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Background:The introduction of an experienced dedicated team is not a completely studied fact. Several studies reported a high external cephalic version (ECV) success rate when the procedure is executed by a single operator or a dedicated team. This study aims to compare the effectiveness and safety of the ECV when the procedure is performed by senior experienced obstetricians or by super-specialized professionals who composed a dedicated team. Methods: Longitudinal retrospective analysis of ECV performed in a tertiary hospital. From 1 January 2018 to 1 October 2019, ECV were performed by two senior experienced obstetricians who composed the dedicated team for ECV, designed as Group A. From 1 October 2019 to 31 December 2019, ECV was performed by two seniors obstetricians, designed as Group B. Ritodrine was administered during 30 minutes just before the procedure. Propofol was used for sedation. Results: 186 pregnant women were recruited (150 patients in group A and 36 patients in group B). ECV success rate increased from 47.2% (31.7-63.2) in Group B to 74.0% (66.6-80.5) in Group A (p = 0.002). The greatest increase in the success rate of ECV was seen in nulliparae, from 38. 5% (21.8-57.6) in group B to 69.1% (59.4-77.6) (p = 0.004). Complications rate decreased from 22.2% (11.1-37.6) in Group B to 9.3% (5.5-14.8) in Group A (p = 0.032). Conclusions: The introduction of an experienced dedicated team improves ECV success rate, especially in primiparas, and it also reduces ECV complications rate.

Objective: Compare the effectiveness and safety of the ECV when the procedure is performed by senior experienced obstetricians or by super-specialized professionals who composed a dedicated team. Design: Longitudinal prospective analysis. Setting: 1st of January of 2018 and 31st of December of 2019. Population: Pregnant women with non-cephalic presentation and no contraindication for vaginal delivery. Methods: Longitudinal prospective analysis of ECV performed in a tertiary hospital. From 1/1st/2018 to 10/1st/2019, ECV were performed by two senior experienced obstetricians who composed the dedicated team for ECV, designed as Group A. From 10/1st/2019 to 12/31st/2019, ECV was performed by two seniors obstetricians, designed as Group B. Ritodrine was administered during 30 minutes just before the procedure. Propofol was used for sedation. Main Outcome Measures: ECV success rate, ECV complication rate, cesarean section 24 h after ECV. Results: 186 pregnant women were recruited (150 patients in group A and 36 patients in group B). ECV success rate increased from 47.2% (31.7-63.2) in Group B to 74.0% (66.6-80.5) in Group A. The greatest increase in the success rate of ECV was seen in nulliparae, from 38.5% (21.8-57.6) in group B to 69.1% (59.4-77.6). Complications rate decreased from 22.2% (11.1-37.6) in Group B to 9.3% (5.5-14.8) in Group A. Conclusions: The introduction of an experienced dedicated team improves ECV success rate, especially in primiparas, and it also reduces ECV complications rate. Funding: The authors received no financial support for the research, authorship, and/or publication of this article. Keywords: Sedation, Experience, ECV, Breech presentation