Assessment of Correlation between Transcerebellar Diameter and Gestation age in IUGR pregnancies

Abstract

Background: Accurate assessment of the gestational age is very critical in the management of IUGR cases and their associated complications. Present study was done with the objective to evaluate the Correlation between Transcerebellar Diameter and Gestation age in IUGR pregnancies. Material and Methods: This Prospective Cross-sectional study was conducted on antenatal women of gestational age 15-40 weeks with IUGR pregnancies cases attending the antenatal clinic and admitted in the Department of Obstetrics and gynecology, and sent to Department of Radiology KNSH MandC and IGMC Shimla for Antenatal USG Scan. In every patient TCD was measured. Data was analysed by appropriate statistical test using EPI INFO Version 7.2 software. Correlation coefficients were then used to compare TCD with Gestational age in IUGR pregnancies. Results: In this study 120 cases were studied out of which 20 were pregnancies with IUGR. Age distribution of IUGR pregnancies was 20 to 27years with mean age of 22.6±2.14 years. Maximum number of patients 13(65%) was between 21-25 years followed by 16-20 years 4(20%). Youngest patient was 20 years old and the eldest was 27 years. Maximum number of patients 8(40%) was between 30-36 weeks and 36-42 weeks of gestation and least number of patients 1 (5%) were between 24- 30weeks. In third trimester of pregnancy it was observed that TCD shows strongest correlation with gestational age and shows a statistically significant correlation (P is less than 0.001).It was noted that there is a correlation between gestational age and TCD in second trimester of IUGR pregnancies however the correlation was statistically insignificant(P>0.05). Conclusion: TCD is better predictor of gestational age in IUGR pregnancies as it remains nearly unaffected and correlates more closely with gestational age both in second and third trimester of pregnancy.