Table 2.
Baseline Electrocardiographic Characteristics of Patients With and Without Perioperative Cardiovascular Events
| All Patients, n = 660 | Without PCE, n = 580 | With PCE, n = 80 | P Value | |
|---|---|---|---|---|
| Electrocardiography | <0.001 | |||
| Normal | 266 (40.3) | 249 (42.8) | 17 (21.2) | |
| Abnormal | 394 (59.7) | 331 (57.2) | 63 (78.8) | 0.019 |
| ST‐T changes | 79 (12) | 63 (10.9) | 16 (20) | 0.124 |
| Left BBB | 28 (4.2) | 22 (3.8) | 6 (7.5) | 0.120 |
| Right BBB | 43 (6.5) | 41 (7.1) | 2 (2.5) | <0.001 |
| Pace rhythm | 6 (0.9) | 1 (0.2) | 5 (6.3) | 0.52 |
| Premature ventricular contraction | 39 (5.9) | 33 (5.7) | 6 (7.5) | 0.51 |
| Sinus bradycardia | 15 (2.3) | 14 (2.4) | 1 (1.3) | 0.55 |
| Sinus tachycardia | 45 (6.8) | 40 (8.3) | 5 (6.3) | 0.52 |
| LVH | 68 (10.3) | 58 (12.1) | 10 (12.5) | 0.053 |
| Q wave | 80 (12.1) | 65 (11.2) | 15 (18.8) | 0.019 |
| AF | 79 (12) | 63 (10.9) | 16 (20) | <0.001 |
| QTc interval (ms) | 416.1 ± 20.5 | 413.3 ± 16.7 | 436.6 ± 31.4 |
Abbreviations: AF, atrial fibrillation; BBB, bundle branch block; LVH, left ventricular hypertrophy; PCE, perioperative cardiovascular event; QTc, corrected QT interval.
Values are given as mean ± standard deviation or n (%).