Abstract

PIMENTEL, Aníbal; SERRANO, Hely; GUERRERO, Mariana  and  URIBE, Juan Carlos. Learning curve in single port laparoscopic cholecystectomy: experience with more tan 400 consecutive patients. rev. colomb. cir. [online]. 2016, vol.31, n.4, pp.248-255. ISSN 2011-7582.

Background: Single-port laparoscopic cholecystectomy (SPL-C) is a novel minimally invasive technique designed to minimize the trauma of the surgical access, limiting the procedure to one incision which is needed for extraction of the specimen. Objective. The aim of this study was to evaluate the feasibility, security and learning curve of SPL-C using standard laparoscopic instruments. Materials and Methods: A prospective study was performed analyzing 465 consecutive patients that were submitted to SPL-C using standard laparoscopic instruments between march 2012 and February 2016. Main indication for cholecystectomy was chronic cholecystitis in 70% of our patients (n=327). The learning curve was evaluated using the CUSUM method (cumulative sum). Results: 465 consecutive SPL-C procedures were performed using standard laparoscopic instruments, 350 women and 115 men, median age was 43 years (range, 13 - 81), The median operative time was 35 minutes (range, 20 - 80), ASA score of 1 in 76,3%; obesity was found in 19,3% with median BMI 33 kg/m², previous abdominal surgery in 57,8%, conversion rate to multiport technique was 3,4% (n=16) and there was no conversion to open surgery. Ambulatory setting was feasible in 331 patients (71%). Minor complications were recorded, the most frequent was wound seroma 3,2%. Conclusions: SPL-C using standard instrumentation is feasible and seems to be safe. The analysis demonstrated that phase 1 of the learning curve for an advanced laparoscopic surgeon can be achieved after 50 cases.

Keywords : cholecystectomy; laparoscopic; learning curve; training; motor skills; education; medical.

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