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Related Experiment Video

Updated: Jun 10, 2026

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
09:52

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Published on: September 5, 2011

Radiofrequency ablation for selective reduction in complex monochorionic pregnancies.

G Paramasivam1, R Wimalasundera, M Wiechec

  • 1Centre for Fetal and Maternal Medicine, Queen Charlottes and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, UK.

BJOG : an International Journal of Obstetrics and Gynaecology
|August 21, 2010
PubMed
Summary
This summary is machine-generated.

Radiofrequency ablation offers a safe and effective method for selective fetal reduction in monochorionic pregnancies. This minimally invasive procedure achieved a high live-born rate with minimal complications.

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Last Updated: Jun 10, 2026

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Area of Science:

  • Maternal-Fetal Medicine
  • Interventional Radiology
  • Reproductive Medicine

Background:

  • Monochorionic pregnancies require specialized fetal reduction techniques.
  • Vaso-occlusive procedures are necessary to ablate blood flow for selective fetal demise.
  • Umbilical cord ablation is a common method for fetal reduction.

Purpose of the Study:

  • To evaluate the safety and efficacy of radiofrequency ablation for selective fetal reduction.
  • To assess outcomes in monochorionic pregnancies undergoing this procedure.
  • To report on live-born rates and complications associated with radiofrequency ablation.

Main Methods:

  • A case series of 35 monochorionic pregnancies (27 twins, 8 triplets).
  • Selective fetal reduction performed using radiofrequency ablation under local anesthesia.
  • Antenatal magnetic resonance imaging (MRI) used for post-procedure assessment.

Main Results:

  • Technical success in all procedures.
  • Live-born rate of 88.6%.
  • No maternal complications; two cases (5.7%) of abnormal brain imaging.

Conclusions:

  • Radiofrequency ablation is a safe and effective option for fetal reduction in complicated monochorionic pregnancies.
  • The procedure demonstrates a favorable live-born rate and low complication profile.
  • Further research can explore long-term neurodevelopmental outcomes.