Document Detail

Right atrial monophasic action potential in patients with paroxysmal supraventricular tachyarrhythmias.
MedLine Citation:
PMID:  835359     Owner:  NLM     Status:  MEDLINE    
Thirteen patients with paroxysmal atrial tachyaarhthmias (six atrial supraventricular tachycardia, six atrial fibrillation, and one atrial flutter) have been investigated by recording of monophasic action potentials (MAP) during a period free from arrhythmias. None of the patients differed from healthy individuals with respect to any of the MAP variables. Occasional recordings showed values not found in healthy individuals, such as prolonged duration of the MAP or slow phase 4 depolarization. The atrial effective refractory period (AERP) was determined in two patients. One AERP was short compared with values found in healthy individuals. Thus some MAP recordings gave a possible explanation for the mechanism behind the arrhythmias, while other recordings showed no differences from results in healthy individuals.
L Brorson; S B Olsson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta medica Scandinavica     Volume:  201     ISSN:  0001-6101     ISO Abbreviation:  Acta Med Scand     Publication Date:  1977 Jan 
Date Detail:
Created Date:  1977-03-31     Completed Date:  1977-03-31     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370330     Medline TA:  Acta Med Scand     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  105-10     Citation Subset:  AIM; IM    
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MeSH Terms
Action Potentials*
Atrial Fibrillation / physiopathology*
Atrial Flutter / physiopathology*
Electric Stimulation
Heart Atria
Heart Conduction System / physiopathology*
Middle Aged
Pacemaker, Artificial
Tachycardia, Paroxysmal / physiopathology*
Time Factors

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

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