Related Experiment Video
Updated: Jul 11, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
Selective cord coagulation in acardiac twins.
1Department of Obstetrics and Fetal Medicine, University Medical Centre, Hamburg-Eppendorf (UKE), Martinistrasse 52, 20246 Hamburg, Germany. wdiehl@uke.uni-hamburg.de
Twin reverse arterial perfusion (TRAP) sequence is a severe complication of twin pregnancies. Fetoscopic laser coagulation offers an effective treatment, achieving an 80% survival rate for the pump twin.
Area of Science:
- Maternal-Fetal Medicine
- Reproductive Medicine
- Surgical Innovation
Background:
- Twin reverse arterial perfusion (TRAP) sequence is a severe complication in monochorionic pregnancies.
- The acardiac twin endangers the pump twin through cardiac failure or preterm delivery risks.
- Current TRAP management lacks a universally optimal surgical technique due to rarity and varied presentations.
Purpose of the Study:
- To evaluate the efficacy of fetoscopic laser coagulation in managing TRAP sequence.
- To assess the outcomes of minimally invasive surgical interventions for TRAP syndrome.
Main Methods:
- Fetoscopic laser coagulation of placental vascular anastomoses or the acardiac twin's umbilical cord.
- Potential use of bipolar forceps as an adjunct minimally invasive surgical technique.
Main Results:
- Fetoscopic laser coagulation demonstrated an 80% survival rate for the pump twin.
- 67% of pregnancies with surviving pump twins progressed beyond 36 weeks gestation without further complications.
Conclusions:
- Fetoscopic laser coagulation is an effective treatment option for TRAP sequence.
- Minimally invasive surgical techniques offer promising outcomes in managing this rare condition.
More Related Videos
09:52Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
Published on: September 5, 2011
09:51Model Surgical Training: Skills Acquisition in Fetoscopic Laser Photocoagulation of Monochorionic Diamniotic Twin Placenta Using Realistic Simulators
Published on: March 21, 2018