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Bacterial meningitis in aging adults
1Department of Medicine, St. Mary Medical Center, Long Beach, California 90813, USA. cchoi@chw.edu
Abstract:
Bacterial meningitis remains a highly lethal disease in older adults, with mortality rates averaging >20% despite modern antibiotic therapy. In this population, more variable presentations are seen, with fewer patients manifesting fever, neck stiffness, and headache than among younger adults. In addition, many older adults (aged > or =60 years) may have other underlying diseases causing symptoms that may be confused with those of meningitis. The spectrum of etiologic bacterial organisms is more broad than that for a younger population, in part because of the increased frequency of severe underlying diseases and in part as a result of immunosenescence. Therapy is complicated by both the range of possible causative organisms and the increasing antibiotic resistance manifested by some. These difficulties, contrasted with the success of vaccination in the pediatric population, highlight the need for improved preventive strategies for older adults. This review outlines some key clinical points in the management of bacterial meningitis in the older adult.
Insights
Bacterial meningitis is deadly for older adults, often presenting atypically. Improved prevention strategies are crucial due to broad-spectrum pathogens and antibiotic resistance.
Area of Science:
- Geriatrics
- Infectious Diseases
- Clinical Medicine
Background:
- Bacterial meningitis has high mortality (>20%) in older adults, even with antibiotics.
- Older adults present atypically, with fewer classic symptoms like fever, neck stiffness, and headache.
- Underlying conditions and immunosenescence complicate diagnosis and broaden the range of causative organisms.
Purpose of the Study:
- To review key clinical points in managing bacterial meningitis in older adults.
- To highlight challenges in diagnosis and treatment for this demographic.
- To underscore the need for enhanced preventive strategies.
Main Methods:
- This is a review article.
- It synthesizes current knowledge on bacterial meningitis in the elderly.
- Clinical management strategies are discussed.
Main Results:
- Older adults exhibit variable clinical presentations, differing from younger populations.
- A broader spectrum of bacteria, including antibiotic-resistant strains, causes meningitis in this age group.
- Underlying diseases and immunosenescence contribute to diagnostic and therapeutic complexities.
Conclusions:
- Bacterial meningitis management in older adults is challenging due to atypical presentations, diverse pathogens, and antibiotic resistance.
- The success of pediatric vaccination emphasizes the urgent need for similar preventive measures in the elderly.
- Effective clinical management requires awareness of these specific challenges.