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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 
1   Department of Obstetrics and Gynecology, University Hospital, University of Basel, Basel, Switzerland
,
Filiz Markfeld-Erol
2   Department of Obstetrics and Gynecology, University Hospital, University of Freiburg, Freiburg, Germany
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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


Publication History

Received: 31 August 2020

Accepted: 21 December 2020

Article published online:
05 May 2023

© 2021. Society of Fetal Medicine. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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