Late Onset Severe Oligohydramnios Associated with Genitourinary Abnormalities

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Abstract
We evaluated the diagnosis, gestational age at presentation, timing and mode of delivery, and ultimate outcome in those fetuses with third trimester onset of severe oligohydramnios who also had urinary tract abnormalities. A total of 8 fetuses with obstructive uropathy or cystic renal disease was seen during a 2-year period with the onset of severe oligohydramnios noted between 27 and 33 weeks. Immediate and late postnatal pulmonary function was excellent in 5 of the 8 subjects. Three neonates had respiratory distress but only 1 died at birth. Ultimate renal function varied in the 7 survivors. Those with supravesical obstructive uropathy achieved a normal serum creatinine, while the neonates with renal cystic disease and infravesical obstruction did not.