Prognostic Evaluation by Clinical Exercise Test Scores in Patients Treated With Primary Percutaneous Coronary Intervention or Fibrinolysis for Acute Myocardial Infarction (a Danish Trial in Acute Myocardial Infarction-2 Sub-Study)

The prognostic accuracy of exercise testing after myocardial infarction is low, and different models have been proposed to enhance the predictive value for subsequent mortality. This study tested a simple score against 3 established scores. Patients with ST-elevation myocardial infarctions were randomized in the Danish Trial in Acute Myocardial Infarction-2 (DANAMI-2) to either primary percutaneous coronary intervention or fibrinolysis with predischarge exercise testing. Clinical and exercise test data were collected prospectively and were available for 1,115 patients. A simple score was derived, awarding 1 point for history or new signs of heart failure, 1 point for a left ventricular ejection fraction 65 years in men and age >70 years in women, and 1 point for exercise capacity