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Fever of unknown origin in older persons
Dean C Norman1, Megan Bernadette Wong, Thomas T Yoshikawa
1University of California, Los Angeles David Geffen School of Medicine, Los Angeles, CA, USA. dean.norman@va.gov
Infectious Disease Clinics of North America
|December 7, 2007
Summary
Fever of unknown origin (FUO) in older adults presents unique challenges due to age-related immune changes and comorbidities. Prompt diagnosis and treatment are crucial for better outcomes in the elderly population.
Area of Science:
- Geriatrics
- Infectious Diseases
- Internal Medicine
Background:
- Infectious diseases in the aged are linked to increased morbidity and mortality.
- Age-related biological changes can impair host defenses and infection response.
- Comorbidities in older individuals, particularly the frail, can further compromise immune function.
Purpose of the Study:
- To highlight the distinct characteristics of fever of unknown origin (FUO) in older adults compared to younger populations.
- To emphasize the importance of identifying the specific causes of FUO in the elderly.
- To underscore the treatable nature of many FUO etiologies in this demographic.
Main Methods:
- Review of existing literature on FUO in geriatric populations.
- Analysis of age-specific differences in infection presentation and etiology.
- Discussion of diagnostic challenges and therapeutic considerations for FUO in the elderly.
Main Results:
- Fever of unknown origin (FUO) in older adults often has different underlying causes than in younger individuals.
- Infections in the elderly may manifest with atypical symptoms, complicating early diagnosis.
- The presence of comorbidities significantly impacts the presentation and management of FUO in older persons.
Conclusions:
- Fever of unknown origin (FUO) in the elderly requires a distinct diagnostic approach due to differing etiologies and altered host defenses.
- Aggressive investigation into the causes of FUO in older adults is essential for timely and effective treatment.
- Understanding these age-specific differences can lead to improved patient outcomes and reduced mortality associated with infections in the aged.
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