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- W4234702983 abstract "Background Maternal colonization with group B streptococcus (GBS) during pregnancy increases the risk of neonatal infection by vertical transmission. Administration of intrapartum antibiotic prophylaxis (IAP) during labor has been associated with a reduction in early onset GBS disease (EOGBSD). However, treating all colonized women during labor exposes a large number of women and infants to possible adverse effects without benefit. Objectives To assess the effect of IAP for maternal GBS colonization on neonatal: 1) all cause mortality and 2) morbidity from proven and probable EOGBSD, late onset GBS disease (LOD), maternal infectious outcomes and allergic reactions to antibiotics. Search methods We updated the search of the Cochrane Pregnancy and Childbirth Group's Trials Register on 10 November 2012. Selection criteria Randomized trials assessing the impact of maternal IAP on neonatal GBS infections were included. Data collection and analysis We independently assessed eligibility and quality of the studies. Main results We did not identify any new trials from the updated search so the results remain unchanged as follows. Three trials (involving 852 women) evaluating the effects of IAP versus no treatment were included. The risk of bias was high. The use of IAP did not significantly reduce the incidence of all cause mortality, mortality from GBS infection or from infections caused by bacteria other than GBS. The incidence of early GBS infection was reduced with IAP compared to no treatment (risk ratio 0.17, 95% confidence interval (CI) 0.04 to 0.74, three trials, 488 infants; risk difference ‐0.04, 95% CI ‐0.07 to ‐0.01; number needed to treat to benefit 25, 95% CI 14 to 100, I2 0%). The incidence of LOD or sepsis from organisms other than GBS and puerperal infection was not significantly different between groups. One trial (involving 352 women) compared intrapartum ampicillin versus penicillin and reported no significant difference in neonatal or maternal outcomes. Authors' conclusions Intrapartum antibiotic prophylaxis appeared to reduce EOGBSD, but this result may well be a result of bias as we found a high risk of bias for one or more key domains in the study methodology and execution. There is lack of evidence from well designed and conducted trials to recommend IAP to reduce neonatal EOGBSD. Ideally the effectiveness of IAP to reduce neonatal GBS infections should be studied in adequately sized double‐blind controlled trials. The opportunity to conduct such trials has likely been lost, as practice guidelines (albeit without good evidence) have been introduced in many jurisdictions." @default.
- W4234702983 created "2022-05-12" @default.
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- W4234702983 date "2013-01-31" @default.
- W4234702983 modified "2023-09-27" @default.
- W4234702983 title "Intrapartum antibiotics for known maternal Group B streptococcal colonization" @default.
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- W4234702983 doi "https://doi.org/10.1002/14651858.cd007467.pub3" @default.
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