Background. Emergency cholecystectomy is the gold standard treatment for acute cholecystitis according to National Institute for Health and Care Excellence recommendations. The procedure is feasible but carries a higher risk of iatrogenic injury to the bile duct, which should be considered preventable. Intraoperative fluorescence cholangiography following injection of indocyanine green (ICG) has been reported to aid identification of the extrahepatic bile duct. Data on its feasibility in the context of emergency cholecystectomies are missing. Materials and Methods. Fluorescent ICG was used intraoperatively to enhance the biliary anatomy during 33 consecutive emergency laparoscopic cholecystectomies at our institution. Primary outcomes of surgery were considered the length of hospital stay, conversion to open and complications rate, including bile duct injury. Secondary outcome was operating time. A historical population of emergency cholecystectomies was used as control. Results. There were no common bile duct injuries, no adverse effects from ICG, no conversion to open surgery and no deaths. 90% of patients went home within 48 hours after the operation in the absence of complications. ICG demonstrated intraoperative biliary anatomy allowing greater confidence to the surgeon performing emergency cholecystectomies. Six patients were operated beyond 72 hours from admission, without experiencing any complication Clavien-Dindo ≥3. ICG population had the same post-operative hospitalisation and complications rate of the control group, with a shorter operating time. Conclusion. Intraoperative augmented visualisation of biliary anatomy with ICG cholangiography can be a useful technology tool, with the potential to extend the 72 hours window of safety for emergency cholecystectomies.
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