Brief about D wave . D wave is present but motor evoked potentials (MEPs) show a drop in the context of an intramedullary spine tumor. Interpreting the Scenario. conclusion. Management . In this situation, it is important for the healthcare team to monitor the patient closely and consider appropriate management options. Treatment of intramedullary spine … Continue reading When a D wave is present but motor evoked potentials (MEPs) show a drop in the context of an intramedullary spine tumor.