Characteristics of patients with a positive cardiac history and/or abnormal baseline ECG as a function of left ventricular ejection fraction
| Variable | LVEF ≤40% (n=24) | LVEF >40% (n=64) | p Value |
|---|---|---|---|
| Values are n (%) unless stated. | |||
| BBB, bundle branch block; CAD, coronary artery disease; LVEF, left ventricular ejection fraction; MI, myocardial infarction; PVC, premature ventricular contractions. | |||
| Age (mean (SD)) | 75 (7) | 73 (11) | <0.01 |
| CAD | 18 (75) | 27 (42) | <0.01 |
| Previous MI | 13 (54) | 14 (22) | <0.01 |
| Physical examination in emergency department | |||
| Pulse >90 beats/min | 8 (33) | 16 (25) | NS |
| Third heart sound | 4 (17) | 0 | NS |
| Pulmonary rales | 10 (42) | 15 (23) | NS |
| 12 lead ECG | |||
| Old MI | 8 (33) | 8 (12) | 0.03 |
| Left or right BBB | 12 (50) | 14 (22) | 0.04 |
| Multiple PVCs | 7 (29) | 9 (14) | NS |