Seizures arise from functionally important brain areas or. Grid Monitoring (Electrocorticography, ECoG)Īetna considers grid monitoring to determine the location of the epileptogenic focus for possible surgical resection medically necessary for members with intractable seizures when any of the following conditions is met:. In addition, this use of intraoperative EEG is considered experimental and investigational. Note: The use of intraoperative EEG to monitor brain function for anesthetic drug administration in order to determine depth of anesthesia is considered integral to the anesthesia and not separately reimbursed. Monitoring cerebral function during parietal tumor resection or resection of lesion near the eloquent cortex.Īetna considers intraoperative EEG experimental and investigational for open-heart surgery and for all other indications (e.g., prediction of post-operative delirium) because its clinical value has not been established. Monitoring cerebral function during intracranial vascular surgical procedures or. Monitoring cerebral function during carotid artery surgery or. 
Intraoperative Electroencephalography (EEG)Īetna considers intraoperative scalp EEG medically necessary for the following indications:.
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