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Twin-twin transfusion syndrome during the 2nd trimester is associated with small intertwin hemoglobin differences
N J Saunders1, R J Snijders, K H Nicolaides
1Harris Birthright Research Centre for Fetal Medicine, King's College School of Medicine, London, UK.
Fetal Diagnosis and Therapy
|January 1, 1991
Abstract:
In four twin pregnancies presenting with acute 2nd-trimester polyhydramnios due to presumed twin-twin transfusion syndrome, the fetal hemoglobin concentration was measured in samples obtained by cordocentesis. In no instance did the twin pair difference in the hemoglobin concentration exceed 2.7 g/dl.