VP35.09: Study on prediction of birthweight in term pregnancy by ultrasonic measurement in mid‐trimester

Abstract

Virtual poster abstractsthe Fetal Medicine Foundation (FMF) and Indian fetal growth charts were published at the ISUOG World Congress. We compare our data to different fetal growth charts available in Astraia gmbh. We used 4 charts which are commonly used worldwide. Chitty et al, Hadlock et al, Intergrowth charts, and WHO charts. Each of the charts is shown by bell shaped curve and our biometry of 19000 patients were plotted deviation of z score. Results: Our biometry and growth charts don't fit in to the bell shape of the popular international charts. Astraia GMBH has facility to analyse data. Local population charts will definitely reduce false positive diagnosis of FGR by 9% as well as false negative diagnosis of fetal macrosomia by 11%. NICU admission & related complications were reduced by 8%. Only AC comparison (image) submitted as per ISUOG. BPD, HC & FL also shows similar discrepancy. due to upload restriction, we are uploading only one image of AC. Conclusions: Data suggest that if we use local population charts (Indian charts for present study) will define FGR, both < 10th centile and < 3rd centile with better accuracy. Appropriate use of charts and diagnosis will avoid unnecessary obstetric intervention and NICH admission for better outcome.