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Patient cohort demographics
| Patient characteristics | n = 348 |
|---|---|
| Mean age, year | 45.7 ± 13.6 |
| Women, n (%) | 109 (31.3) |
| Ischaemic heart disease, n (%) | 67 (19.3) |
| Previous valve surgery, n (%) | 2 (0.57) |
| History of AF, n (%) | 12 (3.4) |
| Normal EF >55%, n (%) | 219 (62.9) |
| Moderate EF 36–55%, n (%) | 46 (13.2) |
| Poor EF <35%, n (%) | 83 (23.9) |
| NYHA class II/III, n (%) | 148 (42.5) |
| Mean QRS duration, ms | 96 ± 15.9 |
| Primary prevention, n (%) | 250 (71.8) |
