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Am J Obstet Gynecol. 1985 Nov 1;153(5):557-62.

Prophylactic intrapartum amnioinfusion in patients with preterm premature rupture of membranes.


Patients with preterm premature rupture of the membranes are at increased risk to develop intrapartum variable decelerations and fetal distress. Short-term saline solution amnioinfusion may be of benefit in the treatment of variable or prolonged decelerations once they appear. In an effort to assess the benefit of prophylactic amnioinfusion, patients with preterm premature rupture of the membranes were studied during a 1-year period in a prospective randomized manner. Patients receiving prophylactic amnioinfusion had significantly decreased incidence and severity of variable decelerations in the first stage of labor (p less than 0.005). In the second stage of labor, the incidence of severe (p less than 0.005) and total (p less than 0.001) decelerations was also decreased in the treatment group. The umbilical arterial pH at delivery was significantly lower (p less than 0.001) as was the umbilical venous pH (p less than 0.005) in the newborn infants of control patients compared with those of patients receiving amnioinfusion. This suggests that prophylactic intrapartum amnioinfusion is of significant benefit in reducing the incidence of variable decelerations and improving the metabolic state in newborn infants born to women with preterm premature rupture of the membranes.

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