Direct recording of sinus node potentials using electrode catheter techniques.
Clin Cardiol
; 17(4): 203-6, 1994 Apr.
Article
en En
| MEDLINE
| ID: mdl-8187371
Direct recording of sinus node (SN) potentials using electrode catheter techniques is feasible and may be achieved in 50-86% of patients. It takes 15-30 min using commercially available catheters. However, obtaining stable recordings is often difficult, necessitating direct contact of the distal electrode with the endocardial area underlying the sinus node. There is a wide range in sinoatrial (SA) intervals (30-150 ms) obtained, and an overlap exists between patients with normal and abnormal SN function. Consequently, measurement of the SA interval alone may not be a reliable tool for diagnosing SN dysfunction. However, direct SN recordings have a theoretic value, allowing differentiation of disorders of SA conduction from disorders of the impulse generation.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Nodo Sinoatrial
/
Cateterismo Cardíaco
/
Electrocardiografía
/
Electrodos
Límite:
Humans
Idioma:
En
Revista:
Clin Cardiol
Año:
1994
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Estados Unidos