Validation of inter-atrial conduction time measurement by means of echo-Doppler.
Arch Cardiol Mex
; 72(2): 125-8, 2002.
Article
em En
| MEDLINE
| ID: mdl-12148331
BACKGROUND: Little is known about the correlation between the inter-atrial conduction time (IACT) measured at the electrophysiology laboratory and the interval measured from the beginning of the electrocardiographic P wave to the initiation of the A wave in the mitral Doppler signal (P-A interval). HYPOTHESIS: IACT can be assessed by means of echo-Doppler. METHODS: We studied 21 patients who were referred to our arrhythmia clinic for evaluation of supraventricular tachycardia. During the electrophysiological study, the IACT was measured from the first rapid deflection of the A wave recorded with the high right atrial catheter to the A wave recorded with the coronary sinus catheter. An independent observer measured the P-A interval. Both the electrophysiological and echo-Doppler measurements were corrected for heart rate. RESULTS: P-A interval was slightly longer than IACT (83.36 +/- 23.91 vs 80.77 +/- 24.11 msec; p = 0.042), but a very good correlation was found between both measurements (r2 = 0.94). CONCLUSIONS: IACT can be non-invasively assessed by measuring the P-A interval.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Taquicardia Supraventricular
/
Ecocardiografia Doppler
/
Átrios do Coração
/
Sistema de Condução Cardíaco
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Arch Cardiol Mex
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Venezuela
País de publicação:
México