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Selective termination procedures in monochorionic pregnancies.

Alexandra C Spadola1, Lynn L Simpson

  • 1Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, NY 10032, USA.

Seminars in Perinatology
|December 20, 2005
PubMed
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Selective fetal termination for monochorionic twins presents challenges due to shared circulation. New techniques like radiofrequency ablation show promise, aiming to improve survival rates and reduce complications such as preterm premature rupture of membranes.

Area of Science:

  • Maternal-Fetal Medicine
  • Perinatology
  • Fetal Surgery

Background:

  • Monochorionic twins share placental anastomoses, creating a common circulation.
  • This shared circulation complicates selective fetal termination for conditions like twin-twin transfusion syndrome.

Purpose of the Study:

  • To review current and emerging techniques for selective fetal termination in monochorionic twins.
  • To evaluate the efficacy and complications associated with various interruption methods.

Main Methods:

  • Review of existing literature on selective fetal termination techniques.
  • Comparison of laser coagulation, bipolar coagulation, and radiofrequency ablation.
  • Discussion of iatrogenic preterm premature rupture of membranes as a complication.

Related Experiment Videos

Main Results:

  • Laser coagulation is effective but limited in availability.
  • Bipolar coagulation is currently preferred for second-half-of-pregnancy procedures.
  • Radiofrequency ablation shows recent promise with minimal complications.

Conclusions:

  • Selective fetal termination in monochorionic twins requires careful consideration of technique.
  • Minimizing complications like preterm membrane rupture is crucial for improved twin survival.
  • Further research into percutaneous and noninvasive techniques is warranted.