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  • Title: Clinical value of transperineal ultrasound in evaluating the effects of different delivery methods on the primipara pelvic floor structure and function.
    Author: Cai S, Xia M, Ding Y, Zeng L.
    Journal: Sci Rep; 2024 Oct 14; 14(1):23980. PubMed ID: 39402151.
    Abstract:
    To evaluate the effects of different delivery methods on the pelvic floor structure and function among primiparas by transperineal ultrasound, with a view to providing guidance for early postpartum intervention. Primiparas who underwent postpartum examination with transperineal ultrasound were recruited. Subjects were divided according to mode of delivery (vaginal and cesarean delivery). General information (including age, pre-pregnancy BMI and neonatal weight) were collected, and transperineal ultrasound was performed to measure such indicators as the levator hiatus areas in resting, constrictive anal and maximum Valsalva states, the posterior vesicourethral angles and distances between vesical neck and posterior inferior margin of pubic symphysis in resting and maximum Valsalva states, as well as the vesical neck mobility and urethral rotation angle in maximum Valsalva state. The inter-group differences in ultrasound indicators between the resting and Valsalva states were compared to analyze the postpartum incidences of pelvic floor dysfunctions like stress urinary incontinence, urethral funnel formation, bladder prolapse and uterine prolapse in primiparas. The levator hiatus areas in resting, constrictive anal and maximum Valsalva states were all larger in the vaginal delivery group than in the cesarean delivery group (P < 0.05). Compared to the cesarean delivery group, the vaginal delivery group exhibited larger posterior vesicourethral angles in resting and maximum Valsalva states (P < 0.05). The distances between vesical neck and posterior inferior margin of pubic symphysis were greater in the cesarean delivery group than in the vaginal delivery group at both resting and maximum Valsalva, with that at maximum Valsalva showing significant inter-group difference (P < 0.05). The vaginal delivery group exhibited greater vesical neck mobility and urethral rotation angle at maximum Valsalva compared to the cesarean delivery group (P < 0.05). The incidences of stress urinary incontinence, urethral funnel formation, bladder prolapse and uterine prolapse were all higher in the vaginal delivery group than in the cesarean delivery group, with the stress urinary incontinence and bladder prolapse incidences showing significant inter-group differences (P < 0.05). With transperineal ultrasound, various pelvic floor indicators of primiparas can be clearly measured and, through these ultrasound indicators, the effects of different delivery methods on the pelvic floor function can be evaluated, which is conducive to early clinical detection and intervention of postpartum pelvic floor dysfunctions, thus facilitating the early postpartum treatment.
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