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. 1999 Sep-Oct;8(5):203-7.
doi: 10.1002/(SICI)1520-6661(199909/10)8:5<203::AID-MFM1>3.0.CO;2-Y.

Outcome of external cephalic version after 36 weeks' gestation without tocolysis

L Impey  1 , D Lissoni
Affiliations

Outcome of external cephalic version after 36 weeks' gestation without tocolysis

L Impey et al. J Matern Fetal Med. 1999 Sep-Oct.

Abstract

Objective: Despite its efficacy, external cephalic version (ECV) at term is not universally employed. Published series of Caucasian women are small and concerns regarding safety and spontaneous version remain. We review the outcomes of 26 months of a breech clinic in a Dublin teaching hospital.

Methods: All women with known breech presentation at 36+ weeks were referred unless another indication for cesarean section existed. Unstable lie, fetal compromise, antepartum hemorrhage, and patient refusal were the only contraindications to ECV. One operator attempted all versions, without tocolysis.

Results: Three hundred seventy women were referred and in 356 (95%), version was attempted at a mean gestation of 37 + 3 weeks; 195 (55%) were nulliparous and 161 (45%) were multiparous. The success rate was 43%, including 33% of nulliparous and 54% of multiparous women. There were three perinatal deaths (0.8%), all unrelated to the version. Minor complications were rare, although two women were delivered by cesarean section shortly after unsuccessful version. Ninety-three percent of successful versions were cephalic at delivery, as were 4% of unsuccessful versions; 12% of infants with a cephalic presentation after successful version were delivered by cesarean section.

Conclusions: From this large series, ECV is extremely safe. Spontaneous version after unsuccessful ECV and reversion after successful ECV are unusual.

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