Document Detail

Spontaneous shifts in the sinus node pacemaker complex.
MedLine Citation:
PMID:  7616144     Owner:  NLM     Status:  MEDLINE    
Shifts in sinus node pacemaker complex may occur spontaneously, but occurrence of clinically relevant shifts is very rare. In this report, three patients (2 are siblings) with a history of palpitations and nearly permanent shifts in sinus node pacemaker complex are presented. Often, but not always, the pacemaker shifts followed spontaneous sinoatrial exit blocks. The shifts were probably related to varying vagal tone, since they were eliminated by atropine and exercise. The experience with these patients suggests that sinus pacemaker shifts can be a cause of symptomatic nonrespiratory sinus arrhythmia. A 4-year follow-up period showed no changes in symptoms or in heart rhythm; therefore, a benign course of the disease can be expected.
P Rakovec; I Zupan; M Sinkovec
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  28     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1995 Apr 
Date Detail:
Created Date:  1995-08-24     Completed Date:  1995-08-24     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  131-4     Citation Subset:  IM    
Clinic of Cardiology, University Medical Center, Ljubljana, Slovenia.
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MeSH Terms
Arrhythmia, Sinus / physiopathology*,  therapy
Cardiac Pacing, Artificial*
Sinoatrial Node / physiopathology*

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