Anal incontinence after obstetrical anal sphincter injury significantly impacts quality of life for women: a cohort study.

PURPOSE: To assess the prevalence of anal incontinence (AI) after obstetrical anal sphincter injuries (OASIS) and its severity, as well as the risk factors for AI and AI episodes ≥ 6 months. METHODS: This prospective and observational monocentric cohort study included all the women who had an OASIS between 1 January 2005 and 31 December 2019. Information was collected by using a letter informing for the fecal incontinence quality of life (FIQL) questionnaire and by a phone interview. The main outcome measure was "1 passed or ongoing episode of AI". RESULTS: Among the 227 patients included, 19.8% had ongoing AI, and 35.2% had AI passed or ongoing episodes. A total of 46.7% of women with AI reported a change in their quality of life in all fields of the FIQL. Excluding a history of inflammatory bowel disease, no factor was associated with the incidence of an AI episode. Post-obstetrical AI ≥ 6 months (POAI ≥ 6) represented 63.7% of AI cases. This incontinence began with significant incidence in the immediate postpartum period but increased over time, unlike AI < 6 months, which appeared primarily in the immediate postpartum period. Instrumental birth was a protective factor for POAI ≥ 6 (OR = 0.24; CI 95% [0.08-0.78]; p = 0.016), while an increase in parity and BMI were risk factors for POAI ≥ 6 (OR = 4.21; CI 95% [1.01-17.71]; p = 0.05 and OR = 1.15; CI 95% [1.03-1.30]; p = 0.016, respectively). CONCLUSION: The prevalence of AI after OASIS is not underestimated. Despite the fact that women do not seek care, the impact of AI on the quality of life is significant. A case of AI that lasts for 6 months after giving birth risks becoming chronic. Therefore, specialist advice should be recommended in this case. CLINICAL TRIAL REGISTRY: NCT04940494.

Obstetrical anal sphincter injury and unnecessary episiotomy are both associated with anal incontinence 8 years after childbirth: A nationwide database analysis.

OBJECTIVE: To assess the relationship between anal incontinence (AI) 8 years after childbirth and the occurrence of obstetrical anal sphincter injuries (OASIS) and/or performance of an episiotomy during childbirth. METHODS: This is a nationwide database analysis performed on two national medico-administrative databases, including all the women aged 18 years or older who delivered infants in France in 2012. The main outcome measure was AI in the 8 years after delivery. RESULTS: Of the 163 443 perineal tears reported, 0.47% were grade 3 (n = 3173) and 0.08% were grade 4 (n = 579); 8938 women experienced AI (1.33%) and 261 women experienced severe AI (0.04%). Episiotomies performed in the absence of risk factors for OASIS were significantly associated with an increased risk of AI (odds ratio [OR] 1.59, 95% confidence interval [CI]1.49-1.69; P < 0.001). Grade 3 and 4 OASIS also significantly increased the risk of AI and severe AI. Mediolateral episiotomy was preventive of OASIS when performed in women at risk (OR 0.26, 95% CI 0.23-0.30; P < 0.001) but contributed to OASIS in the absence of risk (OR 2.18, 95% CI 1.98-2.40; P < 0.001). CONCLUSION: OASIS present a risk factor for AI. Episiotomies could reduce the occurrence of OASIS, but they could also increase the risk of long-term AI in the absence of risk factors for OASIS.