Related Experiment Video
Updated: Feb 6, 2026

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Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
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A Modified Technique for Cord Transection in Monochorionic Monoamniotic Twin Pregnancies
Fetal Diagnosis and Therapy
|August 9, 2018
Summary
Monochorionic monoamniotic twins face high risks of intrauterine demise. A modified fetoscopic laser cord transection technique using grasping forceps offers a safe and effective method to protect the surviving twin.
Area of Science:
- Maternal-Fetal Medicine
- Fetal Surgery
- Reproductive Medicine
Background:
- Monochorionic monoamniotic (MA) twins are at high risk for intrauterine demise (IUD) and discordant anomalies.
- Selective feticide via cord occlusion is an option, but the surviving co-twin remains at risk for IUD due to cord entanglement.
- Umbilical cord transection is recommended to protect the survivor, but the procedure can be technically challenging.
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