Summary
Endoscopic in situ occlusion of the cystic duct and ablation of the gallbladder could constitute a useful alternative to cholecystectomy in certain patients. The purpose of this study was to examine the feasibility of endoluminal occlusion of the cystic duct using a biodegradable polyglycolic acid screw and simultaneous gallbladder mucosal ablation with a Sotradecol-ethanol mixture.
Eight pigs had operative cholecystotomy. A polyglycolic acid screw was twisted into the cystic duct after the proximal cystic duct mucosa was thermally ablated using electrocautery. Cholecystography confirmed occlusion of the cystic duct. Synchronous ablation of the gallbladder mucosa was then done by instilling absolute alcohol and 2% Sotradecol. The gallbladder was drained. Animals were sacrificed on days 14, 28, and 42.
All animals survived operation and showed no untoward effects. Postmortem gross inspection showed gallbladders were shrunken and surrounded with adhesions from adjacent tissue. Cholangiography and cholecystography confirmed occlusion of the cystic duct in 6 of 8 pigs (75%). Histopathologic examination showed extensive areas of mucosal necrosis mixed with small areas of epithelial regeneration.
Immediate occlusion of the cystic duct is possible using an endoluminal polyglycolic acid screw.
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Bell, R.C.W., Stiegmann, G.V., Sun, J. et al. Immediate cystic duct occlusion using an endoluminal absorbable polyglycolic acid screw. Surg Endosc 7, 173–176 (1993). https://doi.org/10.1007/BF00594101
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DOI: https://doi.org/10.1007/BF00594101