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Systematic review
Calcium channel blockers are effective as first line for tocolysis in the management of preterm labour
  1. Richard G Brown,
  2. David A MacIntyre
  1. Imperial College Parturition Research Group, Division of the Institute of Reproduction and Developmental Biology, Imperial College, London, UK
  1. Correspondence to: Dr David MacIntyre, Imperial College Parturition Research Group, Division of the Institute of Reproduction and Developmental Biology, Imperial College, Hammersmith Campus, London W12 0NN, UK; d.macintyre{at}imperial.ac.uk

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Context

Preterm birth remains as the leading cause of neonatal morbidity and mortality. Although tocolytics do not reduce the risk of preterm birth, they effectively delay delivery by 48 h.1 This creates a window of opportunity for corticosteroid administration and transfer to units with neonatal intensive care unit (NICU) facilities, which improves neonatal mortality and morbidity.2 However, a consensus on the most effective tocolytic does not exist. This study aimed to assess the effects of calcium channel blockers (CCBs) on maternal, fetal and neonatal outcomes when administered to women in preterm labour.

Methods

This was an updated review of randomised trials using CCBs as tocolytics for management of preterm birth. Maternal, fetal and neonatal outcomes were compared between CCBs (mainly nifedipine), no treatment, placebo and other tocolytics. …

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