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

doi:10.3805/jjes.10.54

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 journal › Article › peer-review

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 language	English
Pages (from-to)	54-61
Number of pages	8
Journal	Journal of the Japan Epilepsy Society
Volume	10
Issue number	1
DOIs	https://doi.org/10.3805/jjes.10.54
Publication status	Published - 1992

Keywords

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

ASJC Scopus subject areas

Neurology
Clinical Neurology

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10.3805/jjes.10.54

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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

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, vol. 10, no. 1, pp. 54-61. https://doi.org/10.3805/jjes.10.54

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

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.",

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AU - Kawabatake, Hiroko

AU - Iseki, Hiroshi

AU - Taira, Takaomi

AU - Iwata, Yukiya

AU - Umezawa, Yoshihiro

AU - Shimizu, Tsunemasa

AU - Arai, Koji

AU - Shimizu, Toshihiko

AU - Higa, Takashi

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

Abstract

Keywords

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