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Effect of sevoflurane on electrocorticogram in normal brain
Kiyotaka Sato1, Hiroshi Shamoto, Masato Kato
1Department of Neuroanesthesia, Kohnan Hospital, Sendai, Japan.
Journal of Neurosurgical Anesthesiology
|January 5, 2002
Summary
Sevoflurane anesthesia may trigger seizure activity, as indicated by electrocorticography spike patterns in all patients undergoing brain aneurysm surgery. Further research is needed to confirm its safety for neurosurgical procedures.
Area of Science:
- Anesthesiology
- Neuroscience
- Neurosurgery
Background:
- Sevoflurane is a widely used inhalation anesthetic.
- Its potential to induce epileptiform activity requires careful evaluation, especially in neurosurgical patients.
Purpose of the Study:
- To investigate the epileptogenic potential of sevoflurane during anesthesia.
- To assess the occurrence of spike activities on electrocorticography during sevoflurane administration.
Main Methods:
- Electrocorticograms were recorded in seven patients with unruptured cerebral aneurysms.
- Patients received sevoflurane anesthesia, and electrocorticography monitored brain activity.
Main Results:
- Spike activities, indicative of potential epileptogenicity, were observed in all seven patients.
- These activities were noted at an end-tidal sevoflurane concentration of 3.3%.
Conclusions:
- The findings suggest sevoflurane may possess epileptogenic properties.
- Further investigation is warranted to determine the suitability of sevoflurane for neurosurgical procedures.