Electrocardiographic predictors of arrhythmic death and total mortality in the multicenter unsustained tachycardia trial

Peter J. Zimetbaum, Alfred E. Buxton, William Batsford, John Devens Fisher, Gail E. Hafley, Kerry L. Lee, Michael F. O'Toole, Richard L. Page, Matthew Reynolds, Mark E. Josephson

Research output: Contribution to journalArticle

140 Citations (Scopus)

Abstract

Background-Stratifiers of sudden and total mortality risk are needed to optimally target preventive therapies in patients with coronary artery disease and impaired ventricular function. We assessed the prognostic significance of ECG markers of conduction abnormalities and left ventricular hypertrophy in the Multicenter Unsustained Tachycardia Trial (MUSTT). Methods and Results-We analyzed the ECGs of 1638 patients from MUSTT who did not receive antiarrhythmic therapy (antiarrhythmic medication or implantable cardioverter-defibrillator). After adjustment for other significant factors, left bundle-branch block and intraventricular conduction delay were associated with a 50% increase in the risk of both arrhythmic and total mortality. Right bundle-branch block was not associated with arrhythmic or total mortality. Left ventricular hypertrophy was the only ECG predictor of arrhythmic (hazard ratio, 1.35; 95% CI, 1.08 to 1.69) but not total mortality. Conclusions-In patients with coronary artery disease, depressed left ventricular function, and nonsustained ventricular tachycardia, QRS prolongation resulting from left bundle-branch block or intraventricular conduction delay but not right bundle-branch block provided prognostic information about the risk of arrhythmic and total mortality independently of electrophysiological evaluation and ejection fraction. Left ventricular hypertrophy was associated with increased arrhythmic but not total mortality.

Original languageEnglish (US)
Pages (from-to)766-769
Number of pages4
JournalCirculation
Volume110
Issue number7
DOIs
StatePublished - Aug 17 2004

Fingerprint

Tachycardia
Bundle-Branch Block
Mortality
Left Ventricular Hypertrophy
Electrocardiography
Coronary Artery Disease
Ventricular Function
Implantable Defibrillators
Ventricular Tachycardia
Left Ventricular Function
Therapeutics

Keywords

  • Bundle-branch block
  • Death, sudden
  • Hypertrophy
  • Trials

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Electrocardiographic predictors of arrhythmic death and total mortality in the multicenter unsustained tachycardia trial. / Zimetbaum, Peter J.; Buxton, Alfred E.; Batsford, William; Fisher, John Devens; Hafley, Gail E.; Lee, Kerry L.; O'Toole, Michael F.; Page, Richard L.; Reynolds, Matthew; Josephson, Mark E.

In: Circulation, Vol. 110, No. 7, 17.08.2004, p. 766-769.

Research output: Contribution to journalArticle

Zimetbaum, PJ, Buxton, AE, Batsford, W, Fisher, JD, Hafley, GE, Lee, KL, O'Toole, MF, Page, RL, Reynolds, M & Josephson, ME 2004, 'Electrocardiographic predictors of arrhythmic death and total mortality in the multicenter unsustained tachycardia trial', Circulation, vol. 110, no. 7, pp. 766-769. https://doi.org/10.1161/01.CIR.0000139311.32278.32
Zimetbaum, Peter J. ; Buxton, Alfred E. ; Batsford, William ; Fisher, John Devens ; Hafley, Gail E. ; Lee, Kerry L. ; O'Toole, Michael F. ; Page, Richard L. ; Reynolds, Matthew ; Josephson, Mark E. / Electrocardiographic predictors of arrhythmic death and total mortality in the multicenter unsustained tachycardia trial. In: Circulation. 2004 ; Vol. 110, No. 7. pp. 766-769.
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