Structured hands-on workshop decreases the over-detection rate of obstetrical anal sphincter injuries

Haim Krissi*, Amir Aviram, Liran Hiersch, Eran Ashwal, Ram Eitan, Yoav Peled

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: The purpose of this study was to assess the effect of a structured hands-on workshop on the detection rate of obstetric anal sphincter injuries. Methods: All physicians attending the delivery ward in our institution participated in a structured obstetric anal sphincter injury hands-on workshop developed by Dr. Ranee Thakar and Dr. Abdul Sultan which demonstrated proper identification and techniques for obstetric anal sphincter injury detection and repair. We retrospectively reviewed the electronic records of all singleton-pregnancy women who delivered vaginally (vertex presentation) during the 2 years prior to and 1 year following the workshop to assess the workshop’s effect on the rate of detection of obstetric anal sphincter injuries. Results: Overall, 20,484 women met the inclusion criteria during the study period and were eligible for final analysis. There were no significant differences in patient’s characteristics between the groups. Women in the pre-workshop group had a higher rate of obstetric anal sphincter injuries than the post-workshop group (0.4 vs. 0.2 %, p = 0.005). On multivariate analysis, factors independently associated with a decreased risk for obstetric anal sphincter injuries were deliveries in the post-workshop period (odds ratio 0.43, 95 % confidence interval 0.24–0.79, p = 0.006), parity (odds ratio 0.37, 95 % confidence interval 0.25–0.54, p < 0.001), and spontaneous vaginal delivery (odds ratio 0.43, 95 % confidence interval 0.26–0.71, p = 0.001). Conclusions: A proper detection of obstetric anal sphincter injuries may depend on the experience of the assessor. A structured hands-on workshop is important to avoid over diagnosis third-degree perineal tears.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
JournalInternational Journal of Colorectal Disease
Volume31
Issue number1
DOIs
StatePublished - 1 Jan 2016

Keywords

  • Anal sphincter
  • Delivery
  • Perineal tears

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