Document Detail


Significance of timing programmed electrical stimulation after acute myocardial infarction.
MedLine Citation:
PMID:  3782634     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To assess the influence of time on the inducibility by programmed electrical stimulation of ventricular arrhythmias after acute myocardial infarction, 18 patients were studied on day 5 and day 24 after infarction with a stimulation protocol employing a maximum of three right ventricular extrastimuli during sinus rhythm and at three paced cycle lengths. All patients were without documented sustained ventricular arrhythmia (sustained ventricular tachycardia or ventricular fibrillation) before the investigation. Sustained ventricular arrhythmia was induced in two patients on day 5, but in nine on day 24 after infarction. This difference in incidence was statistically significant (p less than 0.05), as was the change in the distribution ratio of induced sustained ventricular arrhythmia from day 5 to day 24 (p less than 0.05). The types of arrhythmia induced on day 24 were sustained ventricular tachycardia with a mean cycle length of 207 ms in six cases (five monomorphic, one polymorphic), and ventricular fibrillation in three cases. These nine patients did not differ from the remaining nine patients in maximal serum creatine kinase, infarct site, number of stenosed coronary arteries, global left ventricular ejection fraction (47 +/- 7% versus 46 +/- 10%) and results of 24 hour ambulatory electrocardiographic (Holter) monitoring, but they had a significantly shorter right ventricular effective refractory period (223 +/- 10 ms versus 259 +/- 28 ms; p less than 0.05). During the follow-up period of 24 +/-5 months no patient died, had syncopal attacks or developed spontaneous episodes of sustained ventricular arrhythmia.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
K H Kuck; A Costard; M Schlüter; K P Kunze
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  8     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  1986 Dec 
Date Detail:
Created Date:  1987-01-05     Completed Date:  1987-01-05     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1279-88     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Arrhythmias, Cardiac / etiology
Cardiac Pacing, Artificial*
Electrocardiography
Exercise Test
Humans
Myocardial Infarction / complications,  physiopathology*
Refractory Period, Electrophysiological
Risk

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


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