External cephalic version: a safe procedure? a systematic review of version-related risks

Ronald J. Collaris, S. Guid Oei

Research output: Contribution to journalReview articlepeer-review

108 Citations (Scopus)

Abstract

Background. The Term Breech Trial has considerably increased the number of cesareans. External cephalic version (ECV) might be an effective method of lowering the rate of cesareans; its efficacy has been well established. However, although in the absence of anesthesia the risks are thought to be low, most studies have used populations too small to allow definite conclusions on version-related risks. Methods. In an attempt to make an inventory of these risks, we have systematically analyzed 44 studies, covering a total of 7377 patients from 1990 to 2002. The studies used were derived from a Medline and Embase search. Results. The most frequently reported complications were transient abnormal cardiotocography (CTG) patterns (5.7%). Persisting pathological CTG readings (0.37%) and vaginal bleeding occur rarely (0.47%). The incidence of placental abruption was even lower, at 0.12%. Fetomaternal transfusion was absent in five out of seven studies, with a mean incidence of 3.7%. Emergency cesareans were performed in 0.43% of all versions. Perinatal mortality was 0.16%. Conclusions. External cephalic version seems to be a safe procedure.

Original languageEnglish
Pages (from-to)511-518
Number of pages8
JournalActa Obstetricia et Gynecologica Scandinavica
Volume83
Issue number6
DOIs
Publication statusPublished - 1 Jun 2004

Keywords

  • Breech
  • External cephalic version
  • Fetal
  • Risks
  • Safety

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