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[Cryptococcosis in hematology practice]
Terapevticheskii Arkhiv
|January 18, 2014
Summary
Cryptococcosis primarily affects the central nervous system in patients with hemoblastoses. Early diagnosis and treatment of this fungal infection can lower mortality rates, especially when the underlying cancer is controlled.
Area of Science:
- Hematology
- Infectious Diseases
- Mycology
Background:
- Cryptococcosis is a serious fungal infection that can affect immunocompromised individuals, particularly those with hematological malignancies (hemoblastoses).
- Understanding the clinical presentation, diagnostic challenges, and treatment outcomes of cryptococcosis in this vulnerable population is crucial for improving patient care.
Purpose of the Study:
- To investigate the clinical manifestations of cryptococcosis in patients with hemoblastoses.
- To identify key diagnostic features for cryptococcosis in this patient group.
- To evaluate the treatment results and mortality associated with cryptococcosis in patients with hemoblastoses.
Main Methods:
- Retrospective analysis of 19 adult patients diagnosed with cryptococcosis between 2005 and 2011 at the Hematology Research Center.
- Diagnosis confirmed by isolation of Cryptococcus neoformans from blood cultures or detection of cryptococcal antigen in cerebrospinal fluid (CSF).
- Review of patient data including underlying hemoblastosis, risk factors, clinical presentation, diagnostic methods, and antifungal treatment regimens.
Main Results:
- Lymphoma and acute lymphoblastic leukemia were the most common hemoblastoses (31% and 26%, respectively).
- Major risk factors included prior cytostatic drug exposure (68%), immunosuppressive/glucocorticoid use (63%), and granulocytopenia (42%).
- Central nervous system involvement (meningitis/meningoencephalitis) was observed in 78% of patients; 26% died within 30 days, often due to concurrent tumor progression.
Conclusions:
- The central nervous system is the predominant site of cryptococcosis in patients with hemoblastoses, particularly lymphoid malignancies.
- Cryptococcal antigen testing in CSF is essential for diagnosing meningitis/meningoencephalitis in these patients.
- Timely diagnosis and treatment of cryptococcosis, alongside cancer control, can lead to lower mortality compared to other invasive mycoses.
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