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Auton Neurosci. 2012 Jul 2;169(1):56-61. doi: 10.1016/j.autneu.2012.04.001. Epub 2012 Apr 28.

Measures of small-fiber neuropathy in HIV infection.

Author information

  • 1Department of Medicine, Division of Infectious Diseases, Medical University of South Carolina, Charleston, SC 29412, United States. bogerm@musc.edu

Abstract

INTRODUCTION:

Noninvasive methods are needed to detect distal sensory polyneuropathy in HIV-infected persons on antiretroviral therapy (ART).

METHODS:

Quantitative sudomotor axon reflex test (QSART) and Utah Early Neuropathy Scale (UENS), small-fiber sensitive measures, were assessed in subjects with and without clinical neuropathy. Pain was assessed by visual analog scale (VAS).

RESULTS:

Twenty-two subjects had symptoms and signs of neuropathy, 19 had neither, and all were receiving ART. Median sweat volume (μL) was lower at all testing sites in those with neuropathy compared to those without (p<0.01 for all). UENS and VAS (mm) were higher in neuropathy subjects (p<0.05 for each). Lower sweat volume at all sites correlated with higher pin UENS subscore, total UENS, and VAS (p<0.05 for all). In multivariable analyses adjusting for age, CD4⁺ T cells, sex, and use of "d-drug" ART, QSART and UENS remained associated (p=0.003).

CONCLUSION:

QSART and UENS have not been previously studied in this patient population and may identify small-fiber neuropathy in HIV-infected, ART-treated persons.

Copyright © 2012 Elsevier B.V. All rights reserved.

PMID:
22542355
[PubMed - indexed for MEDLINE]
PMCID:
PMC3372978
Free PMC Article
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