Sayori Hanashiro
Toho University
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Featured researches published by Sayori Hanashiro.
Internal Medicine | 2015
Sayori Hanashiro; Takanori Takazawa; Yuji Kawase; Ken Ikeda
Objective We examined the prevalence and clinical features of primary exercise headache (PEH) in middle-aged Japanese population. Methods A headache specialist interviewed middle-aged subjects serially on health check-up. The primary headaches were diagnosed according to the International Classification of Headache Disorders (ICHD-III beta). Cardiovascular disease (CVD) risk and radiological findings were analyzed. Prevalence of PEH and clinical features were assessed. Results Among 2,546 subjects (1,588 men and 958 women), thirty subjects (13 men and 17 women) were diagnosed with PEH. The prevalence of PEH was 1.19%, 0.82% in men and 1.77% in women. The mean age [standard deviation (SD)] of the subjects was 44.3 (8.8) years and their mean duration (SD) of PEH was 4.5 (7.0) months. Headache occurred bilaterally (23 patients) or unilaterally (7 patients), and in the occipital (16 patients), frontal (10 patients) or diffuse region (4 patients). The persistent headache time ranged from 5 minutes to 12 hours. The degree of headache severity was classified as mild (13 patients), moderate (5 patients) or severe degree (12 patients). PEH was triggered by gym training (16 patients), swimming (6 patients), running (6 patient) and skiing (2 patients). All patients were exercise beginners or played a sport occasionally. No patients visited physicians for headache consultation. Other primary headaches coexisted in 20 patients (67%). Twenty patients had migraine without aura (MO). Seven patients had headache associated with sexual activity. Five patients had cough headache. Two patients had CVD risk factors. Conclusion The present study of PEH indicated the prevalence of 1.2% and the female/male ratio of 2.1 in middle-aged Japanese. The comorbidity rate of MO was high. PEH may not be an uncommon headache in middle-aged MO sufferers and sport beginners.
BMC Neurology | 2016
Masaru Yanagihashi; Osamu Kano; Tomoya Terashima; Yuji Kawase; Sayori Hanashiro; Masahiro Sawada; Yuichi Ishikawa; Nobuyuki Shiraga; Ken Ikeda; Yasuo Iwasaki
BackgroundCerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive sterol storage disease caused by a mutated sterol 27-hydroxylase (CYP27A1) gene. Patients with typical CTX show neurological dysfunction including bilateral cataracts, paresis, cerebral ataxia, dementia, and psychiatric disorders, and magnetic resonance imaging (MRI) has revealed symmetrical lesions in the cerebellar white matter.Case presentationWe report the case of a patient with late-onset spinal form CTX without brain lesion. He showed pyramidal tract signs, and impaired joint position and vibration sensation in the lower limbs. Cervical sagittal MRI demonstrated a longitudinally extensive white matter abnormality in the dorsal column of the C2-C7 spinal cord; however, a brain MRI revealed an absence of lesions, including in the cerebellar white matter. Genetic analysis of CYP27A1 revealed that the patient was compound heterozygous for p.Gln85Arg in exon 1, a novel mutation, and p.Arg405Gln in exon 7, a previously reported mutation.ConclusionThis is the first report of late-onset spinal form CTX without typical neurological symptoms, and the first report of p.Gln85Arg in CYP27A1. We speculate that spinal form CTX without brain lesion is a clinically and radiologically rare variation of CTX. Therefore, spinal xanthomatosis should be included in the differential diagnosis of chronic myelopathy even with late-onset and/or no other typical neurological findings.
Journal of Stroke & Cerebrovascular Diseases | 2017
Tomoko Nakazora; Junko Maeda; Konosuke Iwamoto; Sayori Hanashiro; Yoshikazu Nakamura; Tetsuhito Kiyozuka; Kazuhisa Domen
OBJECTIVE Early rehabilitation for acute stroke patients is widely recommended. We tested the hypothesis that daily intervention by speech therapists promotes safe oral intake of patients with acute stroke. METHODS We analyzed hospitalized patients who experienced cerebral infarction and cerebral hemorrhage and who underwent rehabilitation between October 2010 and September 2014 at our hospital. In total, 936 patients were analyzed, and 452 patients underwent daily speech therapy. We examined the association of training frequency and eating status. RESULTS Multiple linear regression analysis indicated that daily speech therapy was correlated significantly and positively with a reduction in the number of days of hospitalization until oral intake commenced (coefficient, -.998; 95% confidence interval, -1.793 to -.202; P < .05), and was not correlated with the cessation of oral intake due to aspiration pneumonia after resuming oral intake. CONCLUSION Our retrospective cohort study demonstrated that daily intervention by speech therapists in patients with acute stroke shortens the number of days until oral intake without increasing the incidence of aspiration pneumonia.
Neurology and Clinical Neuroscience | 2015
Ken Ikeda; Sayori Hanashiro; Masahiro Sawada; Yasuo Iwasaki
Little is known about single administration of zonisamide in Parkinsons disease patients.
Case Reports in Neurology | 2013
Osamu Kano; Shinichi Okonogi; Sayori Hanashiro; Ken Miura; Ken Ikeda; Yasuo Iwasaki
Background: Benign tremulous parkinsonism (BTP) is a tremor dominant syndrome characterized by mild, levodopa-resistant parkinsonism with limited disability or progression. Case Presentation: A 56-year-old woman presented with a 2-year history of tremor. Neurological examination revealed right-hand rest tremor and slow finger tapping with decreased amplitude; however, we did not observe posture tremor, rigidity, bradykinesia, or posture disability. She was diagnosed with Parkinsons disease (PD) and received levodopa/carbidopa, effectively treating her rest tremor. At the age of 61 years, reoccurrence of the rest tremor was successfully treated again with levodopa/carbidopa and selegiline. Approximately 11 years have passed since symptom onset and the patient shows no further disease progression. Conclusion: This case broadens the characterization of BTP to include levodopa-responsive PD.
Journal of Stroke & Cerebrovascular Diseases | 2017
Ken Ikeda; Joe Aoyagi; Sayori Hanashiro; Masahiro Sawada; Maya Kyuzen; Harumi Morioka; Junya Ebina; Junpei Nagasawa; Masaru Yanagihashi; Yuichi Ishikawa; Ken Miura; Kiyoko Murata; Takanori Takazawa; Kiyokazu Kawabe; Yasuo Iwasaki
BACKGROUND Changes in regional cerebral blood flow (rCBF) were reported in migraineurs. However, little is known how preventive medications of migraine can influence rCBF. Lomerizine, a calcium channel blocker, has been used for migraine prophylaxis in Japan. We examined rCBF after lomerizine treatment. SUBJECTS AND METHODS Migraine was diagnosed according to the criteria of the International Classification of Headache Disorders, Third Edition beta. Migraine subtype was classified into migraine with aura (MA) and migraine without aura (MO). Lomerizine (10 mg/day, per oral) was administered for 3 months. Headache Impact Test-6 (HIT-6) and blood pressure (BP) were compared at baseline and end point. Brain single photon emission computed tomography using 99mTc-ethyl cysteinate dimer was performed at the interictal period. Brain SPECT data were analyzed according to revised version of 3-dimensional stereotaxic region of interest template. Clinic-radiological variables were analyzed by paired Students t test. RESULTS Ten migraineurs (4 men and 6 women) participated in the present study. Mean age was 54.1 (standard deviation [SD] 10.1) years. Mean duration of migraine was 25.3 (SD 9.8) years. Migraine subtype showed 4 MA and 6 MO patients. Mean score of HIT-6 was 66.3 (SD 11.7). Lomerizine treatment decreased HIT-6 scores significantly (P < .01). BP did not differ significantly after lomerizine treatment. Lomerizine treatment increased rCBF 20% approximately in the frontal, the parietal, the temporal, and the occipital region. CONCLUSIONS The present study indicated a significant increase in interictal rCBF after lomerizine treatment in migraineurs. The upregulation of rCBF could contribute to the antimigraine mechanism of lomerizine.
Neurology and Clinical Neuroscience | 2016
Ken Miura; Ken Ikeda; Kiyokazu Kawabe; Masahiro Sawada; Sayori Hanashiro; Hirono Ito; Yasuo Iwasaki
Keywords: brain; circulatory disturbance; lesion topography; neuroimages; rnithine transcarbamylase deficiency
Neurological Sciences | 2017
Ken Ikeda; Sayori Hanashiro; Yuichi Ishikawa; Masahiro Sawada; Maya Kyuzen; Harumi Morioka; Junya Ebina; Junpei Nagasawa; Masaru Yanagihashi; Ken Miura; Takehisa Hirayama; Takanori Takazawa; Osamu Kano; Kiyokazu Kawabe; Yasuo Iwasaki
Internal Medicine | 2014
Ken Ikeda; Masaru Yanagihashi; Masahiro Sawada; Sayori Hanashiro; Kiyokazu Kawabe; Yasuo Iwasaki
Neurology | 2017
Ken Ikeda; Osamu Kano; Kiyokazu Kawabe; Takanori Takazawa; Takehisa Hirayama; Masaru Yanagihashi; Ken Miura; Yuichi Ishikawa; Junya Ebina; Maya Kyuzen; Junpei Nagasawa; Masahiro Sawada; Sayori Hanashiro; Harumi Morioka; Yasuo Iwasaki