Skip to main content

Table 1 Baseline characteristics

From: Long-term clinical outcome of patients with severe atherosclerotic renal artery stenosis after percutaneous transluminal renal angioplasty

  Stenosis grade
Baseline Characteristics All Low Intermediate High  
  75≤, < 90% 90≤, < 95% 95%≤ p value
N = 74 N = 24(33%) N = 38(51%) N = 12(16%)  
Stenosis rate (%) 87 ± 8.7     
Age (year) 72 ± 7 72 ± 5 72 ± 7 72 ± 8 0.95
Male (%) 70 75 68 83 0.59
Smoking (%) 75 65 54 67 0.73
Comorbidities (%)
DM 34 29 32 50 0.43
Hypertension 100 100 100 100
Hyperlipidemia 61 63 56 75 0.48
IHD 92 92 97* 75** 0.047
CVD 19 17 16 33 0.38
PAD 36 42 34 33 0.82
Blood pressure
Systolic (mmHg) 147 ± 22 145 ± 21 145 ± 20 160 ± 27 0.10
Diastolic (mmHg) 79 ± 12 79 ± 14 79 ± 9 84 ± 17 0.45
Laboratory data
BUN (mg/dl) 22.5 ± 11.7 19.2 ± 7.9 21.6 ± 11.8 31.0 ± 16.7 0.07
Creatinine (mg/dl) 1.27 ± 0.68 1.20 ± 0.59* 1.10 ± 0.35* 1.95 ± 1.14** 0.0004
eGFR (mL/min/1.73 m2) 47.9 ± 16.1 49.3 ± 15.0 51.1 ± 14.5 35.2 ± 18.2 0.0087
Albumin (g/dl) 4.0 ± 0.4 4.0 ± 0.4 4.1 ± 0.4 3.8 ± 0.7 0.43
LDL-Cho (mg/dl) 99 ± 27 90 ± 25* 98 ± 23 118 ± 36** 0.017
U-TP (g/gcr) 1.5 ± 0.3 0.29 ± 0.74* 0.22 ± 0.62* 1.21 ± 1.44** 0.002
Stenosis findings
Lateral RAS (%) 76 87* 76 50** 0.047
Bilateral RAS (%) 24 13* 24 50**
Renal size (cm) 9.4 ± 0.9 9.5 ± 0.8 9.2 ± 1.0 8.8 ± 0.7 0.10
PSV (cm/s) 254 ± 99 233 ± 54* 280 ± 106* 199 ± 120** 0.032
EDV (cm/s) 65 ± 9 57 ± 11* 77 ± 15* 40 ± 22** 0.011
Resistive index 0.75 ± 0.10 0.75 ± 0.09 0.73 ± 0.08 0.79 ± 0.08 0.14
Medical therapy (%)
ARB 45 42 47 33 0.58
ACEi 27 42 16 33 0.10
Ca blocker 65 58 63 83 0.48
β or α/β blocker 38 46 32 42 0.76
Statin 58 50 61 67 0.13
Observational period
Median (IQR), months 83(49,106) 89(51,114) 76(48,105) 80(56,95) 0.69
  1. Data were expressed as mean ± SD or %
  2. Expanded abbreviation; RAS renal artery stenosis, DM diabetes meliitus, IHD ischemic heart disease, CVD cerebral vascular disease, PAD peripheral arterial disease, eGFR estimated glomerular filtration rate, U-TP urine total protein, PSV peak systolic velocity, EDV end-diastolic velocity, ARB angiotensin type II receptor blocker, ACEi angiotensin converting enzyme inhibitor
  3. P value was less than 0.05 by one-way analysis of variance
  4. P value between ** and * was less than 0.05 with post-hoc the Bonferroni test