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Far Infrared Therapy on Peripheral Artery Disease in Hemodialysis Patients

2014-07-23 21:09:42 | BioPortfolio

Summary

The prevalence of peripheral artery disease (PAD) defined as ankle-brachial index (ABI) less than 0.9 was about 15~30% in patients with end stage renal disease (ESRD), which was higher than those with normal renal function. A lower ABI and a higher brachial-ankle pulse wave velocity (baPWV) are good markers to predict the risk of PAD and atherosclerosis respectively. In addition, baPWV>2,100 cm/s was shown to be related to potential PAD. ABI <0.9 was positively associated with vascular access failure in hemodialysis (HD) patients and our previous study has demonstrated that far infrared (FIR) therapy can improve access flow and unassisted patency of atrioventricular (AV) fistula.

The aims of this study are to evaluate (1) the frequency of and (2) risk factors associated with abnormal ABI and PWV as well as (3) the effect of FIR on ABI and PWV and markers related to endothelial dysfunction in HD patients.

Description

In this study, 300 HD patients will be enrolled to receive ABI and baPWV and about 90 patients (30% according to the literature review) who have abnormal ABI (<0.9) or baPWV (>2100 cm/sec) will be randomly allocated to FIR group (receiving FIR therapy for 40 minutes thrice weekly) and control group (without FIR therapy). In patients with abnormal ABI or baPWV, the effect of single or one-year treatment of FIR on the following items will be studied: (1) ABI, (2) baPWV and (3) markers related to endothelial dysfunction [including low and high density lipoprotein cholesterol (LDL and HDL), asymmetric dimethylarginine (ADMA), hypersensitive C-reactive protein (hsCRP), matrix metalloproteinase-9 (MMP-9)]. The effect of FIR on PAD or cardiovascular events during one year of follow-up will also be studied.

This study will allow us to identify the frequency of and the risk factors associated with abnormal ABI & PWV as well as the effect of single or one-year FIR therapy on ABI & PWV in HD patients.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment

Conditions

Peripheral Artery Disease

Intervention

WSTM TY101 FIR emitter (Far infrared therapy), Placebo device

Location

Taipei Veterans General Hospital
Taipei
Taiwan
112

Status

Recruiting

Source

Taipei Veterans General Hospital,Taiwan

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:09:42-0400

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