A hinged metalloplastic anastomotic device: a novel method for choledochoduodenostomy
Priya Jamidar1, Margherita Cadeddu, Alexander Mosse
1Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06520-8019, USA. priya.jamidar@yale.edu
Gastrointestinal Endoscopy
|March 3, 2009
Summary
A novel magnetic device successfully created large-diameter biliary-duodenal fistulas in pigs, offering a promising new method for biliary drainage in obstruction cases.
Area of Science:
- Gastroenterology and Hepatobiliary Surgery
- Biomedical Engineering
- Surgical Innovation
Background:
- Biliary obstruction necessitates effective drainage solutions.
- Creating a large-diameter, permanent biliary-duodenal fistula is a desirable clinical goal.
Purpose of the Study:
- To develop and evaluate a novel method for creating a biliary-duodenal anastomosis.
- To prototype and test a new hybrid metalloplastic anastomosis device.
Main Methods:
- A survival and nonsurvival porcine model was utilized in an animal laboratory setting.
- A hybrid metalloplastic anastomosis device with magnetic components was employed to create choledochoduodenal fistulas.
- Device placement involved insertion into the bile duct, with magnets exerting compressive force on the bile duct and duodenum.
Main Results:
- Seven anastomosis devices were successfully placed in pigs.
- All four survival animals recovered well, demonstrating successful anastomosis creation.
- Endoscopic and postmortem examination revealed patent biliary-duodenal openings ranging from 5 to 10 mm.
Conclusions:
- A novel method for achieving larger-diameter biliary drainage was successfully developed.
- The study demonstrated the feasibility of using a magnetic metalloplastic device for biliary-duodenal anastomosis.
- Further investigation is warranted, considering the small sample size.
