Publications by authors named "Masumitsu T"

Older adults are more likely to have age-related sleep problems, which may result in the reduction of cognitive functions. This study was designed to examine the relationship between sleep onset problem and subjective cognitive complaints (SCC) among community-dwelling older adults during the coronavirus disease 2019 pandemic. In this study, 186 older adults aged 65 and above were enrolled and were instructed to respond to an online survey.

View Article and Find Full Text PDF

Aim: This study aims to investigate the association of the Cardio-Ankle Vascular Index (CAVI) with self-reported sleep duration and sleep quality in community-dwelling older adults aged ≥ 65 years.

Methods: The Tarumizu Study was a cohort of community-based health checkups conducted in the Tarumizu City, Japan, in 2018 and 2019. In total, 997 participants aged ≥ 65 years (median age, 74 years) were examined.

View Article and Find Full Text PDF

Regular exercise may be associated with better self-rated health and sleep status. However, this correlation among various age groups, such as young, middle-aged, and older people, as well as during the COVID-19 pandemic, has not been examined. This study examined the correlation between regular exercise and self-rated health and sleep quality among adults in Japan during the COVID-19 pandemic.

View Article and Find Full Text PDF

We investigated as to whether the naturalness of images modulated by a combination of chroma and lightness contrast affects the colorfulness perception. Four types of modulated images with different combinations of chroma and lightness contrast were used as adaptation stimuli. After adapting to one of the adaptation stimuli groups, observers judged the colorfulness of test images that were also modulated by the different combinations of chroma and lightness contrast.

View Article and Find Full Text PDF

Background: Since metastatic brain tumours from esophageal carcinoma are essentially rare, previous reports have not determined the common neuro-radiological findings and its clinical aspects.

Findings: We report the neuro-imaging and clinicopathological features of our 8 metastatic brain tumours from an esophageal site. Histologically, 6 of our 8 patients had squamous cell carcinoma and 2 had small cell carcinoma, a rare variant form.

View Article and Find Full Text PDF

We report an 11-year-old girl with progressive hypopituitarism and visual loss of the right eye caused by trans-sphenoidal and sphenoethmoidal encephaloceles associated with morning glory syndrome. She was first seen at the age of 8 years, because of polydipsia and polyuria, and examination at that time revealed pituitary dwarfism and morning glory syndrome with visual disturbance of the right eye. Hormonal examinations revealed deficiency of growth hormone (GH) and anti-diuretic hormone (ADH).

View Article and Find Full Text PDF

A gauze sponge wrapping method to prevent recurrent subarachnoid hemorrhage (SAH) after incomplete obliteration of intracranial aneurysm or a residual neck after clipping was developed and tested. The authors performed the gauze wrapping for aneurysms with incomplete obliteration by clipping alone, abnormal changes of the parent artery wall which had the possibility of regrowth or rerupture, and surgical difficulties. The residual neck of the aneurysm or the abnormal arterial wall was tightly and completely wrapped, including the parent artery, and cemented with plastic adhesive.

View Article and Find Full Text PDF

Three cases of ruptured arteriovenous malformations (AVMs) in childhood associated with trivial head trauma are reported. These patients represented 12.5% of 25 consecutive patients with cerebral AVMs.

View Article and Find Full Text PDF

Not infrequently, it is difficult to differentiate the chiasmal meningioma from other suprasellar tumors, especially pituitary adenoma and craniopharyngioma. Authors examined 7 cases of chiasmal meningioma from neurological, endocrinological and neuroradiological points of view in comparison with the cases of pituitary adenoma and craniopharyngioma. As the results, the following features can be regarded as the differential characteristics of the chiasmal meningioma.

View Article and Find Full Text PDF

A case of persistent primitive hypoglossal artery, accompanied by a basilar bifurcation aneurysm, is reported. The persistent primitive hypoglossal artery was seen on the right side and the left vertebral artery was hypoplastic. The right vertebral artery was absent, while a normal sized posterior communicating artery was seen on the right side at the operation on the aneurysm.

View Article and Find Full Text PDF