Kentaro Wakamatsu

ORCID: 0000-0003-4311-887X
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About
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Research Areas
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Infectious Diseases and Tuberculosis
  • Tuberculosis Research and Epidemiology
  • Pleural and Pulmonary Diseases
  • Inhalation and Respiratory Drug Delivery
  • Medical Imaging and Pathology Studies
  • Eosinophilic Disorders and Syndromes
  • Occupational exposure and asthma
  • Sarcoidosis and Beryllium Toxicity Research
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Hematological disorders and diagnostics
  • Lung Cancer Research Studies
  • Diagnosis and treatment of tuberculosis
  • COVID-19 Clinical Research Studies
  • Asthma and respiratory diseases
  • Pneumocystis jirovecii pneumonia detection and treatment
  • SARS-CoV-2 and COVID-19 Research
  • Neonatal Respiratory Health Research
  • SARS-CoV-2 detection and testing
  • Respiratory Support and Mechanisms
  • Nutrition and Health in Aging
  • Bacterial Identification and Susceptibility Testing
  • Occupational and environmental lung diseases
  • Lung Cancer Diagnosis and Treatment
  • Acute Kidney Injury Research

Omuta hospital
2015-2025

National Hospital Organization
2022

Care International
2022

International University of Health and Welfare
2022

Ibarakihigashi National Hospital
2022

Amrita Institute of Medical Sciences and Research Centre
2021

Pulmonary and Critical Care Associates
2021

Yeouido St. Mary's Hospital
2021

Catholic University of Korea
2021

Weatherford College
2020

Antimicrobial resistance is a global health concern, and methicillin-resistant Staphylococcus aureus (MRSA) one of the highest-priority organisms exhibiting this phenotype. Here, we performed national surveillance integrating patient clinical data S. isolated from bloodstream infections. We genome sequencing, standardized antimicrobial susceptibility testing, collected metadata 580 isolates during 2019–2020. focused on three predominant clonal complexes (CC1, CC5, CC8) assesses their...

10.1038/s41467-025-57575-2 article EN cc-by-nc-nd Nature Communications 2025-03-19

Objective The aim of this study was to clarify the association between nutritional state on admission and in-hospital death in tuberculosis (TB) patients, including a high proportion elderly patients. Methods A retrospective cohort 246 TB patients conducted. serum albumin concentrations peripheral blood lymphocyte counts were measured admission, primary outcome interest death. Patient mortality categorized into two groups: non-TB multivariate analysis performed evaluate relationship Results...

10.2169/internalmedicine.52.8158 article EN other-oa Internal Medicine 2013-01-01

Asthma is a heterogeneous disease, and phenotyping can facilitate understanding of disease pathogenesis direct appropriate asthma treatment. This nationwide cohort study aimed to phenotype patients in Japan identify potential biomarkers classify the phenotypes.Adult (n = 1925) from 27 national hospitals were enrolled divided into Global Initiative for (GINA) steps 4 or 5 (GINA 4, 5) GINA Steps 1, 2, 3 1-3) therapy. Clinical data questionnaires collected. Biomarker levels among measured....

10.1016/j.alit.2022.06.002 article EN cc-by-nc-nd Allergology International 2022-07-02

Although the heart rate variability (HRV) values in adults decrease with aging, those children show a variety of changes. The present study was designed to investigate relationship between HRV and physique blood pressure 70 healthy male school children, 6 12 years age. subjects were divided into 3 age groups (6-7, 8-9 10-12 years) other according (thin, under -10%; normal, -10-20% obese, over 20% obesity index). After recording 24-h ambulatory electrocardiograph, determined spectrally, using...

10.1081/ceh-100108718 article EN Clinical and Experimental Hypertension 2002-01-01

To report the occurrence of an advanced case indium lung disease with severely progressive emphysema in indium-exposed worker.A healthy 42-year-old male smoker was employed to primarily grind indium-tin oxide (ITO) target plates, exposing him for 9 years (1998-2008). In 2004, epidemiological study conducted on workers at factory which he worked. The subject's serum concentration (In-S) 99.7 μg/l, while his Krebs von den Lungen-6 level 2,350 U/ml. Pulmonary function tests showed forced vital...

10.1539/joh.16-0076-cs article EN Journal of Occupational Health 2016-08-03

Abstract Although sedation for bronchoscopy improves patient comfort, there is a risk of oversedation in elderly patients. Only few studies have evaluated the efficacy and safety This study retrospectively analyzed records 210 patients who underwent transbronchial brushing and/or biopsy under midazolam at National Hospital Organization Omuta between June 2017 October 2019. Patients were administered 1 mg following 10 mL 4% lidocaine inhalation. When was insufficient, 0.5 additionally....

10.1097/md.0000000000022561 article EN cc-by-nc Medicine 2020-10-23

Acute respiratory distress syndrome (ARDS) complication has long been considered a factor associated with poor prognosis in patients miliary tuberculosis. However, few reports exist on the prognostic factors of tuberculosis including those complicating ARDS.We retrospectively examined prognoses and other clinical information obtained from medical records total 68 diagnosed Clinical findings were compared between who died within three months (non-survivor group) survived beyond (survivor...

10.1016/j.jctube.2018.07.001 article EN cc-by-nc-nd Journal of Clinical Tuberculosis and Other Mycobacterial Diseases 2018-07-21

It is difficult to predict survival in patients with idiopathic pulmonary fibrosis. Recently, several proteins, such as surfactant protein (SP) and KL-6, have been reported be useful biologic markers for prediction of prognosis interstitial pneumonias. not clear whether there any relationship between expression these proteins regenerative/hyperplastic alveolar epithelial cells pneumonias (IIPs).This study aimed elucidate the clinical significance lung secretory SP-A KL-6 tissues IIPs.We...

10.1186/1746-1596-6-25 article EN cc-by Diagnostic Pathology 2011-03-25

We report a case of bronchobronchiolitis obliterans associated with Stevens-Johnson syndrome diagnosed using bronchography and bronchoscopy in 25-year-old man dyspnea. Eighteen months prior to admission, the diagnosis due anticonvulsant therapy was made at another hospital. On patient wheezing had overinflation lungs, marked obstructive pulmonary dysfunction. Ventilation perfusion scintigrams revealed multiple ventilation defects but not mismatch. Bronchography central bronchiectasis...

10.2169/internalmedicine.34.772 article EN Internal Medicine 1995-01-01

This study was aimed to identify the relationship between radiographic features of elderly pulmonary TB patients and nutritional deficiency.Ninety-two older than 70 years age with were retrospectively enrolled. The influence parameters, such as serum albumin concentration peripheral blood total lymphocyte count on CT findings examined. classified those including atypical (segmental or lobar consolidation in an unusual location, miliary nodules, hilar mediastinal lymphadenopathy) not. number...

10.2169/internalmedicine.50.5198 article EN other-oa Internal Medicine 2011-01-01

Abstract Background Pathogenic genetic testing for coronavirus disease 2019 (COVID-19) can detect viruses with high sensitivity; however, there are several challenges. In the prevention, testing, and treatment of COVID-19, more effective, safer, convenient methods desired. We evaluated possibility monocyte distribution width (MDW) as an infection biomarker in COVID-19 testing. Methods The efficacy MDW a screening test was retrospectively assessed 80 patients group 232 non-COVID-19 (141 acute...

10.1186/s40001-023-01086-7 article EN cc-by European journal of medical research 2023-03-27

Abstract Background A male worker with indium-tin oxide (ITO)-induced pneumoconiosis underwent bilateral lung transplantation (LT). Methods Post-LT histopathological investigations of the isolated lungs and hilar lymph nodes were performed indium concentration in serum (In-S) Krebs von den Lungen-6 (KL-6) tracked for 122 weeks. Results He has attained ultimate treatment goal > 2-year survival. The main characteristics pan-lobular emphysematous change, interstitial fibrosis,...

10.1002/1348-9585.12165 article EN cc-by-nc Journal of Occupational Health 2020-01-01
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