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Oxygen Saturation Increase in Ischemic Wound Tissues after Direct and Indirect Revascularization
oleh: Austėja Račytė, Gabija Pikturnaitė, Tomas Baltrūnas, Evaldas Kalvaitis, Gediminas Vaitėnas, Arminas Skrebūnas, Vaida Baltrūnienė, Kęstutis Ručinskas
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2024-02-01 |
Deskripsi
Background: The primary approach for treating ischemic wounds is restoring oxygen supply to the ischemic region. While direct angiosomal revascularization is often associated with better post-operative wound healing and limb salvage, its superiority over non-angiosomal revascularization remains controversial. This study aimed to compare intraoperative tissue oxygen saturation changes in ischemic zones following either direct or indirect revascularization in below-the-knee arteries. Methods: This prospective observational study included patients undergoing direct and indirect below-the-knee endovascular revascularizations. Assignment to the groups was not randomized. Near-infrared spectroscopy was used to monitor rSO2 changes near the ischemic wounds intraoperatively. The changes were compared between the groups. Results: 15 patients (50%) underwent direct angiosomal revascularization, while an equal number of patients underwent indirect revascularization. Overall, a statistically significant increase in regional oxygen saturation was observed after revascularization (<i>p</i> = 0.001). No statistically significant difference was found between the direct and indirect revascularization groups (<i>p</i> = 0.619). Conclusions: This study revealed a minor difference in the oxygen saturation increase between the angiosomal and non-angiosomal revascularization groups. Such a finding indicates that the clinical significance of angiosomal revascularization is negligible and might be concealed by confounding factors, such as the vessel diameter and outflow impact on the restenosis rate.