Unmasking of infra‐Hisian conduction abnormality by intravenous isoproterenol during electrophysiology study for syncope

Recurrent unexplained syncope in the background of bundle branch block (BBB) often requires a pacemaker. But the decision‐making for pacemaker is difficult in case of single episode of syncope with intermittent bundle branch block. We encountered one such case with intermittent LBBB, where the resul...

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Detalles Bibliográficos
Autores principales: Bera, Debabrata, Majumdar, Debdatta, Mukherjee, Sanjeev S., Majumder, Suchit, Kathuria, Sanjeev
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8851584/
https://www.ncbi.nlm.nih.gov/pubmed/35222766
http://dx.doi.org/10.1002/joa3.12663
Descripción
Sumario:Recurrent unexplained syncope in the background of bundle branch block (BBB) often requires a pacemaker. But the decision‐making for pacemaker is difficult in case of single episode of syncope with intermittent bundle branch block. We encountered one such case with intermittent LBBB, where the results of invasive EP study were even normal, until intravenous isoproterenol unmasked the infra‐Hisian disease during decremental atrial pacing.[Image: see text]

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