1. Limited Exercise Testing Soon After Myocardial Infarction
- Author
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Santosh Kansal, Jon D. Turner, Kerry M. Schwartz, Charles E. Rackley, William J. Rogers, John A. Mantle, David Roitman, Richard O. Russell, Silvio E. Papapietro, and L. Thomas Sheffield
- Subjects
Adult ,Male ,medicine.medical_specialty ,Heart Ventricles ,Myocardial Infarction ,Coronary Angiography ,Angina ,Coronary artery disease ,Electrocardiography ,Internal medicine ,Internal Medicine ,medicine ,Humans ,ST segment ,Prospective Studies ,cardiovascular diseases ,Myocardial infarction ,Treadmill ,Aged ,ST depression ,Ejection fraction ,business.industry ,Angiocardiography ,Electrocardiography in myocardial infarction ,General Medicine ,Middle Aged ,medicine.disease ,Exercise Test ,Cardiology ,Female ,medicine.symptom ,business - Abstract
Forty-eight patients within 3 weeks of myocardial infarction underwent both limited treadmill graded exercise testing and coronary and left ventricular angiography. Nineteen (90%) of 21 patients with positive exercise tests (greater than or equal to 1 mm ST depression, angina, or both) had multivessel coronary artery disease. In the 27 patients with negative exercise test results, 15 (55%) had multivessel disease, 11 (41%) had single-vessel disease, and one (4%) had no coronary stenosis. Exercise-induced ST segment elevation occurred in 24 patients and predicted a significantly lower ejection fraction and higher angiographic abnormally contracting segment size. Patients experiencing angina during or after exercise had a significantly shorter 2-year survival (54% +/- 21%) than patients without exercise-induced angina (97% +/- 3%) (p less than 0.03). Thus limited exercise testing postinfarction is useful in evaluating the presence of multivessel coronary artery disease and left ventricular dysfunction and predicting long-term survival.
- Published
- 1981