Pelvic floor function and advanced maternal age at first vaginal delivery

Mikako Yoshida, Ryoko Murayama, Maki Nakata, Megumi Haruna, Masayo Matsuzaki, Mie Shiraishi, Hiromi Sanada

Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Department of Midwifery and Women’s Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Department of Obstetrics and Gynecology, Mitsui Memorial Hospital, Tokyo, Japan.

DOI: 10.4236/ojog.2013.34A005                

Abstract

Purpose: The study aimed to show differences in temporal recovery of pelvic floor function within 6 months postpartum between women having their first delivery at an advanced age and those having their first delivery at a younger age. Methods: Seventeen women (age: 35.5 ± 3.5, BMI: 21.1 ± 3.2) were studied at about 6 weeks, 3 months, and 6 months after vaginal delivery. Urinary incontinence was assessed by the International Consultation on Incontinence Questionnaire-Short Form. Pelvic floor function was assessed by the anteroposterior diameter of the levator hiatus using transperineal ultrasound. Women who delivered for the first time at 35 years and/or older were defined as being of advanced maternal age. Results: Nine of 17 women (52.9%) were of advanced maternal age and 5 experienced postpartum stress urinary incontinence. Four of these 5 women (80.0%) were of advanced maternal age. The anteroposterior diameter of the levator hiatus at rest was significantly greater in the advanced maternal age women than in the younger maternal age women at 3 and 6 months postpartum (p < 0.01). Among the continent women, the anteroposterior diameter of the levator hiatus at rest was significantly greater in the advanced maternal age women than in the younger maternal age women at 6 months postpartum (p = 0.004). However, among the advanced maternal age women, all parameters of the anteroposterior diameter of the levator hiatus were not significantly different between the women with and without stress urinary continence. Conclusion: Recovery of pelvic floor function following delivery may be delayed in women of advanced maternal age at first delivery because of the damage to the pelvic floor during pregnancy and vaginal delivery, resulting in increase in the incidence of stress urinary incontinence.

Keywords

Advanced Maternal Age; Pelvic Floor; Stress Urinary Incontinence; Ultrasound; Vaginal Delivery

Conflicts of Interest

The authors declare no conflicts of interest.

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