What is the consequence of changing the setting of the high-frequency filter during SSEP monitoring?

Changing the setting of the high-frequency filter during Somatosensory Evoked Potential (SSEP) monitoring can significantly impact the interpretation of the data collected. The high-frequency filter is instrumental in distinguishing between relevant neural signals and extraneous electrical noise. If the filter is set too high, important components of the evoked potential may be lost, leading to an underrepresentation of true signals. Conversely, if the filter is set too low, noise may contaminate the recordings, complicating the analysis.

This misinterpretation can lead to incorrect conclusions about neural function or injury, potentially affecting clinical decisions. Accurate settings of the high-frequency filter are thus essential to ensure that the clinician has a true representation of the patient’s neural status. Therefore, improper adjustments can result in misleading data that fosters erroneous interpretations regarding the integrity of the nervous system during surgical procedures.