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Table 4 Clinical and ultrasonographic parameters of the study population at baseline according to blood pressure outcome

From: Predictive role of renal resistive index for clinical outcome after revascularization in hypertensive patients with atherosclerotic renal artery stenosis: a monocentric observational study

  Benefit (n = 90) Failure (n = 42)
Clinical parameters   
Age (years) 62.0 ± 10.1 61.3 ± 12.1
Male sex (%) 64.4 61.9
BMI (Kg/m 2 ) 25.7 ± 3.6 25.0 ± 3.5
Current smoking (%) 28.2 33.3
Previous cardiovascular events (%) 25.3 31.4
Hypercholesterolemia (%) 77.5 64.1
Diabetes (%) 18.3 17.1
Hypertension duration (years) 7.3 ± 7.1† 12.1 ± 11.1
Systolic blood pressure (mmHg) 162.6 ± 22.8 161.9 ± 17.8
Diastolic blood pressure (mmHg) 92.5 ± 13.7 † 85.9 ± 14.2
Pulse pressure (mm Hg) 70.1 ± 16.3† 76.3 ± 17.5
Number of antihypertensive drugs 2.1 ± 0.9 2.2 ± 1.0
RAS-blockers therapy 58.8 62.2
Antithrombotic therapy (%) 61.9 58.9
Cholesterol-lowering therapy (%) 36.7 31.0
Serum creatinine (mg/dl) 1.37 ± 0.66 1.36 ± 0.69
Creatinine clearance (ml/min) 64.3 ± 30.4 69.6 ± 27.6
Estimated GFR (ml/min/1.73 m 2 ) 59.9 ± 20.8 61.4 ± 22.4
Albuminuria (mg/24 h) 22 ± 39† 359 ± 520
Ultrasonographic parameters Stenotic kidney Contralateral kidney Stenotic kidney Contralateral kidney
Resistive index 0.62 ± 0.13* 0.67 ± 0.10 0.65 ± 0.12* 0.68 ± 0.11
Pulsatility index 1.07 ± 0.35* 1.21 ± 0.28 1.17 ± 0.39* 1.27 ± 0.42
Renal longitudinal diameter 10.5 ± 1.2 10.8 ± 1.7 10.4 ± 1.6 10.5 ± 1.6
Renal to aortic ratio 4.1 ± 0.9* 1.8 ± 1.0 3.9 ± 1.1* 1.7 ± 0.9
  1. *p < 0.05 vs contralateral kidney, †p < 0.05 vs failure group.