目的对比分析并观察慢性肾衰竭(CRF)行血液透析(HD)患者使用FIR 改善血管弹性和内径的临床疗效。方法回顾性分析血管条件欠佳难建立或AVF 失败患者47 例，根据治疗方式分为远红外线治疗仪(FIR)组27 例和非远红外线治疗仪(非FIR)组20 例，对比分析2 组治疗前及治疗3 周后血管内径及血管阻尼指数的变化，比较2 组患者的预后。结果治疗后2 组患者血管内径及血管阻尼指数均有明显差异(P＜0.05)；2 组3 周后均行手术建立AVF，FIR 组成功25 例，失败2 例；非FIR 组成功13 例，失败7 例，2 组建立AVF 成功率具有统计学差异(P＜0.05)。结论血管条件欠佳的CRF 患者使用FIR 治疗后，血管条件得到了明显改善，相较非FIR组提高了手术建立AVF 的成功率。

Objective To analyze the efficacy of far infrared (FIR) radiation on blood vessel elasticity and inner diameter in chronic renal failure patients on hemodialysis. Methods Forty-seven hemodialysis patients with failed arteriovenous fistula (AVF) or difficults to establish AVF were retrospectively analyzed. They were then divided into FIR radiation group (n=27) and non-FIR radiation group (n=20). Diameter and damping index of the blood vessels and prognosis of the patients were compared between the two groups before and after the therapy for 3 weeks. Results Diameter and damping index of the vessels were apparently different between the two groups (P ＜0.05). After the therapy for 3 weeks, AVF surgery was successful in 25 cases in FIR group and in 13 cases in non-FIR group, and was failed in 2 cases in FIR group and in 7 cases in non-FIR group, significantly different between the two groups (P ＜0.05). Conclusion In renal failure patients
with unfavorable vascular condition for AVF establishment, the success rate of AVF surgery increased significantly after FIR radiation.