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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.