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Surg Laparosc Endosc Percutan Tech. 2012 Dec;22(6):514-7. doi: 10.1097/SLE.0b013e318274310b.

Prediction of the surgical difficulty of single-port laparoscopic cholecystectomy.

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  • 1Department of Surgery I, Oita University Faculty of Medicine, Yufu, Oita, Japan.


The aim of this study was to use the difficulty score for a laparoscopic cholecystectomy procedure to predict the surgical difficulty of single-port laparoscopic cholecystectomy. From January 2009 to April 2011, single-port laparoscopic cholecystectomy was performed in 30 patients at our institution. The patients were evaluated using the difficulty score and classified into 3 groups: low, intermediate, and high difficulty. All surgeries were successfully completed without conversion to conventional laparoscopic surgery. A strong relationship was observed between the increasing score and longer surgical time. The mean surgical time was longer and the amount of blood loss was greater in the intermediate-difficulty and high-difficulty groups than in the low-difficulty group. Moreover, the high-difficulty group had a higher rate of insertion of an additional trocar than the low-difficulty group. Thus, the difficulty of single-port laparoscopic cholecystectomy is well predicted using the difficulty score.

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