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Aleteo auricular atípico originado en la pared libre auricular derecha
J G Kall1, D S Rubenstein, D E Kopp
1University of Chicago, Chicago, Illinois, USA. jkall@medicine.bsd.uchicago.edu
Circulation
|January 25, 2000
Resumen
El aleteo auricular atípico puede ocurrir en la pared libre auricular derecha, no solo cerca del anillo tricúspide. La ablación lineal dirigida a esta área elimina efectivamente esta forma de aleteo auricular, evitando la recurrencia.
Área de la Ciencia:
- Cardiología Cardiología.
- Electrofisiología y electrofisiología.
- Las arritmias cardíacas son arritmias cardíacas.
Sus antecedentes:
- Los circuitos macro-reentrantes en el aleteo auricular pueden verse influenciados por barreras alejadas del istmo típico.
- Existen datos limitados sobre el aleteo auricular atípico (AAFL) en humanos.
Objetivo del estudio:
- Para caracterizar e investigar la ablación de AAFL que se origina en la pared libre auricular derecha.
Principales métodos:
- Mapeo y ablación por radiofrecuencia en pacientes sometidos a una ablación típica de aleteo auricular.
- Mapeo electroanatómico de alta densidad de circuitos reentrantes.
- Ablación lineal dirigida a la aurícula derecha inferolateral.
Principales resultados:
- AAFL se identificó en 6 de 160 pacientes referidos para la ablación típica del aleteo auricular.
- La ablación por radiofrecuencia de una línea de bloqueo auricular derecha a la vena cava inferior terminó con AAFL.
- No se observó recurrencia de AAFL durante el seguimiento (promedio de 18 meses).
Conclusiones:
- El aleteo auricular puede originarse en la pared libre auricular derecha.
- Este AAFL puede explicar el aleteo previamente inexplicable en algunos pacientes.
- La ablación lineal en la aurícula derecha inferolateral es un tratamiento eficaz para este AAFL.
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