Clinical features and significance of negative motor response in intraoperative language mapping during awake craniotomy

Ken Ichi Nagamatsu, Toshihiro Kumabe, Kyoko Suzuki, Nobukazu Nakasato, Kiyotaka Sato, Osamu Iizuka, Masayuki Kanamori, Yukihiko Sonoda, Teiji Tominaga

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The negative motor area and anterior and posterior language areas were localized by intraoperative electrical cortical stimulation under the awake condition to evaluate the clinical significance of these areas. Thirty-seven awake craniotomies with language mapping were performed in 36 patients with brain tumors. The negative motor area was determined in 17 cases, and the anterior and posterior language areas were found in 12 and 6 cases, respectively. The negative motor area was located in the precentrat gyrus inferior to the orofacial motor area in 16 cases, and in the inferior frontal gyrus anterior to the orofacial motor area in one case. Both the negative motor area and the anterior language area were determined in 8 cases. Anterior language areas in these 8 cases were located anterior and/or inferior to the negative motor areas. The negative motor area is an easily determined, important landmark for intraoperative language mapping.

Original languageEnglish
Pages (from-to)693-700
Number of pages8
JournalNeurological Surgery
Volume36
Issue number8
Publication statusPublished - 2008 Aug

Keywords

  • Awake craniotomy
  • Intraoperative functional brain mapping
  • Language area
  • Negative motor response

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

Fingerprint Dive into the research topics of 'Clinical features and significance of negative motor response in intraoperative language mapping during awake craniotomy'. Together they form a unique fingerprint.

Cite this