What is the function of collodion in electrode application?

Collodion, a mixture of pyroxylin and ether, is used in electrode application primarily for its adhesive properties, which help secure the electrodes in place on the skin. By preventing movement, collodion ensures that the electrodes maintain consistent contact with the skin throughout the monitoring process, which is critical for obtaining accurate and reliable neurophysiological data during a procedure. If electrodes shift or move, it can lead to artifacts or poor signal quality, which can compromise the integrity of the monitoring.

While collodion does not function as a lubricant, an agent to increase conductivity, or a disinfectant, it's specifically its role in immobilizing the electrodes that enhances the overall quality of the neurophysiological data collected during intraoperative monitoring.