• J P Neilson.
• Department of Obstetrics and Gynaecology, University of Liverpool, Liverpool, UK, L69 3BX. jneilson@liverpool.ac.uk
• Cochrane Db Syst Rev. 2000 Jan 1; 2003 (2): CD001998CD001998.

BackgroundBecause placenta praevia is implanted unusually low in the uterus, it may cause major, and/or repeated, antepartum haemorrhage. The traditional policy of care of women with symptomatic placenta praevia includes prolonged stay in hospital and delivery by caesarean section.ObjectivesTo assess the impact of any clinical intervention applied specifically because of a perceived likelihood that a pregnant woman might have placenta praevia.Search StrategyA comprehensive electronic search was performed to identify relevant literature. Searched databases included the Trials Register maintained by the Cochrane Pregnancy and Childbirth Group, and the Cochrane Controlled Clinical Trials Register.Selection CriteriaAny controlled clinical trial that has assessed the impact of an intervention in women diagnosed as having, or being likely to have, placenta praevia.Data Collection And AnalysisData were extracted from the three identified trial reports, unblinded, by the author without consideration of results.Main ResultsTwo comparisons could be made - home versus hospitalisation and cervical cerclage versus no cerclage. Both were associated with reduced lengths of stay in hospital antenatally. Otherwise, there was little evidence of any clear advantage or disadvantage to a policy of home versus hospital care. Cervical cerclage may reduce the risk of delivery before 34 weeks, or the birth of a baby weighing less than 2 kg or having a low 5 minute Apgar score. In general, these possible benefits were more evident in the trial of lesser methodological quality.Reviewer's ConclusionsThere are insufficient data from trials to recommend any change in clinical practice. Available data should, however, should encourage further work to address the safety of more conservative policies of hospitalisation for women with suspected placenta praevia, and the possible value of insertion of a cervical suture.

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