Incidence and risk factors for severe perineal laceration after vaginal delivery in Japanese patients

Archives of Gynecology and Obstetrics
Akihito NakaiToshiyuki Takeshita

Abstract

The aim of this study was to assess the frequency of severe perineal lacerations defined as either third- or fourth-degree lacerations during normal spontaneous vaginal delivery and to evaluate potential risk factors in Japanese patients. An electronic audit of the perinatal database at the Tama-Nagayama Hospital of Nippon Medical School and Yamaguchi Hospital from 1997 through 2004 was completed. Singleton vaginal vertex deliveries were analyzed for potential risk factors using univariate and multivariate logistic regression analysis. From the database, 7,946 deliveries were identified, with 135 deliveries resulting in severe lacerations (1.7%). In the multivariate logistic regression analysis, severe lacerations were associated significantly with primiparous (odds ratio, 4.36; 95% CI, 2.17-9.57), oxytocin use (odds ratio, 2.19; 95% CI, 1.27-3.73), midline episiotomy (odds ratio, 4.68; 95% CI, 2.09-11.55), forceps-assisted delivery (odds ratio, 7.11; 95% CI, 1.95-20.59), vacuum-assisted delivery (odds ratio, 5.93; 95% CI, 3.38-10.36), and shorter attendant experience (odds ratio, 2.88; 95% CI, 1.12-9.81). The present study demonstrated that operator factors, such as midline episiotomy, oxytocin use, assisted delivery and atten...Continue Reading

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Citations

Mar 6, 2009·Archives of Gynecology and Obstetrics·Koji MatsuoKoichiro Shimoya
Apr 1, 2009·Archives of Gynecology and Obstetrics·Amadeus HornemannMichael K Bohlmann
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Mar 17, 2015·Women and Birth : Journal of the Australian College of Midwives·Haiying WangJane Warland
Nov 6, 2009·American Journal of Obstetrics and Gynecology·Shunji Suzuki, Misao Satomi
Dec 25, 2010·American Journal of Obstetrics and Gynecology·Asnat GroutzDavid Gordon
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Jan 28, 2022·Female Pelvic Medicine & Reconstructive Surgery·Angel R Gonzalez RiosVincent Lucente

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