Abstract
The prognosis of critical limb ischemia(CLI)is poor and the restenosis rate is high. Moreover, severe pain due to ulcers in patients with lower leg arterial ischemia reduces the QOL. We report a case of repeated restenosis and refractory ulcers due to CLI that was cured using near-infrared irradiation and endovascular conventional treatment. A 70-year-old male with hypertension and smoking history undergoing hemodialysis received endovascular treatment 6 times for infra-popliteal lesions. As the ulcers and pain remained, we started near-infrared therapy in addition to the provision of modified relief sandals. After irradiation for 5 months, the ulcers disappeared and blood flow in the lower leg artery recovered.