What is the effect of changing the HFF during a critical moment in SSEP monitoring?

Changing the high frequency filter (HFF) during a critical moment in somatosensory evoked potential (SSEP) monitoring can significantly affect the data interpretation, leading to the possibility of false interpretations. The HFF is utilized to remove high-frequency noise that can interfere with the clarity of the overall waveform. If the filter settings are altered mid-monitoring, it may inadvertently alter the appearance or significant features of the SSEP waveforms. This change can mask or distort critical information, potentially leading the clinician to make erroneous conclusions about neurological function. It is essential to maintain consistent filter settings throughout the monitoring process to ensure reliability and accuracy of the collected data. Therefore, any adjustment during these crucial times can compromise the integrity of the analysis and clinical outcomes.