Medical illustration: a pictorial essay visual illustration of obstetric anal sphincter injuries (OASIS) degrees of severity, a picture is worth a thousand words
J. coloproctol. (Rio J., Impr.); 44 (2), 2024
Obstetric anal sphincter injury affects about 5.7% of primiparous women who deliver vaginally. Perineal injury during childbirth is a common event with important morbidity associated with third-and-fourth degree perineal tears (also referred to as obstetric anal sphincter injuries -OASIS). As there was a...