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Water-soluble adhesive for stable long-term ambulatory EEG recordings
Ewan S Nurse1, Kristan Marlow2, Patrick J Hennessy2
1Seer Medical, Melbourne 3000, Australia; Department of Medicine, St. Vincent's Hospital Melbourne, University of Melbourne, Parkville 3052, Australia.
Summary
A new water-soluble polymer adhesive allows for comfortable, long-term electroencephalogram (EEG) monitoring at home for up to six days. This novel adhesive maintains acceptable electrode impedance, improving patient comfort and data quality for ambulatory EEG studies.
Area of Science:
- Neuroscience
- Biomaterials Science
Background:
- Conventional methods for adhering electroencephalogram (EEG) electrodes can cause discomfort.
- Long-term ambulatory EEG studies require reliable and comfortable electrode fixation.
Purpose of the Study:
- To evaluate a novel polymer-based, water-soluble EEG adhesive for long-term use.
- To assess electrode impedance over a 6-day period with the new adhesive.
Main Methods:
- Utilized a novel electrode adhesive for EEG electrode attachment.
- Remotely logged impedance measurements daily for 841 EEG recordings over 6 days.
- Instructed patients on electrode maintenance on day 4.
Main Results:
- Median electrode impedances remained below 10 kOhms throughout the 6-day study, with a day 6 median of 4.18 kOhms.
- Electrode impedance decreased after patient maintenance on day 4.
- No significant differences in impedance were observed based on geographic remoteness or patient age.
Conclusions:
- The polymer-based adhesive enables 6-day ambulatory EEG recording in patient homes with acceptable impedance.
- The novel adhesive offers a comfortable alternative to conventional methods.
- This study provides the first impedance data for long-term ambulatory EEG using this type of adhesive.
