RESUMO
Aim: to compare between the prevalence of obstetric anal sphincter injury [OASIS] after cutting mediolareral episiotomy by angled, curved or straight scissors in women in labour
Methods: the current randomized controlled trial was conducted at Ain Shams University Maternity Hospital. The participating women were randomly allocated into three arms. Arm [A]: women had mediolateral episiotomy cut by angled scissors. Arm [c]: women had mediolateral episiotomy cut by curved scissors .Arm [s]: women had mediolateral episiotomy cut by straight scissors. Primary outcome was the occurrence of Obstetric Anal Sphincter Injuries [OASIS]
Results a total of 300 primiparous women were included. The overall incidence of OASIS was 5%, 17% and 15 % in arm A,C and S respectively
Conclusion: using angled scissors in cutting mediolateral episiotomy results in less cases of obstetric anal sphincter injury compared to cutting episiotomy by straight or curved scissors