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Intra Tester Reliability of Sympathetic Skin Responses in Subjects With Primary Palmar Hyperhidrosis Publisher Pubmed



Ghandali E1 ; Hosseini SM2 ; Moghimi HR3 ; Khademikalantari K2 ; Talebian Moghadam S4 ; Baghban AA5 ; Mortazavi SM3
Authors
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Authors Affiliations
  1. 1. Department of Physiotherapy, School of Rehabilitation, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Proteomics Research Center, Department of Biostatistics, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: Journal of Bodywork and Movement Therapies Published:2020


Abstract

Background: Primary palmar hyperhidrosis (PPH) is a disorder related to sympathetic dysfunction. Iontophoresis can be used to reduce sweating rate. Sympathetic skin response (SSR) is commonly used to evaluate the sympathetic system. However, scarce evidence exists about the reliability of SSR parameters. Objective: To assess the relative and absolute reliability of SSR before and after the application of iontophoresis with aluminum chloride hexahydrate (ACH) gel or tap water in subjects with PPH. Methods: Twenty subjects were randomized to receive either iontophoresis with ACH gel or tap water. Three SSRs (amplitude and latency) with 5 s intervals from both hands in both groups were recorded before and after the application of iontophoresis for 30 min. Reliability of amplitude and latency of the SSR was assessed using intraclass correlation coefficient (ICC) with 95% confidence intervals, standard error of measurement (SEM), and minimal detectable change (MDC). Results: Amplitudes and latencies of SSR showed good to excellent test–retest reliability for ICC in both groups before iontophoresis. Except for right hand latency which was moderate (0.5–0.75). After iontophoresis, the ACH gel group still showed good to excellent agreement for SSR parameters, while the reliability of SSR parameters in the tap water group was reduced. Conclusion: Subjects with PPH showed high intra-rater reliability for SSR parameters which was maintained after ACH gel iontophoresis and decreased after tap water iontophoresis. It seems that media used for iontophoresis or the state of media (gel vs liquid) may affect the reliability of SSR. Further research is recommended. © 2020
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