Publications by authors named "Tomokazu Nakagawa"

A 30-year-old man who received infliximab for treatment of Crohn's disease developed Epstein-Barr virus (EBV) encephalitis, which responded well to therapy; however, he had left lower visual field loss following treatment. The patient noticed peculiar symptoms 9 months after recovery from encephalitis; objects in his view appeared smaller or larger than their actual size (micropsia/macropsia). Moreover, it appeared that objects outside moved faster or slower than their actual speed of movements and moving objects appeared as a series of many consecutive snap shots.

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We herein report a 49-year-old man with a fever, diagnosed with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. After two weeks of hospitalization, he suddenly mentioned visual field impairment. Computed tomography and magnetic resonance imaging revealed white matter damage and vasogenic edema.

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We report a case of human immunodeficiency virus (HIV) infection that showed subacute progressive cerebellar ataxia without HIV encephalopathy or other encephalopathies, including progressive multifocal leukoencephalopathy or encephalitis of other human herpes virus (HHV) infections. A 43-year-old man exhibited unsteady gait. Neurological examination disclosed ataxia of the trunk and lower extremities.

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Objectives: To identify the specific change of white matter integrity that occurs in the brain network related to epileptic activity in patients with mesial temporal lobe epilepsy (MTLE).

Methods: We recruited 18 patients with MTLE and 18 healthy subjects. In MTLE patients, the remote functional-deficit zone was delineated using fluorodeoxyglucose positron emission tomography as an extratemporal region showing glucose hypometabolism.

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We recently reported clinical anticipation in Japanese families with benign adult familial myoclonus epilepsy (BAFME). However, it remains unknown whether clinical anticipation is predominantly associated with paternal or maternal transmission. We investigated the relationship between gender of the transmitting parent and clinical anticipation in nine BAFME families.

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Objective: Decreased early Bereitschaftspotential (BP) is one of the electrophysiological characteristics in patients with Parkinson's disease (PD). We examined whether PD patients could increase BP amplitude by means of neuro-feedback (NFB) training for their slow cortical potentials (SCPs).

Methods: We worked with 10 PD patients and 11 age-matched controls.

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A 69-year-old Japanese female was admitted because of progressive nasal voice and dysphagia. Neurological examination revealed paresis of the soft palate with marked dysphagia and rhinolalia. Otherwise there was no weakness or easy fatigability in extraocular muscles and extremities.

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A 61-year-old Japanese female was admitted with sudden onset of choreic movements of the right extremities. MRI demonstrated no abnormality suggestive of acute infarcts. Cerebral angiography revealed high-grade stenosis of bilateral middle cerebral arteries at the origin and abnormal vascular network compatible with moyamoya disease.

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Objective: To clarify the clinical features and mechanism of the transience of myoclonus in patients with a transient myoclonic state with asterixis (TMA).

Methods: We investigated the clinical and eletrophysiological profiles of 6 patients with TMA (age: 84±3 years). During an asymptomatic period, somatosensory evoked potentials (SEPs) were recorded in all 6 patients and motor evoked potentials (MEPs) were examined in 1 patient.

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Recent neuroimaging studies proposed the importance of the anterior auditory pathway for speech comprehension. Its clinical significance is implicated by semantic dementia or pure word deafness. Neurodegenerative or cerebrovascular nature, however, precluded precise localization of the cortex responsible for speech perception.

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