AAI to DDD pacing mode inappropriate switches in a dual chamber pacemaker due to ventricular blanking period

A 90-year-old woman received a dual chamber pacemaker (PM) for a sick sinus syndrome. The PM was programmed with SafeR AAI-DD pacing mode at 60 bpm. During a standard follow up, some memorized electrograms (EGMs) were found in SafeR diagnostics, with atrial pacing (Ap) not followed by any ventricula...

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Detalles Bibliográficos
Autores principales: Lanzilotti, Maria Cristina, Milanese, Giovanni
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7854375/
https://www.ncbi.nlm.nih.gov/pubmed/33221528
http://dx.doi.org/10.1016/j.ipej.2020.11.016
Descripción
Sumario:A 90-year-old woman received a dual chamber pacemaker (PM) for a sick sinus syndrome. The PM was programmed with SafeR AAI-DD pacing mode at 60 bpm. During a standard follow up, some memorized electrograms (EGMs) were found in SafeR diagnostics, with atrial pacing (Ap) not followed by any ventricular sensing/pacing event, due to simultaneous junctional activity falling into ventricular blanking period during Ap and, for this reason, unsensed by the PM. Blanking periods can affect PM functioning if not revealed and adjusted.

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