Explanipedia

Time-at-bedside and competency acquisition: a secondary analysis of GM-ITE domain scores in Japanese resident physicians Open

Kohta Katayama, Toshihiko Takada, Yuji Nishizaki, Kazuya Nagasaki, Taro Shimizu , et al. · 2025

Background Direct bedside learning is recognized as essential for clinical skill development, yet its domain-specific effects on competency acquisition have not been fully elucidated. We examined how self‐reported time‐at‐bedside was assoc…

The Future of Hospital Medicine in Japan: Lessons From the United States Hospital Medicine System Open

Tomoharu Suzuki, Kohta Katayama, Nathan Houchens, Sarah Hartley, Yasuharu Tokuda , et al. · 2025

Incorporating elements from the US model-such as group practice with shift-based systems, enhanced multidisciplinary collaboration, and structured educational and quality improvement initiatives-could address workload issues and foster pro…

Evaluation of diseases complicating long <span>COVID</span>: A retrospective chart review Open

Tomoya Tsuchida, Masanori Hirose, Hirotoshi Fujii, Ryunosuke Hisatomi, Kosuke Ishizuka , et al. · 2024

Background Evidence for the pathogenesis and treatment of postacute coronavirus disease 2019 (COVID‐19) (long COVID) is lacking. As long COVID symptoms are predicted to have an impact on the global economy, clarification of the pathogenesi…

The relation between resident mentorship and in‐training examination scores: A nation‐wide, cross‐sectional study in Japan Open

Kohta Katayama, Yuji Nishizaki, Toshihiko Takada, Koshi Kataoka, Nathan Houchens , et al. · 2024

Background Mentorship is a dynamic reciprocal relationship, wherein a novice (mentee) grows with the encouragement of an advanced careerist (mentor). It is widely implemented in medical training programs. However, there are few reports on …

Hospital Use of a Web-Based Clinical Knowledge Support System and In-Training Examination Performance Among Postgraduate Resident Physicians in Japan: Nationwide Observational Study Open

Koshi Kataoka, Yuji Nishizaki, Taro Shimizu, Yu Yamamoto, Kiyoshi Shikino , et al. · 2024

Background The relationship between educational outcomes and the use of web-based clinical knowledge support systems in teaching hospitals remains unknown in Japan. A previous study on this topic could have been affected by recall bias bec…

Evaluation of diseases complicating long COVID: A retrospective chart review Open

Tomoya Tsuchida, Masanori Hirose, Hirotoshi Fujii, Ryunosuke Hisatomi, Kosuke Ishizuka , et al. · 2024

Purpose Evidence for the pathogenesis and treatment of post-acute coronavirus disease 2019 (COVID-19) (long COVID) is lacking. As long COVID symptoms are predicted to have an impact on the global economy, clarification of the pathogenesis …

Association of sleep quality with duty hours, mental health, and medical errors among Japanese postgraduate residents: a cross-sectional study Open

Kazuya Nagasaki, Hiroyuki Kobayashi, Yuji Nishizaki, Masaru Kurihara, Takashi Watari , et al. · 2024

Long duty hours (DH) impair sleep and negatively affect residents’ health and medical safety. This cross-sectional study investigated the association among residents’ DH, sleep duration, insomnia, sleep impairment, depressive symptoms, and…

Association between mentorship and mental health among junior residents: A nationwide <span>cross‐sectional</span> study in Japan Open

Kohta Katayama, Yuji Nishizaki, Toshihiko Takada, Koshi Kataoka, Nathan Houchens , et al. · 2023

Background Mentorship is a dynamic, reciprocal relationship in which an advanced careerist (mentor) encourages the growth of a novice (mentee). Mentorship may protect the mental health of residents at risk for depression and burnout, yet d…

Treatment of long COVID complicated by postural orthostatic tachycardia syndrome—Case series research Open

Tomoya Tsuchida, Yuki Ishibashi, Yoko Inoue, Kosuke Ishizuka, Kohta Katayama , et al. · 2023

Background Coronavirus disease 2019 (COVID‐19) sequelae, also known as long COVID, can present with various symptoms. Among these symptoms, autonomic dysregulation, particularly postural orthostatic tachycardia syndrome (POTS), should be e…

Hospital use of online clinical knowledge support system and in-training examination performance among postgraduate resident physicians: a nationwide observational study in Japan (Preprint) Open

Koshi Kataoka, Yuji Nishizaki, Taro Shimizu, Yu Yamamoto, Kiyoshi Shikino , et al. · 2023

BACKGROUND The relationship between educational outcomes and the use of online clinical knowledge support systems in teaching hospitals remains unknown in Japan. A previous study in this regard could have been affected by recall bias beca…

Empathy competence and future specialty among medical residents in Japan: a nationwide cross-sectional study Open

Takashi Watari, Nathan Houchens, Yuji Nishizaki, Koshi Kataoka, T. Otsuka , et al. · 2023

Treatment of long COVID complicated by postural orthostatic tachycardia syndrome Open

Tomoya Tsuchida, Yuki Ishibashi, Yoko Inoue, Kosuke Ishizuka, Kohta Katayama , et al. · 2023

Purpose The coronavirus disease sequelae, known as long coronavirus disease may present with various symptoms. Among these symptoms, autonomic dysregulation, especially postural orthostatic tachycardia syndrome, should be evaluated. This s…

Five cluster classifications of long COVID and their background factors: A cross-sectional study in Japan Open

Tomoya Tsuchida, Naohito Yoshimura, Kosuke Ishizuka, Kohta Katayama, Yoko Inoue , et al. · 2023

Relationship between COVID-19 care and burnout among postgraduate clinical residents in Japan: a nationwide cross-sectional study Open

Yuji Nishizaki, Kazuya Nagasaki, Kiyoshi Shikino, Masaru Kurihara, Tomohiro Shinozaki , et al. · 2023

Objective The relationship between the care of patients with COVID-19 and mental health among resident physicians in Japan is imperative for ensuring appropriate care of patients with COVID-19 and should be clarified. We herein assessed th…

Impact of duty hours on competency‐related knowledge acquisition among community hospital residents Open

Kazuya Nagasaki, Yuji Nishizaki, Chisato Hachisuka, Tomohiro Shinozaki, Taro Shimizu , et al. · 2022

Background The effect of duty hour (DH) restrictions on postgraduate residents' acquisition of clinical competencies is unclear. We evaluated the relationship between DHs and competency‐related knowledge acquisition using the General Medic…

Temporal Arteritis Caused by Tertiary Syphilis Open

Kohta Katayama, Kosuke Ishizuka, Junsuke Tawara, Yuki Kaji, Mina Komuta , et al. · 2022

A 77-year-old man arrived at our hospital with bilateral shoulder pain persisting for several months and headache for 1 month. Giant cell arteritis with polymyalgia rheumatica was suspected. However, considering his medical history of test…

Moeller-Hunter glossitis Open

Kosuke Ishizuka, Kohta Katayama, Yoshiyuki Ohira · 2022

A woman in her 80s presented to our clinic with anaemia. Her medical history and medications were unremarkable. She had no history of alcohol consumption. She had a balanced diet. Vital signs were normal limits. Her tongue was highly atrop…

Prevalence and appropriateness of indwelling urinary catheters in Japanese hospital wards: a multicenter point prevalence study Open

Kohta Katayama, Jennifer Meddings, Sanjay Saint, Karen E. Fowler, David Ratz , et al. · 2022

Background Indwelling urinary catheters are commonly used in hospitalized patients, which can lead to the development of urinary catheter complications, including catheter-associated urinary tract infection (CAUTI). Limited reports on the …

Prevalence and Appropriateness of Indwelling Urinary Catheters in Japanese Hospital Wards: A Multicenter Point Prevalence Study Open

Kohta Katayama, Jennifer Meddings, Sanjay Saint, Karen E. Fowler, David Ratz , et al. · 2021

Background: Indwelling urinary catheters are commonly used in hospitalized patients, which can lead to the development of urinary catheter complications, including catheter-associated urinary tract infection (CAUTI). Limited reports on the…

The impact of autopsy participation on clinical residency Open

Kohta Katayama, Yuji Nishizaki, Tomohiro Shinozaki, Yuta Saitoh, Tetsuhiro Yano , et al. · 2021

Background Autopsy has had an essential role in ensuring the quality of education and medical care. However, its role in clinical residency has not been clarified. This study assessed actual autopsy circumstances during clinical residency …

ICE volume 40 issue 11 Cover and Front matter Open

Christina S. Thornton, Jody Dumanski, Cherylanne Margherit, Sandra Vaz-Gonsalves, Sheryl McDiarmid , et al. · 2019

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Mineralocorticoid responsive hyponatremia of the elderly Open

Kohta Katayama, Yasuharu Tokuda · 2017

All published cases of MRHE as a cause of hyponatremia are described for the first time. In these cases, latent adrenal sufficiency might have been hidden and should have been excluded.

Bezold’s abscess in a diabetic patient without significant clinical symptoms Open

Kohta Katayama, Harumi Gomi, Taijiro Shirokawa, Hiromitsu Akizuki, Hiroyuki Kobayashi · 2017

A 52-year-old Japanese man with a history of type 2 diabetes mellitus (DM) presented with mild dizziness. On admission, the physical examination only revealed tachycardia and right sided cervical lymphadenopathy. On the fifth day of admiss…

Prevalence and Appropriateness of Urinary Catheters in Japanese Intensive Care Units: Results From a Multicenter Point Prevalence Study Open

Akira Kuriyama, Tadaaki Takada, Hiromasa Irie, Masaaki Sakuraya, Kohta Katayama , et al. · 2017

Urinary catheters were frequently used in the 7 participating Japanese intensive care units and almost half did not meet an appropriate indication for use. Overusing catheters for monitoring accurate input and output was especially notable…

Timely bronchoscopic examination for a patient with hemoptysis Open

Hiroko Watanabe, Kohta Katayama, Hiroaki Satoh · 2016

Tetanus in the Elderly: The Management of Intensive Care and Prolonged Hospitalization Open

Hiroki Isono, Taiju Miyagami, Kohta Katayama, Momoko Isono, Ryuichi Hasegawa , et al. · 2016

Tetanus is a potentially fatal infection. Approximately 100 cases are reported in Japan each year; however, little is known about its clinical course and outcomes in the current era of treatment. We herein report three cases of tetanus in …

Pioglitazone-induced Pulmonary Injury in a Very Elderly Patient Open

Kohta Katayama, Ryo Kumagai, Momoko Isono, Kazuya Fujihara, Hiroaki Yagyu , et al. · 2016

An 85-year-old woman with diabetes mellitus was admitted to our hospital due to progressive dyspnea. Two months previously, pioglitazone had been newly prescribed for diabetes management. Bilateral ground-glass opacities and progressive re…

Severe Paresthesia as a Rare Presenting Symptom of Subacute Thyroiditis Open

Kohta Katayama, Yasuharu Tokuda · 2015

In this case report, we describe a male patient with subacute thyroiditis with severe paresthesia in a glove-and-stocking type distribution and thyroid gland tenderness but with minimal symptoms of hyperthyroidism. His paresthesia improved…

Causes of New Onset Fever among Hospitalized Patients and Predictors for In-Hospital Mortality in a Teaching Hospital in Japan Open

Kohta Katayama, Manami Suzuki, Yukiko Seki, Nanami Mori, Takao Kanai , et al. · 2015

Background: New onset fever is a common symptom among hospitalized patients and it may be a manifestation of fatal illnesses such as infection. However, its epidemiology and predictors for mortality have not been fully determined in a Japa…

Inter-arm Blood Pressure Difference by Takayasu’s Arteritis Open

Kohta Katayama, Yasuharu Tokuda · 2015

A physical finding can be a clue to some occult diseases.A 27-year-old asymptomatic woman was referred to our hospital because of elevated C-reactive protein of 6 mg/dl identified by a local clinic screening test.She did not have any signi…

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