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Patient characteristics.
| Diabetes | 2(17%) |
| Sleep apnoea | 0(0%) |
| Hypertension | 5(42%) |
| Left atrial diameter | 4.2±0.4 cm |
| Presence of left ventricular hypertrophy | 2(17%) |
| Presence of diastolic dysfunction | 2(17%) |
| Beta-blocker | 7(60%) |
| Non-dihydropyridine calcium channel blocker | 1(8%) |
| Amiodarone | 0(0%) |
| Digoxin | 1(8%) |
| Flecainide | 1(8%) |
