Table 5.
Preoperative dynamic measurements by forearm fistula outcome
| Dynamic Parameter | Immature | Mature | P |
|---|---|---|---|
| Pre PSV (Cm/s) | 57 ± 18 | 53 ± 22 | 0.41 |
| Post PSV (cm/s) | 60 ± 22 | 58 ± 19 | 0.70 |
| Pre EDV (cm/s) | 1.6 ± 2.8 | 1.4 ± 2.9 | 0.79 |
| Post EDV (cm/s) | 13 ± 9 | 13 ± 12 | 0.94 |
| ΔPSV (cm/s) | 3 ± 13 | 5 ± 16 | 0.57 |
| Pre RI | 0.96 ± 0.06 | 0.94 ± 0.16 | 0.35 |
| Post RI | 0.78 ± 0.12 | 0.80 ± 0.12 | 0.67 |
| ΔRI | −0.18 ± 0.12 | −0.14 ± 0.20 | 0.31 |
aData are means ± SD. Pre, values measured during sustained fist clenching; Post, values measured after release of fist clenching; PSV, peak systolic velocity; EDV, end-diastolic velocity; ΔPSV, Post PSV − Pre PSV; ΔRI, Post resistive index − Pre resistive index.