Myocardial ischemia during physical exercise in patients with stable coronary artery disease: predictability and prevention

Safety of Sports Participation in Patients with Implantable Cardioverter Defibrillators: A Survey of Heart Rhythm Society Members

“…Many factors may decrease the potential risks of sports, such as habitual exercise, which reduces the risk of SCD during exercise by 7‐fold 2 . Also, compliance with target heart rate decreases lethal arrhythmias, 20 as well as ischemia, 21 during exercise in coronary disease patients. Teaching patients to monitor and recognize a target heart rate will also decrease shocks due to sinus tachycardia, as will implantation of dual‐chamber ICDs, with improved arrhythmia discrimination.…”

Circadian Variation of the Myocardial Ischemic Threshold in Patients with Ischemic Heart Disease

“…The mean HRs at the sympathetic tone threshold and at the AT in seven subjects were 121.6 ± 16/min and 117 ± 13.6/min, respectively. at risk for exercise-induced myocardial ischemia during daily activities (3,19). Hence, it is of importance to elucidate the relationship between circadian change at the ischemic threshold and autonomic tone in order to make cardiac rehabilitation or exercise training effective and prevent cardiac events.…”

Sudden Death Following Exercise Testing Related to Abnormalities of the Cardiac Conduction System and Coronary Artery Pathology

“…As reported in many studies, intensive physical activity may lead to myocardial ischemia or infarction, ventricular tachyarrhythmias, and sudden death. 3,5 The mechanism of sudden death reported in most individuals with coronary artery disease is a ventricular tachycardia, which progresses to ventricular fibrillation in about 80% of cases. 1,3 Regarding the relationship between coronary atherosclerosis and rhythm troubles during exercise testing, the opinions in literature are divergent.…”