Predictive value of clinical and electrophysiological variables in patients with chronic chagasic cardiomyopathy and nonsustained ventricular tachycardia

Predictive value of clinical and electrophysiological variables in patients with chronic chagasic cardiomyopathy and nonsustained ventricular tachycardia

Autor Silva, Rose Mary Ferreira Lisboa Da Autor UNIFESP Google Scholar
Távora, Maria Zildany Pinheiro Autor UNIFESP Google Scholar
Gondim, Fernando Antônio Aquino Autor UNIFESP Google Scholar
Metha, Niraj Autor UNIFESP Google Scholar
Hara, Vanderlei Mitsuo Autor UNIFESP Google Scholar
De Paola, Angelo Amato Vincenzo Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo OBJECTIVE: Risk stratification of patients with nonsustained ventricular tachycardia (NSVT) and chronic chagasic cardiomyopathy (CCC). METHODS: Seventy eight patients with CCC and NSVT were consecutively and prospectively studied. All patients underwent to 24-hour Holter monitoring, radioisotopic ventriculography, left ventricular angiography, and electrophysiologic study. With programmed ventricular stimulation. RESULTS: Sustained monomorphic ventricular tachycardia (SMVT) was induced in 25 patients (32%), NSVT in 20 (25.6%) and ventricular fibrillation in 4 (5.1%). In 29 patients (37.2%) no arrhythmia was inducible. During a 55.7-month-follow-up, 22 (28.2%) patients died, 16 due to sudden death, 2 due to nonsudden cardiac death and 4 due to noncardiac death. Logistic regression analysis showed that induction was the independent and main variable that predicted the occurrence of subsequent events and cardiac death (probability of 2.56 and 2.17, respectively). The Mantel-Haenszel chi-square test showed that survival probability was significantly lower in the inducible group than in the noninductible group. The percentage of patients free of events was significantly higher in the noninducible group. CONCLUSION: Induction of SMVT during programmed ventricular stimulation was a predictor of arrhythmia occurrence cardiac death and general mortality in patients with CCC and NSVT.
Palavra-chave Chagasic heart disease
nonsustained ventricular tachycardia
electrophysiologic study
Idioma Inglês
Data de publicação 2000-07-01
Publicado em Arquivos Brasileiros de Cardiologia. Sociedade Brasileira de Cardiologia - SBC, v. 75, n. 1, p. 41-47, 2000.
ISSN 0066-782X (Sherpa/Romeo)
Publicador Sociedade Brasileira de Cardiologia - SBC
Extensão 41-47
Fonte http://dx.doi.org/10.1590/S0066-782X2000000700004
Direito de acesso Acesso aberto Open Access
Tipo Artigo
SciELO S0066-782X2000000700004 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/1000

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