Study on the relationship between myocardial ischemia assessed by 24-hour ambulatory electrocardiogram and ventricular premature beat originating from different positions in older adults

The total incidence of myocardial ischemia of left ventricular premature beats was higher than that of right ventricular premature beats. The highest incidence of myocardial ischemia of ventricular premature beats was that from the left ventricular apex and anterior wall. The incidence of myocardial ischemia of ventricular premature beats was more than 50% in older adults.