Roper JC, Thakar R, Sultan AH. Under-classified obstetric anal sphincter injuries. Int Urogynecol J. 2022 Feb 12. doi: 10.1007/s00192-021-05051-y.
Committee opinion
In the last decade, the topic of obstetric anal sphincter injuries (OASIS) is one of the most debated and interesting in the world of pelvic floor dysfunction.
It is well known that OASIS repair could be associated with favorable outcomes only if there is a correct diagnosis and ability to recognize these tears.
In this study, the authors showed that clinical evaluation underestimates more than 11% of anal sphincter injuries, subsequently diagnosed by ultrasound. It is very relevant to highlight that in this population, women with underestimated OASIs are associated with worse anorectal symptoms. This was due to an incomplete repair.