Hyperspectral imaging for objective microcirculatory assessment in trauma patients.
Hyperspectral tissue oxygenation had high negative predictive value for trauma in-hospital mortality
Hyperspectral imaging for objective microcirculatory assessment in trauma patients.
Hyperspectral imaging (hyperspectral imaging) is a non-invasive technology capable of assessing microcirculatory impairment.
This study evaluated whether hyperspectral imaging can detect early microcirculatory alterations in trauma patients and differentiate between those with hemodynamic instability or stability during initial trauma resuscitation.
In this prospective single-center observational study at a German level I trauma center (01/2023-10/2024), patients underwent hyperspectral imaging (TIVITA ® 2.0) at three time points: during the primary survey, after resuscitation room care, and 24 h after admission.
Higher tissue oxygenation levels almost always correctly ruled out death, but rarely confirmed it
The primary outcome was the difference in StO₂ between patients with and without hemodynamic instability at the initial hyperspectral imaging measurement.
No significant difference in initial StO₂ was observed between groups (hemodynamic instability: 56.50 (SD 17.08) vs. hemodynamic stability: 59.48 (SD 10.92); p = 0.311).
Initial elevated lactate levels (≥ 2 mmol/L) were associated with significantly lower StO 2 levels (p = 0.002).
ROC analysis of StO₂ for predicting in-hospital mortality showed an area under the curve of 0.677 (95% CI 0.529-0.825).
Hyperspectral imaging did not discriminate between hemodynamically unstable and stable patients at initial trauma assessment but correlated well with high lactate levels.