Microdermabrasion facilitates direct current stimulation by lowering skin resistance.
Date
2022-09
Journal Title
Journal ISSN
Volume Title
Citation Stats
Attention Stats
Abstract
Background
Transcranial direct current stimulation (tDCS) is reported to induce irritating skin sensations and occasional skin injuries, which limits the applied tDCS dose. Additionally, tDCS hardware safety profile prevents high current delivery when skin resistance is high.Objective
To test if decreasing skin resistance can enable high-dose tDCS delivery without increasing tDCS-related skin sensations or device hardware limits.Methods
We compared the effect of microdermabrasion and sonication on 2 mA direct current stimulation (DCS) through forearm skin for 2-3 min on 20 subjects. We also surveyed the subjects using a questionnaire throughout the procedure. We used a linear mixed-effects model for repeated-measures and multiple logistic regression, with adjustments for age, race, gender and visit.Results
Microdermabrasion, with/out sonication, led to significant decrease in skin resistance (1.6 ± 0.1 kΩ or ∼32% decrease, p < 0.0001). The decrease with sonication alone (0.4 ± 0.1 kΩ or ∼7% decrease, p = 0.0016) was comparable to that of sham (0.3 ± 0.1 kΩ or ∼5% decrease, p = 0.0414). There was no increase in the skin-electrode interface temperature. The perceived DCS-related sensations did not differ across skin preparation procedures (p > 0.16), but microdermabrasion (when not combined with sonication) led to increased perceived sensation (p < 0.01).Conclusions
Microdermabrasion (with/out sonication) resulted in reduced skin resistance without increase in perceived skin sensations with DCS. Higher current can be delivered with microdermabrasion-pre-treated skin without changing the device hardware while reducing, otherwise higher voltage required to deliver the same amount of current.Type
Department
Description
Provenance
Subjects
Citation
Permalink
Published Version (Please cite this version)
Publication Info
Chhatbar, PY, S Liu, V Ramakrishnan, MS George, SA Kautz and W Feng (2022). Microdermabrasion facilitates direct current stimulation by lowering skin resistance. Skin health and disease, 2(3). p. e76. 10.1002/ski2.76 Retrieved from https://hdl.handle.net/10161/34015.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
Collections
Scholars@Duke
Pratik Yashvant Chhatbar
Neuromodulation / Neuroprosthetics / Upcoming technologies
Wuwei Feng
Wayne Feng is the Chief of Division of Stroke & Vascular Neurology, Medical Director of Duke Comprehensive Stroke Center, and Tenured Profess of Neurology and Biomedical Engineering at Duke University School of Medicine. Dr. Feng is a board-certified vascular neurologist as well as a physician scientist. His research portfolios include developing imaging biomarker for post-stroke motor outcomes prediction, and use of non-invasive brain stimulation tools, such as, transcranial direct current stimulation (tDCS), vagus nerve stimulation, low intensity focused ultrasound and transcranial light stimulation to enhance post-stroke recovery. His research has been actively funded by the National Institute of Health (NIH), the American Heart Association/American Stroke Association (AHA/ASA) and other various sources. He is currently leading an NIH funded 8.9 million U01 12-center, phase II study called TRANSPORT 2 (TRANScranial direct current stimulation for POst-stroke motor Recovery – a phase II sTudy) – on the NINDS funded stroke trial network.
Dr. Feng has published over 150 peer reviewed manuscripts (H index of 36), including two manuscripts featured on the cover page of brain stimulation journal, and one manuscript featured on Journal of Neuroscience. He co-edited - “Cerebral Venous System in Acute and Chronic Brain Injuries” book. He served as the associate editor for Translational Stroke Research from 2019 to 2021(IF=7.0). Dr. Feng received several prestigious awards for his research work in stroke and stroke recovery including the FIRST “Rehabilitation Award” from the American Heart Association/American Stroke Association in 2015, “Franz Gerstenbrand Award” from World Federation of Neurorehabilitation (WFNR) in 2016, Arthur Guyton New Investigator Award, Consortium for Southeastern Hypertension Control (COSEHC) in 2016 and “Clinical Investigator Award” from the Society of Chinese American Physician Entrepreneur (SCAPE). Currently, he is the Section Chair of Neural Repair & Rehabilitation, the American Academy of Neurology. He leads the global mentoring program for the WFNR.
Unless otherwise indicated, scholarly articles published by Duke faculty members are made available here with a CC-BY-NC (Creative Commons Attribution Non-Commercial) license, as enabled by the Duke Open Access Policy. If you wish to use the materials in ways not already permitted under CC-BY-NC, please consult the copyright owner. Other materials are made available here through the author’s grant of a non-exclusive license to make their work openly accessible.