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Current fever of unknown origin 1982-1992
1Department of Internal Medicine, Kitasato University, School of Medicine, Kanagawa.
Internal Medicine (Tokyo, Japan)
|February 1, 1994
Summary
Fever of unknown origin (FUO) is a clinical challenge. Collagen-vascular disease now most commonly causes FUO, shifting from infection, according to a retrospective study of 153 patients.
Area of Science:
- Internal Medicine
- Clinical Investigation
- Rheumatology
Background:
- Fever of unknown origin (FUO) presents a persistent clinical challenge since its initial definition.
- Understanding the evolving causes of FUO is crucial for accurate diagnosis and patient management.
Purpose of the Study:
- To investigate the current spectrum of diseases causing FUO in Japan.
- To compare contemporary FUO causes with historical data and identify shifts in disease prevalence.
Main Methods:
- Retrospective analysis of 153 patients meeting classic FUO criteria.
- Comparison of findings with previous studies, including the institution's own prior research (1971-1982).
- Analysis of FUO cases specifically in elderly patients.
Main Results:
- Collagen-vascular diseases have emerged as the leading cause of FUO.
- Infection, previously the most common cause, has been supplanted by collagen-vascular diseases.
- A notable variation in the spectrum of FUO etiologies was observed compared to historical data.
Conclusions:
- The etiological landscape of FUO has shifted, with collagen-vascular diseases now predominant.
- Contemporary FUO cases in Japan reflect changes in disease patterns compared to earlier decades.
- This study highlights the dynamic nature of FUO and the need for updated diagnostic considerations.