![]() ![]() The effects on the number of babies with Apgar score below seven were uncertain (low‐quality evidence). Abnormal fetal heart trace is probably lower with tocolytic treatment (RR 0.28, 95% CI 0.08 to 0.95 2 studies, 43 women moderate‐quality evidence). ![]() The decision for caesarean section delivery was an inclusion criterion in both studies so we could not assess this as an outcome under this comparison. One had gross hydrocephalus and the second occurred with vaginal delivery after waiting 55 minutes for caesarean section. There were two stillbirths, both in the no tocolytic control group (risk ratio (RR) 0.23, 95% confidence interval (CI) 0.01 to 4.55 2 studies, 57 women low‐quality evidence). Selective ß 2‐adrenergic agonist versus no tocolytic agent, whilst awaiting emergency delivery Limited information was available on maternal outcomes. All of the trials used a selective beta 2 (ß 2)‐adrenergic agonist in one arm, however the drug used varied, as did the comparator. Overall, the studies had a low risk of bias, except for methods to maintain blinding. The hospital facilities all had the capacity to perform caesarean section. Two trials were conducted in upper and lower middle‐income countries (South Africa, Sri Lanka). We included eight studies (734 women), conducted in hospital settings, predominantly in high‐income countries (USA, Austria, Uruguay). ![]()
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