Am J Obstet Gynecol MFM 2021 Jun 12:100421. Epub 2021 Jun 12.
Department of Obstetrics, Gynecology, and Neonatology, Sydney Medical School Nepean, University of Sydney, Kingswood, New South Wales, Australia.
This review presents the available data on the diagnosis of obstetric anal sphincter injury (OASI) by postnatal ultrasound imaging. There is increasing evidence that anal sphincter tears are often missed after childbirth and, even when diagnosed, often sub- optimally repaired, with a high rate of residual defects after reconstruction. Even after postpartum diagnosis and primary repair, 25-50% of patients will have persistent anal incontinence (AI). Read More