Table 1. Baseline Demographic and Clinical Characteristics.
| Valuesa | |
|---|---|
| Age (yrs) | 49 ± 17 |
| Male | 63 (75) |
| Body mass index,kg/m2 | 26 ± 4.5 |
| Symptom duration (months) | 20 ± 4 |
| Clinical presentation | |
| Palpitation | 74 (88) |
| Dyspnea | 4 (5) |
| Syncope | 3 (4) |
| Dizziness | 2 (2) |
| Asymptomatic | 1 (1) |
| Preablationcerebrovascular accident | 1 (1) |
| Chronic obstructive pulmonary disease | 3 (4) |
| Systolic hypertension | 15 (18) |
| Diabetes mellitus | 7 (8) |
| Cigarette smoking | 14 (17) |
| Preablationatrial fibrillation | 11 (13) |
| Underlying heart disease: | |
| Congenital heart disease | 18 (21) |
| Coronary artery disease | 15 (18) |
| Valvularheart disease | 8 (9.5) |
| Dilated cardiomyopathy | 6 (7) |
| Hypertrophic cardiomyopathy | 1 (1) |
| Pre-ablation flutter type | |
| Paroxysmal | 46 (55) |
| Persistent | 38 (45) |
a All values are in mean ± SD