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(Circulation. 1973;48:597.)
© 1973 American Heart Association, Inc.

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The Correlation of Coronary Angiography and the Electrocardiographic Response to Maximal Treadmill Testing in 76 Asymptomatic Men

VICTOR F. FROELICHER JR. USAF, MC; FRANK G. YANOWITZ USAF, MC; A. J. THOMPSON USAF, MC; MALCOLM C. LANCASTER USAF, MC

This report presents the results of coronary angiography in 76 asymptomatic aircrewmen with exercise testing responses suggestive of coronary artery disease. There were two subgroups: 18 men with normal resting electrocardiograms; and 58 men with a history of repolarization changes on their resting electrocardiogram after at least one normal ECG. Of the 76 men, 53% had angiographically demonstrated coronary artery disease, and many of them had high risk lesions. Forty-seven percent had no angiographic evidence of lesions and were recommended for return to flying status. Those individuals with normal angiograms will be closely followed at the USAF School of Aerospace Medicine in an effort to determine their natural history and prognosis. The findings in this study, the lack of significant complications resulting from coronary angiography, the concern for public safety, and the economics of maintaining a flying force all support the continued use of elective coronary angiography in selected asymptomatic aircrewmen.

Key Words: Coronary angiography • Repolarization abnormalities • Asymptomatic population • Silent coronary heart disease • Maximal exercise testing • Double Master's tests

Submitted on February 14, 1973
Accepted on May 9, 1973

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