S.S. Chan

Pelvic floor biometry during a first singleton pregnancy and the relationship with symptoms of pelvic floor disorders: a prospective observational study

To assess pelvic floor biometry during pregnancy and the correlation with symptoms of pelvic floor disorders in women.

Levator ani muscle avulsion is a risk factor for expulsion within 1 year of vaginal pessary placed for pelvic organ prolapse

The aim of this study was to investigate whether the presence of levator ani muscle (LAM) avulsion is associated with expulsion within 1 year of a vaginal pessary placed for pelvic organ prolapse (POP).

Health-related quality-of-life questionnaire for women with polycystic ovary syndrome: a Chinese translation and validation study.

To evaluate the reliability, validity, and responsiveness of the Chinese version of the polycystic ovary syndrome questionnaire (PCOSQ).

OP34.07: Levator ani muscle injury after first delivery in Chinese primiparous women

Objectives: Vaginal delivery has been identified as risk on pelvic floor; 18–35% of Caucasian women having their first vaginal delivery were found with levator ani muscle injury (LAM). Variation in pelvic connective tissue quality was found between ethnicity. This study aims at examining the prevalence of LAM injury after vaginal delivery in primiparous Chinese women. Methods: Nulliparous Chinese women with singleton pregnancies were recruited. Trans-labial 3D-ultrasound at 35–38 weeks of gestation and 8 weeks post-delivery were performed at rest and at pelvic floor contraction. Demographic and delivery data were collected and the mode of delivery determined by Obstetric indications. Two investigators blinded to the information reviewed the volume data set and searched in its entirety of the continuity of the V-shape LAM. Defects were identified when a loss of continuity within the pubovisceral muscle was visualised. Results: 282 women completed the study, 219 (77.7%) had vaginal delivery including 42 vacuum extractions and 9 forceps; 63 (22.3%) had Caesarean sections (11 elective and 52 emergency). No LAM injury was found antenatally and in the postnatal Caesarean section group. 56 women (25.6%) had LAM injury after vaginal delivery (18 bilateral and 38 unilateral). Instrumental delivery and longer duration of second stage of labour were found statistically associated with LAM injury (Table 1). Conclusions: 25.6% of primiparous Chinese women had levator ani muscle injury after their first vaginal delivery.

P12.01: Pelvic floor biometry after the delivery in Chinese primiparous women

Results: Thirty-eight women were diagnosed of Cesaeran scar defect at TUS. The number of previous Caesarean sections in patients with uterine dehiscence and ectopic pregnancy in Cesarean scar is shown in Table 1. Eleven patients (29%) showed a uterine dehiscence. Seven cases were repaired by laparoscopy and 4 cases required hysterectomy. Five ectopic pregnancies (13%) were diagnosed at TUS. Two patients required hysterectomy, 2 were treated with local methotrexate guided by TUS and 1 was surgically sutured. Two patients (5%) had a complete uterine rupture. One of them diagnosed 6 months after Cesarean section and required hysterectomy. The other which was diagnosed during puerperium period was treated by surgical repair. Conclusions: TUS is useful for detecting Cesarean scar defects providing information for a treatment in case of complications.

OP13.02: Pelvic floor biometries during the first singleton pregnancy in Chinese nulliparous women

Objectives: This study aims at evaluating the pelvic floor biometries during the first pregnancy of Chinese nulliparous women. The relationship with pelvic floor symptoms was also explored. Methods: Nulliparous Chinese women with singleton pregnancies were recruited. They were assessed at 10–13 weeks, 26–28 weeks and 35–38 weeks of gestation. Trans-labial 3D-ultrasound was performed at rest, Valsalva maneuver (VM) and pelvic floor contraction (PFMC) during each visit. Stress urinary incontinence, urgency urinary incontinence and dragging discomfort were also asked during each visit. Offline analysis of USG volume data sets were done by an investigator blinded to the information. Position of the anterior compartment (bladder neck vertical position), middle compartment (most inferior part of cervix) and posterior compartment (ano-rectal junction) and the hiatal dimensions were measured in a standard way. Results: In all, data of 187 women were reported here. Their mean age was 30.4 ± 4.0 years. There were significant descent of all three compartments and enlargement of hiatal area during rest, VM or PFMC as the pregnancy advanced. At second and third trimester, 54 (29%) and 60 (32%) women reported stress urinary incontinence, but there was no association with the bladder neck mobility. And 41 (22%) and 60 (32%) reported symptoms of dragging sensation but there was no association with the hiatal area. Conclusions: There were significant changes of pelvic floor biometries with descent of three compartments at rest, at VM and PFMC as pregnancy advanced. Stress urinary incontinence and dragging sensation were common during pregnancy; however, both were not associated with parameters of pelvic floor biometries.