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Gaceta Médica Boliviana
versão On-line ISSN 1012-2966
Resumo
MAITA, Freddy; ALI, Reynaldo e VALDIVIESO, Luis. Twin Reverse Arterial Perfusion Sequence (TRAP): clinical case report of expectant management . Gac Med Bol [online]. 2020, vol.43, n.2, pp.228-231. ISSN 1012-2966.
TRAP describes the chronic perfusion of an “acardiac” twin by a “pump” twin through permeable interlocking vascular channels. TRAP occurs in 1 in 35,000 births or 1 in 100 pairs of monozygotic twins. It is diagnosed by ultrasound findings of a normally developing fetus and an amorphous mass often with noticeable fetal parts. Color Doppler reveals the reverse blood flow to the acardiac twin within the umbilical artery, leading to typical complications of the condition. Expectant management is reasonable in the absence of poor prognostic characteristics. The purpose of this article is to review the basic aspects and current status of this condition, emphasizing the diagnosis and expectant management.
Palavras-chave : Twin reversed arterial perfusion sequence; Acardiac twin; Monochorionic twins.