Hiroyuki Nagano
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View article: Challenges in the Diagnosis and Management of Culture-Negative Infective Endocarditis in a 64-Year-Old Hemodialysis Patient
Challenges in the Diagnosis and Management of Culture-Negative Infective Endocarditis in a 64-Year-Old Hemodialysis Patient Open
We report a case of culture-negative infective endocarditis in a 64-year-old hemodialysis patient who presented with fever and dyspnea. Despite empirical antibiotic therapy and negative blood cultures, transesophageal echocardiography late…
View article: Performance evaluation of ChatGPT in detecting diagnostic errors and their contributing factors: an analysis of 545 case reports of diagnostic errors
Performance evaluation of ChatGPT in detecting diagnostic errors and their contributing factors: an analysis of 545 case reports of diagnostic errors Open
Background Manual chart review using validated assessment tools is a standardised methodology for detecting diagnostic errors. However, this requires considerable human resources and time. ChatGPT, a recently developed artificial intellige…
View article: Which competencies are required for on-call physicians for home medical care? A qualitative study of homecare providers' experiences in Japan's super-aged society
Which competencies are required for on-call physicians for home medical care? A qualitative study of homecare providers' experiences in Japan's super-aged society Open
Rationale, aims, and objectives: In Japan, many older people hope to receive end-of-life care at home. In such situations, team-based home medical care with the support of on-call physicians is needed. However, to date, necessary competenc…
View article: Presenteeism and social interaction in the “new normal” in Japan: a longitudinal questionnaire study
Presenteeism and social interaction in the “new normal” in Japan: a longitudinal questionnaire study Open
Our results suggested that social support reduced the presenteeism of the Japanese workers during the "new normal" due to the COVID-19 pandemic. Social interaction with family also relieved presenteeism.
View article: Corrigendum to “Impact of the cefazolin shortage on the selection and cost of parenteral antibiotics during the supply disruption period in Japan: A controlled interrupted time series analysis” J Infect Public Health 16 (2023) 467–473
Corrigendum to “Impact of the cefazolin shortage on the selection and cost of parenteral antibiotics during the supply disruption period in Japan: A controlled interrupted time series analysis” J Infect Public Health 16 (2023) 467–473 Open
View article: Roles considered important for hospitalist and non-hospitalist generalist practice in Japan: a survey study
Roles considered important for hospitalist and non-hospitalist generalist practice in Japan: a survey study Open
Background An increased focus on quality and patient safety has led to the evolution of hospitalists. The number of hospitalists covering ward and outpatient care is on the rise in Japan. However, it is unclear what roles hospital workers …
View article: Gastroesophageal Reflux Disease or Proton Pump Inhibitor Use?
Gastroesophageal Reflux Disease or Proton Pump Inhibitor Use? Open
View article: Five strategies on writing research papers for beginners and young general medicine doctors
Five strategies on writing research papers for beginners and young general medicine doctors Open
We propose five important strategies for young generalists to write original research and papers. We hope that even beginners will understand and practice these five strategies, and help young generalist to write research papers based on c…
View article: Roles considered important for hospitalist and non-hospitalist generalist practice in Japan: A survey study
Roles considered important for hospitalist and non-hospitalist generalist practice in Japan: A survey study Open
Background: An increased focus on quality and patient safety led to the evolution of the hospitalist specialty. The number of hospitalists, who cover ward and outpatient care, is on the rise in Japan. However, it is unclear what roles hosp…
View article: Real opinions on general medicine residency programs in Japan: Perspectives from medical students, residents, and young academic generalists
Real opinions on general medicine residency programs in Japan: Perspectives from medical students, residents, and young academic generalists Open
Medical students and junior residents have five concerns about general medicine training, and senior residents and young academic generalists respond to these concerns. We hope that this paper will help to dispel some common concerns for t…
View article: Increasing the Status of Hospital General Medicine Departments with Emphasis on Outpatient Care in Japan
Increasing the Status of Hospital General Medicine Departments with Emphasis on Outpatient Care in Japan Open
Demand is increasing for general medicine services in Japan, a super-aged society. The new medical specialty system introduced in 2019 obligates physicians to obtain a qualified specialty from among 19 basic specialty fields, including gen…
View article: Competencies for on‐call physicians for home medical care: A qualitative study of home care providers' experiences in Japan’s super‐aged society
Competencies for on‐call physicians for home medical care: A qualitative study of home care providers' experiences in Japan’s super‐aged society Open
Background In Japan, many older people hope to receive end‐of‐life care at home. In such situations, team‐based home medical care with the support of on‐call physicians is needed. However, to date, necessary competencies for the on‐call ph…
View article: Hospital at Home for Elderly COVID-19 Patients: A Preliminary Report with 100 Patients
Hospital at Home for Elderly COVID-19 Patients: A Preliminary Report with 100 Patients Open
Hospital-at-home (HaH) care is useful for patients with COVID-19 and an alternative strategy when hospital capacity is under pressure due to patient surges. However, the efficacy and safety of HaH in elderly patients with COVID-19 remain u…
View article: Large-Scale Observational Study on the Current Status and Challenges of General Medicine in Japan: Job Description and Required Skills
Large-Scale Observational Study on the Current Status and Challenges of General Medicine in Japan: Job Description and Required Skills Open
Taiju Miyagami,1 Toru Yamada,2 Yohei Kanzawa,3 Shunsuke Kosugi,4 Kazuya Nagasaki,5 Hiroyuki Nagano,6 Taro Shimizu,7 Kazutoshi Fujibayashi,1 Gautam A Deshpande,1 Toshio Naito1 1Department of General Medicine, Juntendo University Faculty of …
View article: Hospitalization for ischemic stroke was affected more in independent cases than in dependent cases during the COVID-19 pandemic: An interrupted time series analysis
Hospitalization for ischemic stroke was affected more in independent cases than in dependent cases during the COVID-19 pandemic: An interrupted time series analysis Open
Background The pandemic of the coronavirus disease 2019 (COVID-19) has affected health care systems globally. The aim of our study is to assess the impact of the COVID-19 pandemic on the number of hospital admissions for ischemic stroke by…
View article: Establishment and Performance of Hospitalist Team in the Young Primary Care Doctors Division of the Japan Primary Care Association
Establishment and Performance of Hospitalist Team in the Young Primary Care Doctors Division of the Japan Primary Care Association Open
近年,病院総合医の必要性や重要性が注目されているが,若手の病院総合医が活動できる場はなかった.今回,日本プライマリ・ケア連合学会に,主に10年目以下の若手病院総合医で構成される「病院総合医チーム」という組織を構築した.病院総合医チームの活動内容を報告し,その活動の意義と今後の展望について考察を行う.
View article: Corrigendum to ‘Hospitalization of mild cases of community-acquired pneumonia decreased more than severe cases during the COVID-19 pandemic.’ [Int J Infect Dise. Vol 106 (2021) P323–328]
Corrigendum to ‘Hospitalization of mild cases of community-acquired pneumonia decreased more than severe cases during the COVID-19 pandemic.’ [Int J Infect Dise. Vol 106 (2021) P323–328] Open
The authors regret that the results should be revised as below due to calculation errors:1In the results of the abstract section (page 323), '–48.1%' should be replaced with '–45.2%'.2In the results of the abstract section (page 323), '–12…
View article: Hospitalization of mild cases of community-acquired pneumonia decreased more than severe cases during the COVID-19 pandemic
Hospitalization of mild cases of community-acquired pneumonia decreased more than severe cases during the COVID-19 pandemic Open
This study showed a significant reduction in the number of inpatient cases for CAP during the COVID-19 pandemic in Japan. The milder cases showed a greater decrease in the year-over-year ratio of the number of inpatient cases.
View article: Hospitalization of mild cases of community-acquired pneumonia decreased more than severe ones during the COVID-19 epidemic
Hospitalization of mild cases of community-acquired pneumonia decreased more than severe ones during the COVID-19 epidemic Open
Objective The epidemic of the coronavirus disease 2019 (COVID-19) has affected the entire health care systems. Our aim was to assess the impact of the COVID-19 epidemic on the number and severity of cases for community-acquired pneumonia (…
View article: A model six-month workshop for developing systematic review protocols at teaching hospitals: action research and scholarly productivity
A model six-month workshop for developing systematic review protocols at teaching hospitals: action research and scholarly productivity Open
View article: Additional file 1 of A model six-month workshop for developing systematic review protocols at teaching hospitals: action research and scholarly productivity
Additional file 1 of A model six-month workshop for developing systematic review protocols at teaching hospitals: action research and scholarly productivity Open
Additional file 1: Supplementary Table 1. Questionnaire for participants. A questionnaire given to workshop participants. Supplementary Table 2. Number of SRs in PubMed affiliated with the hospitals for three years before and after the WS.…
View article: EVALUATION OF THE UPSTREAM WATER LEVEL OF THE FLOW OVER WEIRS WITH RECTANGULAR LONGITUDINAL CROSS-SECTION
EVALUATION OF THE UPSTREAM WATER LEVEL OF THE FLOW OVER WEIRS WITH RECTANGULAR LONGITUDINAL CROSS-SECTION Open
堰を有する河川の治水計画の基本となる水面形計算では堰直上流の水位を可能な限り正確に見積もることが求められる.本研究では矩形幅厚堰について堰頂上の流れの状態と対応して流量係数を与えたGovinda Rao and Muranlidharの実験データの解析により越流水深h,限界水深hc,堰厚さLの間の関係をh/hc ~ hc/Lの関数関係として定式化すると共に,その結果をBazinおよび本間の実験データにより検証した.その結果,h/L ≤ 1.6に対応するhc/L ≤ 1.10…
View article: Coup de Fouet Syndrome
Coup de Fouet Syndrome Open
View article: The decrease in hospitalizations for transient ischemic attack and ischemic stroke, especially in mild cases, during the COVID-19 epidemic in Japan
The decrease in hospitalizations for transient ischemic attack and ischemic stroke, especially in mild cases, during the COVID-19 epidemic in Japan Open
Background and Purpose The epidemic of the coronavirus disease 2019 (COVID-19) has affected health care systems globally. The aim of our study was to assess the impact of the COVID-19 epidemic on hospital admissions for stroke in Japan. Me…
View article: Economic impact of the first wave of the COVID-19 pandemic on acute care hospitals in Japan
Economic impact of the first wave of the COVID-19 pandemic on acute care hospitals in Japan Open
Background In response to the coronavirus diseases 2019 (COVID-19) pandemic, the Japanese government declared a state of emergency on April 7, 2020. Six days earlier, the Japan Surgical Society had recommended postponing elective surgical …
View article: AN ATTEMPT TO FORMULATE THE RELATIONSHIP BETWEEN DISCHARGE AND UPSTREAM WATER LEVEL OF THE FLOW OVER SHARP-CRESTED WEIRS
AN ATTEMPT TO FORMULATE THE RELATIONSHIP BETWEEN DISCHARGE AND UPSTREAM WATER LEVEL OF THE FLOW OVER SHARP-CRESTED WEIRS Open
Hydraulics of sharp-crested weirs is investigated in order to obtain the base data for flood control planning in rivers with weir(s). A unique relationship between the dimensionless critical depth and the upstream head from the crest was o…
View article: Mania induced by isoniazid preventive therapy during steroid treatment for rheumatoid arthritis and organising pneumonia
Mania induced by isoniazid preventive therapy during steroid treatment for rheumatoid arthritis and organising pneumonia Open
Isoniazid preventative therapy is widely used for latent tuberculosis infection. Isoniazid is highly effective but has many adverse effects, including neuropsychiatric. We describe the case of an 80-year-old woman with mania. She had recei…
View article: <i>Ruminococcus gnavus</i> bacteremia without septic arthritis or intestinal lesions in a very elderly patient
<i>Ruminococcus gnavus</i> bacteremia without septic arthritis or intestinal lesions in a very elderly patient Open
Ruminococcus gnavus (R. gnavus) は腸内細菌叢に含まれ，化膿性関節炎や腸管病変に合併した菌血症で検出さ れる．今回，超高齢者において，化膿性関節炎も腸管病変も伴わず，遷延する発熱・炎症のみを呈したR. gnavus 菌血症の症例を経験した．症例は90 歳男性で，2 か月間にわたる38℃前後の発熱を主訴に受診した．血液培養を実施したところ，嫌気性菌用ボトルからR. gnavus を検出した．各種精査を行うも，化膿性関節炎も腸管病変も認めなかった．…
View article: Multiple gout tophi
Multiple gout tophi Open
View article: DEVELOPMENT OF A 1D/2D HYBRID NUMERICAL MODEL FOR RIVERBED DEFORMATION
DEVELOPMENT OF A 1D/2D HYBRID NUMERICAL MODEL FOR RIVERBED DEFORMATION Open
近年の河床変動計算は高次元や長期にわたり行われているが，現代においても高次元の河床変動計算を行う場合は多くの時間を要する．また，河川生態系モデルにおいて計算負荷の観点から一次元のモデルが適用されることが多いが，生物環境の評価には分布による表現が必要であるため，河床変動においても平面的に捉える必要がある．本研究では，平水時における一次元での流れ場の解析と出水時における平面二次元の河床変動解析を連続的に行うことが可能なモデルの開発を行い，山口県の一級河川である佐波川に適用して有…