Intraoperative imaging and management of common duct stones during subtotal cholecystectomy.

BACKGROUND

Subtotal cholecystectomy is advocated in patients with severe inflammation and distorted anatomy preventing safe removal of the entire gallbladder. Not well documented in this surgically complex population is the feasibility of intraoperative imaging and management of common bile duct (CBD) stones. We evaluated these operative maneuvers in our subtotal cholecystectomy patients.

METHODS

We retrospectively reviewed all cholecystectomy cases from 2014 to 2023 at a single Veterans Affairs (VA) Medical Center using VASQIP (VA Surgical Quality Improvement Program), selecting subtotal cholecystectomy cases for detailed analysis. We reviewed operative reports, imaging and laboratory studies, and clinical notes to understand biliary imaging, stone management, complications, and late outcomes including retained stones (within 6 months), and recurrent stones (beyond 6 months).

RESULTS

419 laparoscopic (n = 406) and open (n = 13) cholecystectomies were performed, including 40 subtotal cholecystectomies (36 laparoscopic, 4 laparoscopic converted to open). Among these 40 patients IOC was attempted in 35 and completed in 26, with successful stone management in 11 (9 common bile duct exploration [CBDE], 2 intraoperative endoscopic retrograde cholangiopancreatography [ERCP]). In follow-up, 3 additional patients had CBD stones managed by ERCP, including 1 with a negative IOC and 2 without IOC. Thus, 14 (35%) of 40 patients had CBD stones. Of note, IOC permitted identification and oversewing or closure of the cystic duct in 32 patients. There were no major bile duct injuries and one cystic duct stump leak (2.5%) that resolved spontaneously.

CONCLUSIONS

Subtotal cholecystectomy patients had a high incidence of bile duct stones, with most detected and managed intraoperatively with CBDE, making a strong argument for routine IOC and single-stage care. When intraoperative imaging is not possible, postoperative imaging should be considered. Routine imaging, biliary clearance, and cystic duct closure during subtotal cholecystectomy is feasible in most patients with low rates of retained stones and bile leaks.