Epidemiology of Zygomycosis : Analysis of National Data from Pathological Autopsy Cases in Japan : Data from 1989 to 2009

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  • Suzuki Yuhko
    Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, School of Medicine Both authors contributed equally to this work
  • Kume Hikaru
    Department of Pathology, Kitasato University, School of Medicine Both authors contributed equally to this work
  • Togano Tomiteru
    Department of Hematology, Kitasato University, School of Medicine
  • Ohto Hitoshi
    Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, School of Medicine

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タイトル別名
  • Epidemiology of Zygomycosis: Analysis of National Data from Pathological Autopsy Cases in Japan
  • Data from 1989 to 2009

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Background and Methods: To identify recent trends in the frequency of zygomycosis in autopsy cases, we conducted epidemiological analysis every four years from 1989 to 2009 using national data reported in the “Annual of Pathological Autopsy Cases in Japan.” Results: 153,615 cases were autopsied, of which 6622 (4.3%) were found to have had mycosis. Among these, there were 243 cases (3.7%) of zygomycosis, which was the fourth most predominant causative agent of mycoses among the monopathogen mycoses. Of the complicated mycoses, zygomycosis accounted for 56 cases. A total of 299 cases with zygomycoses were observed. The frequency of zygomycosis appeared to be generally stable over the twenty-year period from 1989 to 2009, at around 4% of autopsy cases having mycosis. Younger patients tended to have severe and complicated infections that were characteristic of zygomycosis, compared with non-zygomycosis. The pulmonary and gastrointestinal (GI) systems were the most common foci in our analysis, reflecting the severity of zygomycosis in these sites. Hematological disease was the most frequent underlying disease, but there was a peak of neonatal infections in 2009, which was the first time that this was observed in our studies. Conclusion: These results of the epidemiological analysis of autopsy cases with mycosis demonstrate that clinicians should promptly recognize and treat zygomycosis.

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