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Table 2 Angiographic characteristics compared between the PTRA and PTRAS groups

From: Long-term outcome of percutaneous transluminal renal angioplasty (PTRA) versus PTRA with stenting (PTRAS) in transplant renal artery stenosis

Angiographic characteristics

Overall (n = 65)

PTRA (n = 34)

PTRAS (n = 31)

p value

Time from transplant to TRAS, months

3.5 (2.1–6.0)

3.1 (2.1–6.2)

4.0 (2.2–6.0)

0.723

Time from transplant to PTRA/PTRAS, months

4.0 (3.0–7.0)

4.4 (3.0–8.0)

5.0 (3.0–7.0)

0.974

Vessel diameter (mm)

5.7 ± 3.3

5.9 ± 4.5

5.6 ± 0.9

0.672

Stenosis severity (%)

69.4 ± 17.9

67.4 ± 17.8

71.6 ± 18.1

0.343

Type of anastomosis

    

 End-to-side

64 (98.5%)

33 (97.1%)

31 (100.0%)

1.000

 End-to-end

1 (1.5%)

1 (2.9%)

0 (0.0%)

 

Location of stenosis

    

 Anastomosis

34 (52.3%)

17 (50.0%)

17 (54.8%)

1.000

 Pre-anastomosis

1 (1.5%)

1 (2.9%)

0 (0.0%)

 

 Post-anastomosis

23 (35.4%)

34 (52.3%)

11 (35.5%)

 

 Iliac artery

3 (4.6%)

12 (35.3%)

1 (3.2%)

 

 Anastomosis and post-anastomosis

1 (1.5%)

2 (5.9%)

0 (0.0%)

 

 Anastomosis and iliac artery

3 (4.6%)

1 (2.9%)

2 (6.5%)

 
  1. Data presented as number and percentage, median (25th-75th percentiles), or mean ± standard deviation
  2. PTRA, percutaneous transluminal renal angioplasty; PTRAS, percutaneous transluminal renal angioplasty with stenting; TRAS, transplant renal artery stenosis
  3. A p-value < 0.05 indicates statistical significance