Table 1.
Patient characteristics.
| Standard group (n = 25) | NC group (n = 75) | P-value | |
|---|---|---|---|
| Age (years)—mean ± SD | 58 ± 10 | 62 ± 10 | 0.129 |
| BMI (kg/m2)—mean ± SD | 28.0 ± 4.8 | 25.7 ± 3.3 | 0.046 |
| Men—n (%) | 22 (88) | 51 (68) | 0.068 |
| Paroxysmal AF—n (%) | 19 (76) | 46 (61) | 0.230 |
| Left atrial size (mm)—mean ± SD | 42 ± 6 | 39 ± 8 | 0.103 |
| Left atrial volume index (ml/m2)–mean ± SD | 35 ± 9 | 39 ± 13 | 0.2870 |
| Left ventricular ejection fraction (%)—mean ± SD | 57 ± 13 | 60 ± 10 | 0.235 |
| Reduced LVEF (<55%)—n (%) | 6 (24) | 18 (24) | 1.000 |
| Hypertension—n (%) | 11 (44) | 46 (61) | 0.163 |
| CAD—n (%) | 0 (0) | 2 (2) | 1.000 |
| eGFR (ml/min/1.73 m2) —mean ± SD | 85.4 ± 14.7 | 76.5 ± 19.8 | 0.061 |
| Chronic kidney disease—n (%)Stage | 0.378 | ||
| 1 (normal): eGFR ≥ 90 ml/min/1.73 m2 | 10 (40%) | 21 (28%) | |
| 2 (mild): eGFR = 60–89 | 15 (60%) | 44 (59%) | |
| 3a (mild-moderate): eGFR = 45–59 | 0 | 5 (7%) | |
| 3b (moderate-severe): eGFR = 30–44 | 0 | 3 (4%) | |
| 4 (severe): eGFR <30 | 0 | 2 (3%) |
NC, no-contrast protocol; AF, atrial fibrillation; eGFR, estimated glomerular filtration rate; IQR, interquartile range; CAD, coronary artery disease.