International Journal of Medical Sciences

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24 November 2017

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Int J Med Sci 2016; 13(12):970-976. doi:10.7150/ijms.17329

Research Paper

Association of Far-Infrared Radiation Therapy and Ankle-Brachial Index of Patients on Hemodialysis with Peripheral Artery Occlusive Disease

Szu-Chia Chen1,2,4,6, Mei-Yueh Lee1,3,6, Jiun-Chi Huang1,2,4, I-Ching Kuo1,2, Hsiu-Chin Mai5, Po-Lin Kuo1,7, Jer-Ming Chang2,8✉, Shang-Jyh Hwang2,6, Hung-Chun Chen2,6

1. Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan;
2. Division of Nephrology,
3. Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;
4. Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;
5. Department of Nursing, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan;
6. Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan;
7. Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, Taiwan;
8. Department of Internal Medicine, Kaohsiung Municipal Cijin Hospital (Operated by Kaohsiung Medical University), Kaohsiung, Taiwan.

Abstract

Background and Aim: The ankle-brachial index (ABI) is recognized to be a good marker for atherosclerosis, and is useful in the diagnosis of peripheral artery occlusive disease (PAOD) which is prevalent among patients on hemodialysis (HD).

Methods: This randomized trial aimed to evaluate the effect of far-infrared radiation (FIR) therapy on ABI in HD patients with PAOD. PAOD was defined as patients with ABI < 0.95. One hundred and eight HD patients were enrolled, including 50 in the control group and 58 in the FIR group. A WS TY101 FIR emitter was applied for 40 minutes during each HD session, three times per week for six months. The ABI was measured before and after the FIR therapy.

Results: Regardless of FIR therapy, the bilateral ABI decreased (in the FIR group, left: 0.88±0.22 to 0.85±0.24, p = 0.188; right: 0.92±0.20 to 0.90±0.23, p = 0.372; in control group, left: 0.91±0.23 to 0.88±0.21, p = 0144; right: 0.93±0.17 to 0.89±0.21, p = 0.082). Multivariate logistic analysis of the FIR group revealed that high uric acid (odds ratio [OR]: 2.335; 95% confidence interval [CI]: 1.117-4.882; p=0.024) and aspirin use (OR: 16.463; 95% CI: 1.787-151.638; p=0.013) were independently associated with increased bilateral ABI after FIR therapy.

Conclusions: This study demonstrates that ABI is not increased after FIR therapy in HD patients with PAOD. However, in the FIR group, patients with higher uric acid level or those who used aspirin have increased bilateral ABI after FIR therapy.

Keywords: ankle-brachial index, peripheral artery occlusive disease, far-infrared therapy, hemodialysis.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
How to cite this article:
Chen SC, Lee MY, Huang JC, Kuo IC, Mai HC, Kuo PL, Chang JM, Hwang SJ, Chen HC. Association of Far-Infrared Radiation Therapy and Ankle-Brachial Index of Patients on Hemodialysis with Peripheral Artery Occlusive Disease. Int J Med Sci 2016; 13(12):970-976. doi:10.7150/ijms.17329. Available from http://www.medsci.org/v13p0970.htm