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KMID : 0371320110800020119
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Journal of the Korean Surgical Society
2011 Volume.80 No. 2 p.119 ~ p.124
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The Learning Curve for Single-Port Laparoscopic Cholecystectomy by Experienced Laparoscopic Surgeon
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Youn Soon-Hwa
Roh Young-Hoon
Choi Hong-Jo
Kim Young-Hoon
Jung Ghap-Joong
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Abstract
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Purpose: Single-port laparoscopic surgery is a rapidly advancing technique in laparoscopic surgery. However, there is currently limited evidence on the learning curve for this procedure. The aim of this study was to estimate the number of single port laparoscopic cholecystectomies required until improvement in the performance of the technique ceases.
Methods: This is a descriptive, single-center study using routinely collected clinical data from 70 patients who underwent single port laparoscopic cholecystectomy between May 2009 and June 2010 at Dong-A University Medical Center in Busan, Korea. The review includes the mean operating time, conversion cases, intra-operative GB perforation, post-operative wound infection and mean hospital stay.
Results: The mean operating time of the first 30 cases (the learning period) was 91.83 minutes. After 30 operations (the experience period), it plateaued to an average of 75.25 minutes, which remained steady in the next 40 operations - a reduction of more than 16%. Reduction in the operating time was significant (P<0.001) between the learning period and the experience period. Other factors including additional ports, intraoperative gall bladder perforation, mean hospital stay, post-operative wound infection were not significantly different between the two periods.
Conclusion: We suggest that the learning curve for single port laparoscopic cholecystectomy should be around thirty cases for a surgeon with prior conventional laparoscopic cholecystectomy experience and for self-taught single port technique.
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KEYWORD
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Single port laparoscopic cholecystectomy, Learning curve, Mean operating time, Cholecystitis
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