• Obesity surgery · Nov 2013

    Multifactorial analysis of the learning curve for totally robotic Roux-en-Y gastric bypass for morbid obesity.

    • Myriam Renaud, Nicolas Reibel, Rasa Zarnegar, Adeline Germain, Didier Quilliot, Ahmet Ayav, Laurent Bresler, and Laurent Brunaud.
    • Department of Digestive, Hepato-Biliary and Endocrine Surgery, Hopital Brabois Adultes, pôle UND, Université de Lorraine-CHU Nancy, Vandoeuvre les Nancy, 54511, France.
    • Obes Surg. 2013 Nov 1; 23 (11): 1753-60.

    BackgroundLaparoscopic Roux-en-Y gastric bypass is one of the most commonly performed bariatric operation worldwide for the surgical management of obesity. Totally robotic Roux-en-Y gastric bypass (TR-RYGBP) has been considered to be a better approach by some groups especially early in a surgeon's experience. However, the learning curve associated with TR-RYGBP has been poorly evaluated yet. The aim of this study was to evaluate the learning curve of patients who underwent TR-RYGBP.MethodsThis is a prospective study of 154 first consecutive patients undergoing TR-RYGBP to analyze the influence of surgeon experience, bedside first assistant, and patient factors on operative time and postoperative complications. To give a comprehensive view of success related to the learning process, a single hybrid variable was generated. Multivariate analysis predicted the risk factors for complications and operative time. A risk-adjusted cumulative sum analysis estimated the learning curve.ResultsThe learning curve for TR-RYGBP was 84 cases. Case rank and first assistant level were independent predictors of total operative time. Overall 30-day postoperative morbidity rate was 33.1 % and decreased over time. Surgeon experience (OR 2.6; CI 95 [1.290 to 5.479]; p = 0.0081) and first assistant level (OR 2.42; CI 95 [1.197 to 4.895]; p = 0.0139) remained independent predictors of composite event (operative time and complications).ConclusionsThis study identifed criteria that should be assessed in future studies about TR-RYGBP. Both surgeon experience and bedside first assistant level affected operative duration, but surgeon experience was the most significant factor in reducing complication rates.

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