Table 5 US variables of the two groups before and after PTA.

From: Patency and factors related to patency after percutaneous transluminal angioplasty for inflow arterial stenosis in native arteriovenous fistula dysfunction: a single-center retrospective study

Variable

AVF + iAS

AVF + iAS + VS

Before PTA

After PTA

t

P

Before PTA

After PTA

t

P

Resistance index

0.75 ± 0.13

0.49 ± 0.09

22.16

< 0.001

0.74 ± 0.15

0.49 ± 0.10

11.03

< 0.001

Brachial artery flow rate, mL/min

280.79 ± 141.62

962.39 ± 276.66

29.49

< 0.001

364.08 ± 164.78

1041.13 ± 288.04

15.51

< 0.001

Artery diameter, mm

1.24 ± 0.45

2.95 ± 0.65

16.63

< 0.001

1.26 ± 0.40

2.94 ± 0.54

33.01

< 0.001

  1. Data are presented as mean ± standard deviation.
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