Brain functional organization and structure in patients with arteriovenous malformations

Rousseau, Paul Noel; Piana, Roberta La; Chai, Xiaoqian J.; Chen, Jen Kai; Klein, Denise; Tampieri, Donatella

doi:10.1007/s00234-019-02245-6

Cited by 9 publications

(6 citation statements)

References 34 publications

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“…However, unlike extensive studies of stroke, studies regarding language reorganization in patients with brain AVMs are limited. Previous studies have shown that atypical language dominance is not rare in AVM patients (Deng et al, 2015;Rousseau et al, 2019). For example, Lee, Pouratian, Bookheimer, and Martin (2010) reported 15 righthanded patients with an AVM nidus involving language areas; 5 of the patients (30%) presented with right dominance.…”

Section: Introductionmentioning

confidence: 97%

“…Unlike brain tumors or strokes, language dysfunction is an uncommon manifestation for unruptured brain AVMs involving language areas (Breitenstein et al, 2017 ; C. J. Chen et al, 2020 ; Duffau, 2021 ; Hartwigsen & Saur, 2019 ; Mohr, Koennecke, & Hartmann, 2020 ; Stockert et al, 2020 ). This phenomenon might be explained by language cortex reorganization caused by the AVM nidus, considering its congenital nature (Deng et al, 2015 ; Rousseau et al, 2019 ). However, it is still uncertain which brain areas are included in the reorganized language network.…”

Section: Introductionmentioning

confidence: 99%

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Right‐hemispheric language reorganization in patients with brain arteriovenous malformations: A functional magnetic resonance imaging study

Deng

Wang

Zong

et al. 2021

Human Brain Mapping

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Brain arteriovenous malformation (AVM), a presumed congenital lesion, may involve traditional language areas but usually does not lead to language dysfunction unless it ruptures. The objective of this research was to study right-hemispheric language reorganization patterns in patients with brain AVMs using functional magnetic resonance imaging (fMRI). We prospectively enrolled 30 AVM patients with lesions involving language areas and 32 age-and sex-matched healthy controls. Each subject underwent fMRI during three language tasks: visual synonym judgment, oral word reading, and auditory sentence comprehension. The activation differences between the AVM and control groups were investigated by voxelwise analysis. Lateralization indices (LIs) for the frontal lobe, temporal lobe, and cerebellum were compared between the two groups, respectively. Results suggested that the language functions of AVM patients and controls were all normal. Voxelwise analysis showed no significantly different activations between the two groups in visual synonym judgment and oral word reading tasks. In auditory sentence comprehension task, AVM patients had significantly more activations in the right precentral gyrus (BA 6) and right cerebellar lobule VI (AAL 9042). According to the LI results, the frontal lobe in oral word reading task and the temporal lobe in auditory sentence comprehension task were significantly more right-lateralized in the AVM group. These findings suggest that for patients with AVMs involving language cortex, different language reorganization patterns may develop for different language functions. The recruitment of brain areas in the right cerebral and cerebellar hemispheres may play a compensatory role in the reorganized language network of AVM patients.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Right‐hemispheric language reorganization in patients with brain arteriovenous malformations: A functional magnetic resonance imaging study

Deng

Wang

Zong

et al. 2021

Human Brain Mapping

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“…In resting-state BOLD-fMRI, patients are required to be awake with their eyes closed (or look directly at the cross target) lying quietly when performing the scan. Images are being used in the study of the brain network ( 33 ).…”

Section: Resultsmentioning

confidence: 99%

Chinese Cerebrovascular Neurosurgery Society and Chinese Interventional & Hybrid Operation Society, of Chinese Stroke Association Clinical Practice Guidelines for Management of Brain Arteriovenous Malformations in Eloquent Areas

et al. 2021

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Aim: The aim of this guideline is to present current and comprehensive recommendations for the management of brain arteriovenous malformations (bAVMs) located in eloquent areas.Methods: An extended literature search on MEDLINE was performed between Jan 1970 and May 2020. Eloquence-related literature was further screened and interpreted in different subcategories of this guideline. The writing group discussed narrative text and recommendations through group meetings and online video conferences. Recommendations followed the Applying Classification of Recommendations and Level of Evidence proposed by the American Heart Association/American Stroke Association. Prerelease review of the draft guideline was performed by four expert peer reviewers and by the members of Chinese Stroke Association.Results: In total, 809 out of 2,493 publications were identified to be related to eloquent structure or neurological functions of bAVMs. Three-hundred and forty-one publications were comprehensively interpreted and cited by this guideline. Evidence-based guidelines were presented for the clinical evaluation and treatment of bAVMs with eloquence involved. Topics focused on neuroanatomy of activated eloquent structure, functional neuroimaging, neurological assessment, indication, and recommendations of different therapeutic managements. Fifty-nine recommendations were summarized, including 20 in Class I, 30 in Class IIa, 9 in Class IIb, and 2 in Class III.Conclusions: The management of eloquent bAVMs remains challenging. With the evolutionary understanding of eloquent areas, the guideline highlights the assessment of eloquent bAVMs, and a strategy for decision-making in the management of eloquent bAVMs.

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“…8 Dysfunctions were found in the medial temporal lobe system and hippocampal area, which are involved in processes governing explicit memory for experiences. 8 Rousseau et al 9 reported a more general disruption of brain functional organization in patients affected by arteriovenous malformations which extended beyond the lesioned areas, supporting the hypothesis that arteriovenous malformations affect the whole brain rather than a localized region.…”

mentioning

confidence: 86%

Editorial for “Alterations in Resting‐State Functional MRI Connectivity Related to Cognitive Changes in Intracranial Dural Arteriovenous Fistulas Before and After Embolization Treatment”

Bertolino

Procissi

2021

Magnetic Resonance Imaging

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Brain functional organization and structure in patients with arteriovenous malformations

Cited by 9 publications

References 34 publications

Right‐hemispheric language reorganization in patients with brain arteriovenous malformations: A functional magnetic resonance imaging study

Right‐hemispheric language reorganization in patients with brain arteriovenous malformations: A functional magnetic resonance imaging study

Chinese Cerebrovascular Neurosurgery Society and Chinese Interventional & Hybrid Operation Society, of Chinese Stroke Association Clinical Practice Guidelines for Management of Brain Arteriovenous Malformations in Eloquent Areas

Editorial for “Alterations in Resting‐State Functional MRI Connectivity Related to Cognitive Changes in Intracranial Dural Arteriovenous Fistulas Before and After Embolization Treatment”

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