Table 2 Comparison of flap perfusion measurement values.
Tissue depth | Timepoint of measurement | All | ||||
|---|---|---|---|---|---|---|
0 h | 12 h | 24 h | 36 h | 48 h | ||
Blood flow (AU) | ||||||
2 mm | 20.5 (24.0) | 24.0 (28.0) | 17.5 (23.0) | 26.0 (24.0) | 26.0 (28.0) | 21.5 (25.0) |
3 mm | 99.5 (74.0) | 103.0 (78.0) | 112.5 (93.0) | 116.5 (71.0) | 124.5 (68.0) | 110.0 (79.0) |
8 mm | 92.0 (67.0) | 105.5 (62.0) | 125.0 (82.0) | 125.5 (103.0) | 139.0 (105.0) | 113.5 (86.0) |
p-value 1 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
p-value 2 | 0.936 | 0.824 | 0.897 | 0.578 | 0.274 | 0.308 |
Hemoglobin concentration (AU) | ||||||
2 mm | 58.0 (26.0) | 53.0 (24.0) | 49.5 (20.0) | 48.5 (18.0) | 44.0 (23.0) | 50.0 (23.0) |
3 mm | 67.5 (31.0) | 69.0 (29.0) | 68.5 (27.0) | 67.0 (26.0) | 68.5 (26.0) | 68.0 (27.0) |
8 mm | 33.0 (10.0) | 32.0 (12.0) | 35.0 (12.0) | 33.5 (13.0) | 36.0 (14.0) | 34.0 (12.0) |
p-value 1 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
p-value 2 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
Hemoglobin oxygen saturation (%) | ||||||
2 mm | 51.0 (36.0) | 43.0 (31.0) | 50.0 (37.0) | 46.0 (31.0) | 46.5 (40.0) | 48.0 (34.0) |
3 mm | 61.0 (24.0) | 47.5 (32.0) | 56.5 (21.0) | 58.0 (22.0) | 62.0 (24.0) | 57.0 (23.0) |
8 mm | 69.5 (27.0) | 69.5 (30.0) | 67.0 (25.0) | 70.0 (25.0) | 70.0 (19.0) | 69.5 (24.0) |
p-value 1 | < 0.001 | 0.006 | 0.056 | 0.001 | < 0.001 | < 0.001 |
p-value 2 | 0.005 | < 0.001 | 0.003 | 0.001 | 0.029 | < 0.001 |
