Abstract Details

Title The Use of Collodion versus Traditional Paste for Reducing Artifact in Ambulatory Electroencephalography Studies in the Pediatric Population

Topic Epilepsy/Clinical Neurophysiology (EEG)

Presentation(s) P4 - Poster Session 4 (5:30 PM-6:30 PM)

Poster/Presentation
Number 6-018

Objective

Determine if using collodion would reduce the amount of artifact observed in ambulatory electroencephalography (AEEG) studies in the pediatric population.

Background The pediatric population poses unique challenges to obtain quality long-term AEEG data due to excessive artifact. Collodion is frequently used in EEG studies due to its water resistance and strong adhesive qualities. The main complaint about collodion usage is the ethyl ether smell. Collodion is also flammable, so it needs to be properly stored and managed appropriately for any spillage. Surprisingly, there are limited studies in the literature about the best technique for prolonged EEG studies.

Design/Methods A total of 115 patients were enrolled. Patients were classified into two groups: traditional paste and collodion. Standard application of AEEG was performed. AEEGs were blindly analyzed by two epileptologists. The studies were evaluated for artifact at baseline and every four hours over 30 second increments. Sleep state, number of electrodes with artifact, and location of electrodes involved were also documented. T-test was performed to determine any difference between number of electrodes involved and seconds of artifact at each point of time between the paste and collodion groups.

Results 61 patients were in the paste group; 54 in collodion. Mean age in paste group was 10.29 years; 54.4% males. Mean age in collodion was 11.13 years; 45.6% males. Mean of total electrodes involved and total seconds of artifact between 24 to 48 hours in paste group was 5.5 (SD: ±3.7) and 57.7 seconds (SD: ±44.3) in comparison to 6.2 (SD: ±3.7) and 52.5 seconds (SD: ±36.2) in collodion group respectively (P= 0.522 & P= 0.698).

Conclusions We have shown that electrode problems are common with both collodion and traditional paste. However, for prolonged EEG monitoring, collodion may be a better alternative to prevent artifact. Further studies are needed to prove this hypothesis.

Authors/Disclosures
Danielle R. Brigham, MD (Northwell Health Child Neurology) PRESENTER	No disclosure on file
Yash Shah, MD, MBBS, MPH (OLOL)	Dr. Shah has nothing to disclose.
Ivan M. Pavkovic, MD (Cohen Children'S Medical Center)	No disclosure on file
Shefali Karkare, MD (Cohen Childrens Medical Center)	Dr. Karkare has nothing to disclose.
Sanjeev V. Kothare, MD, FAAN (Cohen Children's Hospital, Northwell Health)	Dr. Kothare has nothing to disclose.

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