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BJOG ; 128(4): 685-693, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32770616

RESUMO

OBJECTIVE: To determine whether planned caesarean section (CS) for a second delivery protects against anal incontinence in women with obstetric anal sphincter lesions. DESIGN: Randomised trial. SETTING: Six maternity units in the Paris area. SAMPLE: Women at high risk of sphincter lesions (first delivery with third-degree laceration and/or forceps) but no symptomatic anal incontinence. METHODS: Endoanal ultrasound was performed in the third trimester of the second pregnancy. Women with sphincter lesions were randomised to planned CS or vaginal delivery (VD). MAIN OUTCOME MEASURES: Anal incontinence at 6 months postpartum. Secondary outcomes were urinary incontinence, sexual morbidity, maternal and neonatal morbidities and worsening of external sphincter lesions. RESULTS: Anal sphincter lesions were detected by ultrasound in 264/434 women enrolled (60.8%); 112 were randomised to planned VD and 110 to planned CS. At 6-8 weeks after delivery, there was no significant difference in anal continence between the two groups. At 6 months after delivery, median Vaizey scores of anal incontinence were 1 (interquartile range 0-4) in the CS group and 1 (interquartile range 0-3) in the VD group (P = 0.34). There were no significant differences for urinary continence, sexual functions or for other maternal and neonatal morbidities. CONCLUSIONS: In women with asymptomatic obstetric anal sphincter lesions diagnosed by ultrasound, planning a CS had no significant impact on anal continence 6 months after the second delivery. These results do not support advising systematic CS for this indication. TWEETABLE ABSTRACT: Caesarean section for the second delivery did not protect against anal incontinence in women with asymptomatic obstetric anal sphincter lesions.


Assuntos
Canal Anal/lesões , Cesárea , Incontinência Fecal/prevenção & controle , Complicações do Trabalho de Parto , Adulto , Canal Anal/diagnóstico por imagem , Doenças Assintomáticas , Incontinência Fecal/etiologia , Feminino , Seguimentos , Humanos , Complicações do Trabalho de Parto/diagnóstico por imagem , Gravidez , Estudos Prospectivos , Resultado do Tratamento , Ultrassonografia
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