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Introduction: Since the introduction of laparoscopic surgery, surgeons have not only been concerned about clinical outcomes, but also surgical scars. Although natural orifice transluminal endoscopic surgery (NOTES) is promising, it is not applicable to clinical practice thus far due to safety concerns. As a transitional procedure between standard laparoscopic surgery and NOTES, single-port transumbilical laparoscopic surgery might be an ideal alternative. The main advantage of single-port transumbilical laparoscopic surgery is that it is performed with existing instruments. Thus, we applied single-port surgery for cholecystectomies and the clinical outcomes were analyzed.

Methods: Between July and October 2008, 37 adults with gallbladder pathologies were enrolled in this study. Only one transumbilical incision was made for accessing the abdominal cavity and a multichannel port system was assembled with …