patients with such a scintigram were more likely to have severe angina pectoris , compensated congestive heart failure , anterior location of acute myocardial infarction , q waves and s-t segment elevation in the electrocardiograms , cardiomegaly , left ventricular dyssynergy ( dyskinesia or global dyssynergy ) , and an ejection fraction of less than 50 percent .
C0013384
dyskinesia
C0004134
dyssynergy