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Revista Argentina de Cardiología
Article . 2026 . Peer-reviewed
License: CC BY NC SA
Data sources: Crossref
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La brecha excitable en la taquicardia auriculoventricular por reentrada nodal

pp 563-577
Authors: C. D. Schuger; K. M. Monahan;

La brecha excitable en la taquicardia auriculoventricular por reentrada nodal

Abstract

La taquicardia auriculoventricular por reentrada nodal es una causa común de taquicardia con complejos angostos y es la arritmia supraventricular paroxística encontrada más frecuentemente en la práctica clínica. Los avances en las técnicas de ablación por catéter han destacado la importancia del conocimiento más completo del sustrato anatómico y electrofisiológico de esta taquiarritmia. El circuito más común resulta de la disociación longitudinal de la conducción en el nódulo AV, en un componente anterógrado "lento" y otro retrógrado "rápido" . Cuando la taquicardia se debe a reentrada funcional o anatómica, una brecha excitable está presente comúnmente entre la cola de refractariedad del último impulso de la taquicardia y el nuevo frente de onda . Un extraestímulo debería ser capaz de penetrar el circuito de rolentrada en un momento apropiado y activar el tejido excitable de un modo similar al del frente de onda reentrante . Este fenómeno se denomina reciclado (resetting) . Cuando el circuito de la taquicardia es penetrado por un tren de extraestímulos, resultando en un reciclado repetitivo, el fenómeno se denomina entrecruzamiento (entrainment) .

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average