Table 4 Relation between outcome of fistula and preoperative ultrasound findings
Studied variables | Outcome of fistula | Test of sig. | P value | |
|---|---|---|---|---|
Mature (N = 82) | Failed (n = 18) | |||
Cephalic vein diameter (mm) | t test = 9.50 | 0.001** | ||
Mean ± SD | 2.39 ± 0.19 | 2.0 ± 0.13 | ||
Median | 2.40 | 2.0 | ||
Range | 2.0–2.8 | 1.7–2.2 | ||
Radial artery peak systolic velocity cm/sec | U = 4.41 | 0.001** | ||
Mean ± SD | 68.1 ± 11.1 | 48.5 ± 15.7 | ||
Median | 64.5 | 43.0 | ||
Range | 54.0–88.0 | 32.0–85.0 | ||
Radial artery diameter (mm) | t test = 11.2 | 0.001** | ||
Mean ± SD | 2.29 ± 0.262 | 1.78 ± 0.150 | ||
Median | 2.30 | 1.75 | ||
Range | 1.8–2.7 | 1.6–2.1 | ||
Brachial artery peak systolic velocity cm/sec | U = 6.04 | 0.001** | ||
Mean ± SD | 77.0 ± 10.9 | 60.4 ± 13.5 | ||
Median | 74.5 | 56.0 | ||
Range | 60.0–93.0 | 43.0–92.0 | ||
Brachial artery diameter (mm) | t test = 2.61 | 0.011* | ||
Mean ± SD | 4.56 ± 0.52 | 4.26 ± 0.425 | ||
Median | 4.75 | 4.2 | ||
Range | 3.0–5.2 | 3.4–5.6 | ||