Characteristics of learning curve in minimally invasive ileal pouch-anal anastomosis in a single institution.

BACKGROUND: Previous work from our institution has characterized the learning curve for open ileal pouch-anal anastomosis (IPAA). The purpose of the present study was to assess the learning curve of minimally invasive IPAA. METHODS: Perioperative outcomes of 372 minimally invasive IPAA by 20 surgeons (10 high-volume vs. 10 low-volume surgeons) during 2002-2013, included in a prospectively maintained database, were assessed. Predicted outcome models were constructed using perioperative variables selected by stepwise logistic regression, using Akaike's information criterion. Cumulative sums (CUSUM) of differences between observed and predicted outcomes were graphed over time to identify possible improvement patterns. RESULTS: Institutional pelvic sepsis and other pouch morbidity rates (hemorrhage, anastomotic separation, pouch failure, fistula) significantly decreased (18.2 vs. 7.0 %, CUSUM peak after 143 cases, p = 0.001; 18.4 vs. 5.3 %, CUSUM peak after 239 cases, respectively, p < 0.001). Institutional total proctocolectomy mean operative times significantly decreased (307 min vs. 253 min, CUSUM peak after 84 cases, p < 0.001), unlike completion proctectomy (p = 0.093) or conversion rates (10 vs. 5.4 %, p = 0.235). Similar learning curves were identified among high-volume surgeons but not among low-volume surgeons. Learning curves were identified in the two busiest individual surgeons for pelvic sepsis (peaks at 47 and 9 cases, p = 0.045 and p = 0.002) and in one surgeon for operative times (CUSUM peak after 16 and 13 cases for both total proctocolectomy and completion proctectomy (p < 0.001 and p = 0.006) but not for other pouch complications (peak at 49 and 41 cases, p = 0.199 and p = 0.094). CONCLUSION: Pouch complications, particularly pelvic sepsis, are the most consistent and relevant learning curve end points in laparoscopic IPAA.

Establishing a robotic colorectal surgery programme.

BACKGROUND: This paper aimed to describe the training available and the process taken to establish a robotic colorectal surgery programme in a large Australian academic private hospital. Through this we hope to guide other surgeons and hospitals planning to introduce this technology in circumstances where such guidelines do not exist. METHODS: The available training and credentialing pathways are described, including the da Vinci Surgery Training Pathway provided by Intuitive Surgical and hospital-based supports. A proposed 9-point training and credentialing pathway is presented, along with the activities undertaken by each surgeon. RESULTS: From December 2011 to December 2013, 48 robotic colorectal procedures were performed at the Cabrini Hospital. Operations performed were as follows: 23 anterior resections, seven abdominoperineal resections, 11 rectopexies, three proctectomies and ileal pouch-anal anastomosis and four right hemicolectomies. There have been no conversions, and no major complications. There were no robot-specific complications. CONCLUSION: We believe that this thorough and methodical approach to introducing robotics to colorectal surgery has been safe and effective, and should be applicable to other surgeons and hospitals wishing to introduce robotic technology to colorectal surgery.

Combination of hand-assisted and laparoscopic proctocolectomy (HALP): Technical aspects, learning curve and early postoperative results.

BACKGROUND: Various techniques for laparoscopic proctocolectomy have been reported worldwide. We evaluated the technical aspects and early postoperative results of hand-assisted laparoscopic proctocolectomy (HALP) with construction of an ileal pouch-anal anastomosis through a Pfannenstiel incision. PATIENTS AND METHODS: Between June 2004 and May 2006, 20 patients (median age 28 years) underwent combined HALP at our institution. Preoperative diagnosis included ulcerative colitis (n = 16), indeterminate colitis (n = 1), familial adenomatous polyposis (n = 2), and carcinoma of the rectum associated with ulcerative colitis (n = 1). All patients were under immunosuppressive therapy. Laparoscopic mobilisation of rectum, sigmoid and descending colon was performed first. Subsequently, hand-assisted laparoscopic mobilization of the transverse and ascending colon as well as creation of an ileal J-pouch were performed through a Pfannenstiel incision. Ileal pouch-anal anastomosis was completed by transrectal stapling device and protected by a loop ileostomy. RESULTS: The ileal pouch-anal anastomosis could be achieved in 19 cases (95%). There was one conversion (5%) to open surgery with construction of an end-ileostomy. No intraoperative blood transfusions were necessary. The median operating time was 210 minutes (range 180 min to 330 min). It was longer for the first five procedures but then remained constant. Two patients (10%) developed anastomotic leakage, which could be treated conservatively. Mean length of hospital stay was 11 days (range 7-32 days). CONCLUSIONS: Combined HALP with construction of an ileal J-pouch-anal anastomosis can be performed safely and effectively. The Pfannenstiel incision proved to be advantageous for hand-assisted mobilisation of the transverse colon. Additionally, it was useful for the specimen removal and the J-pouch construction. Our new technique not only proved to be safe, but also resulted in a shortened total operation-time after a learning curve of about five procedures.

Evaluating learning and knowledge retention after a continuing medical education course on total mesorectal excision for surgeons.

The purpose of this study was to determine whether knowledge gained (as determined by a formal course test) by surgeons in a continuing education course on total mesorectal excision and rectal cancer management is retained 1 year later. A formal course test had been previously developed and validated. The test evaluated course content including pelvic anatomy, surgical techniques, imaging, pathology, adjuvant therapies, and cancer and functional outcomes. Validation was determined by the absence of change in pre- and posttest scores of the "expert" course instructors (n = 8, P = .6) and by a linear correlation in test scores with increasing level of general-surgery resident training (n = 16, P = .001). Significant learning by the 58 surgeons taking the course had been shown by improvement in test scores from before the course (mean score 19) to after the course (mean score 25.3, P = .001, out of a possible 33 total mark). At 1 year after the course, those course participants (n = 44, 76%) who had provided postcourse contact information were asked to complete the course test again. Responses were received from 18 surgeons (41% of those surveyed, 31% of the original course participants). The mean score on the test after 1 year was 23.8. Compared with the immediate posttest scores, there was no significant knowledge loss over the year (P = .09). We conclude that knowledge acquired during a continuing education course for surgeons on total mesorectal excision and rectal-cancer management is retained 1 year later.

Total mesorectal excision training in soft cadaver: feasibility and clinical application.

BACKGROUND: The major problem in the treatment of rectal cancer is local recurrence. After the introduction of total mesorectal excision (TME), the recurrent rate decreased from 100% to around 10%. OBJECTIVE: The purpose of the present study was to evaluate the quality of organ and tissue plane preservation in soft cadaver and to assess the feasibility to perform the procedure (mobilization of colon and rectum, total mesorectal excision and stapler anastomosis) in soft cadaver. SETTING: Colorectal Division, Department of Surgery and Surgical Training Center Department of Anatomy, Faculty of Medicine, Chulalongkorn University. STUDY DESIGN: Prospective descriptive study. MATERIAL AND METHOD: Seven soft cadavers were used for total mesorectal excision (TME) training. These procedures were performed by 21 participants (1 soft cadaver for 3 participants). The procedures were done under the supervision of experienced colorectal surgeons. The successfulness, satisfaction in performing the procedure and the quality of organ preservation were evaluated using standardized questionnaires. RESULTS: Participants were satisfied about TME training in soft cadaver (mean 8.24-8.71) and rated that soft cadavers were good in terms of internal organs and tissue plane preservation (mean 7.19-8.19) (0 = extremely unsatisfied, 10 = extremely satisfied). CONCLUSION: Training of TME in soft cadaver is feasible. The similarity in tissue quality (texture, consistency, color) of the preserved organs to that of the living and the good feel of performing the procedure make the trainee better understand the techniques and improve their skills.

The new laparoscopic proctocolectomy training (in soft cadaver).

OBJECTIVES: The purpose of the present study was to evaluate the quality of preservation (tissue plane, named vessels identification, consistency of colon and rectum), quality of performing procedures, difficulties and problems and finally the satisfaction of surgeons in laparoscopic proctocolectomy in soft cadaver. SETTING: Colorectal Division, Department of Surgery and Surgical Training Center Department of Anatomy, Faculty of Medicine, Chulalongkorn University. DESIGN: Prospective descriptive study MATERIAL AND METHOD: 10 soft cadavers were scheduled for laparoscopic proctocolectomy. The procedures (colon-rectum mobilization and named vessels identification) were performed by 14 experienced surgeons (8 colorectal surgeons) and assisted by surgical residents. The quality of preservation, successfulness and the satisfaction in performing the procedures were recorded using questionnaires for evaluation. RESULTS: The preservation was very good in every aspect especially tissue plane between colon, mesocolon and retroperitoneum which was clearly dissected, same asfasciapropria of rectum. The named vessels and the tissue consistency were very well preserved and tolerated to laparoscopic equipment handling. The surgeons were satisfied with the tissue handling and dissections. There were two difficulties, the first was air leakage but simply corrected with purse string suture and the second was unflavored smell which was not concerned. Laparoscopic proctocolectomy could be completely performed in soft cadaver. CONCLUSION: Laparoscopic proctocolectomy could be performed in soft cadavers with great satisfaction. Repeated practice is possible, so the surgeons can gain their experiences outside the operating theatre. This success may shorten the learning curve and may be the new era in cadaver-based training.