Document Detail

Prospective study of late potentials to predict cardiac sudden death and ventricular tachycardias in patients with myocardial infarction surviving over 4 weeks.
MedLine Citation:
PMID:  2277409     Owner:  NLM     Status:  MEDLINE    
We studied, prospectively, the predictive value of late potentials to cardiac sudden death and sustained ventricular tachycardias in 385 patients with myocardial infarction surviving over 4 weeks. Signal averaged electrocardiogram was performed over a 4 week period from the onset of acute myocardial infarction in all patients. Late potentials were observed in 118 of 385 patients. During the mean follow up period of 24.3 months, 17 patients had cardiac sudden death and 15 patients had symptomatic sustained ventricular tachycardias. In 16 of 17 patients with cardiac sudden death and 14 of 15 patients with sustained ventricular tachycardias, late potentials were observed. Sensitivity, specificity, positive predictive value, negative predictive value, and predictive accuracy of late potentials to cardiac sudden death in these 385 patients were 94.1%, 72.3%, 13.6%, 99.6% and 73.2% respectively. Also, these predictive values of late potentials to sustained ventricular tachycardias in the group of patients were 93.3%, 71.9%, 11.9%, 99.6% and 72.7%, respectively. We concluded that the clinical usefulness of late potentials in patients with myocardial infarction surviving over 4 weeks in the negative predictive value to cardiac sudden death and sustained ventricular tachycardias is superior to that of positive predictive value. Sensitivity of late potentials to these events is also higher.
Y Ozawa; S Yakubo; M Hatano
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  54     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  1990 Oct 
Date Detail:
Created Date:  1991-03-07     Completed Date:  1991-03-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  1304-14     Citation Subset:  IM    
Second Department of Internal Medicine, School of Medicine, Nihon University, Tokyo, Japan.
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MeSH Terms
Aged, 80 and over
Death, Sudden / etiology*
Middle Aged
Myocardial Contraction
Myocardial Infarction / complications*,  mortality,  physiopathology
Predictive Value of Tests
Prospective Studies
Stroke Volume
Tachycardia / diagnosis*
Time Factors

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