Medical providers should improve counseling about anal cytology screening among at-risk women to familiarize them with the procedure, describe its role in detecting anal neoplasia, and address expectations surrounding pain to increase its acceptability.

Objectives:The aim was to compare the rates of spontaneous preterm birth between obese patients and non-obese patients with no other known risk factors for prematurity. The results were subsequently correlated to the cervical length measurement. Methods: Retrospective cohort study from 2008-2013 for patients that had a cervical length measured from 16 to 24 weeks of pregnancy. Maternal demographic characteristics and pregnancy outcomes were analysed. Inclusion criteria: women with singleton pregnancies who delivered at our hospital and had the electronic records available. Exclusion criteria: any risk factor associated to preterm birth. Standard statistical methods were used to report the outcomes of the charts that were evaluated. Results: 856 patients had chart reviewed. 66.5% of the patients were African-American and 47% met the criteria for obesity (average BMI was 38.8). 16.5% of non-obese patients had a premature delivery compared to 17.4% of the obese patients group (p = 0.23). Morbidly obese patient had an increased risk of preterm delivery compared to non-obese (p < 0.05). Among obese patients who had short cervix, 88.2% had premature deliveries while obese patients with a normal cervical length had 19.8% of premature deliveries (p < 0.01). Comparing preterm delivery predicted by short cervix between obese and non-obese patients didn't show significance (p = 0.62). Conclusions: Studies have been associating maternal obesity as an independent risk factor for preterm deliveries. Our study found a significant difference on the morbidly obese group. Short cervix was associated with an increased rate of preterm delivery, however it couldn't predict outcomes when comparing obese versus non-obese patients. Prematurity rates were higher in our population compared to US rates. Obesity increases the risk of medically indicated preterm delivery; whether obesity influences the risk of spontaneous preterm delivery is less clear and further studies should be designed to better evaluate this potential association. EP01.08Comparing clinical effectiveness of 2nd trimester cervical length for the detection of patients at risk of preterm birth in two referral centres Results: A total of 93 women were analysed; 31 women had emergent Caesarean delivery due to massive vaginal bleeding. Case group had abrupt cervical change during early third trimester compared with control group. On univariate analysis, hospitalisation, cervical change between 2 nd and third trimester and nulliparity were significantly associated with emergent Caesarean delivery. On multivariate analysis after adjusted by maternal age, hospitalisation, placenta totalis, ant placenta, cervical change, nulligravidity, nulliparity, previous Caesarean delivery, previous preterm delivery, only hospitalisation, cervical change remained significantly associated with emergent Caesarean delivery. Analyses of the ROC curve showed that cervical change could be the predictor of emergent Caesarean delivery (area under the curve 0.676, p = 0.041) with optimal cutoff for p...

A 23-year-old primigravida presented seeking termination of pregnancy at 11 weeks and 2 days, dated by ultrasound consistent with last menstrual period. It was a medically indicated procedure with significant morbidity due to her past medical history of severe arteriovenous malformations in the liver, portal system, pelvis, and rectum. She had a history of prior venous thrombosis of the gastrointestinal tract, portal hypertension status post shunt placement, and had several dozen treatments of sclerotic therapy and blood transfusions to date. Multiplanar magnetic resonance arteriography and venography with contrast was performed.An extensive heterogeneous pelvic mass, with a predominantly high T2 signal, had characteristics suggestive of a low-flow malformation (Figure 1). The mass was causing significant mass effect on all pelvic structures (Figure 2), including superior and right sided displacement of the bowel, with displacement of the gravid uterus to the left and out of the pelvis. The mass surrounded adjacent bowel and uterus without direct invasion or cystic characteristics, and it was presumed to be a low-flow malformation without significant arteriovenous shunting.Based on the severity of the malformations, the patient would not have been able to carry the pregnancy to term without risk of severe bleeding or mortality. The termination and placement of an immediate post-