Publications by authors named "Shigeru Nogawa"

Background: We developed a novel method to measure the angle of subjective postural vertical (SPV) and showed that the SPV may be related to the exacerbation of the forward flexed posture.

Objectives: The present study prospectively tested the effects of the subjective postural vertical on the exacerbation of the forward flexion of trunk (FFT) through long-term observation of Parkinson's disease patients.

Methods: Evaluation of the posture included measuring FFT, the angle of lateral flexion of trunk, and the angle at the position that the patient subjectively perceived as the vertical position at a stationary upright position immediately after standing up at the time of initial observation, 6 months later, and 1 year later.

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Article Synopsis
  • The study examines non-motor symptoms (NMS) in Parkinson's disease (PD) patients, focusing on factors like age, disease duration, and sex.
  • A total of 431 PD patients were evaluated, revealing that older adults and those in advanced disease stages experienced more severe cognitive and sleep-related symptoms; females reported more anxiety while males experienced more daytime sleepiness.
  • The findings suggest that NMS severity in PD is influenced by the length of illness, age, and gender, highlighting the need for tailored approaches in patient management.
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Article Synopsis
  • The study investigates the impact of unknown onset stroke (UOS) on clinical outcomes and characteristics, finding it associated with older age and certain health conditions like atrial fibrillation.
  • A total of 26,976 patients were analyzed, showing that UOS patients had higher NIHSS scores and worse outcomes upon discharge compared to known onset stroke (KOS) patients.
  • The results indicate that while UOS leads to more unfavorable outcomes, the effects are less severe in females and those who underwent reperfusion therapy.
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Background: Rapid eye movement sleep behavior disorder (RBD) and olfactory dysfunction are useful for early diagnosis of Parkinson's disease (PD). RBD and severe olfactory dysfunction are also regarded as risk factors for cognitive impairment in PD. This study aimed to assess the associations between RBD, olfactory function, and clinical symptoms in patients with PD.

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Background: Some reports suggest the efficacy of mechanical thrombectomy (MT) for acute vertebrobasilar artery (VBA) occlusion. The major causes of VBA occlusion include cardioembolism (CE) and large-artery atherosclerosis (LAA). However, the clinical characteristics of each cause remain unclear, and they might be important for decision making related to the indications and strategy of MT.

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Objective: Coronavirus disease 2019 (COVID-19) is characterized by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and presents with respiratory symptoms. Overall, 5.7% of COVID-19 patients with severe respiratory status have been reported to develop acute cerebrovascular diseases (CVDs), and 41.

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Cognitive function is often impaired in early Parkinson's disease (PD). The Wisconsin Card Sorting Test (WCST) is a neuropsychological test of "set-shifting" ability. To see whether WCST is useful for detecting early changes of cognitive function in PD, we examined the correlations of WCST with the Montreal Cognitive Assessment (MoCA) and the Odor Stick Identification Test (OSIT).

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Background: Nonvitamin K antagonist oral anticoagulants (NOACs) are considered superior, or at least noninferior, to warfarin in preventing stroke or systemic embolism in patients with nonvalvular atrial fibrillation. Here, we recruited acute ischemic stroke patients with nonvalvular atrial fibrillation and at least one cerebral microbleed (CMB), and evaluated the proportion of patients who had an increased number of CMBs (%) after receiving anticoagulant therapy with NOACs or with warfarin for 12 months.

Methods: This was a multicenter, prospective, observational cohort study at 20 centers, conducted between 2015 and 2017, in which we recruited 85 patients with at least one CMB detected by 1.

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Background: Postural abnormalities in Parkinson's disease (PD) patients and unimpaired elderly are not well differentiated. Factors related to postural abnormality associated with PD are controversial.

Objective: We assessed differences in postural change between PD patients and unimpaired elderly and elucidated factors related to abnormal posture in PD patients.

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Objective: We examined the relationship between hemifacial spasm (HFS; a form of cranio-cervical dystonia) and chronic primary headache, including tension-type headache (TTH). We also examined whether botulinum toxin A (BoNT/A) therapy for HFS ameliorates concomitant TTH.

Methods: Fifty-one HFS patients receiving BoNT/A therapy were recruited.

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Objective: Cerebral white matter lesions (WMLs) have been frequently observed on MRI in patients with migraine. We investigated characteristics of WMLs in migraine and tried to determine the relationship between its causal mechanism and arteriosclerosis.

Methods: A head MRI was performed in juvenile migraine patients.

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A 72-year-old male with heart failure was admitted to our hospital. Treatment with dabigatran (220 mg per day) was initiated because of atrial fibrillation. On the third day, the patient developed left-sided hemiparesis and dysarthria at 4.

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Objective: This multicenter cross-sectional study aimed to investigate the clinical features and varieties of non-motor fluctuation in Parkinson's disease (PD).

Methods: To identify motor and non-motor fluctuation, we employed the wearing-off questionnaire of 19 symptoms (WOQ-19) in 464 PD patients. We compared the frequency of levodopa-related fluctuation as identified by the WOQ-19 with recognition by neurologists.

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Objective: The aim of this multicenter cross-sectional study was to assess the relation between fatigue in a large number of Japanese patients with Parkinson's disease (PD) and drugs taken to treat PD.

Method: We used the 16-item Parkinson Fatigue Scale (PFS-16), which was designed to assess fatigue exclusively associated with PD. Multiple logistic regression analyses were used to assess the relation between antiparkinson drugs and fatigue in PD.

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Background: Patients with Parkinson's disease (PD) suffer from various symptoms. In order to identify untreated symptoms within the limited time of a clinical interview, we developed a new self-completing questionnaire (MASAC-PD 31). The questionnaire consists of two parts (5 domains, 31 items); Part I intended at rating the motor symptoms and activities of daily living (ADL) during both "on" and "off" periods, and Part II aimed at screening and assessing mainly the non-motor symptoms, such as sleep-related difficulties, autonomic symptoms, cognition, mood and others.

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The objective of this multicenter cross-sectional study was to determine the prevalence of fatigue and factors contributing to it in a large sample of Japanese patients with Parkinson's disease (PD). We used the 16-item Parkinson Fatigue Scale (PFS-16), which was designed to assess fatigue exclusively associated with PD. We carried out this study using PFS-16, the Unified Parkinson's Disease Rating Scale, Zung's Self-Rating Depression Scale, Parkinson's Disease Sleep Scale (PDSS), and the PD quality of life (QOL) scale (PDQ-39) by interview using questionnaires and physical examination by neurologists in 361 nondemented PD patients.

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A 34-year-old woman with hyperthyroidism, who had been previously treated with propylthiouracil (PTU) is reported. She was admitted because of clumsiness in her left hand and abnormal behavior. A neurological examination demonstrated impairment of higher cortical function, and weakness and hyperreflexia of the left leg.

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A 45 year-old Japanese woman developed numbness and tingling of both hands and feet. Electrophysiological examination revealed sensorimotor polyneuropathy. She was diagnosed as suffering from sarcoidosis on the basis of the pathological findings from dermal biopsy.

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Moyamoya disease is a cerebrovascular disorder characterized by bilateral stenosis or occlusion of the terminal portions of the internal carotid arteries accompanied by typical net-like collateral vessels in the basal ganglia. Although the etiology of moyamoya disease remains unknown, hereditary and immunogenic as well as hemodynamic factors have been implicated in the underlying mechanism of moyamoya disease. We report two patients with confirmed moyamoya disease and a patient with probable moyamoya disease complicated with Graves' disease.

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Good syndrome, characterized by both thymoma and hypogammaglobulinemia, is a rare immunodeficient disorder. We experienced a case of Good syndrome accompanied by myasthenia gravis (MG). A 58-year-old man was admitted to our hospital because of muscle weakness and fatigability.

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Objective: The aim of this study was to analyze the clinical and laboratory features of each subtype of multiple sclerosis (MS) (relapsing-remitting, primary progressive, and secondary progressive) in the Tokyo metropolitan area.

Methods And Patients: We retrospectively analyzed the medical records of 104 consecutive patients with a diagnosis of MS, who had been admitted to our university hospital from 1988 to 2002. They all met criteria for definite MS, by clinical or laboratory standards.

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The patient is a 62-year-old man who was diagnosed with myasthenia gravis and invasive thymoma at the age of 45 years, and had received treatment by extended thymectomy and radiotherapy. At the age of 61, he had suffered from a myasthenic crisis, and been administered immunoadsorption therapy under managed ventilatory care. Treatment had then been continued with steroids; however, due to subsequent deterioration of his diabetic state, treatment was switched to the immunosuppressant drug tacrolimus.

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