Table 2 Baseline characteristics
From: Comparison of pulmonary vein isolation between two commercially available cryoballoon systems
Baseline population (n = 452) | Cryoballoon system used | p value | ||
|---|---|---|---|---|
Arctic Front™ (n = 306) | PolarX™ (n = 146) | |||
Age (years), mean ± SD | 65.0 ± 12.7 | 64.5 ± 12.6 | 66.0 ± 13.0 | 0.215 |
Male gender, n (%) | 276 (61.1) | 182 (59.5) | 94 (64.4) | 0.317 |
Patients with paroxysmal atrial fibrillation, n (%) | 232 (51.4) | 171 (55.9) | 61 (42.1) | 0.006 |
Arterial hypertension, n (%) | 310 (68.6) | 210 (68.6) | 100 (63.5) | 0.614 |
Chronic heart failure history, n (%) | 82 (18.1) | 53 (17.3) | 29 (19.9) | 0.512 |
Coronary heart disease, n (%) | 107 (23.7) | 71 (23.2) | 36 (24.7) | 0.069 |
Diabetes, n (%) | 67 (14.8) | 41 (13.4) | 26 (17.8) | 0.178 |
History of stroke/TIA, n (%) | 43 (9.5) | 28 (9.2) | 15 (10.3) | 0.703 |
Glomerular filtration rate (mL/min), mean ± SD | 77.2 ± 64.5 | 76.6 ± 56.3 | 78.7 ± 79.3 | 0.746 |
BMI (kg/m2), mean ± SD | 27.8 ± 4.5 | 27.7 ± 4.5 | 27.9 ± 4.4 | 0.604 |
Group Ic and group III antiarrhythmic medication use on discharge, n (%) | 114 (25.9) | 77 (25.7) | 37 (26.4) | 0.865 |
Beta blocker use, n (%) | 337 (74.6) | 234 (76.5) | 103 (70.5) | 0.286 |
LA diameter, mm, mean ± SD | 38.5 ± 5.9 | 37.9 ± 5.7 | 39.7 ± 6.3 | 0.005 |