Prospective interventional study of simulation-based B-Lynch training for obstetrics and gynecology residents

To describe the development, implementation, and outcomes of a simulation-based educational intervention to teach the B-Lynch uterine compression suture technique to Obstetrics and Gynecology (OBGYN) residents.

This multicenter prospective interventional study included 217 residents across seven programs in São Paulo State, Brazil. The 130-min intervention comprised a theoretical module followed by supervised hands-on practice using a low-fidelity simulator. The outcomes were participants' reaction to the training and changes in knowledge and self-confidence regarding the indication and performance of the technique.

Most participants were in the first or second year of training (71.9%). While 88.5% reported previous knowledge about the B-Lynch technique and 56.2% had participated in at least one case that used the technique, only 12.9% had received prior structured training. Reaction to the intervention was highly positive, with more than 90% of participants reporting high satisfaction across evaluated domains. Knowledge scores increased significantly after training, from 60.3% to 85.7%, corresponding to an absolute gain of 25.4 percentage points (95% confidence interval [CI]: 22.9-27.9; P < 0.001). The proportion of residents who did not feel confident about the indication and the performance of the technique decreased significantly after the intervention (65.9% vs. 5.1%, and 71% vs. 7.0%, respectively, P < 0.001).

A short simulation-based educational intervention using a low-fidelity simulator was well accepted and significantly improved the knowledge and self-confidence of OBGYN residents in performing the B-Lynch technique.