Table 3.
Summary of electrocardiogram (ECG) findings.
| N (%) | |
|---|---|
| Abnormal ECG | 100 (47) |
| Rhythm | |
| normal sinus | 134 (63) |
| sinus arrhythmia | 47 (22) |
| sinus tachycardia | 12 (6) |
| sinus bradycardia | 12 (6) |
| arrhythmias1 | 7 (3) |
| other | 1(<1) |
| PR interval changes | |
| normal | 195 (92) |
| shortened | 16 (8) |
| prolonged | 2 (1) |
| QRS axis | |
| normal | 201 (94) |
| right axis deviation | 11 (5) |
| left axis deviation | 1 (<1) |
| QRS morphology | |
| normal | 188 (88) |
| Incomplete right bundle branch block | 18 (8) |
| Interventricular conduction delay | 6 (3) |
| low voltage | 1 (<1) |
| QTc interval changes | |
| normal | 207 (97) |
| prolonged | 3 (1) |
| shortened | 3 (1) |
| ST segment changes | |
| non-specific | 24 (11) |
| early repolarization | 13 (6) |
| T wave changes | |
| non-specific | 20 (9) |
| inverted | 9 (4) |
1
Severe sinus arrhythmia with ectopic atrial escape=1, wondering atrial pacemaker=2, premature atrial contraction=1, sinus tachycardia with ectopic atrial rhythm=1, low right atrial rhythm=2.