Publications by authors named "Shota Uchiyama"

Background: COVID-19, caused by SARS-CoV-2, has caused a global pandemic. This study aimed to identify predictors of in-hospital mortality in unvaccinated elderly patients with COVID-19 by comparing various predictive factors between the survivors and non-survivors.

Methods: We retrospectively selected 132 unvaccinated patients aged over 65 years with COVID-19 at a hospital in Kanagawa, Japan, during SARS-CoV-2 Alpha variants epidemic.

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Background: High-resolution computed tomography (HRCT) correlates with clinical symptoms, respiratory function, and quality of life in bronchiectasis.

Objective: We aimed to investigate the relationship between macrolide and acute exacerbation (AE) in idiopathic bronchiectasis classified by the Bronchiectasis Radiologically Indexed CT Score (BRICS).

Methods: We retrospectively reviewed the medical records of patients diagnosed with idiopathic bronchiectasis between April 2014 and December 2020 at a single hospital.

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Objective Coronavirus disease 2019 (COVID-19) has caused a collapse of the medical care system, with effective triage proving vital. The Kanagawa admission priority assessment score, version-1 (KAPAS-1) and version-2 (KAPAS-2), was developed to determine the need for hospitalization. Patients with a high KAPAS (≥5) are recommended for hospitalization.

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Article Synopsis
  • The study evaluates the effectiveness of serological tests for detecting anti-SARS-CoV-2 nucleocapsid (N) and spike (S) antibodies in COVID-19 patients and a control group in Japan.
  • The highest positivity rates for these antibodies were observed more than 14 days after symptom onset, with N antibodies showing a slightly higher positivity rate than S antibodies.
  • The research proposes lowering cut-off levels for antibody positivity to enhance the sensitivity of COVID-19 serological tests, suggesting that both N and S antibodies should be measured for improved diagnostics.
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Background: Although cigarette smoking may have a negative impact on the clinical outcome of pulmonary tuberculosis (PTB), few studies have investigated the impact of smoking-associated lung diseases. Emphysema is a major pathological finding of smoking-related lung damage. We aimed to clarify the effect of emphysema on sputum culture conversion rate for Mycobacterium tuberculosis (MTB).

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