T-wave alternans and beat-to-beat variability of repolarization: pathophysiological backgrounds and clinical relevance.
Acta Cardiol
; 67(6): 713-8, 2012 Dec.
Article
em En
| MEDLINE
| ID: mdl-23393943
ABSTRACT
In this review, we focus on temporal variability of cardiac repolarization. This phenomenon has been related to a higher risk for ventricular arrhythmia and is therefore interesting as a marker of sudden cardiac death risk. We review two non-invasive clinical techniques quantifying repolarization variability T-wave alternans (TWA) and beat-to-beat variability of repolarization (BVR). We discuss their pathophysiological link with ventricular arrhythmia and the current clinical relevance of these techniques.
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Base de dados:
MEDLINE
Assunto principal:
Arritmias Cardíacas
/
Eletrocardiografia
/
Sistema de Condução Cardíaco
/
Frequência Cardíaca
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Acta Cardiol
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Bélgica