Function of atrioventricular node conduction: hyperbolic model.
Rev Esp Fisiol
; 37(2): 221-30, 1981 Jun.
Article
en En
| MEDLINE
| ID: mdl-7313279
ABSTRACT
Twenty four patients were subjected to an electrophysiologic clinical procedure. The conventional extrastimulus test was applied to verify the relation between conduction time increase through the atrioventricular node of the extrastimulus beat (delta AH), and its preceding interval (A1A2). Following the least square root method the parameters of the hyperbolic model delta AH.A1A2 = m . delta AH + n were adjusted. The correlation coefficients obtained and tested in all cases were very high and significant. From this hyperbolic equation it was possible to determine the equations for the effective refractory period (ERPe = m) and functional refractory period (FRPe = ERPe + n). The theoretical values for refractoriness approached very closely those of the actually measured ERP and FRP, in all cases. This model proved to be, in respect to adjustments and especially in calculating refractory periods, at least as good as the exponential model proposed previously by other authors.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Nodo Atrioventricular
/
Sistema de Conducción Cardíaco
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Modelos Cardiovasculares
Límite:
Adolescent
/
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Rev Esp Fisiol
Año:
1981
Tipo del documento:
Article