Abstract
BackgroundContact dermatitis caused by electroencephalography electrodes is rare and insufficiently studied. We described a case of contact dermatitis caused by Bispectral Index (BIS) monitor electrodes.Case presentationA 38-year-old woman underwent tooth extraction under general anesthesia with BIS monitoring. She noticed erythema on her forehead 3 days after surgery, which peaked on the fifth postoperative day. Slight pigmentation was observed at 42 days after surgery. We performed patch testing and confirmed positive reactions to the sensor and some allergens.ConclusionsMany reports have attributed contact dermatitis to an allergen present in electrocardiogram electrodes. It is important to recognize that complications similar to those caused by electrocardiogram electrodes can occur with this sensor.
Highlights
Contact dermatitis caused by electroencephalography electrodes is rare and insufficiently studied
Contact dermatitis associated with anesthesia can be attributable to ECG electrodes [1,2,3,4,5,6,7,8,9], Prone PositionerTM [10], and contaminants on facemasks [11]; the incidence is low, and it often is impossible to sufficiently investigate the causes
We experienced a case of contact dermatitis caused by a Bispectral Index (BIS) sensor, and the results of our patch test identified the adhesive part of the sensor as the cause
Summary
Contact dermatitis caused by electroencephalography electrodes is rare and insufficiently studied. Because the BIS monitor is placed on the forehead, dermatitis, which can lead to pigmentation, can result in serious cosmetic implications for the patient. We experienced a case of contact dermatitis involving the BIS sensor and performed patch testing. This report describes the case and discusses the results of patch testing.
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