Target region oxygenation-based endovascular treatment in a chronic limb-threatening ischemia patient with multifocal
Naoki Unno1,2,3, Kazunori Inuzuka1,2, Masaki Sano1,2
1Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Abstract:
Patients with chronic limb-threatening ischemia often have multiple segmental diseases requiring revascularization. However, there is no defined milestone to indicate sufficient endovascular treatment (EVT). Using multiple near-infrared spectroscopic oximeters, we intraoperatively monitored regional tissue oxygen saturation (rSO2) to perform target region oxygenation-based EVT for a patient with chronic limb-threatening ischemia. Stent placement at the superficial femoral artery and angioplasty of the tibioperoneal trunk enabled rSO2 in the target ischemic regions (dorsal foot and heel) to be >50% for ulcer healing. We herein describe target region oxygenation-based EVT with rSO2 monitoring as an effective strategy for performing the minimum requisite procedures.
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