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Treatment recommendations for non-HIV associated cryptococcal meningoencephalitis including management of
Kenneth Ssebambulidde1, Seher H Anjum1, Jessica C Hargarten1
1Translational Mycology Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States.
Abstract:
Cryptococcal meningoencephalitis (CM) continues to cause major morbidity and mortality in a range of patients such as those immunosuppressed from HIV and with biologic immunosuppressants, including treatments of autoimmunity, malignancies, and conditioning regimens for transplantation. It is currently the most common cause of non-viral meningitis in the United States. Infections in previously healthy patients also develop with autoantibodies to granulocyte-macrophage colony stimulating factor or with monogenetic defects. In all populations, mortality and significant long-term morbidity occur in 30-50% despite therapy, and immune reconstitution and post-infectious inflammatory response syndromes complicate management. To help with these difficult cases, we present here a practical tutorial of the care of a range of patients with CM in the absence of HIV/AIDS.
Insights
Cryptococcal meningoencephalitis (CM) is a common meningitis causing significant mortality and morbidity. This tutorial focuses on managing CM in non-HIV patients, addressing complex cases despite current therapies.
Area of Science:
- Infectious Diseases
- Immunology
- Neurology
Background:
- Cryptococcal meningoencephalitis (CM) is a leading cause of non-viral meningitis in the US, particularly affecting immunocompromised individuals.
- High mortality (30-50%) and long-term morbidity persist despite treatment, with immune reconstitution and inflammatory syndromes complicating patient management.
- CM also affects immunocompetent individuals, including those with autoantibodies to granulocyte-macrophage colony-stimulating factor or monogenetic defects.
Purpose of the Study:
- To provide a practical tutorial on managing cryptococcal meningoencephalitis (CM) in patients without HIV/AIDS.
- To address the complexities of CM care in diverse patient populations, including those with autoimmune diseases, malignancies, and post-transplant conditioning.
- To offer guidance for managing CM in previously healthy individuals with specific immune defects.
Main Methods:
- This tutorial synthesizes current knowledge and clinical best practices for CM management.
- It focuses on practical approaches to diagnosis and treatment tailored to non-HIV populations.
- Case examples and management algorithms are implicitly suggested for clarity.
Main Results:
- Cryptococcal meningoencephalitis presents significant challenges in immunocompromised and immunocompetent hosts.
- Mortality and morbidity rates remain high, underscoring the need for optimized therapeutic strategies.
- Management is complicated by immune reconstitution inflammatory syndrome (IRIS) and underlying immune deficiencies.
Conclusions:
- Effective management of cryptococcal meningoencephalitis requires tailored approaches, especially in non-HIV populations.
- Understanding specific patient risk factors and immune status is crucial for successful treatment outcomes.
- This tutorial aims to improve clinical care and reduce the burden of CM in diverse patient groups.
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