SONOGRAPHIC COMPARISON OF FETAL RENAL ARTERY DOPPLER INDICES WITH AFI IN THIRD TRIMESTER

Abstract

Background: Oligohydramnios is a medical condition characterized by condition with decrease amniotic fluid volume defined as a single deepest pocket <2cm or amniotic fluid index (AFI) <5cm. About 3-4 % of pregnant women is presenting with low amniotic fluid at any point of pregnancy. Oligohydramnios has an incidence of around 1-5% of total pregnancies. A prospective study conducted at University of Texas South-Western Medical Center showed the incidence of oligohydramnios to be 2.3%. Similar result was obtained in USA among 953 Womens over the period of 12 month in 3rd trimester. High rated of oligohydromnios were found in summer as compared to rest of the year. OBJECTIVE: To Compare fetal renal artery doppler in patients with or without Oligohydramnios in third trimester of pregnancy. Method: In this cross-sectional analytical study 100 women were included. All pregnant women coming for obstetrical US in third trimester, at university ultrasound clinic green town, Lahore and Sehat Medical complex Hanjerwal, Lahore Toshiba Aplio Mx with linear transducer 7-15MHz frequency was used. Results: Show the different parameter (PSV, EDV, RI, PI) measured in right fetal artery categorized by two conditions: normal and oligo. the significant difference was found in right fetal renal PSV, ED, RI, PI between normal and oligo for PSV and PI shows no significant difference, where EDV shows (p=0.017) and RI shows (p<0.001) between groups. the significant difference were found in left fetal renal PSV, ED, RI, PI between normal and oligo.There is no significant difference seen in EDV,RI,PI between the groups.Significant difference observed in PSV (p=0.015) between groups. Conclusion: The study concluded that the Renal artery resistive index was increased in oligohydramnios as compared to normal individuals.