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Sequencing of Bacterial Microflora in Peripheral Blood: our Experience with HIV-infected Patients
Published on: June 11, 2011
[Persistent neutrophilic meningitis in a patient with the acquired immunodeficiency syndrome]
S F Marinho1, V H Paciullo, M O Fonseca
1Instituto de Infectologia Emilio Ribas, São Paulo, Brasil.
Abstract:
Persistent neutrophilic meningitis is rarely found and it is characterized by predominance of the number of neutrophils in samples of C SF (cerebrospinal fluid) from the patient after seven days of treatment. The above patient in HIV positive; he has developed fever and mental disorder for 4 months and has presented neutrophilic pleocytosis in analysis of CSF for more than 5 months. Since the beginning or the treatment he has taken antituberculous drugs and corticosteroids. For 3 months, the serologic evaluation, smears and cultures were negative. On the 60th day in hospital, the investigation of acid-fast bacilli in CSF was positive and culture confirmed the presence of Mycobacterium tuberculosis resistant to isoniazid. Several factors that may have caused this uncommon development were discussed: the disturbance of cell-mediated immunity, mainly in release of IL 8 and TNF, the simultaneous use of medicines that could alter the CSF concentration of antituberculous drugs, and the increasing number of multiresistant strains.
Insights
Persistent neutrophilic meningitis in an HIV-positive patient was linked to drug-resistant Mycobacterium tuberculosis. This rare condition highlights challenges in diagnosing and treating complex central nervous system infections.
Area of Science:
- Infectious Diseases
- Neurology
- Immunology
Background:
- Persistent neutrophilic meningitis is a rare clinical presentation characterized by a neutrophil predominance in cerebrospinal fluid (CSF) after seven days of treatment.
- The case involves an HIV-positive patient presenting with prolonged fever and mental disorder, exhibiting neutrophilic pleocytosis in CSF for over five months.
Observation:
- The patient received antituberculous drugs and corticosteroids, with initial negative serology, smears, and cultures for three months.
- On day 60, CSF analysis revealed acid-fast bacilli, and culture confirmed Mycobacterium tuberculosis resistant to isoniazid.
Findings:
- The study identifies Mycobacterium tuberculosis resistant to isoniazid as the cause of persistent neutrophilic meningitis in this immunocompromised patient.
- Factors contributing to this uncommon presentation include disturbed cell-mediated immunity (IL-8, TNF release), potential drug interactions altering CSF drug concentrations, and the rise of multidrug-resistant strains.
Implications:
- This case underscores the importance of considering drug-resistant tuberculosis in persistent meningitis, especially in HIV-positive individuals.
- It highlights the need for careful monitoring and reassessment of treatment in complex CNS infections.
- Understanding immune dysregulation and drug interactions is crucial for managing such challenging cases.
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