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J Reprod Med. 1992 Sep;37(9):817-20.

Prophylactic intrapartum amnioinfusion for patients with oligohydramnios. A prospective randomized study.

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Department of Obstetrics and Gynecology, U.S. Naval Hospital, Portsmouth, Virginia.


This prospective study evaluated whether prophylactic saline amnioinfusion among patients with amniotic fluid index (AFI) < or = 5.0 cm decreases the incidence of adverse fetal outcomes. Randomization of 53 patients with decreased AFI at term, resulted in 21 patients' receiving prophylactic saline amnioinfusion early in labor, prior to development of an abnormal fetal heart rate tracing. For the treatment group the mean AFI on admission was 3.0 cm, and the postamnioinfusion AFI was 8.9 cm. For 32 comparison (noninfusion) patients, the mean AFI was 2.9 cm; the group consisted of 17 patients randomized to receive no amnioinfusion (control group) and 15 patients who refused to participate in the study. There was no statistically significant difference between the amnioinfused and nonamnioinfused patients with regard to age, parity, gestational age, AFI at admission or duration of first or second stage of labor. Amnioinfusion resulted in no statistically significant reduction in the incidence of recurrent variable decelerations/bradycardia (26.3% vs. 46.6%), intrapartum resuscitation with terbutaline (5.2% vs. 10.0%), cesarean section for fetal distress (9.5% vs. 9.3%), fetal-acidosis (10.5% vs. 12.0%) or Apgar scores < 7 at five minutes (5.2% vs. 0%) in patients with oligohydramnios.

[Indexed for MEDLINE]

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