Naoto Hosokawa

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OBJECTIVES The aims of this study were to describe the epidemiological features and clinical characteristics of infective endocarditis (IE) at a tertiary-care hospital in Japan and to identify the factors associated with in-hospital mortality. METHODS A retrospective observational study was conducted at a 925-bed tertiary-care teaching hospital in Japan.(More)
The seroprevalence of Bartonella henselae among veterinary professionals in Japan was investigated by means of an immunoperoxidase (IP) test that used protein A-horseradish peroxidase conjugate. Sera were obtained from 233 veterinary professionals in the Tokyo and Chiba areas. As negative control group, sera from 155 healthy individuals (all medical(More)
To examine whether hepatitis C virus (HCV) infection still occurs in haemodialysis units even after a decrease in the number of blood transfusions and in those contaminated with HCV, we tested anti-HCV antibodies and HCV RNA in 142 patients from Japanese haemodialysis units, and examined the serial prevalence of anti-HCV antibodies in 86 patients from 1992(More)
We report herein on a case of Plasmodium malariae malaria with more than a 4-month incubation period. A 35-year-old Japanese man who first presented to our clinic with fever and history of travel to Papua New Guinea was suspected of having Plasmodium vivax malaria based on peripheral smear results. We admitted him and initiated treatment with mefloquine.(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.
OBJECTIVES To investigate the characteristics of Streptococcus anginosus group (SAG) bacteremia in recent years, we conducted a retrospective cohort study and compared its findings with the data from previous studies. METHODS All patients with positive blood cultures from May 2005 to September 2014 in a tertiary care center with 925 beds were included. (More)
BACKGROUND The infectious diseases (ID) consultation service is a new clinical entity in Japan. We examined the impact of ID consultation on the diagnosis of infective endocarditis (IE) at a large teaching hospital in Japan. METHODS Routine consultation with an ID service for cases of positive blood culture was implemented at Kameda Medical Center in(More)
To identify our role and the customers' satisfaction, the on-call consultation service records of the Department of Clinical Pathology, Nihon University School of Medicine, Itabashi Hospital (NUIH), were analyzed. Between 1995 and 1998, 1,789 consultation services were recorded, and approximately 40% were from physicians, and 50% were from medical(More)
The objective of this study was to investigate the relationship between serum mitochondrial creatine kinase(mCK) and rotavirus gastroenteritis in pediatric patients. Stool and serum specimens were simultaneously collected from 45 patients(25 males and 20 females) with suspected rotavirus gastroenteritis from January to December 1998. Stool specimens were(More)
We report an extremely rare case of urosepsis caused by Globicatella sanguinis and Corynebacterium riegelii coinfection in a 94-year-old Japanese man with nephrolithiasis. Prompt identification of this coinfection is important so that effective antimicrobial coverage can be initiated.