Pure Dysarthria Resulting from a Small Cortical Infarction Located at the Left Middle Frontal Gyrus

Uzawa, Akiyuki; Hiraga, Akiyuki; Kamitsukasa, Ikuo

doi:10.2169/internalmedicine.48.1540

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Pure dysarthria as a result of an isolated stroke to the middle frontal gyrus has been reported. 43 A recent surgical study showed that of 151 patients who had electrocortical stimulation testing in the portion of the DLFPC just superior to Broca area showed anomia in anywhere between 3.6% and 10.8% of patients stimulated depending on the location within the middle frontal gyrus and region of the inferior frontal sulcus. 44 However, the same study also shows 10 regions within the middle frontal gyrus where 100% of patients stimulated did not show interruptions of speech.…”

Section: Frontal Language Mappingmentioning

confidence: 99%

Language Mapping Using fMRI and Direct Cortical Stimulation for Brain Tumor Surgery

Brennan

Peck

Holodny

2016

Topics in Magnetic Resonance Imaging

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Language functional magnetic resonance imaging for neurosurgical planning is a useful but nuanced technique. Consideration of primary and secondary language anatomy, task selection, and data analysis choices all impact interpretation. In the following chapter, we consider practical considerations and nuances alike for language functional magnetic resonance imaging in the support of and comparison with the neurosurgical gold standard, direct cortical stimulation. Pitfalls and limitations are discussed.

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Section: Frontal Language Mappingmentioning

confidence: 99%

Language Mapping Using fMRI and Direct Cortical Stimulation for Brain Tumor Surgery

Brennan

Peck

Holodny

2016

Topics in Magnetic Resonance Imaging

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“…The left middle frontal gyrus region (BA 6) of the brain has traditionally been associated with roles in planning and coordination of motor movements, but recent studies have also shown that its dysfunction can result in dysarthria or dysgraphia. [39][40][41] Disconnection between the left middle frontal gyrus visual processing centers such as the lingual gyrus and cuneus can presumably result in difficulties with processing or production of written language. Indeed, in a study comparing neurocognitive function between right and left sided UCS patients, left sided patients performed significantly worse in spelling.…”

Section: Discussionmentioning

confidence: 99%

“…The right primary visual cortex exhibited decreased connectivity to the bilateral superior parietal lobules and adjacent posterior brain structures as well. The left middle frontal gyrus region (BA 6) of the brain has traditionally been associated with roles in planning and coordination of motor movements, but recent studies have also shown that its dysfunction can result in dysarthria or dysgraphia 39–41 . Disconnection between the left middle frontal gyrus visual processing centers such as the lingual gyrus and cuneus can presumably result in difficulties with processing or production of written language.…”

Section: Discussionmentioning

confidence: 99%

Neurological Functional Connectivity in Unilateral Coronal Synostosis: A Side-Based Comparison

Park

Singh

Lacadie

et al. 2020

Journal of Craniofacial Surgery

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Purpose: Unicoronal synostosis (UCS) has been associated with reading, language, and social dysfunction. Limited brain function connectivity studies exist for UCS with none devoted to comparing outcomes by side of synostosis (left versus right-sided UCS). Methods: Twelve patients with surgically treated UCS, 7 rightsided and 5 left-sided, were age matched to healthy controls. Resting state functional MRI was acquired in a 3T Siemens TIM Trio scanner (Erlangen, Germany). Data was collected with intrinsic connectivity distribution and seed-connectivity analysis using BioImage Suite (Yale School of Medicine). Region of interest analysis was performed based on Brodmann areas related to emotional, executive, language, motor, and visuo-spatial function. Significance was set at P < 0.05. Results: Compared to controls, all UCS patients demonstrated decreased connectivity in areas of the parietal and temporal cortices responsible for visuo-motor coordination and language function. Right UCS patients demonstrated decreased intrinsic connectivity in regions related to complex motor movement and proprioception relative to control subjects. Left UCS patients demonstrated decreased seed connectivity between regions of the parietal lobe and occipital lobe related to motor coordination, visual function, and language compared to right UCS patients. Conclusion: Unicoronal synostosis had decreased functional connectivity in regions associated with memory, visual information processing, and motor function. Moreover, left-sided UCS had decreased connectivity in circuits for motor coordination and language when compared to right-sided UCS. This study provides data suggestive of long-term sequelae of UCS that varies by sidedness, which may be responsible for neurocognitive impairments found in previous cognitive analyses.

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Disartria y mareo persistente con estudio neurológico previo: hasta dónde seguir investigando

Domínguez¹,

Rodríguez²,

Vega

et al. 2013

Neurología

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Pure Dysarthria Resulting from a Small Cortical Infarction Located at the Left Middle Frontal Gyrus

Abstract: Pure dysarthria caused by a small cortical infarction is rare. Recent

Cited by 6 publications

References 8 publications

Language Mapping Using fMRI and Direct Cortical Stimulation for Brain Tumor Surgery

Language Mapping Using fMRI and Direct Cortical Stimulation for Brain Tumor Surgery

Neurological Functional Connectivity in Unilateral Coronal Synostosis: A Side-Based Comparison

Disartria y mareo persistente con estudio neurológico previo: hasta dónde seguir investigando

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