Neonatal Morbidity Between 34 and 37 Weeksʼ Gestation

Perinatal Outcome of Twin Pregnancies With One Structurally Affected Fetus: A Case-Control Study

“…In most tertiary center nurseries, as in our nursery, the incidence of significant neonatal morbidity and mortality does not change significantly by gestational age between 33 and 37 completed weeks' gestation. 12,13 Thus, it seems likely that the increased perinatal mortality in cases was more related to the severity of the anomaly than to gestational age. The presence of an anomaly does not seem to have influenced the decision for preterm delivery, because the rate of indicated preterm delivery was similar between the pregnancies complicated by an anomaly and those that were not.…”

“Blind” Vaginal Fetal Fibronectin as a Predictor of Spontaneous Preterm Delivery

“…A gestational age cutoff for prematurity of 34 weeks (as opposed to 37 weeks) was chosen because evidence indicates that infants delivered between 34 and 37 weeks of gestation experience morbidity and mortality at rates similar to term infants delivered between 37 and 40 weeks. 14 The vast majority of preterm infants with clinically relevant morbidity and mortality due to prematurity are born at less than 34 weeks of gestation.…”

A review of the role for magnesium sulphate in preterm labour

“…The only RCTs comparing tocolytic MgSO 4 to a physiological saline control failed to show any demonstrable measure of efficacy, and certainly no improvement in perinatal outcomes. 11,12 In addition to the Cochrane study discussed above, other reviews and metaanalyses by investigators in the United States, 13,14 Canada 15 and Britain 16 have all failed to report any evidence of tocolytic efficacy for MgSO 4 , whereas each report has articulated concerns over maternal and fetal safety. For an in-depth analysis of existing tocolytic MgSO 4 RCTs, as well as a relevant meta-analysis of compatible trials, please refer to one of our previous reviews.…”