Characteristics of Patients With and Without RR
| Patient characteristics | RR group (n = 18) | Non-RR group (n = 55) | P |
|---|---|---|---|
| Age* (y) | 59 ± 10 | 59 ± 9 | NS |
| Sex ratio (M/F) | 16/2 | 48/7 | NS |
| History of MI | 17 | 33 | 0.006 |
| Patency of infarct-related artery (n) | 6 | 16 | NS |
| Age-predicted maximal HR* (%) | 77 ± 11 | 81 ± 13 | NS |
| Maximal exercise workload* (W) | 118 ± 25 | 122 ± 36 | NS |
| LVEF* (%) | 33 ± 12 | 37 ± 13 | NS |
| Ischemic segments* (n) | 1.7 ± 2 | 3.5 ± 2.8 | 0.012 |
| Diseased vessels | |||
| 1 | 3 | 12 | |
| 2 | 8 | 17 | |
| 3 | 7 | 26 | NS |
| Revascularization procedure | |||
| PTCA | 5 | 17 | |
| CABG | 13 | 38 | NS |
↵* Data are expressed as mean ± SD.
NS = not significant; MI = myocardial infarction; HR = heart rate; PTCA = percutaneous transluminal coronary angioplasty; CABG = coronary artery bypass grafting.