Large-dose propofol alone in adult epileptic patients: Electrocorticographic results

Mary Ann Cheng, René Tempelhoff, Daniel L. Silbergeld, M. Angele Theard, Seline K. Haines, John W. Miller

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


The primary objective of this study was to evaluate the electrophysiologic effects of large-dose propofol, used as the sole anesthetic in patients with epilepsy. Nine patients with medically intractable complex partial epilepsy undergoing a three-stage approach to the surgical management of epilepsy were recruited, Stage I involved placement of the intracranial electrode array, while Stage II consisted of extraoperative localization of the seizure focus. The patients were studied during induction of anesthesia for Stage III (removal of electrodes and resection of seizure focus). Unpremedicated patients were induced with a propofol infusion (0.5 mg · kg-1 · min-1) until one of the following occurred: 1) electrical seizure activity, 2) burst suppression, or 3) total dose of 10 mg/kg. Electrocorticography (ECoG) was recorded continuously during this period. Two patients were excluded from the study after experiencing delayed awakening after the Stage I procedure. Both had received propofol along with other anesthetics. No ECoG evidence of seizure activity was detected in the seven patients completing the study. Burst suppression was attained in six patients using a mean dose of 5.7 mg/kg ± 2.6. We conclude that large-dose propofol alone does not trigger electrical epileptiform activity on the ECoG of seizure patients.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalAnesthesia and analgesia
Issue number1
StatePublished - Jul 16 1996


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