The force applied to successfully turn a foetus during reattempts of external cephalic version is substantially reduced when performed under spinal analgesia

References

• Hofmeyr GJ, Kulier R. External cephalic version for breech presentation at term. Cochrane Database Syst Rev 2011, Issue 1. Art. No.: CD000083. DOI: 10.1002/14651858.CD000083.
   Google Scholar
• Leung TY, Lau TK, Lo KW, Rogers MS. A survey of pregnant women’s attitude towards breech delivery and external cephalic version. Aust NZ J Obstet Gynaecol 2000;40:253–259.
   PubMed Web of Science ®Google Scholar
• Leung TY, Sahota DS, Fok WY, Chan LW, Lau TK. Pain score rated after external cephalic version correlates with the amount of force exerted during version [abstract]. J Perinat Med 2005;33 (Suppl):194.
   Google Scholar
• Schorr SJ, Speights SE, Ross EL, Bofill JA, Rust OA, Norman PF, Morrison JC. A randomized trial of epidural anesthesia to improve external cephalic version success. Am J Obstet Gynecol 1997;177:1133–1137.
   PubMed Web of Science ®Google Scholar
• Dugoff L, Stamm CA, Jones OW 3rd, Mohling SI, Hawkins JL. The effect of spinal anesthesia on the success rate of external cephalic version: a randomized trial. Obstet Gynecol 1999;93:345–349.
   PubMed Web of Science ®Google Scholar
• Fok WY, Chan LW, Leung TY, Lau TK. Maternal experience of pain during external cephalic version at term. Acta Obstet Gynecol Scand 2005;84:748–751.
   PubMedGoogle Scholar
• Leung TY, Sahota DS, Chan LW, Fok WY, Law LW, Lau TK. Variation of force applied during external cephalic version with different patients’ characteristic and outcome of version. Acta Obstet Gynecol Scand 2006;85:182–187.
   PubMed Web of Science ®Google Scholar
• Fell MR. External cephalic version. Lancet 1953;265:264–268.
   PubMedGoogle Scholar
• Ranney B. The gentle art of external cephalic version. Am J Obstet Gynecol 1973;116:239–251.
   PubMedGoogle Scholar
• Hofmeyr GJ, Gyte GML. Interventions to help external cephalic version for breech presentation at term. Cochrane Database Syst Rev 2010, Issue 1. Art. No.: CD000184. DOI: 10.1002/14651858.CD000184.pub2.
   Google Scholar
• Leung TY, Sahota DS, Fok WY, Chan LW, Lau TK. Quantification of contact surface pressure exerted during external cephalic version. Acta Obstet Gynecol Scand 2003;82:1017–1022.
   PubMed Web of Science ®Google Scholar
• Leung TY, Sahota DS, Fok WY, Chan LW, Lau TK. External cephalic version induced fetal cerebral and umbilical blood flow changes are related to the amount of pressure exerted. BJOG 2004;111:430–435.
   PubMedGoogle Scholar
• Lau TK, Lo KW, Wan D, Rogers MS. Predictors of successful external cephalic version at term: a prospective study. Br J Obstet Gynaecol 1997;104:798–802.
   PubMedGoogle Scholar
• Ngan Kee WD, Khaw KS, Ng FF. Comparison of phenylephrine infusion regimens for maintaining maternal blood pressure during spinal anaesthesia for caesarean section. Br J Anaesth 2004;92:469–474.
   PubMed Web of Science ®Google Scholar
• Ngan Kee WD, Khaw KS, Ng FF. Prevention of hypotension during spinal anesthesia for cesarean delivery: an effective technique using combination phenylephrine infusion and crystalloid cohydration. Anesthesiology 2005;103:744–750.
   PubMed Web of Science ®Google Scholar
• Kok M, Cnossen J, Gravendeel L, van der Post J, Opmeer B, Mol BW. Clinical factors to predict the outcome of external cephalic version: a metaanalysis. Am J Obstet Gynecol 2008;199:630.e1–7; discussion e1.
   PubMedGoogle Scholar
• Kok M, Cnossen J, Gravendeel L, Van Der Post JA, Mol BW. Ultrasound factors to predict the outcome of external cephalic version: a meta-analysis. Ultrasound Obstet Gynecol 2009;33:76–84.
   PubMed Web of Science ®Google Scholar
• Lau TK, Lo KW, Chan LY, Leung TY, Lo YM. Cell-free fetal deoxyribonucleic acid in maternal circulation as a marker of fetal–maternal hemorrhage in patients undergoing external cephalic version near term. Am J Obstet Gynecol 2000;183:712–716.
   PubMed Web of Science ®Google Scholar
• Lau TK, Leung TY, Lo KW, Fok WY, Rogers MS. Effect of external cephalic version at term on fetal circulation. Am J Obstet Gynecol 2000;182:1239–1242.
   PubMed Web of Science ®Google Scholar
• Lau TK, Lo KW, Leung TY, Fok WY, Rogers MS. Outcome of labour after successful external cephalic version at term complicated by isolated transient fetal bradycardia. BJOG 2000;107:401–405.
   PubMedGoogle Scholar
• Mancuso KM, Yancey MK, Murphy JA, Markenson GR. Epidural analgesia for cephalic version: a randomized trial. Obstet Gynecol 2000;95:648–651.
   PubMed Web of Science ®Google Scholar
• Delisle MF, Kamani A, Douglas J, Bebbington M. Antepartum external cephalic version under spinal anesthesia: a randomized controlled trial [abstract]. Am J Obstet Gynecol 2001;185(6 Suppl):S115.
   Google Scholar
• Hollard A, Lyons C, Rumney P, Hunter M, Reed E, Nageotte M. The effect of intrathecal anesthesia on the success of external cephalic version. Am J Obst Gynecol 2003;189:S140.
   Google Scholar
• Weiniger CF, Ginosar Y, Elchalal U, Sharon E, Nokrian M, Ezra Y. External cephalic version for breech presentation with or without spinal analgesia in nulliparous women at term: a randomized controlled trial. Obstet Gynecol 2007;110:1343–1350.
   PubMedGoogle Scholar
• Weiniger CF, Ginosar Y, Elchalal U, Sela HY, Weissman C, Ezra Y. Randomized controlled trial of external cephalic version in term multiparae with or without spinal analgesia. Br J Anaesth 2010;104:613–618.
   PubMedGoogle Scholar
• Yoshida M, Matsuda H, Kawakami Y, Hasegawa Y, Yoshinaga Y, Hayata E, Asai K, et al. Effectiveness of epidural anesthesia for external cephalic version (ECV). J Perinatol 2010;30:580–583.
   PubMedGoogle Scholar
• Caughey AB, El-Sayed YY. Regional anesthesia for external cephalic version: its time has come. J Perinatol 2010;30:569–570.
   PubMedGoogle Scholar