DSE data for patients with and without angina during DSE
| Silent ischaemia (n = 643) | Symptomatic ischaemia (n = 288) | p Value | |
|---|---|---|---|
| Data are mean (SD) or number (%). | |||
| Peak heart rate (beats/min) | 127 (21) | 124 (20) | 0.03 |
| Peak systolic blood pressure (mm Hg) | 135 (31) | 134 (28) | 0.7 |
| Peak rate pressure product | 16 573 (4290) | 17 119 (4767) | 0.1 |
| Peak dobutamine dose (μg) | 37 (7) | 38 (5) | 0.09 |
| Atropine use | 230 (36%) | 96 (33%) | 0.5 |
| ST segment depression | 248 (38%) | 179 (62%) | <0.001 |
| Number of dysfunctional segments at rest | 9.6 (5.1) | 8.8 (5.0) | 0.1 |
| Number of ischaemic segments | 3.5 (2.2) | 3.8 (2.1) | 0.2 |
| Arrhythmias and hypotension during the test | 43 (7%) | 12 (4%) | 0.2 |
| Reasons for termination of the stress test | |||
| 85% of maximum heart rate | 579 (90%) | 250 (87%) | 0.2 |
| Maximum dose | 36 (5%) | 14 (5%) | 0.8 |
| Arrhythmias | 12 (2%) | 2 (1%) | 0.3 |
| Side effects | 11 (2%) | 1 (0.3%) | 0.2 |
| ST segment depression | 5 (1%) | 10 (3%) | <0.005 |
| Angina | 0 (0%) | 11 (4%) | <0.0001 |