Document Detail

Exercise testing in patients with life-threatening ventricular tachyarrhythmias: results and correlation with clinical and arrhythmia factors.
MedLine Citation:
PMID:  3177199     Owner:  NLM     Status:  MEDLINE    
The results of exercise treadmill stress testing were analyzed in 64 consecutive patients presenting with either ventricular fibrillation (42%) or hemodynamically significant ventricular tachycardia (58%). Underlying diseases included coronary artery disease (55%), dilated cardiomyopathy (16%), and miscellaneous disorders (29%). Patients were additionally studied with ambulatory electrocardiographic monitoring and programmed stimulation. During exercise testing, 22 patients (34%) had nonsustained and five (8%) had sustained ventricular tachycardia. No patient experienced ventricular fibrillation or a major complication during exercise testing. Patients with a history of ventricular fibrillation were significantly less likely to have exercise-induced ventricular tachycardia than those with a history of ventricular tachycardia. Other clinical factors were not associated with the results of exercise testing. The results of programmed stimulation did not correlate with the results of exercise testing. Ventricular tachycardia was commonly documented during ambulatory monitoring (72%), but this was not predictive of ventricular tachycardia during exercise. However, patients who did not have ventricular tachycardia during ambulatory monitoring were predictably unlikely to have it during exercise testing (p less than 0.002). Thus exercise testing is safe and can provoke ventricular tachycardia in a significant proportion of patients with life-threatening arrhythmias.
B J Allen; T P Casey; M A Brodsky; C R Luckett; W L Henry
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  116     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1988 Oct 
Date Detail:
Created Date:  1988-11-07     Completed Date:  1988-11-07     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  997-1002     Citation Subset:  AIM; IM    
University of California, Irvine Medical Center, Orange.
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MeSH Terms
Cardiac Pacing, Artificial
Exercise Test*
Middle Aged
Monitoring, Physiologic
Tachycardia / diagnosis*
Ventricular Fibrillation / diagnosis*

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