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Oral betamimetics for maintenance therapy after threatened pretermlabour(Review) DoddJM,CrowtherCA,DareMR,MiddletonP ThisisareprintofaCochranereview,preparedandmaintained byTheCochraneCollaborationandpublishedinTheCochraneLibrary 2007, Issue 2 http://www.thecochranelibrary.com Oral betamimetics for maintenance therapy after threatened preterm labour (Review) 1 Copyright©2007 The CochraneCollaboration.Published byJohn Wiley & Sons, Ltd TABLE OF CONTENTS ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PLAINLANGUAGESUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 OBJECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CRITERIAFORCONSIDERINGSTUDIESFORTHISREVIEW . . . . . . . . . . . . . . . . . . 2 SEARCHMETHODSFORIDENTIFICATIONOFSTUDIES . . . . . . . . . . . . . . . . . . . 3 METHODSOFTHEREVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DESCRIPTIONOFSTUDIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 METHODOLOGICALQUALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DISCUSSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 AUTHORS’CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 POTENTIALCONFLICTOFINTEREST . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ACKNOWLEDGEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SOURCESOFSUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Characteristics of included studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Characteristics of excluded studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 ANALYSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Comparison 01. Betamimetic versus placebo/no treatment (primary outcomes) . . . . . . . . . . . . . 15 Comparison 02. Betamimetic versus placebo/no treatment (infant outcomes) . . . . . . . . . . . . . . 16 Comparison 03. Betamimetic versus placebo/no treatment (maternal outcomes) . . . . . . . . . . . . . 16 Comparison 04. Betamimetic versus placebo/no treatment (preterm birth and hospital admissions) . . . . . . 16 Comparison 05. Terbutaline versus indomethacin (primary outcomes) . . . . . . . . . . . . . . . . 16 Comparison 06. Terbutaline versus indomethacin (infant outcomes) . . . . . . . . . . . . . . . . . 16 Comparison 07. Terbutaline versus indomethacin (maternal outcomes) . . . . . . . . . . . . . . . . 17 Comparison 08. Terbutaline versus indomethacin (preterm birth and hospital admissions) . . . . . . . . . 17 Comparison 09. Terbutaline versus ritodrine (primary outcomes) . . . . . . . . . . . . . . . . . . 17 Comparison 10. Terbutaline versus ritodrine (infant outcomes) . . . . . . . . . . . . . . . . . . . 17 Comparison 11. Terbutaline versus ritodrine (maternal outcomes) . . . . . . . . . . . . . . . . . . 17 Comparison 12. Terbutaline versus ritodrine (preterm birth and hospital admissions) . . . . . . . . . . . 17 Comparison 13. Betamimetic versus magnesium (primary outcomes) . . . . . . . . . . . . . . . . . 18 Comparison 14. Betamimetic versus magnesium (infant outcomes) . . . . . . . . . . . . . . . . . 18 Comparison 15. Betamimetic versus magnesium (maternal outcomes) . . . . . . . . . . . . . . . . 18 Comparison 16. Betamimetic versus magnesium (preterm birth and hospital admissions) . . . . . . . . . . 18 INDEXTERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 COVERSHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 GRAPHSANDOTHERTABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Analysis 01.03. Comparison 01 Betamimetic versus placebo/no treatment (primary outcomes), Outcome 03 Neonatal 20 intensive care unit admission . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 01.04. Comparison 01 Betamimetic versus placebo/no treatment (primary outcomes), Outcome 04 Perinatal 20 mortality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 02.01. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 01 Preterm birth 21 (< 37 weeks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 02.02. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 02 Birthweight 22 Analysis 02.03. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 03 Respiratory 23 distress syndrome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 02.04. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 04 Necrotising 24 enterocolitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oral betamimetics for maintenance therapy after threatened preterm labour (Review) i Copyright©2007 The CochraneCollaboration.Published byJohn Wiley & Sons, Ltd Analysis 02.05. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 05 24 Intraventricular haemorrhage . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 02.06. Comparison 02 Betamimetic versus placebo/no treatment (infant outcomes), Outcome 06 Neonatal 25 jaundice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 03.01. Comparison 03 Betamimetic versus placebo/no treatment (maternal outcomes), Outcome 01 Side-effects 25 sufficient to stop therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 03.02. Comparison 03 Betamimeticversus placebo/no treatment(maternaloutcomes), Outcome02Tachycardia 26 Analysis 03.03. Comparison 03 Betamimeticversusplacebo/no treatment(maternaloutcomes), Outcome03Tachypnoea 26 Analysis 03.04. Comparison 03 Betamimetic versus placebo/no treatment (maternal outcomes), Outcome 04 27 Hypotension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 03.05. Comparison 03 Betamimetic versus placebo/no treatment (maternal outcomes), Outcome 05 Nausea 27 Analysis 03.06. Comparison 03 Betamimetic versus placebo/no treatment (maternal outcomes), Outcome 06 Vomiting 28 Analysis 03.07. Comparison 03 Betamimeticversus placebo/no treatment (maternaloutcomes), Outcome07 Palpitations 28 Analysis 03.08. Comparison 03 Betamimetic versus placebo/no treatment (maternal outcomes), Outcome 08 Headache 29 Analysis 04.01. Comparison 04 Betamimetic versus placebo/no treatment (preterm birth and hospital admissions), 29 Outcome01Pretermbirth within 24 hours . . . . . . . . . . . . . . . . . . . . . . . Analysis 04.02. Comparison 04 Betamimetic versus placebo/no treatment (preterm birth and hospital admissions), 30 Outcome02Pretermbirth within 48 hours . . . . . . . . . . . . . . . . . . . . . . . Analysis 04.03. Comparison 04 Betamimetic versus placebo/no treatment (preterm birth and hospital admissions), 30 Outcome03Pretermbirth within 1 week . . . . . . . . . . . . . . . . . . . . . . . . Analysis 04.04. Comparison 04 Betamimetic versus placebo/no treatment (preterm birth and hospital admissions), 31 Outcome04Maternal antenatal readmission to hospital . . . . . . . . . . . . . . . . . . . Analysis 05.01. Comparison 05 Terbutaline versus indomethacin (primary outcomes), Outcome 01 Very preterm birth 31 (< 34 weeks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 05.02. Comparison 05 Terbutaline versus indomethacin (primary outcomes), Outcome 02 Neonatal mortality 32 Analysis 06.01. Comparison 06 Terbutaline versus indomethacin (infant outcomes), Outcome 01 Birthweight . . 32 Analysis 06.02. Comparison 06 Terbutaline versus indomethacin (infant outcomes), Outcome 02 Required mechanical 33 ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 06.03. Comparison 06 Terbutaline versus indomethacin (infant outcomes), Outcome 03 Days stay in neonatal 33 intensive care unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 06.04. Comparison 06 Terbutaline versus indomethacin (infant outcomes), Outcome 04 Intraventricular 34 haemorrhage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 07.01. Comparison 07 Terbutaline versus indomethacin (maternal outcomes), Outcome 01 Side-effects 34 sufficient to stop therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 08.01. Comparison 08 Terbutaline versus indomethacin (preterm birth and hospital admissions), Outcome 01 35 Preterm birth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 08.02. Comparison 08 Terbutaline versus indomethacin (preterm birth and hospital admissions), Outcome 02 35 Maternal antenatal readmission to hospital . . . . . . . . . . . . . . . . . . . . . . . . Analysis 09.01. Comparison 09 Terbutaline versus ritodrine (primary outcomes), Outcome 01 Very preterm birth (less 36 than 34 weeks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 10.01. Comparison 10 Terbutaline versus ritodrine (infant outcomes), Outcome 01 Preterm birth (< 37 weeks) 36 Analysis 10.02. Comparison 10 Terbutaline versus ritodrine (infant outcomes), Outcome 02 Mean birthweight . . 37 Analysis 10.03. Comparison 10 Terbutaline versus ritodrine (infant outcomes), Outcome 03 Hyperbilirubinaemia 37 (neonatal jaundice requiring phototherapy) . . . . . . . . . . . . . . . . . . . . . . . Analysis 11.01. Comparison 11 Terbutaline versus ritodrine (maternal outcomes), Outcome 01 Tachycardia . . . 38 Analysis 11.02. Comparison 11 Terbutaline versus ritodrine (maternal outcomes), Outcome 02 Tachypnoea . . . 38 Analysis 11.03. Comparison 11 Terbutaline versus ritodrine (maternal outcomes), Outcome 03 Nausea/vomiting . 39 Analysis 12.01. Comparison 12 Terbutaline versus ritodrine (preterm birth and hospital admissions), Outcome 01 39 Maternal antenatal readmission to hospital . . . . . . . . . . . . . . . . . . . . . . . . Analysis 13.01. Comparison 13 Betamimetic versus magnesium (primary outcomes), Outcome 01 Neonatal intensive 40 care unit admisssion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 13.02. Comparison 13 Betamimetic versus magnesium (primary outcomes), Outcome 02 Perinatal mortality 40 Oral betamimetics for maintenance therapy after threatened preterm labour (Review) ii Copyright©2007 The CochraneCollaboration.Published byJohn Wiley & Sons, Ltd Analysis 14.01. Comparison 14 Betamimetic versus magnesium (infant outcomes), Outcome 01 Preterm birth (< 37 41 weeks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 14.02. Comparison 14 Betamimetic versus magnesium (infant outcomes), Outcome 02 Birthweight . . . 42 Analysis 14.03. Comparison 14 Betamimetic versus magnesium (infant outcomes), Outcome 03 Respiratory distress 42 syndrome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 14.04. Comparison 14 Betamimetic versus magnesium (infant outcomes), Outcome 04 Intraventricular 43 haemorrhage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 14.05. Comparison 14 Betamimetic versus magnesium (infant outcomes), Outcome 05 Neonatal jaundice . 43 Analysis 15.01. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 01 Side-effects sufficient 44 to stop medication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 15.02. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 02 Tachycardia/ 45 palpitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis 15.03. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 03 Tachypnoea . . 45 Analysis 15.04. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 04 Nausea . . . . 46 Analysis 15.05. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 05 Vomiting . . . 47 Analysis 15.06. Comparison 15 Betamimetic versus magnesium (maternal outcomes), Outcome 06 Chest pain . . 47 Analysis 16.01. Comparison 16 Betamimetic versus magnesium (preterm birth and hospital admissions), Outcome 01 48 Maternal antenatal readmission to hospital . . . . . . . . . . . . . . . . . . . . . . . . Oral betamimetics for maintenance therapy after threatened preterm labour (Review) iii Copyright©2007 The CochraneCollaboration.Published byJohn Wiley & Sons, Ltd
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