The investigators want to know if using the study drug dexmedetomidine will improve nerve wave readings during neurosurgery. These readings are done many times during surgery while the patient is asleep. The readings look at how nerves are working and let the operating team know if nerves are hurt during surgery. If the readings tell that nerves are not working correctly, the surgeons can help while changing the way of operating. The study drug will be used in addition to the general anesthesia that a patient is given. The nerve readings that the investigators get while using the study drug will be compared with nerve readings that the investigators get while not using the study drug. The study hypothesis is that dexmedetomidine does not change nerve readings.
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Significant improvement of MEP and SSEP readings during neurosurgery for pediatric patients while using dexmedetomidine as an adjunct to general anesthesia and therefore improvement in clinical decision making.
Timeframe: 30 - 60 minutes of SSEP and MEP measurements intraoperatively