Research Article
Comparison between First- and Second-Generation Cryoballoon for Paroxysmal Atrial Fibrillation Ablation
Table 1
Baseline patient characteristics.
| | | CB, 1st
() | CB, 2nd
() | |
| | Male sex, (%) | 41 (68.3) | 50 (83.3) | 0.14 | | Mean age, years (mean SD) | 59.1 ± 12.2 | 57.2 ± 10.9 | 0.37 | | Body mass index, Kg/m2 (mean SD) | 26 ± 2 | 26 ± 3 | 0.59 | | Paroxysmal atrial fibrillation, (%) | 60 (100) | 60 (100) | 1 | | Left atrial diameter, mm (mean SD) | 22.9 ± 5.1 | 22.5 ± 4.7 | 0.60 | | Left ventricular ejection fraction, (mean SD) | 62.5 ± 6.1 | 60.9 ± 7.4 | 0.72 | | Hypertension, (%) | 25 (41.6) | 23 (38.3) | 0.63 | | Hypercholesterolemia, (%) | 12 (20) | 14 (23.3) | 0.61 | | Diabetes mellitus, (%) | 4 (6.6) | 5 (8.3) | 0.73 | | Hypertriglyceridemia, (%) | 5 (8.3) | 6 (10) | 0.71 | | Active smoking, (%) | 8 (13.3) | 9 (15) | 0.69 | | Coronary artery disease, (%) | 4 (6.6) | 5 (8.3) | 0.73 | | Dilated cardiomyopathy, (%) | 0 | 0 | — | | Valve disease, (%) | 4 (6.6) | 3 (5) | 0.40 | | Previous cardiac surgery, (%) | 3 (5) | 2 (3.3) | 0.46 | | Previous ischemic stroke, (%) | — | 1 (1.6) | 0.53 | | Chronic renal failure, (%) | 4 (6.6) | 3 (5) | 0.40 | | Previous ablation procedures for AF, (%) | 0 | 0 | — |
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