Naoya Oka

ORCID: 0000-0001-8894-6535
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About
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Research Areas
  • Vasculitis and related conditions
  • Systemic Lupus Erythematosus Research
  • Autoimmune and Inflammatory Disorders
  • Peripheral Neuropathies and Disorders
  • Hepatitis C virus research
  • Eosinophilic Disorders and Syndromes
  • Sarcoidosis and Beryllium Toxicity Research
  • Urticaria and Related Conditions
  • Liver Disease Diagnosis and Treatment
  • Hepatitis B Virus Studies
  • Inflammatory Myopathies and Dermatomyositis
  • Chronic Lymphocytic Leukemia Research
  • Pleural and Pulmonary Diseases
  • Occupational and environmental lung diseases
  • Otitis Media and Relapsing Polychondritis
  • Skin Diseases and Diabetes
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • SARS-CoV-2 and COVID-19 Research
  • T-cell and B-cell Immunology
  • Ear Surgery and Otitis Media
  • Mycobacterium research and diagnosis
  • Tuberculosis Research and Epidemiology
  • Pericarditis and Cardiac Tamponade
  • Infectious Diseases and Tuberculosis

Hiroshima University Hospital
2022-2023

Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital
2023

Hiroshima University
2018

ABSTRACT The direct causes of dermatomyositis, a common autoimmune disease, have not yet been accurately identified, but several studies linked this condition to various patient-associated and environmental factors, such as viral infections area residence. In the present report, we describe our experience with patient presenting anti-melanoma differentiation–associated gene 5 (MDA5) antibody-positive which developed after vaccination against coronavirus disease 2019 (COVID-19). This was...

10.1093/mrcr/rxac064 article EN Modern Rheumatology Case Reports 2022-08-11

This case report describes a 52-year-old immunocompromised man diagnosed with disseminated Mycobacterium abscessus complex (MABC) infection. The patient had history of malignant lymphoma and presented fever polyarthritis that lasted 3 weeks. Upon initial evaluation, blood synovial fluid cultures from the swollen joints were negative. Reactive arthritis or rheumatoid was suspected as cause inflammatory synovitis in multiple joints. Administration prednisolone followed by an interleukin-6...

10.1093/mrcr/rxad054 article EN Modern Rheumatology Case Reports 2023-09-15

Primary malignant pericardial mesothelioma (PMPM) is an extremely rare tumor, and it difficult to diagnose definitively before death. We present a case in which PMPM was diagnosed at autopsy. consider this be highly suggestive report here.A 78-year-old male presented with transient loss of consciousness falls. The considered result from complications diastolic dysfunction due disease, fever dehydration, paroxysmal atrial fibrillation. Ultrasound cardiography (UCG) computed tomography showed...

10.12998/wjcc.v10.i33.12380 article EN World Journal of Clinical Cases 2022-11-19

Objective This study explored the predictors of hydroxychloroquine intolerance and propose appropriate methods to initiate in patients with systemic lupus erythematosus. Methods retrospective registered consecutive who were diagnosed erythematosus started treatment between 2015 2021. Any adverse events that required dose reduction or cessation hydroxychloroquine, indicating drug, recorded for up 26 weeks after initiation hydroxychloroquine. Results A total 130 included. Hydroxychloroquine...

10.2169/internalmedicine.0961-22 article EN Internal Medicine 2022-11-15

To clarify seasonal and other environmental effects on the onset of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).We enrolled patients with new-onset eosinophilic granulomatosis polyangiitis (EGPA), microscopic (MPA), (GPA) registered in database a Japanese multicenter cohort study. We investigated relationship between factors clinical characteristics. Seasons were divided into 4 (spring, summer, autumn, winter), differences AAV analyzed using Pearson chi-square...

10.3899/jrheum.2023-0040 article EN The Journal of Rheumatology 2023-06-01

A 74-year-old woman presented with vertigo, left-beating nystagmus, and auditory disturbance 4 months prior, in whom a former physician suspected Meniere's disease. Her signs symptoms mildly improved moderate dose of glucocorticoids, which was eventually tapered. Fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed (CT) performed 12 days prior to routine examination. Remarkable FDG uptake observed the surrounding areas bilateral Eustachian tubes left middle ear, only...

10.1093/mrcr/rxac044 article EN Modern Rheumatology Case Reports 2022-05-10

IVIG and CYC may ameliorate intractable bilateral facial nerve palsy in eosinophilic granulomatosis with polyangiitis.

10.1093/rap/rkac073 article EN cc-by Rheumatology Advances in Practice 2022-01-01

A 53-year-old woman with a history of bronchial asthma was admitted to our hospital.She presented fever, purpura, peripheral neuropathies, myocarditis, glomeru-lonephritis, and hypereosinophilia elevated antineutrophil cytoplasmic antibody against myeloperoxidase.Eosinophilic granulomatosis polyangiitis (EGPA)

10.2169/internalmedicine.2313-23 article EN Internal Medicine 2023-08-31

We herein report a 20-year-old woman who developed eosinophilic granulomatosis with polyangiitis (EGPA) and portal vein thrombosis (PVT). EGPA was diagnosed based on the patient's history of asthma, hypereosinophilia, mononeuritis complex. Thrombocytopenia liver dysfunction were observed, necessitating contrast-enhanced computed tomography (CECT), which revealed PVT. Her symptoms soon improved glucocorticoids anticoagulation therapy. As patients often suffer from they can be hesitant to...

10.2169/internalmedicine.9485-22 article EN Internal Medicine 2022-06-13

A 72-year-old woman had a history of chronic hepatitis C virus (HCV) infection previously treated with interferon to achieve sustained virologic response. Thereafter, she developed polyarthritis and purpura the lower extremities as well progressive renal dysfunction hypertension proteinuria that occurred in last three months. Laboratory investigations revealed seropositivity for cryoglobulin but negative findings HCV RNA. She was ultimately diagnosed cryoglobulinemic glomerulonephritis...

10.2169/internalmedicine.9768-22 article EN Internal Medicine 2022-11-15
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