Document Detail

Pure atrial-based lower rate timing of dual chamber pacemakers: implications for upper rate limitation.
MedLine Citation:
PMID:  7770358     Owner:  NLM     Status:  MEDLINE    
The release of dual chamber pulse generators with atrial-based lower rate timing has added a new dimension to the complexity of pacemaker function and electrocardiography. This discussion focuses on the concept that in pulse generators with pure atrial-based lower rate timing, preservation of the atrial lower rate interval takes hierarchical precedence over all other timing intervals including the ventricular-based upper rate interval. Under certain circumstances whenever upper rate limitation requires extension of the programmed AV interval, a DDD pulse generator with pure atrial-based lower rate timing can violate its atrial-driven upper rate interval to provide constancy of the lower rate interval. Such behavior also has important implications for upper rate control in devices that function in the DDI (DDIR) or DDDR mode with pure atrial-based lower rate timing.
S S Barold; C S Fredman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  18     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-07-05     Completed Date:  1995-07-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  391-400     Citation Subset:  IM    
Department of Medicine, Genesee Hospital, Rochester, NY 14607, USA.
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MeSH Terms
Atrial Function
Cardiac Pacing, Artificial
Heart Rate
Pacemaker, Artificial*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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