Prediction of mortality using dobutamine echocardiography

Thomas H. Marwick, Colin Case, Stephen Sawada, Curtis Rimmerman, Patricia Brenneman, Roxanne Kovacs, Leanne Short, Michael Lauer

Research output: Contribution to journalArticle

139 Citations (Scopus)

Abstract

OBJECTIVES: We sought to find out whether dobutamine echocardiography (DbE) could provide independent prediction of total and cardiac mortality, incremental to clinical and angiographic variables. BACKGROUND: Existing outcome studies with DbE have examined composite end points, rather than death, over a relatively short follow-up. METHODS: Clinical and stress data were collected in 3,156 patients (age 63 ± 12 years, 1,801 men) undergoing DbE. Significant stenoses (>50% diameter) were identified in 70% of 1,073 patients undergoing coronary angiography. Total and cardiac mortality were identified over nine years of follow-up (mean 3.8 ± 1.9). Cox models were used to analyze the effect of ischemia and other variables, independent of other determinants of mortality. RESULTS: The dobutamine echocardiogram was abnormal in 1,575 patients (50%). Death occurred in 716 patients (23%), 259 of whom (8%) were thought to have died from cardiac causes. Patients with normal DbE had a total mortality of 8% per year and a cardiac mortality of 1% per year over the first four years of follow-up. Ischemia and the extent of abnormal wall motion were independent predictors of cardiac death, together with age and heart failure. In sequential Cox models, the predictive power of clinical data alone (model chi-square 115) was strengthened by adding the resting left ventricular function (model chi-square 138) and the results of DbE (model chi-square 181). In the subgroup undergoing coronary angiography, the power of the model was increased to a minor degree by the addition of coronary anatomy data. CONCLUSIONS: Dobutamine echocardiography is an independent predictor of death, incremental to other data. While a normal dobutamine echocardiogram predicts low risk of cardiac death (on the order of 1% per year), this risk increases with the extent of abnormal wall motion at rest and stress.

Original languageEnglish
Pages (from-to)754-760
Number of pages7
JournalJournal of the American College of Cardiology
Volume37
Issue number3
DOIs
StatePublished - Mar 1 2001

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Dobutamine
Echocardiography
Mortality
Coronary Angiography
Proportional Hazards Models
Ischemia
Left Ventricular Function
Anatomy
Pathologic Constriction
Heart Failure
Outcome Assessment (Health Care)

ASJC Scopus subject areas

  • Nursing(all)

Cite this

Marwick, T. H., Case, C., Sawada, S., Rimmerman, C., Brenneman, P., Kovacs, R., ... Lauer, M. (2001). Prediction of mortality using dobutamine echocardiography. Journal of the American College of Cardiology, 37(3), 754-760. https://doi.org/10.1016/S0735-1097(00)01191-8

Prediction of mortality using dobutamine echocardiography. / Marwick, Thomas H.; Case, Colin; Sawada, Stephen; Rimmerman, Curtis; Brenneman, Patricia; Kovacs, Roxanne; Short, Leanne; Lauer, Michael.

In: Journal of the American College of Cardiology, Vol. 37, No. 3, 01.03.2001, p. 754-760.

Research output: Contribution to journalArticle

Marwick, TH, Case, C, Sawada, S, Rimmerman, C, Brenneman, P, Kovacs, R, Short, L & Lauer, M 2001, 'Prediction of mortality using dobutamine echocardiography', Journal of the American College of Cardiology, vol. 37, no. 3, pp. 754-760. https://doi.org/10.1016/S0735-1097(00)01191-8
Marwick, Thomas H. ; Case, Colin ; Sawada, Stephen ; Rimmerman, Curtis ; Brenneman, Patricia ; Kovacs, Roxanne ; Short, Leanne ; Lauer, Michael. / Prediction of mortality using dobutamine echocardiography. In: Journal of the American College of Cardiology. 2001 ; Vol. 37, No. 3. pp. 754-760.
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AU - Marwick, Thomas H.

AU - Case, Colin

AU - Sawada, Stephen

AU - Rimmerman, Curtis

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AU - Kovacs, Roxanne

AU - Short, Leanne

AU - Lauer, Michael

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N2 - OBJECTIVES: We sought to find out whether dobutamine echocardiography (DbE) could provide independent prediction of total and cardiac mortality, incremental to clinical and angiographic variables. BACKGROUND: Existing outcome studies with DbE have examined composite end points, rather than death, over a relatively short follow-up. METHODS: Clinical and stress data were collected in 3,156 patients (age 63 ± 12 years, 1,801 men) undergoing DbE. Significant stenoses (>50% diameter) were identified in 70% of 1,073 patients undergoing coronary angiography. Total and cardiac mortality were identified over nine years of follow-up (mean 3.8 ± 1.9). Cox models were used to analyze the effect of ischemia and other variables, independent of other determinants of mortality. RESULTS: The dobutamine echocardiogram was abnormal in 1,575 patients (50%). Death occurred in 716 patients (23%), 259 of whom (8%) were thought to have died from cardiac causes. Patients with normal DbE had a total mortality of 8% per year and a cardiac mortality of 1% per year over the first four years of follow-up. Ischemia and the extent of abnormal wall motion were independent predictors of cardiac death, together with age and heart failure. In sequential Cox models, the predictive power of clinical data alone (model chi-square 115) was strengthened by adding the resting left ventricular function (model chi-square 138) and the results of DbE (model chi-square 181). In the subgroup undergoing coronary angiography, the power of the model was increased to a minor degree by the addition of coronary anatomy data. CONCLUSIONS: Dobutamine echocardiography is an independent predictor of death, incremental to other data. While a normal dobutamine echocardiogram predicts low risk of cardiac death (on the order of 1% per year), this risk increases with the extent of abnormal wall motion at rest and stress.

AB - OBJECTIVES: We sought to find out whether dobutamine echocardiography (DbE) could provide independent prediction of total and cardiac mortality, incremental to clinical and angiographic variables. BACKGROUND: Existing outcome studies with DbE have examined composite end points, rather than death, over a relatively short follow-up. METHODS: Clinical and stress data were collected in 3,156 patients (age 63 ± 12 years, 1,801 men) undergoing DbE. Significant stenoses (>50% diameter) were identified in 70% of 1,073 patients undergoing coronary angiography. Total and cardiac mortality were identified over nine years of follow-up (mean 3.8 ± 1.9). Cox models were used to analyze the effect of ischemia and other variables, independent of other determinants of mortality. RESULTS: The dobutamine echocardiogram was abnormal in 1,575 patients (50%). Death occurred in 716 patients (23%), 259 of whom (8%) were thought to have died from cardiac causes. Patients with normal DbE had a total mortality of 8% per year and a cardiac mortality of 1% per year over the first four years of follow-up. Ischemia and the extent of abnormal wall motion were independent predictors of cardiac death, together with age and heart failure. In sequential Cox models, the predictive power of clinical data alone (model chi-square 115) was strengthened by adding the resting left ventricular function (model chi-square 138) and the results of DbE (model chi-square 181). In the subgroup undergoing coronary angiography, the power of the model was increased to a minor degree by the addition of coronary anatomy data. CONCLUSIONS: Dobutamine echocardiography is an independent predictor of death, incremental to other data. While a normal dobutamine echocardiogram predicts low risk of cardiac death (on the order of 1% per year), this risk increases with the extent of abnormal wall motion at rest and stress.

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