Table 1.
General characteristics of study groups divided according to cardiac rhythm.
| Total | Subgroup | |||
|---|---|---|---|---|
| Sinus rhythm | Atrial fibrillation | p | ||
| All patients, N (%) | 113 (100) | 90 (79.65) | 23 (20.35) | |
| Males, N (%) | 65 (57.52%) | 50 (55.56) | 15 (65.22) | 0.403 |
| Age (years) | 64.000 (58.0–69.0) | 64.0 (55.00–68.00) | 66.0 (62.00–73.00) | 0.039 |
| Body surface area (BSA) (m2) | 1.949 (1.782–2.132) | 1.935 (1.71–2.11) | 2.049 (1.88–2.33) | 0.034 |
| SBP (mmHg) | 134.0 (120.0–146.0) | 135 (120–147) | 130 (124–135) | 0.138 |
| DBP (mmHg) | 80.0 (70.0–86.0) | 80 (70–86) | 83 (70–88) | 0.276 |
| Heart rate on admission (bpm) | 70.0 (65.0–80.0) | 70 (64–77) | 80 (67–90) | 0.004 |
| Width of the QRS complex (ms) | 99 (84–121.5) | 98 (84–116) | 112 (96–136) | 0.004 |
| QTcBAz (ms) | 442 (425–475) | 437 (424–462) | 467.5 (437–494.5) | 0.005 |
| Ischemic etiology, N (%) | 48 (42.48%) | 43 (47.78) | 5 (21.74) | 0.024 |
| Non-ischemic etiology, N (%) | 65 (57.52%) | 47 (52.22) | 18 (78.26) | 0.024 |
| NYHA class on admission | 2 (2.0–2.5) | 2 (2.0–2.0) | 3 (2.5–3.0) | <0.001 |
| 6MWT distance (m) | 370.5 (290.7–449.2) | 378.4 (306.1–457.0) | 292.35 (201.3–349.3) | 0.001 |
| KCCQ score (point) | 70.05 (50.0–83.33) | 73.96 (57.29–83.98) | 52.60 (38.28–71.15) | 0.002 |
| Coronary artery disease, N (%) | 53 (46.90) | 47 (52.2) | 6 (26.09) | 0.025 |
| Mitral regurgitation, N (%) | 55 (48.67%) | 39 (43.33) | 16 (69.57) | 0.025 |
| Aortic regurgitation, N (%) | 16 (14.16%) | 11 (12.22) | 5 (21.74) | 0.243 |
| Tricuspid regurgitation, N (%) | 40 (35.40%) | 25 (27.78) | 15 (65.22) | 0.001 |
| Aortic stenosis, N (%) | 5 (4.42%) | 3 (3.33) | 2 (8.69) | 0.268 |
| Diabetes mellitus, N (%) | 31 (27.43) | 22 (24.44) | 9 (39.13) | 0.159 |
| Arterial hypertension, N (%) | 83 (73.45) | 61 (67.78) | 22 (95.65) | 0.007 |
| Hyperlipidemia, N (%) | 86 (76.11%) | 69 (76.67) | 17 (73.91) | 0.782 |
| ACEI, N (%) | 75 (66.37) | 60 (66.67) | 15 (65.22) | 0.896 |
| ARB, N (%) | 18 (15.93) | 13 (14.44) | 5 (21.74) | 0.522 |
| BB, N (%) | 98 (86.73) | 78 (86.67) | 20 (86.96) | 1.00 |
| MRA, N (%) | 52 (46.02) | 39 (43.33) | 13 (56.52) | 0.257 |
| Diuretics, N (%) | 65 (57.52) | 47 (52.22) | 18 (78.26) | 0.033 |
Data are given as median (interquartile range) unless otherwise indicated. A p-value of <0.05 is considered statistically significant.
DBP, diastolic blood pressure; SBP, systolic blood pressure; QTcBAz, QT interval corrected for heart rate; NYHA, New York Heart Association; 6MWT, 6-min walk test; KCCQ, Kansas City Cardiomyopathy Questionnaire; ACEI, angiotensin-converting enzyme inhibitors; ARB, angiotensin receptor blockers; BB, beta blockers; MRA, mineralocorticoid receptor antagonists. Bold values are statistically significant data.