PP.76 Use of Ultrasound in Management of Obesity in Pregnancy – Current Practise in the West of Scotland

Abstract

For a 3-month period, a prospective audit of management of obesity in pregnancy was undertaken in Glasgow and Clyde maternity hospitals. Two hundred and fourteen women were identified out of a total of 3,834 deliveries during the study period: 76 (36{%}) had a booking body mass index (BMI) ≥40 and 138 (64{%}) had a BMI of 35-39. One hundred and ninety-nine women (93{%}) underwent fetal structural scan to screen for anomalies. Out of these, 168 (84{%}) had it performed at recommended time period of 18-20+6 weeks' gestation. Twenty-five (13{%}) women had their structural scan between 21-24 weeks. One hundred and forty-one women (66{%}) had a complete structural scan at first visit, and the remainder were offered repeat scan. Fifty-five (28{%}) women returned for rescan and 44 (22{%}) women had a complete structural survey then. The assessment of fetal growth was performed in 170 (79{%}) women, with 43 (20{%}), 42 (20{%}) and 59 (28{%}) of women having had 1, 2 or 3 growth scans. Twenty-six (12{%}) women had more than 3 scans. At the first growth scan, only 17 (10{%}) women had a macrosomic fetus with an abdominal circumference (AC) {>} 95th centile, while 5 (3{%}) had a fetal AC {