PMID: 495500Nov 1, 1979

Relation between the precordial projection of S-T segment changes after exercise and coronary angiographic findings

The American Journal of Cardiology
K FoxJ Shillingford

Abstract

The recent introduction of electrocardiographic mapping permits measurement of the precordial area and severity of exercise-induced S-T segment changes. This study was designed to compare this technique with a modified 12 lead electrocardiogram in defining the degree and site of coronary artery disease. One hundred patients, who later had diagnostic coronary arteriography, underwent an exercise test using both 16 point precordial mapping and a modified 12 lead electrocardiogram. The sensitivity of electrocardiographic mapping (96 percent) for the diagnosis of coronary artery disease was significantly greater than that of the modified 12 lead electrocardiogram (80 percent). However, the specificity of the two lead systems was similar. Typical precordial projections of S-T segment change were found when the left main stem or proximal left anterior descending coronary artery were narrowed or when there was isolated disease of the left anterior descending or right coronary artery. Widespread precordial changes were found in patients with three vessel disease. Although there was no significant difference in the sensitivity (66 percent) and specificity (100 percent) of electrocardiographic mapping and of the 12 lead system in identif...Continue Reading

References

Aug 21, 1975·The New England Journal of Medicine·J S BorerS E Epstein
Nov 1, 1977·Circulation·N J Fortuin, J L Weiss
Mar 1, 1979·The American Journal of Cardiology·K FoxJ Shillingford
Dec 1, 1978·British Heart Journal·K FoxJ Shillingford
Sep 1, 1976·Annals of Internal Medicine·N GoldschlagerK Cohn
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May 1, 1971·British Heart Journal·D S ReidJ Shillingford
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Citations

Apr 1, 1991·Computers and Biomedical Research, an International Journal·G KozmannM Scott
Apr 1, 1994·Journal of Electrocardiology·K BrockmeierG L Romani
Aug 1, 1983·Journal of the American College of Cardiology·J A AbildskovR L Lux
Feb 27, 1982·British Medical Journal·K Fox
Jul 2, 1983·British Medical Journal·A M SalmasiE M Besterman
Mar 14, 1998·Postgraduate Medical Journal·A ChauhanD L Stone
Feb 13, 2007·Biomedical Engineering Online·Bruce Hopenfeld
Apr 1, 1990·Circulation Research·D KilpatrickA J Bell
Nov 1, 1986·Diabetic Medicine : a Journal of the British Diabetic Association·L HumeJ D Ward

Related Concepts

Coronary Heart Disease
Electrocardiographic Recorders
Cardiopulmonary Exercise Test
Cardiac Conduction System
Coronary Angiography

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