‘TRAP-ped with an Acardius’: Case Series of Twin Reversed Arterial Perfusion (TRAP) Sequence and Review of Literature

Philipp Quaas; Filiz Markfeld-Erol

doi:10.1007/s40556-020-00286-z

Journal of Fetal Medicine, Table of Contents

CC BY-NC-ND 4.0 · Journal of Fetal Medicine 2021; 08(01): 27-33
DOI: 10.1007/s40556-020-00286-z

Original Article

‘TRAP-ped with an Acardius’: Case Series of Twin Reversed Arterial Perfusion (TRAP) Sequence and Review of Literature

Philipp Quaas

¹Department of Obstetrics and Gynecology, University Hospital, University of Basel, Basel, Switzerland

,

Filiz Markfeld-Erol

²Department of Obstetrics and Gynecology, University Hospital, University of Freiburg, Freiburg, Germany

› Author Affiliations

Abstract

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Abstract

Twin reversed arterial perfusion (TRAP) sequence is a rare but severe condition that affects monochorionic (MC) multifetal pregnancies. In twin pregnancies, it is characterized by a normally developed twin and another twin with missing heart function (acardiac twin or TRAP twin). A variety of risks and complications may affect the normal twin. Management of such pregnancies can be either expectant or interventional. We report four cases of TRAP sequence treated in our institutions and supply an overview on currently existing literature. This case series demonstrates the heterogeneity in manifestations and clinical course of patients affected by this condition. Furthermore, it includes an acardius amorphous of considerable size delivered at 35.6 weeks of gestation.

Keywords

Monochorionic (MC) pregnancies - Twin reversed arterial perfusion (TRAP) sequence - Acardiac twin - Fetoscopic laser surgery (FLS) - Case series

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