Table 1. Patient data.
| Parameter | All (n = 35) |
Occlusion (n = 27) |
Stenosis (n = 8) |
p-value |
|---|---|---|---|---|
| Age [y] (median (range)) | 72 (48–87) | 72 (48–87) | 66 (48–85) | 0.34 |
| Length of lesion [cm] (mean ± SD) | 9.6 ± 7.8 | 10.9 ± 7.8 | 5.1 ± 6.3 | 0.01 |
| Degree of collateralization (median (range)) | 2 (1–3) | 2 (1–3) | 2 (2–3) | 0.29 |
| ABI (mean ± SD) * | 0.62 ± 0.15 | 0.60 ± 0.14 | 0.71 ± 0.18 | 0.19 |
| ABP [mmHg] (mean ± SD) * | 86.6 ± 38.0 | 79.9 ± 23.9 | 116.0 ± 71.3 | 0.49 |
| SPO level (median (range)) | 2 (1–3) | 2 (1–3) | 2 (1–3) | 0.80 |
| PSV [m/s] (mean ± SD) * | 1.39 ± 1.74 | 0.89 ± 1.11 | 2.98 ± 2.45 | 0.02 |
| BF [ml/100ml*min-1] (mean ± SD) | 7.71 ± 2.96 | 8.14 ± 3.11 | 6.26 ± 1.85 | 0.13 |
| BV [ml/100ml] (mean ± SD) | 0.71 ± 0.33 | 0.77 ± 0.35 | 0.54 ± 0.16 | 0.07 |
| MTT time [s] (mean ± SD) | 7.22 ± 2.66 | 7.34 ± 2.94 | 6.80 ± 1.45 | 0.86 |
ABI: ankle-brachial pressure index, ABP: ankle blood pressure, BF: blood flow, BV: blood volume, MTT: mean transit time, PSV: peak systolic velocity, SD: standard deviation, SPO: segmental pulse oscillography.
* ABI and ABP values available in 28 patients (22 occlusions, 6 stenoses), PSV values available in 29 patients (22 occlusions, 7 stenoses).