Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia
Subvalvular left ventricular aneurysm is a rare disease of obscure origin suggesting unique causes such as congenital, traumatic, and inflammatory or infectious diseases. Its mortality is closely related to heart failure, mitral insufficiency, thromboembolic phenomena, and cardiac arrhythmias. Altho...
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doaj-d6714feb3b1c4d2e85eadfc79f1d9b742020-11-25T00:54:27ZengHindawi LimitedCase Reports in Cardiology2090-64042090-64122015-01-01201510.1155/2015/213104213104Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular TachycardiaTereza Augusta Grillo0Guilherme Rafael S. Athayde1Ana Flávia L. Belfort2Reynaldo C. Miranda3Andrea Z. Beaton4Bruno R. Nascimento5Electrophysiology Department, Hospital Universitário São José-INCOR Minas, 30140-073 Belo Horizonte, MG, BrazilDivision of Cardiology and Cardiovascular Surgery, Hospital das Clínicas, Universidade Federal de Minas Gerais, 30130-100 Belo Horizonte, MG, BrazilSchool of Medicine, Universidade Federal de Minas Gerais, 30130-100 Belo Horizonte, MG, BrazilElectrophysiology Department, Hospital Universitário São José-INCOR Minas, 30140-073 Belo Horizonte, MG, BrazilChildren’s National Health System, Washington, DC 20010, USAInterventional Cardiology Department, Hospital Universitário São José-INCOR Minas, 30140-073 Belo Horizonte, MG, BrazilSubvalvular left ventricular aneurysm is a rare disease of obscure origin suggesting unique causes such as congenital, traumatic, and inflammatory or infectious diseases. Its mortality is closely related to heart failure, mitral insufficiency, thromboembolic phenomena, and cardiac arrhythmias. Although association with coronary artery disease is not described, the compression of epicardial vessels by the aneurysm may lead to ischemic manifestations. We report here a case of mitral subvalvular left ventricular aneurysm of probable chagasic origin, in a patient with normal left ventricular function evolving with repeated episodes of monomorphic ventricular tachycardia, despite noninducible electrophysiological testing and the use of optimal medical treatment, including amiodarone. The indication for implantable cardioverter-defibrillator in patients with Chagas cardiomyopathy and segmental wall motion abnormalities but without global systolic dysfunction remains unclear in literature, even in the presence of complex ventricular arrhythmias. A brief review of the literature on morphological features, diagnosis, prognosis, and treatment will be also discussed.http://dx.doi.org/10.1155/2015/213104 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tereza Augusta Grillo Guilherme Rafael S. Athayde Ana Flávia L. Belfort Reynaldo C. Miranda Andrea Z. Beaton Bruno R. Nascimento |
spellingShingle |
Tereza Augusta Grillo Guilherme Rafael S. Athayde Ana Flávia L. Belfort Reynaldo C. Miranda Andrea Z. Beaton Bruno R. Nascimento Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia Case Reports in Cardiology |
author_facet |
Tereza Augusta Grillo Guilherme Rafael S. Athayde Ana Flávia L. Belfort Reynaldo C. Miranda Andrea Z. Beaton Bruno R. Nascimento |
author_sort |
Tereza Augusta Grillo |
title |
Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia |
title_short |
Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia |
title_full |
Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia |
title_fullStr |
Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia |
title_full_unstemmed |
Mitral Subvalvular Aneurysm in a Patient with Chagas Disease and Recurrent Episodes of Ventricular Tachycardia |
title_sort |
mitral subvalvular aneurysm in a patient with chagas disease and recurrent episodes of ventricular tachycardia |
publisher |
Hindawi Limited |
series |
Case Reports in Cardiology |
issn |
2090-6404 2090-6412 |
publishDate |
2015-01-01 |
description |
Subvalvular left ventricular aneurysm is a rare disease of obscure origin suggesting unique causes such as congenital, traumatic, and inflammatory or infectious diseases. Its mortality is closely related to heart failure, mitral insufficiency, thromboembolic phenomena, and cardiac arrhythmias. Although association with coronary artery disease is not described, the compression of epicardial vessels by the aneurysm may lead to ischemic manifestations. We report here a case of mitral subvalvular left ventricular aneurysm of probable chagasic origin, in a patient with normal left ventricular function evolving with repeated episodes of monomorphic ventricular tachycardia, despite noninducible electrophysiological testing and the use of optimal medical treatment, including amiodarone. The indication for implantable cardioverter-defibrillator in patients with Chagas cardiomyopathy and segmental wall motion abnormalities but without global systolic dysfunction remains unclear in literature, even in the presence of complex ventricular arrhythmias. A brief review of the literature on morphological features, diagnosis, prognosis, and treatment will be also discussed. |
url |
http://dx.doi.org/10.1155/2015/213104 |
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