Publications by authors named "Shun Matsubara"

Objective: To evaluate the effect of emergency medicine training credentials and years of medical experience on various clinical parameters in emergency medicine practice.

Methods: A cross-sectional study was conducted at Juntendo University Nerima Hospital between 1 April 2019 and 31 March 2020. All patients who were transported by ambulance, were examined by emergency physicians, and underwent computed tomography (CT) or magnetic resonance imaging (MRI) in the emergency department were included.

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  • A 28-year-old woman with no serious health issues got really sick with dizziness and vomiting, leading to surgery for her brain after doctors found a problem with her blood vessels.* -
  • Later on, she developed a fever and was diagnosed with an infection caused by a germ called Corynebacterium striatum, which was affecting her heart's mitral valve.* -
  • After surgery to replace her damaged mitral valve, she was given medicine for 31 days and got better, leaving the hospital without any further problems.*
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  • Viral hepatitis is a significant global health threat, leading to high mortality rates and liver complications from five different viruses: Hepatitis A, B, C, D, and E.
  • Despite some effective treatments, many patients still suffer due to gaps in healthcare and the need for more accessible therapies.
  • The World Health Organization's 2016 plan aims to eliminate viral hepatitis as a public health issue by 2030, emphasizing the need for safer, shorter treatments and better understanding of the disease's mechanisms.
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Background: Coronavirus disease 2019 (COVID-19)-associated invasive pulmonary aspergillosis presents a diagnostic challenge due to its non-specific clinical/ imaging features, as well as the fact that the proposed clinically diagnostic algorithms do not necessarily apply to COVID-19 patients. In addition, . is a rare cause of opportunistic life-threatening fungal infections.

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  • - Penoscrotal constriction devices can enhance erotic experiences but can lead to emergencies like penile strangulation, requiring urgent medical intervention to prevent lasting damage.
  • - A 47-year-old man with a history of HIV experienced severe pain and swelling after applying stainless steel rings to his penis and scrotum for sexual pleasure, leading to his hospitalization.
  • - Medical staff struggled to remove the constricting rings, ultimately using an electric grinder to cut them, successfully resolving the emergency, making this the first documented case in an HIV-positive patient.
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Background: Dextromethorphan is a prevalent antitussive agent that can be easily obtained as an over-the-counter medication. There has been a growing number of reported cases of toxicity in recent years. Generally, there are numerous instances of mild symptoms, with only a limited number of reports of severe cases necessitating intensive care.

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Amebic liver abscesses (ALAs) are the most commonly encountered extraintestinal manifestation of human invasive amebiasis, which results from () spreading extraintestinally. Amebiasis can be complicated by liver abscess in 9% of cases, and ALAs led to almost 50000 fatalities worldwide in 2010. Although there have been fewer and fewer cases in the past several years, ALAs remain an important public health problem in endemic areas.

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Background: Esophageal submucosal hematoma is a rare condition. Although the exact etiology remains uncertain, vessel fragility with external factors is believed to have led to submucosal bleeding and hematoma formation; the vessel was ruptured by a sudden increase in pressure due to nausea, and the hematoma was enlarged by antiplatelet or anticoagulant therapy. Serious conditions are rare, with a better prognosis.

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