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Cut-off values for flap perfusion monitoring
| Flap type | Cut-off values | ||
|---|---|---|---|
| Blood flow | Hemoglobin [c] | Hemoglobin oxygen saturation | |
| RFFF | < 60 AU | > 100 AU/ > 10% increase | < 40% |
| ALTF | < 40 AU | > 80 AU/ > 10% increase | < 30% |
Cut-off values for blood flow, hemoglobin concentration and hemoglobin oxygen saturation indicating vascular compromise for flap perfusion monitoring with attached surface probes; abbreviations
AU arbitrary units, [c] concentration
