What is the main purpose of monitoring raw data during IONM when EP waveforms are disrupted?

The main purpose of monitoring raw data during Intraoperative Neurophysiological Monitoring (IONM) when Evoked Potential (EP) waveforms are disrupted is to observe real-time fluctuations without averaging. By analyzing raw data, clinicians can detect subtle changes and fluctuations in the signals that may indicate an impending change in neural integrity. This ability is crucial during surgery, as it provides immediate feedback about the patient's neurological status and allows for timely intervention if necessary.

In situations where EP waveforms are disrupted, relying solely on processed or averaged data could mask important changes in the neural signals, potentially leading to missed alerts about compromised neurological function. Monitoring raw data provides a more accurate representation of the signal as it is being collected, thus facilitating prompt decision-making and response by the intraoperative monitoring team.

This approach enhances the effectiveness of IONM by enabling the team to address issues as they arise, ensuring greater patient safety during surgical procedures.