Conversion of Percutaneous Cholecystostomy to Internal Transmural Gallbladder Drainage Using an Endoscopic Ultrasound-Guided, Lumen-Apposing Metal Stent.

Patients with acute cholecystitis sometimes require placement of percutaneous cholecystostomy catheters, either as a bridge to surgery or as primary therapy. In patients who cannot undergo surgery, subsequent removal of the catheter can lead to recurrence of cholecystitis, whereas leaving the drain in place can cause adverse events. We investigated internalization of percutaneous cholecystostomy drainage catheters, using endoscopic ultrasound (EUS)-guided placement of lumen-apposing metal stents (LAMS) as an alternative treatment strategy. Seven patients (median age, 57 years; 6 men) underwent EUS-guided cholecystoenterostomy for internalization of gallbladder drainage with EUS-guided placement of a 10- or 15-mm LAMS. All had initially been treated with placement of a percutaneous cholecystostomy catheter for cholecystitis and were later deemed unfit for cholecystectomy. Technical success was achieved in all patients in 1 endoscopic session, with subsequent removal of all percutaneous drains. Two patients required placement of self-expandable metal stents within the LAMS to successfully bridge the gallbladder and gastrointestinal lumen. No adverse events occurred after a median follow-up of 2.5 months. EUS-guided cholecystoenterostomy using a LAMS is therefore a viable option for internal gallbladder drainage in patients who have a percutaneous cholecystostomy catheter and are poor candidates for cholecystectomy.