective Trial for Endoscopic Ultrasound Guided Gallbladder Drainage for Acute Cholecystitis in High Risk Patients

EUS-guided gallbladder drainage was performed with a linear-array echoendoscope. The initial puncture was performed at the antrum of the stomach or bulb of the duodenum and was chosen to access the gallbladder body or neck and avoid visible vessels. After removal of the needle, a 6F or 7F bougie were inserted and then removed to dilate the tract. Afterward, nasobiliary drainage tube or stent was placed.

Under ultrasound guidance, needle punctured to gallbladder via percutaneous transhepatic route.