2. Clinical manifestations and laboratory findings of the patients grouped by etiology of renal artery stenosis.
| Variables | Atherosclerosis
(n = 84) |
Takayasu arteritis
(n = 46) |
Fibromuscular dysplasia
(n = 18) |
Other
(n = 4) |
P-value* |
| Data are presented as means ± SD or n (%). *Refers to judge the significance of differences between the atherosclerosis, Takayasu arteritis, and fibromuscular dysplasia groups, excepting the ‘other’ group. | |||||
| Constitutional symptoms | |||||
| Fever | 0 | 7 (15.2%) | 0 | 0 | < 0.01 |
| Malaise | 8 (9.5%) | 6 (13.0%) | 0 | 0 | 0.27 |
| Weight loss | 2 (2.4%) | 8 (17.4%) | 0 | 0 | < 0.01 |
| Neurological symptoms | |||||
| Headache | 17 (20.2%) | 8 (17.4%) | 5 (27.8%) | 0 | 0.65 |
| Syncope | 38 (45.2%) | 16 (34.8%) | 11 (61.1%) | 4 (100%) | 0.15 |
| Blurred vision | 7 (8.3%) | 3 (6.5%) | 1 (5.6%) | 1 (25.0%) | 0.60 |
| Vascular findings | |||||
| Cervicodynia | 1 (1.2%) | 6 (13.0%) | 0 | 0 | < 0.01 |
| Upper limb claudication | 2 (2.4%) | 6 (13.0%) | 0 | 0 | 0.02 |
| Lower limb claudication | 5 (6.0%) | 12 (26.1%) | 0 | 0 | < 0.01 |
| Pulselessness or asymmetric pulse | 7 (8.3%) | 9 (19.6%) | 0 | 0 | 0.04 |
| Asymmetric blood pressure | 7 (8.3%) | 18 (39.1%) | 0 | 0 | < 0.01 |
| Bruits | 16 (19.0%) | 32 (69.6%) | 2 (11.1%) | 0 | < 0.01 |
| Laboratory examinations | |||||
| White blood cell count, 109/L | 7.48 ± 1.78 | 7.72 ± 3.06 | 7.21 ± 2.47 | 8.18 ± 2.78 | 0.71 |
| Hemoglobin, g/L | 146.80 ± 16.26 | 128.87 ± 21.25 | 145.61 ± 16.29 | 149.00 ± 19.54 | < 0.01 |
| Erythrocyte sedimentation rate, mmol/h | 8.51 ± 7.18 | 19.22 ± 19.31 | 6.89 ± 5.41 | 11.75 ± 12.61 | < 0.01 |
| Hypersensitive C-reactive protein, mg/L | 2.80 ± 2.56 | 3.59 ± 3.73 | 1.69 ± 2.75 | 1.64 ± 0.65 | 0.07 |
| Total cholesterol, mmol/L | 4.79 ± 1.12 | 4.38 ± 0.93 | 4.16 ± 0.66 | 4.76 ± 2.06 | 0.02 |
| Triglyceride, mmol/L | 1.98 ± 1.38 | 1.33 ± 0.69 | 1.13 ± 0.61 | 1.73 ± 0.68 | < 0.01 |
| High-density lipoprotein, mmol/L | 1.10 ± 0.32 | 1.37 ± 0.43 | 1.43 ± 0.43 | 1.17 ± 0.25 | < 0.01 |
| Low-density lipoprotein, mmol/L | 3.03 ± 1.04 | 2.64 ± 0.77 | 2.47 ± 0.69 | 2.93 ± 1.62 | 0.02 |
| Hemoglobin A1c, % | 5.93 ± 0.96 | 5.51 ± 0.48 | 5.46 ± 1.29 | 6.25 ± 0.87 | 0.02 |
| Homocysteine, umol/L | 20.78 ± 12.46 | 15.55 ± 5.03 | 16.42 ± 8.01 | 26.77 ± 24.29 | 0.02 |
| Albumin, g/L | 45.08 ± 3.91 | 42.92 ± 3.93 | 46.32 ± 4.99 | 46.23 ± 4.50 | < 0.01 |