Isolated oligohydramnios in term pregnancy as an indication for induction of labor.
OBJECTIVE
To evaluate the outcome of active induction of labor for isolated oligohydramnios in low-risk term gestation.


METHODS
This retrospective study analyzed the obstetric and perinatal outcome of 412 singleton term pregnancies with cephalic presentation and no maternal risk factors or fetal abnormalities. Two groups were compared: 206 deliveries after induced labor for isolated oligohydramnios, and 206 deliveries matched for gestational age following spontaneous labor with normal amniotic fluid index.


RESULTS
The overall rate of cesarean deliveries and cesarean deliveries for nonreassuring fetal status, and operative vaginal delivery rates and those for nonreassuring fetal status were higher in the oligohydramnios group than in the control group. There were no differences between groups in neonatal outcome or perinatal morbidity or mortality.


CONCLUSIONS
Active induction of labor in term low risk gestations with isolated oligohydramnios translated into higher labor induction, operative vaginal delivery and cesarean section rates. This led to increased maternal risk and an increase in costs with no differences in neonatal outcome.
Manzanares
S
S
Obstetrics and Gynecology Department, Virgen de las Nieves University Hospital, Granada, 18014 Spain. smanzanares@sego.es
Carrillo
M P
MP
González-Perán
E
E
Puertas
A
A
Montoya
F
F
D000328:Adult; D016022:Case-Control Studies; D002585:Cesarean Section; D005260:Female; D005865:Gestational Age; D006801:Humans; D007751:Labor, Induced; D016104:Oligohydramnios / Q000628:therapy*; D011247:Pregnancy; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D047929:Term Birth