ISSN 0326-646X





Sumario Vol. 42 - Nº 2 Abril - Junio 2013

Right Atrium Thrombus and Left Atrial Myxoma
in a Patient with Antiphospholipid Syndrome

Diego D. Zanazzi, Roberto P. Llamazares, Guillermo W. Benitez

Servicio de Cardiología, Hospital Julio C. Perrando.
9 de Julio 1100. Resistencia (3500), Chaco.
Correo electrónico

The authors declare not having a conflict of interest.
Rev Fed Arg Cardiol. 2013; 42(2): 155-156

Print version Imprimir sólo la columna central


Antiphospholipid syndrome is a hypercoagulable state mediated by antibodies (anticardiolipins or lupus anticoagulant) that is characterized by the recurrence of fetal losses and arterial and venous thromboembolic events. Its frequency in patients that present a venous thromboembolic episode, ranges from 4 to 14% [1].

Due to the increased risk of recurrent thromboembolic episodes in these patients, the current guidelines suggest extending antithrombotic therapy after an initial event, probably for life.

The images of Figures 1 and 2 correspond to a 30-year-old woman, with diagnosis of antiphospholipid syndrome that came to the medical office because of stress dyspnea and peribuccal cyanosis, so transthoracic echocardiogram is indicated, showing a large mass (87 mm x 35 mm), hypermobile in the right atrium, that protrudes in the right ventricle through the tricuspid valve (Figure 1A). Moreover, another mobile mass is identified (20 mm x 25 mm), rounded, more dense, in the left atrium, adhered to the interatrial septum (Figure 1B). Both masses are initially assumed as biatrial thrombosis, so it is decided to make a surgical intervention [2-3]. In the surgical act, the tumors are removed from both atria (Figures 2A and B). The histopathological study reports that it is a thrombus in the right atrium and a myxoma in the left atrium.

Figure 1A and B. Masses in the right and left atria


Figure 2A and B. Thrombus in the right atrium and left atrial myxoma





  1. Alonso Santor JE, Inglada Galiana L, Perez Paredes G. Síndrome antifosfolípido, estado actual. An Med Interna 2007; 24 (5): 242-8.
    2. Rose PS, Punjabi NM, Pearse DB. Treatment of right heart thromboemboli. CHEST 2002; 121 (3): 806-14.
    3. Chartier L, Béra J, Delomez M, Asseman P, et al. Free-floating thrombi in the right heart: Diagnosis, management and prognostic indexes in 38 consecutive patients. Circulation 1999; 99: 2779-83.

Publication: June 2013

Editorial Electrónica
de FAC

8vo. Congreso Virtual de Cardiología

1º Setiembre al
30 Noviembre, 2013

XXXI Congreso Nacional de Cardiología

30-31 Mayo,
1º Junio, 2013
Organiza: Región Patagónica

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