Document Detail

Deduction of triphasic phase response curves from ventricular parasystole.
MedLine Citation:
PMID:  2476748     Owner:  NLM     Status:  MEDLINE    
Modulation of ventricular parasystole by sinus beats has been shown to result in a biphasic phase response curve. Some reports also indicate that the modulation effect could be described by a triphasic response with an early phase of acceleration, which would correspond to the supernormal phase of excitability. Two cases of such triphasic phase response curves are reported. The coexistence of ventricular couplets and parasystole is also discussed. The second beat of the couplet has often been explained by reentry or reflection, but could also be interpreted as due to supernormal modulation, resulting in an accelerated second ectopic response.
H Ahlfeldt; G Nilsson; S Bandh; T Jonason; T Ahren; I Ringqvist
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  12     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1989 Jul 
Date Detail:
Created Date:  1989-10-20     Completed Date:  1989-10-20     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:  1104-14     Citation Subset:  IM    
Department of Medical Informatics, Linköping University, Sweden.
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MeSH Terms
Cardiac Complexes, Premature / physiopathology*
Computer Simulation

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

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