Pregnancy Outcomes in Isolated Oligohydramnios during Second Trimester: A Case Series

Oligohydramnios is associated with increased maternal and foetal morbidities. However, some of the recent studies have shown no adverse effect of isolated oligohydramnios on perinatal outcome and recommends continuation of pregnancy. Pregnancies between 18-28 weeks with isolated Oligohydramnios were included. History and physical examination was recorded in a pre-designed proforma. All the cases received care as per the protocol. A total of seven patients were recruited of which one was a twin pregnancy with Oligohydramnios in both sacs. The mean age at presentation was 30 years. Three patients went into spontaneous explusion at an average gestational age of 22-24 weeks. One patient with twins delivered vaginally at 32 weeks. Rest were delivered by caesarean section between 34-35 weeks (indication in majority of the cases was foetal distress and cord compression). None of the babies suffered any complication and were discharged in good condition. Isolated oligohydramnios during second trimester does not increase adverse perinatal outcome significantly (but increases the caesarean section rate) and therefore, should not be an indication for termination of pregnancy.