Publications by authors named "Makoto Osawa"

Article Synopsis
  • There has been a notable shift in the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) clones, with community-acquired MRSA (CA-MRSA) increasing significantly while hospital-acquired MRSA (HA-MRSA) has decreased in the Kyoto and Shiga regions of Japan from 2014 to 2019.
  • The study analyzed 2413 MRSA isolates from four hospitals using PCR-based typing and whole-genome sequencing to identify common strains and their respective origins.
  • The findings highlight that specific clones of CA-MRSA are now more common among inpatients, indicating a regional clonal shift that warrants further investigation for public health implications.
View Article and Find Full Text PDF

Introduction: We have developed the Dementia Elderly Odayaka Scale (DEOS) to evaluate psychosocial aspects in older people. The DEOS can be used to assess well-being, such as personhood and social interaction.

Objective: The aim of this study was to apply the 18-item DEOS in participants with dementia and to examine the characteristics and usefulness of this scale.

View Article and Find Full Text PDF
Article Synopsis
  • Previous studies on dose-volume histogram (DVH) parameters for predicting radiation pneumonitis (RP) have shown inconsistencies, prompting a comparison of conventional DVH parameters versus those including high attenuation volume (HAV) in CT imaging for lung and esophageal cancer patients.
  • A retrospective assessment included 77 lung cancer and 72 esophageal cancer patients undergoing radiation therapy, with RP evaluated based on established criteria.
  • The study found that DVH parameters incorporating HAV provided better predictive consistency for RP across both cancer types, highlighting parameters like HAV30% and V10 as key indicators.
View Article and Find Full Text PDF

Purpose: The forced oscillation technique (FOT) is a non-invasive method to measure respiratory impedance, the respiratory resistance (Rrs) and reactance (Xrs). The disease probability measure (DPM) is a useful computed tomography (CT) imaging variable for the assessment of gas trapping and emphysema in patients with chronic obstructive pulmonary disease (COPD) using pairs of inspiratory and expiratory CT images. We aimed to develop FOT-based phenotypes and determine whether the phenotypes and their imaging characteristics could facilitate the understanding of COPD pathophysiology.

View Article and Find Full Text PDF

Background: The risk factors for radiation pneumonitis (RP) in patients with chronic obstructive pulmonary disease (COPD) are unclear. Mean lung dose (MLD) and percentage of irradiated lung volume are common predictors of RP, but the most accurate dosimetric parameter has not been established. We hypothesized that the total lung volume irradiated without emphysema would influence the onset of RP.

View Article and Find Full Text PDF

Background: In patients with pulmonary tuberculosis (TB), shortening the time to sputum culture conversion is desirable to reduce the likelihood of mycobacterial transmission. A persistent positive sputum culture after 2 months of treatment is reported to be associated with the presence of cavitation and the extent of disease on chest X-ray, high colony count, diabetes mellitus, and smoking. However, little is known about factors affecting the time to sputum culture conversion.

View Article and Find Full Text PDF

Background:  In out-patient clinics, having simple procedures to check for signs of dementia is invaluable. In the present study, we evaluated the imitation of hand gestures to detect visuomotor deficits in dementia in clinical practice.

Methods: In all, 1219 subjects were enrolled in the present study, including 497 with Alzheimer's disease (AD), 98 with dementia with Lewy bodies (DLB), 71 with other types of dementia diseases, 175 with a Clinical Dementia Rating (CDR) of 0.

View Article and Find Full Text PDF

The authors present a rare case where acute respiratory failure occurred after the intravitreal bevacizumab injection for a branch retinal vein occlusion. Chest CT scan showed ground-glass opacity in the bilateral lung fields. The finding of bronchoalveolar lavage fluid revealed alveolar haemorrhage.

View Article and Find Full Text PDF

Background And Objective: COPD is one of the leading causes of morbidity and mortality worldwide, and its prevalence continues to increase. Although spirometry is indispensable for the diagnosis of COPD, other simple and reliable tools are necessary for screening of COPD because spirometry is not widely available. This study investigated the usefulness of a combination of an electronic FEV₁/FEV₆ meter (PiKo-6) with a COPD questionnaire as a screening method in patients with cardiovascular diseases.

View Article and Find Full Text PDF

Asthma and chronic obstructive pulmonary disease (COPD) are among the most prevalent lung diseases. In both asthma and COPD, airway inflammation leads to airway remodeling. Parenchyma of the lung is also influenced by disease conditions.

View Article and Find Full Text PDF

In order to understand the spread of the erythromycin-resistant serotype 3 Streptococcus pneumoniae clone in Japan, we have assessed the molecular characteristics of this clone. Among 156 S. pneumoniae isolates recovered from adults with community-acquired pneumonia between 2003 and 2005, 42 were serotype 3 and 40 were sequence type (ST) 180/Netherlands(3)-31 by multilocus sequence typing.

View Article and Find Full Text PDF

Invasive aspergillosis (IA) is a severe complication of liver transplantation. Risk factors for IA after deceased donor liver transplantation (DDLT) have been presented in several reports, but are not well established for living donor liver transplant recipients. Here, a retrospective case-control study was performed.

View Article and Find Full Text PDF

Although macrolide-resistant Streptococcus pneumoniae strains possessing either the ermB or mefA gene are very common in Japan, clinical and microbial factors in community-acquired pneumonia (CAP) caused by different macrolide resistance genotypes have not been evaluated. A multicenter study of CAP caused by S. pneumoniae was performed in Japan from 2003 to 2005.

View Article and Find Full Text PDF

We report 2 cases of Legionella pneumonia in individuals who were exposed to aerosols during maintenance of a cooling tower at a waste processing plant. This report documents the first known occupation-related outbreak of Legionella pneumonia in Japan.

View Article and Find Full Text PDF

To evaluate the usefulness of differentiation of atypical pneumonia and bacterial pneumonia in the community-acquired pneumonia guidelines of the Japanese Respiratory Society, we investigated 124 cases of three atypical pneumonias (Mycoplasma pneumonia, 62 cases; Chlamydia pneumoniae pneumonia, 46 cases; Chlamydia psittaci pneumonia, 13 cases) and 403 cases of bacterial pneumonia at our hospital over seven years. Overall, the sensitivity and specificity of the criteria in the guideline were 70.4% and 91.

View Article and Find Full Text PDF

This paper reports the elastic constants of the Ni-base single crystal superalloy (TMS-26) with a rafted (lamellar) structure having tetragonal symmetry. The elastic constants have been measured at room temperature with the resonance ultrasound spectroscopy method and the mode-selective electromagnetic acoustic resonance method. The value of the elastic constant C33 (250.

View Article and Find Full Text PDF

A 29-year-old woman with primary myelofibrosis developed severe pneumonia, and 20 days later her 31-year-old sister also contracted pneumonia. The first patient had been in contact with parakeets but the second patient had not been in contact with any birds. Psittacosis was diagnosed in both cases by microplate immunofluorescence antibody technique.

View Article and Find Full Text PDF

A 33-y-old man with Hyper-IgM syndrome developed a severe tuberculous disease complicated by pleuritis and spondylitis. An abnormally decreased CD4/CD8 ratio, decreased CD4 + T-cell count and depressed natural killer cell activity implicated a coexistent cell-mediated immunodeficiency. To our knowledge, this is the first detailed report of tuberculosis associated with Hyper-IgM syndrome.

View Article and Find Full Text PDF

A 63-year-old male with liver cirrhosis due to type-C hepatitis virus was admitted on June 14, 1999 to our hospital with complaints of dyspnea, and blisters, swelling and purpuras on his legs. He had consumed raw fish one or two days before. He was already in a state of shock with sepsis and disseminated intravascular coagulation shortly after the admission.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Notice

Message: fwrite(): Write of 34 bytes failed with errno=28 No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 272

Backtrace:

A PHP Error was encountered

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions)

Filename: Unknown

Line Number: 0

Backtrace: