Outcome of pregnancy with oligohydramnios at tertiary care teaching Hospital: an observational study

Introduction: Oligohydramnios occurs in about 1% to 5% of pregnancies. It has been associated with variety of fetal and maternal morbidity and mortality. The objective of this study was to compare the pregnancy outcome in cases with oligohydramnios in comparison to normal pregnancy. Materials and methods: This prospective observational study was carried out in Department of Obstetrics and Gynecology. Women attending antenatal clinical or labor room with or without oligohydramnios were included in the study in cases (oligohydramnios) and controls (without oligohydramnios). The data was recorded and analyzed in predefined manner in both the groups. Statistical analysis like frequency, chi-square test and relative risk was found to compare both the groups. Results: During the period of one year, 205 cases and 205 controls were enrolled in the study. At 37-39 weeks and 40-42 weeks of gestational age, significant higher numbers of patients were seen in case group. The most common co-morbidity is PIH (20.97%) . Relative risk of abnormal Doppler (6.001) and cesarean section (1.477) is higher in case group. Following parameters were statistically significant like weight of baby (<2 kg), and NICU admission (p value <0.05). Women with oligohydramnios are associated with abnormal Doppler, more incidence induced labor, NICU admission and APGAR score >7 Higher incidence of operative delivery is seen in patients having associated PIH, IUGR and MSL. most common cause of LSCS in cases and controls was PIH (38(18.6%)) . Conclusion: Women with oligohydramnios are associated with abnormal Doppler, more incidence induced labor, NICU admission and APGAR score <7.