PERINATAL OUTCOME OF OLIGOHYDRAMNIOS WITHOUT ASSOCIATED PREMATURE RUPTURE OF MEMBRANES AND FETAL ANOMALIES

To investigate the perinatal outcome of patients with oligohydramnios (amniotic fluid index less than or equal to 5 cm), but without prematu re rupture of membranes and fetal congenital anomalies, data from 245 singleton pregnancies were analyzed and compared to those with normal amniotic fluid volumes (5 < amniotic fluid index < 24 cm, n = 27,261). Significantly higher incidences of primiparity, pregnancy-induced hyp ertension, premature separation of placenta, past history of intrauter ine fetal death, past history of preterm delivery, postterm pregnancy, and advanced maternal age were noted to be associated with the occurr ence of oligohydramnios. Pregnancies complicated by a markedly diminis hed amniotic fluid volume assessed antenatally by ultrasound were sign ificantly more frequently associated with adverse perinatal outcomes s uch as preterm delivery, low or very low birth weight, low Apgar score s, intrauterine fetal death, small-for-gestational-age newborns, mecon ium staining, cesarean delivery, neonatal intensive care, and neonatal death.