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Maternal and neonatal outcome associated with prolonged premature rupture of membranes below 26 weeks' gestation.

The outcomes of 41 patients with prolonged, premature rupture of membranes in the midtrimester (19.5 to 26 weeks) managed conservatively were retrospectively analyzed. The maternal obstetric history was notable for a high incidence of second trimester bleeding and a prior history of preterm delivery. The mean duration of ruptured membranes before delivery was 10.6 days and was unrelated to gestational age. Delivery occurred within 2 weeks in 75% of the cases. The major indication for delivery was chorioamnionitis in 71% of patients. The only major maternal morbidity was chorioamnionitis. The overall perinatal survival was 47%, but in infants exceeding 24 weeks' gestation or 500 gm weight, the survival increased to 75%. No significant limb abnormalities, facial anomalies, growth retardation, or pulmonary hypoplasia occurred in the study population. Long-term follow-up demonstrated that 28% of infants exhibited major neurologic or developmental deficits.