Protective effect of various durations of far-infrared radiation on autogenous arteriovenous fistula in mainte-nance hemodialysis patients

SHEN Yan; HUANG You-fang; DA Jing-jing; HU Ying; ZHAO Jian-qiu; ZHA Yan

Abstract：Objective To investigate the treatment effect of far infrared radiation on autogenous arteriovenous fis -tula in patients on maintenance hemodialysis .Methods Patients on autogenous arteriovenous fistula for more than one year were divided into the 20 min group, 40 min group, 60 min group and the control group .Each group had 20 patients. The first 3 groups received far -infrared radiation for 20, 40 and 60 min at each time of dialysis, respectively, 3 times a week, for 6 months.The control group only received regular dialysis treatment .Blood flow changes and the incidence of fistula dysfunction were recorded.Levels of high-sensitivity C-reactive protein (hsCRP) and interleukin-8 (IL-8) were detected by ELISA .Results Compared with the control group , after far-infrared radiation therapy for six months , increases of blood flow in 20 min, 30 min, 40 min groups were significantly higher (P<0.05).Blood flow increase in the 40 min and 60 min groups were higher than 20 min group (P<0.05).There was no statistically significant difference in blood flow increase between the 60 min and 40 min group.After six months of far -infrared radiation therapy, serum hsCRP and IL -8 decreased compared with the control group , but the differences among 20 min, 30 min, 40 min groups were not statistically significant (P>0.05).Levels of serum hsCRP and IL -8 were lower in the 40 min group and 60 min group than the 20 min group, but similar between the 40 min group and the 60 min group.Conclusion Far-infra-red radiation session of 40 min, three times a week delivers the best treatment effects and worthy of clinical application on autogenous arteriovenous fistula in maintenance hemodialysis patients .