Regional cerebral blood flow changes associated with focal electrically administered seizure therapy (FEAST)

George Chahine, Baron Short, Ken Spicer, Matthew Schmidt, Carol Burns, Mia Atoui, Mark S. George, Harold A. Sackeim, Ziad Nahas

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Introduction Use of electroconvulsive therapy (ECT) is limited by cognitive disturbance. Focal electrically-administered seizure therapy (FEAST) is designed to initiate focal seizures in the prefrontal cortex. To date, no studies have documented the effects of FEAST on regional cerebral blood flow (rCBF). Methods A 72 year old depressed man underwent three single photon emission computed tomography (SPECT) scans to capture the onset and resolution of seizures triggered with right unilateral FEAST. We used Bioimage Suite for within-subject statistical analyses of perfusion differences ictally and post-ictally compared with the baseline scan. Results Early ictal increases in regional cerebral blood flow (rCBF) were limited to the right prefrontal cortex. Post-ictally, perfusion was reduced in bilateral frontal and occipital cortices and increased in left motor and precuneus cortex. Conclusion FEAST appears to triggers focal onsets of seizure activity in the right prefrontal cortex with subsequent generalization. Future studies are needed on a larger sample.

Original languageEnglish (US)
Pages (from-to)483-485
Number of pages3
JournalBrain Stimulation
Volume7
Issue number3
DOIs
StatePublished - 2014

Keywords

  • Brain stimulation
  • Depression
  • ECT
  • Electroconvulsive therapy
  • FEAST
  • Focally electrically administered seizure therapy
  • SPECT

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