ムラガキ ヨシヒロ   MURAGAKI Yoshihiro
  村垣 善浩
   所属   研究施設 研究施設
   職種   教授
論文種別 症例報告
言語種別 英語
査読の有無 査読あり
表題 Primary Cognitive Factors Impaired after Glioma Surgery and Associated Brain Regions.
掲載誌名 正式名:Behavioural neurology
略  称:Behav Neurol
ISSNコード:18758584/09534180
掲載区分国外
巻・号・頁 2020,7941689頁
著者・共著者 NIKI Chiharu†, KUMADA Takatsune, MARUYAMA Takashi, TAMURA Manabu, KAWAMATA Takakazu, MURAGAKI Yoshihiro
発行年月 2020/03/25
概要 Previous studies have shown that cognitive impairments in patients with brain tumors are not severe. However, to preserve the postsurgical QOL of patients with brain tumors, it is important to identify "primary" cognitive functions and associated brain regions that are more vulnerable to cognitive impairments following surgery. The objective of this study was to investigate primary cognitive factors affecting not only simple cognitive tasks but also several other cognitive tasks and associated brain regions. Patients with glioma in the left (n = 33) and the right (n = 21) hemisphere participated in the study. Seven neuropsychological tasks from five cognitive domains were conducted pre- and 6 months postoperation. Factor analyses were conducted to identify "primary" common cognitive functions affecting the task performance in left and right glioma groups. Next, lesion analyses were performed using voxel-based lesion-symptom mapping (VLSM) to identify critical brain regions related to impairments of the primary cognitive functions. Factor analysis revealed two primary cognitive components in each glioma group. The first cognitive component in the left glioma group affected the digit span forward and backward tasks and concept shifting and the letter-digit substitution tasks. VLSM analysis revealed significant regions from the posterior middle temporal gyri to the supramarginal gyrus. The second cognitive component affected verbal memory, and verbal fluency tasks and VLSM analysis indicated two different significant regions, the medial temporal regions and the middle temporal gyrus to the posterior parietal lobes. The first cognitive component in the right glioma group affected positive and negative factor loadings on the task, such that the positive cognitive component affected only the Stroop color-word task. VLSM related to deficits of the Stroop task revealed significant regions in the anterior medial frontal cortex. On the other hand, the negative component affec
DOI 10.1155/2020/7941689
PMID 32300377