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We report an uncommon case of thrombogenesis in the distal aortic arch after apicoaortic conduit (AAC) for severe aortic stenosis (AS). A 71-year-old woman underwent AAC with a bioprosthetic valve for severe AS because of heavy calcification of the ascending aorta. Although anticoagulant therapy with warfarin was performed, a postoperative computed(More)
The largest ever Ebola virus disease outbreak is ravaging West Africa. The constellation of little public health infrastructure, low levels of health literacy, limited acute care and infection prevention and control resources, densely populated areas, and a highly transmissible and lethal viral infection have led to thousands of confirmed, probable, or(More)
With the recent outbreaks of avian influenza A (H5N1), the risk for the next influenza pandemic has increased. For effective countermeasures against the next pandemic, investigation of past pandemics is necessary. We selected cases diagnosed as influenza from medical records and hospitalization registries of Japanese army hospitals during 1918-1920, the(More)
In July 2014, a Japanese traveller returning from Thailand was investigated for fever, headache, rash and conjunctivitis. Zika virus RNA was detected in his urine sample by real-time reverse transcription polymerase chain reaction. Serological tests showed cross reactivity of IgM against the dengue virus. Zika fever could be misdiagnosed or missed and(More)
We performed a retrospective case-series study of patients with influenza A (H5N1) admitted to the National Institute of Infectious and Tropical Diseases in Hanoi, Vietnam, from January 2004 through July 2005 with symptoms of acute respiratory tract infection, a history of high-risk exposure or chest radiographic findings such as pneumonia, and positive(More)
The largest ever outbreak of Ebola virus disease has been spreading in West Africa. The authors were deployed to Liberia and Sierra Leone as short-term consultants for the World Health Organization. Our mission was to ensure clinical management and infection prevention and control priorities in frontline treatment centres. This paper describes how the(More)
BACKGROUND An immunohistochemical (IHC) method is commonly used for determining estrogen receptor (ER) and progesterone receptor (PR) status in breast cancer. However, the proper cut-off points of IHC have not been established. Cut-off points for ER and PR status as predictive factors for endocrine therapy are needed. METHODS A total of 249 cases of(More)
Prosthetic valve endocarditis (PVE) caused by Pseudomonas aeruginosa is a rare but life-threatening complication. Early surgical intervention, as well as appropriate antimicrobial therapy, is usually necessary. Recently, problems have arisen regarding infection with P. aeruginosa, which produces metallo-beta-lactamase (MBL) and is resistant to virtually all(More)
Recent advances permitting high-resolution ultrasonography have made ultrasonographic examination of nodular thyroid diseases an accessible examination for routine practice. However, diagnostic criteria for ultrasonographic examination of thyroid nodules are not surely established. To identify the optimal strategy for well standardized differential(More)
Two Japanese travelers from Bali were diagnosed with murine typhus in Japan during the same period. Although one had only mild illness, the other experienced liver and kidney dysfunction. Murine typhus may be missed not only in endemic areas around the world, but also in travelers, especially those returning from marine resorts in these areas.