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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1994-5-19
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pubmed:abstractText |
The value of time-domain and spectral turbulence analyses of the signal-averaged electrocardiogram (SAECG) for predicting induction of sustained monomorphic ventricular tachycardia (VT) was prospectively investigated in 70 patients with idiopathic dilated cardiomyopathy. Sustained VT was induced in 9 patients (13%). The prevalence of abnormal time-domain and spectral analyses was 16 and 37%, respectively. The total predictive accuracy of time-domain and spectral analyses for VT induction was 86 and 67%, respectively (p < 0.01). The predictive accuracy of time-domain and spectral analysis was similar in patients without an intraventricular conduction defect (94 and 84%, respectively). However, the predictive accuracy of time-domain was higher than that of spectral analysis in patients with an intraventricular conduction defect (65 vs 25%; p < 0.05). The poor concordance between spectral analysis and programmed stimulation results was mainly due to the high number of false-positive recordings in the presence of an intraventricular conduction defect (9 of 20 cases). With the use of stepwise discriminant function analysis, an abnormal time-domain SAECG was the only variable predicting the induction of sustained VT (p < 0.0003). In dilated cardiomyopathy, an abnormal time-domain SAECG and induced sustained VT are rare, both time-domain signal-averaged electrocardiography and spectral analysis have a high predictive accuracy for VT induction in patients without an intraventricular conduction defect, and spectral analysis does not improve VT prediction in those with a conduction defect.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0002-9149
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
73
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
770-3
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8160614-Analysis of Variance,
pubmed-meshheading:8160614-Cardiac Pacing, Artificial,
pubmed-meshheading:8160614-Cardiomyopathy, Dilated,
pubmed-meshheading:8160614-Electrocardiography,
pubmed-meshheading:8160614-Female,
pubmed-meshheading:8160614-Humans,
pubmed-meshheading:8160614-Incidence,
pubmed-meshheading:8160614-Male,
pubmed-meshheading:8160614-Middle Aged,
pubmed-meshheading:8160614-Prospective Studies,
pubmed-meshheading:8160614-Signal Processing, Computer-Assisted,
pubmed-meshheading:8160614-Tachycardia, Ventricular
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pubmed:year |
1994
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pubmed:articleTitle |
Incidence and prediction of induced ventricular tachyarrhythmias in idiopathic dilated cardiomyopathy.
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pubmed:affiliation |
Department of Medicine, State University of New York, Health Science Center, Brooklyn 11203.
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pubmed:publicationType |
Journal Article
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