Related Experiment Videos
Umbilical vessel flow velocity waveforms in cord entanglement in a monoamnionic multiple gestation. A case report
A D Kofinas1, M Penry, C G Hatjis
1Department of Obstetrics and Gynecology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, North Carolina.
The Journal of Reproductive Medicine
|April 1, 1991
Summary
In monoamniotic twins, a unique umbilical artery and vein flow pattern indicated severe cord entanglement. This finding necessitates urgent fetal well-being assessment due to potential cord accidents.
Area of Science:
- Perinatology
- Fetal Medicine
- Obstetrics
Background:
- Monoamniotic twins share a single amniotic sac, increasing risks of umbilical cord entanglement.
- Cord entanglement can lead to fetal compromise and adverse pregnancy outcomes.
Observation:
- An unusual umbilical artery and vein flow velocity waveform pattern was observed.
- The umbilical artery systolic:diastolic ratio was elevated above the 95th percentile, with diastolic notching.
- The umbilical vein waveform exhibited pulsatility and absent diastolic flow.
Findings:
- The observed flow pattern is a strong indicator of severe umbilical cord entanglement.
- This specific Doppler ultrasound finding suggests a significant cord accident.
Implications:
- Immediate evaluation of fetal well-being is mandated upon observing this pattern.
- Early detection through Doppler assessment can prompt timely intervention for at-risk monoamniotic twin pregnancies.
- This case highlights the importance of detailed umbilical flow velocity waveform analysis in high-risk multiple gestations.