ACCURACY OF LAST MENSTRUAL PERIOD AND ULTRASONOGRAPHY IN PREDICTING DELIVERY DATE: A RETROSPECTIVE ANALYSIS

Soumya Rathi; Rupeshree Bhoyar

Volume : IX, Issue : I, January - 2019

ACCURACY OF LAST MENSTRUAL PERIOD AND ULTRASONOGRAPHY IN PREDICTING DELIVERY DATE: A RETROSPECTIVE ANALYSIS

Soumya Rathi, Rupeshree Bhoyar

Abstract :

Introduction: Adequate and optimal management of pregnancy is largely dependent on accurate estimation of gestational age. Accurate estimation of gestational age is vital from clinical point of view, since correct interpretation of various screening tests and laboratory tests during the course of pregnancy is largely governed by knowledge of precise duration of gestation at the time of analysis of tests. The present study was planned to analyze last menstrual period (LMP) using Naegele’s rule and ultrasonography (USG) in predicting fairly accurate delivery date. Materials and Methods: The present study was a retrospective case control study done by analyzing the medical records of 82 pregnant subjects to grasp information on estimated date of delivery (EDD) by LMP and USG methods and then it was compared with actual date of delivery. Results: Out of 82 patients, 27 patients data showed that LMP was better predictor of delivery date with mean difference in estimated delivery date being 7.45±3.5, while 33 patients showed USG as better predictor in whom mean difference between estimated delivery date and actual delivery date was 7.25±3.9. After analyzing these data with the help of student “t” test, no statistically significant difference in means was found. (p>0.05). Conclusion: Both USG and LMP are almost equally accurate in predicting delivery date.