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Updated: Aug 8, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
Monoamniotic twins: diagnosis and management
1Department of Obstetrics and Gynecology, National University Hospital, Singapore. su_lin_lin@hotmail.com
Monoamniotic twins face high risks, including cord entanglement and preterm birth. Early diagnosis via ultrasound and delivery around 32 weeks, often by Cesarean section, are key to improving outcomes.
Area of Science:
- Maternal-Fetal Medicine
- High-Risk Obstetrics
- Perinatology
Background:
- Monoamniotic twins are rare but linked to significant antenatal and perinatal complications.
- Complications include cord entanglement, congenital anomalies, twin-twin transfusion syndrome, growth restriction, and preterm delivery.
Purpose of the Study:
- To review current diagnostic criteria for monoamniotic twins.
- To evaluate contemporary management strategies for monoamniotic twins.
Main Methods:
- Comprehensive literature search utilizing Medline and OVID databases.
- Analysis of diagnostic criteria and management recommendations for monoamniotic twins.
Main Results:
- Diagnosis relies on specific ultrasonographic criteria.
- Regular antepartum fetal heart monitoring and serial sonograms with umbilical artery Doppler are generally recommended.
- Delivery is often advised around 32 weeks gestation to mitigate risks associated with cord entanglement.
Conclusions:
- Management of monoamniotic twins requires careful monitoring and timely intervention.
- While Cesarean section is preferred, vaginal delivery may be possible in select cases.
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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
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