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Klin Med (Mosk) ; 85(10): 31-4, 2007.
Artigo em Russo | MEDLINE | ID: mdl-18154176

RESUMO

Intracardiac asynchronism presents systolic and/or diastolic dyscoordination in different myocardial areas within one and/or between different cardiac chambers. QRS complex widening is the marker of electric asynchronism. In 1/3 of patients with chronic cardiac insufficiency (CCI), the width of QRS complex is more than 120 msec. sixty-five CCI patients (56 men aged 63.7 +/- 7.3 years and 9 women aged 66.8 +/- 8.2 years) were divided into two groups: the group with a wide QRS (more than 120 msec) and the group with a narrow QRS (less than 120 msec), 30 and 35 patients, respectively. In the group with a wide QRS, 96.6% of patients suffered from clinically significant CCI (functional class III to IV); in the other group it was observed in 65.7% of patients. The patients were observed during three years. CCI dynamics was evaluated, quality of life was assessed using the Russian version of SF questionnaire, and three-year survival rate was assessed by Kaplan-Meyer method. The presence of electric asynchronism in a form of a wide QRS complex promotes CCI progression, accompanied by CCI functional class deterioration as well as clinical worsening and decreased physical exercise tolerance according to 6-min walking test. The frequency of seeking medical aid was significantly higher among patients with a wide QRS complex.


Assuntos
Baixo Débito Cardíaco/fisiopatologia , Sistema de Condução Cardíaco/fisiopatologia , Idoso , Baixo Débito Cardíaco/diagnóstico por imagem , Baixo Débito Cardíaco/patologia , Doença Crônica , Ecocardiografia Doppler em Cores , Eletrocardiografia , Tolerância ao Exercício , Feminino , Sistema de Condução Cardíaco/diagnóstico por imagem , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Estudos Retrospectivos , Índice de Gravidade de Doença , Inquéritos e Questionários , Caminhada
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