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| Group | Total | Sinus tachycardia | Right axis deviation | Right ventricular enlargement | Right bundle branch block | ST-T changes | Ventricular ectopics |
|---|---|---|---|---|---|---|---|
| Study group | 60 | 24 (40%) | 8 (12.3%) | 5 (8.3%) | 1 (1.7%) | 4 (6.7%) | 2 (2.3%) |
| A | 30 | 17 (28.3%) | 3 (5%) | 0 | 0 | 0 | 1 (1.7%) |
| B | 16 | 5 (8.3%) | 2 (2.3%) | 2 (2.3%) | 0 | 1 (1.7%) | 0 |
| C | 14 | 2 (2.3%) | 3 (5%) | 3 (5%) | 1 (1.7%) | 3 (5%) | 1 (1.7%) |
| Control group | 15 | 4 (26.7%) | 0 | 0 | 0 | 0 | 0 |
