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Circulation, Vol 64, 684-688, Copyright © 1981 by American Heart Association

ARTICLES

The exercise test in variant angina: results in 114 patients

S de Servi, C Falcone, A Gavazzi, A Mussini, E Bramucci, MT Curti, C Vecchio, G Specchia and P Bobba

One hundred fourteen patients with variant angina performed bicycle exercise stress tests, and were divided into three groups. Group 1 included 37 patients with a normal exercise test. Coronary arteriography revealed absence of significant coronary stenoses in 18 patients, one-vessel disease in 17 and involvement of two or more vessels in two. Group 2 consisted of 40 patients who had ST-segment elevation during or just after exercise. Coronary arteriography in these cases revealed absence of significant coronary stenoses in nine patients, one-vessel disease in 18 and disease of two or more vessels in 13. Group 3 included 37 patients who had ST-segment depression during exercise. Absence of coronary artery disease was found in only two patients, one-vessel disease was found in 19 and disease of two or more vessels was found in 16. Sixty-one patients repeated the exercise test after a mean of 18 months after hospital discharge. Exercise- induced ST-segment elevation was no longer present in surgically or medically treated patients; ST-segment depression was still evident in all the medically treated patients, but was absent in eight of 13 patients who underwent aortocoronary bypass surgery. Exercise testing can be useful in the follow-up of patients with variant angina and in selecting patients most likely to be helped by bypass surgery.

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