Table 1. Patients’ characteristics in this study.
| Bioprosthetic valve | Mechanical valve | |||||
|---|---|---|---|---|---|---|
| HD patients (n = 60) | Non-HD patients (n = 152) | P-Value | HD patients (n = 8) | Non-HD patients (n = 18) | P-Value | |
| Age, years | 71 (53–85) | 75 (65–86) | <0.01a | 59 (33–68) | 59 (29–71) | 0.55 |
| Male (%) | 38 (63) | 81 (53) | 0.18 | 4 (50) | 8 (44) | 0.56 |
| BSA (m2) | 1.53 ± 0.16 | 1.58 ± 0.17 | 0.87 | 1.55 ± 0.21 | 1.60 ± 0.23 | 0.60 |
| Smoking history (%) | 35 (58) | 71 (47) | 0.43 | 2 (25) | 6 (33) | 0.52 |
| Hypertension (%) | 46 (77) | 123 (81) | 0.72 | 7 (88) | 11 (61) | 0.19 |
| Diabetes mellitus (%) | 18 (30) | 40 (26) | 0.61 | 2 (25) | 3 (17) | 0.50 |
| Hypercholesterolemia (%) | 17 (28) | 68 (45) | 0.02a | 1 (13) | 6 (33) | 0.51 |
| History of CVD (%) | 13 (22) | 20 (13.2) | 0.40 | 1 (13) | 5 (28) | 0.38 |
| History of CAD (%) | 20 (33) | 38 (25) | 0.53 | 0 (0) | 1 (6) | 0.22 |
| Ejection fraction (%) | 50 | 54 | 0.21 | 62 | 62 | 0.20 |
| NYHA class ≥3 (%) | 14 (23) | 26 (17) | 0.32 | 1 (13) | 6 (33) | 0.27 |
| Preop Ca (mg/dl) | 9.1 ± 0.8 | 9.3 ± 0.7 | 0.07 | 9.1 ± 0.7 | 9.3 ± 0.2 | <0.01a |
| Preop P (mg/dl) | 4.5 ± 1.1 | 3.4 ± 0.5 | <0.01a | 5.0 ± 2.0 | 3.2 ± 0.6 | <0.01a |
| Oral vitamin D (%) | 26 (43) | 8 (5) | <0.01a | 4 (50) | 0 (0) | <0.01a |
| AAC score | 13.1 ± 6.5 | 6.5 ± 2.9 | <0.01a | 11.6 ± 8.2 | 0.7 ± 0.9 | <0.01a |
Values are mean ± SD or n (%) unless otherwise specified.
aStatistically significant (P <0.05)
HD: hemodialysis; BSA: body surface area; CVD: cerebrovascular disease; CAD: cardiovascular disease; NYHA: New York Heart Association; Preop Ca: preoperative serum calcium level; Preop P: preoperative serum phosphate level; AAC: abdominal aorta calcification; SD: standard deviation