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Acta Médica Costarricense
On-line version ISSN 0001-6002Print version ISSN 0001-6012
Abstract
JIMENEZ-ARREDONDO, Laura; BENAVIDES-SANCHEZ, Daniel; URENA-ALMANZA, Néstor and BUSTILLOS-VILLAVICENCIO, Joaquín. Twin Reversed Arterial Perfusion, TRAP. Acta méd. costarric [online]. 2016, vol.58, n.4, pp.182-184. ISSN 0001-6002.
Considered an exclusive complication of monochorionic gestations, the TRAP sequence is characterize by the presence of a malformed fetus with a rudimentary or absent heart, in which there is an perfusion from the structurally normal twin to the acardiac fetus and a 100% mortality in the acardiac fetus and 50% in the healthy one. We present a clinical case of a 15 years old patient with monochorionic twin pregnancy of 27 weeks, referred to Hospital San Juan de Dios, where daily monitoring with ultrasound was done and an abnormal collision-summantion pattern was documented and reported. After 7 days of admission chorioamnionitis was suspected and termination of the pregnancy was decided resulting in a viable product and another with multiple malformations.
Keywords : acardiac twinning; fetal therapy; TRAP sequence; Doppler ultrasound; collision-summation.