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Twin transfusion syndrome: reassessment of ultrasound diagnosis
J M Jones1, A J Sbarra, C L Cetrulo
1Departments of Maternal Fetal Medicine, Medical Research Laboratories, St. Margaret's Hospital for Women, Boston, Massachusetts, USA.
Objective:
To assess the antenatal ultrasonic diagnosis of the twin transfusion syndrome, an enigmatic disorder that results in an imbalance in the blood flow between monochorionic twins.
Study Design:
Retrospective review of 16 cases of twin transfusion syndrome confirmed by placental pathology and neonatal data.
Results:
A disparity in antenatal fetal weights, size difference between the two amniotic sacs and a single placenta were present in 81% (13/16) of confirmed cases. The finding of two separate umbilical cords with a disparity in the size or number of vessels was rare. Evidence of hydrops in either fetus or findings of congestive cardiac failure in the recipient twin were uncommon.
Conclusion:
Our data strongly suggest that the twin transfusion syndrome can be diagnosed in a significant number (81%) of cases. The syndrome is variable, and it is rare to observe all the diagnostic criteria in one case.
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