Table 3: Association of artery diameter(mm) , PSV(cm/sec) and intimal wall calcification with AVF failure.

Artery diameter(mm)

With AVF failure(n=16)

Without AVF failure(n=24)

Total

P value

Radial artery

Mean ± SD

1.97 ± 0.29

2.19 ± 0.39

2.1 ± 0.37

0.064

Median(25th-75th percentile)

2(1.8-2.1)

2.15(1.9-2.325)

2.1(1.9-2.2)

Range

1.2-2.5

1.5-3.1

1.2-3.1

Brachial artery

Mean ± SD

3.34 ± 0.6

3.79 ± 0.72

3.61 ± 0.7

0.046

Median(25th-75th percentile)

3.15(2.8-3.925)

3.6(3.475-3.85)

3.6(3.1-3.925)

Range

2.6-4.4

2.9-5.4

2.6-5.4

 

PSV(cm/sec)

With AVF failure(n=16)

Without AVF failure(n=24)

Total

P value

Mean ± SD

55.93 ± 17.04

48.38 ± 15.1

51.4 ± 16.13

0.149

Median(25th-75th percentile)

54
(46.75-57.5)

45.5
(35.25-58.25)

51
(40.25-57.5)

Range

33-100

29-75

29-100

Intimal wall calcification in artery

With AVF failure(n=16)

Without AVF failure(n=24)

Total

P value

 

No

3 (13.64%)

19 (86.36%)

22 (100%)

0.0003*

 

Yes

13 (72.22%)

5 (27.78%)

18 (100%)

 

Total

16 (40%)

24 (60%)

40 (100%)

 

Independent t test.

* Fisher's exact test.