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Erschienen in:
12.03.2018 | Original Article
Impact of subsequent pregnancies on pelvic floor functional anatomy
Erschienen in: International Urogynecology Journal | Ausgabe 10/2018
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Introduction and hypothesis
Vaginal childbirth clearly has an effect on pelvic floor anatomy, and pregnancy itself also likely plays a role. This study investigated the effects of consecutive pregnancies by comparing pelvic organ support and function in urogynecological patients delivered by cesarean section (CS) only.
Methods
This was a retrospective study using 161 archived data sets of urogynecological patients delivered exclusively by CS presenting with symptoms of pelvic floor dysfunction between 2007 and 2015. Patients had undergone an interview, clinical examination using the Pelvic Organ Prolapse Quantification (POP-Q) system, and 3D/4D translabial ultrasound (TLUS) using Voluson systems. Measures of functional pelvic floor anatomy were obtained from stored ultrasound (US) volumes at a later date, using proprietary software, and blinded against all other data.
Results
One hundred and sixty-one women delivered exclusively by CS were seen in a urogynecological clinic. Volume data analysis was possible in 151 patients. Mean age was 52 (26–82) years, with a mean body mass index (BMI) of 29.5 (18.4–48.7) kg/m2. Forty-three (28.5%) women had one CS, 67 (44.4%) had two, and 41 (27.1%) had three or more. On multivariate analysis, adjusting for age, BMI, history of hysterectomy, and incontinence or prolapse surgery, there were no significant differences between groups.
Conclusions
On comparing women with one, two, or three or more CS, we found no significant differences in any measured sonographic parameters of pelvic organ descent and pelvic floor muscle function. This implies that subsequent pregnancies after the first are unlikely to exert significant additional effects on pelvic floor functional anatomy.