Selección de pacientes a terapia de resincronización cardíaca: el papel de la ecocardiografía / Selection of patients for resynchronization therapy: the role of echocardiography
Arch. cardiol. Méx
;
77(supl.2): S2-14-S2-23, abr.-jun. 2007. ilus
Artigo
em Espanhol
| LILACS
| ID: lil-568857
ABSTRACT
Heart failure is one of the most prevalent diseases in industrialized countries in especial persons more 65 years. In the last 2 decades new therapies have been investigated and first time it had improved quality of life and survival. However, up to 30% of the patients with advanced heart failure present disturbances in inter and intraventricular conduction, and this produces asynchrony or dyssynchrony of ventricular contractility, leading to further deterioration in heart function. Cardiac resynchronization therapy can improve the synchrony of ventricular contractility. Numerous studies have demonstrated the benefits of biventricular stimulation therapy for improving hemodynamic parameters, quality of life, 6- minute walking test performance and functional class in patients with heart failure, ventricular systolic dysfunction and disturbances in intraventricular conduction. Around 30% of patient do not respond to resynchronization therapy. There is a poor correlation between QRS interval and mechanical asynchrony. Echocardiography is better at assessing mechanical asynchrony than QRS interval measurement. The aim of this article was to review the different techniques echocardiography's to guide in the selection patients who benefice of resynchronization therapy.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Ecocardiografia
/
Estimulação Cardíaca Artificial
/
Insuficiência Cardíaca
Limite:
Idoso
/
Humanos
Idioma:
Espanhol
Revista:
Arch. cardiol. Méx
Assunto da revista:
Cardiologia
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
México
Instituição/País de afiliação:
Instituto Nacional de Cardiología Ignacio Chávez/MX
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