Taquicardia recíproca de la unión auriculoventricular: características electrofisiológicas en un paciente con la variedad paroxística. Caso clínico

Rodrigo Isa P,Ismael Vergara S,Rolando González A,Mariana Baeza L

doi:10.4067/s0034-98872004000500011

Abstract

Junctional reciprocating tachycardia is an atrioventricular reentrant tachycardia whose anterograde conduction occurs via the His Purkinje and the retrograde conduction via an accessory pathway with slow conduction. The most common form is incessant tachycardia but a paroxysmal form also exists. We report a 35 years old female with recurrent paroxysmal tachycardia, that underwent electrophysiological evaluation. A left posterolateral accessory pathway was documented. Reciprocating paroxysmal tachycardia was induced by electrical stimulation and a successful pathway ablation was performed.

Highlights

Junctional reciprocating tachycardia is an atrioventricular reentrant tachycardia whose anterograde conduction occurs via the His Purkinje and the retrograde conduction via an accessory pathway with slow conduction
We report a 35 years old female with recurrent paroxysmal tachycardia, that underwent electrophysiological evaluation
Yagi y col[12] en un estudio comparativo de 5 pacientes con la variedad paroxística vs 6 pacientes con la variedad incesante, demostraron la importancia del análisis de las características de conducción retrógrada de los haces decrementales en el diagnóstico diferencial de estas dos formas de taquicardia

Summary

Introduction

Junctional reciprocating tachycardia is an atrioventricular reentrant tachycardia whose anterograde conduction occurs via the His Purkinje and the retrograde conduction via an accessory pathway with slow conduction. En estos pacientes el electrocardiograma en ritmo sinusal es normal y en taquicardia el intervalo RP es mayor que el PR, con una onda P negativa en DII, DIII, aVF y V4 a V6.

Results

Conclusion