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August 20, 2025Obstetric Anesthesia Digest

Obstetric anal Sphincter Injuries During Instrumental Vaginal Delivery: An Observational Study Based on 18 Years of Real-world Data

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Authors

KFKathrine FodstadVestre Viken Hospital Trust KLKatariina LaineOslo University Hospital SRSari RäisänenLaurea University of Applied Sciences

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Implication

Observational study examines the prevalence of obstetric anal sphincter injuries in instrumental vaginal deliveries, suggesting episiotomy may influence outcomes.

Key Points

OASIS incidence decreased significantly in Norway since 2005 due to a national care bundle for vaginal delivery.
Third-degree and fourth-degree perineal lacerations occurred more frequently in forceps compared to vacuum deliveries, emphasizing risks associated with instrumental delivery.
The study utilized 18 years of real-world data to analyze trends, highlighting the importance of episiotomy type on injury rates.
Results suggest protective measures like mediolateral and lateral episiotomies are significant in reducing OASIS during operative vaginal delivery.

Cite This Study

Fodstad et al. (2025) studied this question.

synapsesocial.com/papers/68af4cd8ad7bf08b1ead627d https://doi.org/10.1097/01.aoa.0001125560.29275.e9

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Implication

Observational study examines the prevalence of obstetric anal sphincter injuries in instrumental vaginal deliveries, suggesting episiotomy may influence outcomes.

Obstetric anal Sphincter Injuries During Instrumental Vaginal Delivery: An Observational Study Based on 18 Years of Real-world Data

Discussion

Member takes

Implication

Key Points

Cite This Study

Obstetric anal Sphincter Injuries During Instrumental Vaginal Delivery: An Observational Study Based on 18 Years of Real-world Data

Discussion

Member takes

Implication

Key Points

Cite This Study

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