1. Network-behavior mapping of lasting executive impairments after low-grade glioma surgery
- Author
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Hugues Duffau, Guillaume Herbet, Anne-Laure Lemaitre, Jérôme Cochereau, Sylvie Moritz-Gasser, Michel Wager, Centre hospitalier universitaire de Poitiers (CHU Poitiers), Neurochirurgie [Hôpital Gui de Chauliac], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier], Institut de Génomique Fonctionnelle (IGF), and Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Male ,Neurology ,[SDV]Life Sciences [q-bio] ,Neuropsychological Tests ,Superior longitudinal fasciculus ,Executive functions ,Fronto-striatal tracts ,Executive Function ,0302 clinical medicine ,Medicine ,Postoperative Period ,Brain Neoplasms ,General Neuroscience ,05 social sciences ,Cognitive flexibility ,Neuropsychology ,Brain ,Glioma ,Middle Aged ,Magnetic Resonance Imaging ,White Matter ,medicine.anatomical_structure ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,Female ,Anatomy ,Adult ,medicine.medical_specialty ,Histology ,Adolescent ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,Neuroimaging ,Context (language use) ,050105 experimental psychology ,White matter tracts ,White matter ,Young Adult ,03 medical and health sciences ,Fluency ,Structural disconnections ,Connectome ,Humans ,0501 psychology and cognitive sciences ,Aged ,business.industry ,Surgery ,Frontal aslant tract ,Diffuse low-grade glioma ,Nerve Net ,business ,030217 neurology & neurosurgery - Abstract
International audience; Executive functions (EF) may be significantly impaired following low-grade glioma (LGG) surgery, especially in the event of white matter (WM) disruption. The aim of this study was to identify the connective tracts associated with EF impairments after LGG surgery, and to provide new insights into the WM network architecture of EF. EF measurements were collected in 270 patients at the chronic postoperative phase. This comprised cognitive flexibility, verbal inhibition and fluency abilities (phonological and categorical). The scores were z-corrected for age and educational level, and further submitted to a principal component analysis (PCA). Tracwise and disconnectome-behavior analyses were then performed using EF measures independently but also the extracted components from PCA. For the first analyses, 15 tracts of interest were selected. Two principal components were extracted from the behavioral data, interpreted as 'EF' and 'language' components. Robust, bonferroni-corrected correlations were established between the EF component and Layers II and III of the left superior longitudinal fasciculus, and between phonological fluency/inhibition and the same tracts. Less powerful but still significant correlations were also observed with the left frontal aslant and fronto-striatal tracts. These results were confirmed by disconnectome-behavior analyses. Our results indicate that surgically-related disruption of the fronto-parietal and the frontal cortico-subcortical connectivity, and of the frontal aslant tract, is related to long-lasting EF impairments. In addition to providing new insights into the WM pathways supporting EF, these findings are especially useful for both surgical planning and the predictive approach of neuropsychological disorders in the context of LGG surgery.
- Published
- 2020