Extent of myocardial ischemia during coronary occlusion in single vessel disease. A comparison between patients with exercise-induced angina and patients with recurrent angina at rest

Patients with exercise angina > 2 months (n:13) showed significantly lower ΣST elevation during 120 s balloon coronary occlusion than those with = < 2 months (n:7), or those with angina at rest < = 2 days (n:8) but similar to patients with angina at rest > 2 days (n:7). These results underscore the importance of the kind and duration of angina in limiting the extent of ischemia during coronary occlusion.