Key result
Continued growth of a nonviable twin after first-trimester death suggests twin reversed arterial perfusion syndrome.
Describes the prenatal identification of twin reversed arterial perfusion syndrome in the first trimester.
May warrant monitoring for TRAPS after early single demise in monochorionic twins; leaves open confirmation in larger prospective series.
A twin pregnancy in which a single fetal death was diagnosed in the first trimester is described. Continued growth of the nonviable twin suggested the occurrence of the twin reversed arterial perfusion syndrome.
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Stiller et al. (1989) studied this question. Continued growth of a nonviable twin after a first-trimester diagnosis of single fetal death suggests the development of twin reversed arterial perfusion syndrome.