Transabdominal amnioinfusion for improving fetal outcomes after oligohydramnios secondary to preterm prelabour rupture of membranes before 26 weeks.

BACKGROUND: Preterm prelabour rupture of membranes (PPROM) before 26 weeks can delay lung development and can cause pulmonary hypoplasia, as a result of oligohydramnios. Restoring the amniotic fluid volume by transabdominal amnioinfusion might prevent abnormal lung development and might have a protective effect for neurological complications, fetal deformities and neonatal sepsis. OBJECTIVES: To assess the effectiveness of transabdominal amnioinfusion in improving perinatal outcome in women with oligohydramnios secondary to rupture of fetal membranes before 26 weeks. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 April 2013). SELECTION CRITERIA: All randomised controlled trials comparing transabdominal amnioinfusion with no transabdominal amnioinfusion. Cluster- or quasi-randomised trials were not eligible for inclusion. In cases where only an abstract was available, we attempted to find the full articles. DATA COLLECTION AND ANALYSIS: Two review authors assessed trials for inclusion. No eligible trials were identified. MAIN RESULTS: There are no included studies. AUTHORS' CONCLUSIONS: There is currently no evidence to evaluate the use of transabdominal amnioinfusion in women with oligohydramnios secondary to rupture of fetal membranes before 26 weeks for improving perinatal outcome. Further research examining the effects of this intervention is needed. Two randomised controlled trials are ongoing but final data have not yet been published.

Is it useful to measure C-reactive protein and leukocytes in patients with prelabor rupture of membranes?

Neonatal infection is the main complication of prelabor rupture of membranes (PROM). We studied the accuracy of measuring C-reactive protein (CRP) and leukocytes in maternal serum to predict neonatal infection. We performed a retrospective cohort study in two hospitals in the Netherlands between 2003 and 2006. We included consecutive women hospitalized for PROM. In both hospitals, CRP and leukocytes were measured routinely in maternal serum every 2 days until delivery. End points considered were clinical neonatal infection and proven neonatal sepsis. The accuracy of CRP and leukocytes was assessed using receiver operating characteristic (ROC) analysis. We included 299 women with PROM, 12 of whom had a twin pregnancy. Gestational age at inclusion varied between 26 weeks and 0 days and 41 weeks and 5 days with a median of 37 weeks and 3 days. In 47 women (16%), the neonate developed a clinical infection. The areas under the ROC curve of CRP and leukocytes in the prediction of clinical neonatal infection were 0.61 and 0.62, respectively. Of the 47 infected neonates, six neonates (2%) had a proven neonatal sepsis. In the mothers of these septic neonates, maternal CRP did not rise above 50 mg/L and leukocyte values varied between 9.8 and 25.8 x 10 (9)/L. In women with PROM, CRP and leukocytes should not be measured routinely.