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La actividad del apéndice auricular izquierdo se disfraza como potenciales de venas pulmonares.
Dipen Shah1, Michel Haissaguerre, Pierre Jais
1Division of Cardiology, University Hospital, Geneva, Switzerland. Dipen.Shah@hcuge.ch
Circulation
|June 19, 2002
Resumen
El campo lejano del apéndice auricular izquierdo (LAA) impacta la actividad de la vena pulmonar izquierda (PV) electrogramas. El ritmo ayuda a diferenciar las señales LAA y auricular izquierda (LA), ayudando a las estrategias de ablación para los potenciales persistentes.
Área de la Ciencia:
- Electrofisiología y electrofisiología.
- La anatomía cardíaca anatomía cardíaca.
- Cardiología Intervencionista Cardiología intervencionista.
Sus antecedentes:
- Los potenciales de la vena pulmonar (VP) a menudo persisten después de la ablación.
- La actividad del apéndice auricular izquierdo (LAA) puede contaminar los electrogramas PV.
Objetivo del estudio:
- Para diferenciar el origen de los potenciales no eliminados en los PV izquierdos.
- Para identificar el papel de LAA y la actividad auricular izquierda (LA) en los electrogramas fotovoltaicos.
Principales métodos:
- Análisis de electrogramas fotovoltaicos durante el ritmo sinusal, el ritmo sinusal coronario y el ritmo LAA.
- PV y LAA angiografía para evaluar la proximidad anatómica.
Principales resultados:
- Un potencial de baja amplitud en el PV superior izquierdo se correlacionó con la activación y proximidad posterior de LAA.
- Un potencial menos distinto en el PV inferior izquierdo se correlacionó con una activación de LA inferior, a pesar de la mayor distancia desde el LAA.
Conclusiones:
- La actividad de los LAA de campo lejano contribuye a los electrogramas fotovoltaicos superiores izquierdos.
- Los potenciales LA inferiores se identifican en el PV inferior izquierdo.
- LAA y el ritmo sinusal coronario pueden ayudar a distinguir estos potenciales extravenosos.
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