A novel bipolar electrocautery-enhanced delivery system with a lumen-apposing metal stent for EUS-guided drainage: A porcine study
- Authors
- Jo, Seok Jung; Moon, Jong Ho; Lee, Yun Nah; Park, Jae Keun; Lee, Tae Hoon; Park, Sang-Heum; Park, Se Ik; Jeong, Seok; Lee, Don Haeng
- Issue Date
- Jun-2022
- Publisher
- Springer Verlag
- Keywords
- endoscopic ultrasound; gallbladder; self-expandable metallic stents
- Citation
- Journal of Hepato-Biliary-Pancreatic Sciences
- Journal Title
- Journal of Hepato-Biliary-Pancreatic Sciences
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/21663
- DOI
- 10.1002/jhbp.1180
- ISSN
- 1868-6974
1868-6982
- Abstract
- Background An electrocautery-enhanced delivery system with a lumen-apposing metal stent (LAMS) is available for one-step endoscopic ultrasound-guided transmural drainage (EUS-TD). Bipolar electrosurgery has several potential clinical advantages, including reduced collateral thermal damage, enhanced hemostasis, and no requirement for a return electrode plate. In this study, we compared the technical feasibility and safety of a newly developed bipolar electrocautery-enhanced delivery system with a conventional delivery system for EUS-TD using a LAMS in a porcine model. Method Ten days before the study, 12 mini pigs underwent common bile duct ligation for EUS-guided gallbladder drainage. Transenteric puncture was performed, followed by placement of a guidewire. In six pigs, a bipolar electrocautery-enhanced delivery system with LAMS (Hot SPAXUS) was inserted over the guidewire and advanced into the gallbladder, without prior dilation of the tract, by applying a bipolar cut current. In the remaining six pigs, a conventional delivery system with LAMS (Cold SPAXUS) was inserted after tract dilatation using a cystotome. The stent was removed after 4 weeks. Results In all pigs, the stent was successfully inserted and deployed in the gallbladder without adverse events. The mean procedure time of EUS-TD was significantly lower in the Hot SPAXUS group than that of the Cold SPAXUS group (mean +/- standard deviation: 188.7 +/- 5.2 vs 449.5 +/- 97.5 s, P = .0019). Stent migration was not observed, and all stents were removed successfully. Conclusions Endoscopic ultrasound-guided transmural drainage using a bipolar electrocautery-enhanced LAMS is feasible for reducing the procedure time while maintaining the high success rate and safety of conventional LAMS.
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Collections - College of Medicine > Department of Internal Medicine > 1. Journal Articles
- College of Medicine > Department of Internal Medicine > 1. Journal Articles
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