title: Anesthesia facilitation of external cephalic version: a meta-analysis.
abstract: OBJECTIVE
  This study was undertaken to systematically review the medical literature to determine whether anesthesia facilitates the external cephalic version maneuver (ECV) for breech presentations. Study design A meta-analytic review of medical databases for randomized clinical trials comparing anesthesia with no anesthesia given for ECV attempts. The primary outcome was the immediate success of the ECV attempt.
  
  
  RESULTS
  The literature search revealed only 4 articles that met inclusion criteria. Four hundred eighty women participated in the studies and the use of anesthesia increased the success of ECV attempts (119/238 with anesthesia; 82/242 without anesthesia). The relative risk for this beneficial effect was 1.5 (95% CI 1.12-1.98) and number needed to treat was 7 (95% CI 4-14).
  
  
  CONCLUSIONS
  Further study is required to assess maternal and neonatal safety with anesthesia administered for ECV maneuvers.
authors.affiliation: Department of Anesthesia, Mount Sinai Hospital, University of Toronto, 600 University Avenue, Toronto, Ontario, Canada M5G 1X5. alison.macarthur@uhn.on.ca
authors.forename: Alison J
authors.initials: AJ
authors.lastname: Macarthur
authors.forename: Sophie
authors.initials: S
authors.lastname: Gagnon
authors.forename: Luminita M
authors.initials: LM
authors.lastname: Tureanu
authors.forename: Kristi N
authors.initials: KN
authors.lastname: Downey
mesh_terms: D000765:Anesthesia, Conduction; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D011247:Pregnancy; D014710:Version, Fetal