Yuki Otsuka
Okayama University
Internal medicineRadiologyEndocrinologyEtiologySurgeryPathologyDermatologyCardiologyAnginaAldosteroneAcute abdomenThyroid nodulesSitus inversusDiseaseLeft sided appendicitisSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Coronavirus disease 2019 (COVID-19)In patientMedicineUrinary systemComplication
22Publications
1H-index
5Citations
Publications 20
Newest
#1Yuki Otsuka (Okayama University)H-Index: 1
#2Hideharu Hagiya (Okayama University)H-Index: 5
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 9 authors...
The gold standard for the diagnosis of coronavirus disease 2019 (COVID-19) is a nucleic acid detection test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which may occasionally reveal false-positive or false-negative results. Herein, we describe a case of a patient infected with human coronavirus NL63 (HCoV-NL63) who was falsely diagnosed with COVID-19 using the Ampdirect™ 2019-nCoV detection kit (Shimadzu Corporation, Japan) and SARS-CoV-2 Detection Kit (TOYOBO co., ltd.), a...
1 CitationsSource
#1Yuki Otsuka (Okayama University)H-Index: 1
#2Yasuhiro Nakano (Okayama University)H-Index: 3
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 8 authors...
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#1Yuki Otsuka (Okayama University)H-Index: 1
#2Yasuhiro Nakano (Okayama University)H-Index: 3
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 9 authors...
Objective null Urinary free cortisol (UFC) is a reliable marker to avoid cortisol fluctuation and the effects of binding proteins. However, UFC levels are affected by fluid intake and urine volume, and the normal levels range widely. null Methods null To discover the utility of the ratio of urinary cortisol to aldosterone excretions, 246 patients in whom daily excretions of UFC and aldosterone (UAC) were measured were retrospectively analyzed. null Results null The UFC/UAC ratio showed significa...
#1Yuki Otsuka (Okayama University)H-Index: 1
#2Hideharu Hagiya (Okayama University)H-Index: 13
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 6 authors...
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#1Shinnosuke Fukushima (Okayama University)
#2Hideharu Hagiya (Okayama University)H-Index: 13
Last. Fumio Otsuka (Okayama University)H-Index: 35
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This study examined temporal trend, seasonality, and geographical variations of legionellosis incidence and mortality in Japan. This nationwide observational study used the Japanese Vital Statistics and Infectious Diseases Weekly Report (1999-2017) data to calculate legionellosis crude and age-adjusted incidence and mortality rates per 100,000 population by age and sex. Incidence was compared among the 4 seasons and regional incidence among 47 prefectures. Of 13,613 (11,194 men) people with legi...
1 CitationsSource
#1Koki Li (Okayama University)
#2Yuki Otsuka (Okayama University)H-Index: 1
Last. Fumio Otsuka (Okayama University)H-Index: 35
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Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) mainly affects young adults and can have a potential impact on social functioning. As this syndrome is associated with endothelial dysfunction, the heart can be damaged via ischemia due to endothelial damage. This might potentially lead to heart failure, which accounts for approximately 20% of deaths among patients with ME/CFS. While cardiac ischemia is thought be a pathophysiologically important manifestation of this syndrome, this is ...
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#1Yuki Otsuka (Okayama University)H-Index: 1
#2Kosuke Oka (Okayama University)H-Index: 2
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 4 authors...
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#1Yuki Otsuka (Okayama University)H-Index: 1
#2Hideharu Hagiya (Okayama University)H-Index: 5
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 4 authors...
A 52-year-old woman diagnosed with Marfan syndrome had undergone surgeries for the correction of the aorta; Bentall procedure (32 years ago) and a thoracoabdominal aortic replacement (3 years ago). The patient was referred to the hospital with a history of prolonged fever (>40 days). On
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#1Yuki Otsuka (Okayama University)H-Index: 1
#2Yasuhiro Nakano (Okayama University)H-Index: 9
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 6 authors...
Physicians should be aware of the risk of malignancy in patients with toxic multinodular goiter. Radionuclide scan cannot be used to predict the malignant potential of thyroid nodules. A comprehensive evaluation of imaging studies is needed.
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#1Yuki Otsuka (Okayama University)H-Index: 1
Last. Fumio Otsuka (Okayama University)H-Index: 35
view all 6 authors...
Situs inversus may mimic the pain localization of acute abdomen. In patients with acute abdomen, especially elderly patients who are medically healthy, physicians should cautiously diagnose the etiology of acute abdomen in combination with imaging studies.
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