Mode of Delivery After Successful External Cephalic Version: A Systematic Review and Meta-analysis

• Published in: Obstetrics and gynecology (New York. 1953) Vol. 123; no. 6; pp. 1327 - 1334
• Main Authors: de Hundt, Marcella, Velzel, Joost, de Groot, Christianne J., Mol, Ben W., Kok, Marjolein
• Format: Journal Article
• Language: English
• Published: United States by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved 01-06-2014; by The American College of Obstetricians and Gynecologists
• Subjects: Breech Presentation - therapy; Cesarean Section - statistics & numerical data; Dystocia - surgery; Female; Humans; Obstetrical Forceps - statistics & numerical data; Pregnancy; Version, Fetal
• ISSN: 0029-7844; 1873-233X
• DOI: 10.1097/AOG.0000000000000295

OBJECTIVE:To assess the mode of delivery in women after a successful external cephalic version by performing a systematic review and meta-analysis.
DATA SOURCES:We searched MEDLINE, Embase, ClinicalTrials.gov, Cumulative Index to Nursing and Allied Health Literature, and the Cochrane Library for studies reporting on the mode of delivery in women after successful external cephalic version at term and women with a spontaneous cephalic-presenting fetus.
METHODS OF STUDY SELECTION:Two reviewers independently selected studies, extracted data, and assessed study quality. The association between mode of delivery and successful external cephalic version was expressed as a common odds ratio with a 95% confidence interval (CI).
TABULATION, INTEGRATION, AND RESULTS:We identified three cohort studies and eight case–control studies, reporting on 46,641 women. The average cesarean delivery rate for women with a successful external cephalic version was 21%. Women after successful external cephalic version were at increased risk for cesarean delivery for dystocia (odds ratio [OR] 2.2, 95% CI 1.6–3.0), cesarean delivery for fetal distress (OR 2.2, 95% CI 1.6–2.9), and instrumental vaginal delivery (OR 1.4, 95% CI 1.1–1.7).
CONCLUSION:Women who have had a successful external cephalic version for breech presentation are at increased risk for cesarean delivery and instrumental vaginal delivery as compared with women with a spontaneous cephalic presentation. Nevertheless, with a number needed to treat of three, external cephalic version still remains a very efficient procedure to prevent a cesarean delivery.
LEVEL OF EVIDENCE:(Data for is not given in the PDF but is given in PDFs of other chapters, please confirm with PE)