Clinical characteristics of the patients
| Monophasic | Biphasic | p Value | |
|---|---|---|---|
| Values are mean (SD) unless stated. | |||
| AF, atrial fibrillation; LA, left atrial. | |||
| Number | 109 | 118 | |
| Female (%) | 24.8 | 25.4 | NS |
| Age (years) | 59.9 (14.0) | 59.6(12.4) | NS |
| Height (cm) | 176.4 (10.0) | 177.9 (10.7) | NS |
| Weight (kg) | 82.5 (19.8) | 81.9 (20.8) | NS |
| Body mass index (kg/m2) | 26.5 (5.2) | 26.5 (5.7) | NS |
| LA diameter (mm) | 46.3 (8.4) | 44.4 (8.9) | NS |
| Mean impedance (ohm) | 68.5 (18.5) | 80.1 (19.7) | NS |
| Impedance measured (n (%)) | 45 (41) | 70 (59) | NS |
| Duration AF (days) (median (range)) | 41.0 (1–450) | 20.5 (1–390) | NS |
| Duration AF unknown (n) | 70 | 72 | NS |