Related Experiment Video
Updated: Jul 19, 2026
Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
Delivery of the second twin
1Northwestern University Medical School, Chicago, IL, USA. cvsguy1@aol.com
Objective:
To determine the likelihood of cesarean for the second twin after vaginal delivery of the first and the risk of vaginal delivery.
Method:
A retrospective analysis of twin deliveries was performed on 10,365 live born twin pairs (20,730 births), using birth certificate data from the State of Illinois from 1997 through 2000.
Result:
The incidence of cesarean for the second twin after vaginal delivery of the first was 10.1%. The greatest incidence of failed vaginal delivery of the second twin was in the vertex/non-vertex group. Five-minute Apgar scores <4 were significantly more frequent in vaginally delivered twins <2000 g compared to those delivered via cesarean (p<0.001).
Conclusion:
Twin presentation type is predictive of the likelihood of a failed vaginal delivery of the second twin. Cesarean appears to significantly reduce the incidence of Apgars <4 for neonates <2000 g.
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