• Emil K Nüssler, Mats Löfgren, Håkan Lindkvist, and Annika Idahl.
• Department of Clinical Sciences, Obstetrics and Gynecology, Umeå University, Umeå, Sweden.
• Acta Obstet Gynecol Scand. 2021 Mar 1; 100 (3): 471-479.

IntroductionTo reduce the risk of avoidable damage to the patient when training surgeons, one must predefine what standards to achieve, as well as supervise and monitor trainees' performance. The aim of this study is to establish a quality reference, to devise comprehensive tension-free vaginal tape (TVT) learning curves and to compare trainees' results to our quality reference.Material And MethodsUsing the Swedish National Quality Register for Gynecologic Surgery, we devised TVT learning curves for all Swedish TVT trainees from 2009 to 2017, covering their first 50 operations. These outcomes were compared with the results of Sweden's most experienced TVT surgeons for 14 quality variables.ResultsIn all, 163 trainees performed 2804 operations and 40 experienced surgeons performed 3482 operations. For our primary outcomes - perioperative bladder perforations and urinary continence after 1 year - as well as re-admission, re-operation and days to all daily living activities, there was no statistically significant difference between trainees and experienced surgeons at any time. For the first 10 trainee operations only, there were small differences in favor of the experienced surgeons: patient-reported minor complications after discharge (14% vs 18.4%, P = .002), 1-year patient-reported improvement (95.9% vs 91.8%, P < .000), and patient satisfaction (90.9% vs 86.2%, P = .002). For both trainee operations 1-10 and 11-50, compared with experienced surgeons, operation time (33.8 vs 22.2 min, P < .000; 28.3 vs 22.2 min, P < .000) and hospital stay time (0.16 vs 0.06 days, P < .001; 0.1 vs 0.06 days, P < .001) were longer, perioperative blood loss was higher (27.7 vs 24.4 mL, P = .001; 26.5 vs 24.4 mL, P = .004), and patient-reported catheterization within 8 weeks was higher (3.9% vs 1.8%, P < .000; 2.5% vs 1.8%, P = .001). One-year voiding difficulties for trainee patients (operations 1-10:14.2%, P = .260; operations 11-50:14.5%, P = .126) were comparable to the experienced surgeons (12.4%).ConclusionsThere is a learning curve for several secondary outcomes but the small effect size makes it improbable that the difference has clinical significance. Our national Swedish results show that it is possible to train new TVT surgeons without exposing patients to noteworthy extra risk and achieve results which are equivalent to the most experienced Swedish surgeons.© 2020 The Authors. Acta Obstetricia et Gynecologica Scandinavica published by John Wiley & Sons Ltd on behalf of Nordic Federation of Societies of Obstetrics and Gynecology (NFOG).

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