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Cardiology ; 112(1): 69-73, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-18580063

RESUMO

Four patients with chronically well-compensated, non-ischemic dilated cardiomyopathy (NIDC) presented with occlusive atherosclerotic coronary artery disease as the cause of subacute decompensation (FC III-IV heart failure) 8-13 years following the diagnosis of NIDC. In addition to the atherogenic condition of heart failure, 3 of the patients acquired major atherosclerotic risk factors (dyslipidemia, diabetes mellitus) during the interval between the diagnoses of NIDC and problematic atherosclerotic coronary disease. For each patient, dyspnea on exertion was the primary symptom during the subacute decompensation. Only 1 patient noted precordial chest pain in the form of atypical angina during some of the dyspneic events. The diagnosis of occlusive coronary artery disease was made by coronary angiography, followed by angioplasty-stent deployment in 3 patients and coronary artery bypass surgery in 1; all improved to their baseline FC I-II status following these coronary interventions. As survival of patients with NIDC increases, occlusive coronary artery disease may enter an otherwise stable clinical course to provoke unanticipated decompensation (principally dyspnea), and can do so without causing angina pectoris as a heralding symptom.


Assuntos
Angina Pectoris/etiologia , Cardiomiopatia Dilatada/etiologia , Doença da Artéria Coronariana/complicações , Insuficiência Cardíaca/etiologia , Adulto , Angina Pectoris/epidemiologia , Cardiomiopatia Dilatada/epidemiologia , Doença da Artéria Coronariana/epidemiologia , Progressão da Doença , Feminino , Insuficiência Cardíaca/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
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