Intraoperative rCBF in epileptic foci of 5 patients with medically refractory post-traumatic epilepsy using laser doppler blood perfusion monitor.

Hirotsune Kawamuara, Keiichi Amano, Tatsuya Tanikawa, Hiroko Kawabatake, Hiroshi Iseki, Takaomi Taira, Yukiya Iwata, Yoshihiro Umezawa, Tsunemasa Shimizu, Koji Arai, Toshihiko Shimizu, Takashi Higa

    Research output: Contribution to journalArticle

    Abstract

    Regional blood flow in epileptic focus was measured intraoperatively by laser blood perfusion monitor in 5 patients with medically refractory post-traumatic epilepsy. In order to determine the precise localization of epileptic foci, electro-corticogram was recorded using a newly devised multi-electrodes which can be easily fixed to surface the brain cortex only by surface tension of physical saline dripped on the electrodes and the cortical surface. The regional blood flow in the epiletic focus ranged 40 to 58ml/100ml/min, mean value was 52.2ml/100ml/min. that decreasd up to 30% as compared with the mean value of 76.4ml/100ml/min in the normal brain cortex. These amount of blood flow, however, were not related to the epileptic activities on the electocorticogram. Whereas, the blood flow showed 38.8ml/100ml/min in the gliotic area without any spike activity. These findings could support the fact that interictal measurements by single photon emission computed tomography (SPECT) in patients with focal epilepsies demonstrated a regional hypoperfusion in 50-75% of patients.

    Original languageEnglish
    Pages (from-to)54-61
    Number of pages8
    JournalJournal of the Japan Epilepsy Society
    Volume10
    Issue number1
    DOIs
    Publication statusPublished - 1992 Jan 1

      Fingerprint

    Keywords

    • epileptic focus
    • laser doppler perfusion monitor
    • post-traumatic epilepsy
    • regional blood flow

    ASJC Scopus subject areas

    • Neurology
    • Clinical Neurology

    Cite this

    Kawamuara, H., Amano, K., Tanikawa, T., Kawabatake, H., Iseki, H., Taira, T., Iwata, Y., Umezawa, Y., Shimizu, T., Arai, K., Shimizu, T., & Higa, T. (1992). Intraoperative rCBF in epileptic foci of 5 patients with medically refractory post-traumatic epilepsy using laser doppler blood perfusion monitor. Journal of the Japan Epilepsy Society, 10(1), 54-61. https://doi.org/10.3805/jjes.10.54