Prevention of obstetric anal sphincter injuries with perineal support and lateral episiotomy: A historical cohort study.

Further, a wide angle was associated with lower rate of OASIS but the difference did not reach statistical significance. 36 Another study did not find more short‐ or long‐term pain when a lateral incision was used. 14 , 37 One study has shown a great variation in self‐reported episiotomy, 25 and we do not know if all episiotomies in our unit fulfilled the criteria for being lateral, but we believe that the incisions are more lateral than they were before the training program started.

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