Aim To determine whether an antepartum low amniotic fluid index (AFI) is a predictor of adverse perinatal outcome in normal pregnancy and to determine a threshold level of AFI that could predict an adverse outcome. Methods This was a prospective study conducted among 180 pregnant women at 37–40 weeks of gestation with no known obstetric or medical complications with an AFI?≤?5th percentile. The results were statistically analyzed and compared. Results In the control group, the mean AFI was 10.14?cm and in the study group, it was 4.14?cm. 65?% patients in the study group and 24?% in the control group had a non-reactive non-stress Test. In the control group, 53?% of patients were induced for reasons other than oligohydramnios, while in the study group, 86?% of patients were induced for oligohydramnios. Among the control group, 33?% had a LSCS, while 67?% delivered vaginally; and in the study group, 34?% delivered vaginally and 66?% had a LSCS. In our study, a 5-min APGAR?7 was seen in 34?% in the study group and 11?% in the control group. 33?% neonates in the control group and 64?% in the study group had birth weights <2.5?kg. Conclusions In the presence of oligohydramnios, perinatal morbidity and mortality are high. Determination of AFI is a valuable screening test for predicting fetal distress.
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