Major Prognostic Factors Affecting Outcome from Noninvasive Testing
| Test | Prognostic factor for extent of… | |
|---|---|---|
| Left ventricular dysfunction | Ischemia | |
| 12-Lead electrocardiography | Q waves | |
| Conduction abnormalities | ||
| Atrial fibrillation | ||
| Routine treadmill testing | Exercise duration | ST-T wave changes |
| Peak heart rate | Exercise-induced chest pain | |
| Peak systolic blood pressure | Ventricular tachycardia/fibrillation | |
| Ambulatory Holter monitoring | Decreased heart rate variability | ST depression episodes |
| Ventricular tachycardia or fibrillation | Ventricular arrhythmias | |
| Chest radiography | Cardiomegaly | |
| Pulmonary edema | ||
| Kerley’s B lines | ||
| Pleural effusions | ||
| Myocardial perfusion imaging | Extent of perfusion defects (e.g., extent of infarction/fixed defects) | Reversible defects or extent of perfusion ischemia |
| Transient ischemic dilatation | ||
| Increased lung uptake | ||
| Ventricular function imaging | Depressed ejection fraction or flat ejection fraction response to exercise | Drop in ejection fraction with exercise |
| Mitral regurgitation End-systolic volume | New or worsening wall motion abnormality | |
| Coronary angiography | Extent of CAD (i.e., multivessel disease) Ejection fraction | Presence of CAD (i.e., significant flow-limiting stenosis) |
| End-systolic volume | ||