Low CD4 Count and Coma Predict Cryptococcal Meningitis in Tanzania
Author Information
Author(s): Kisenge Peter R, Hawkins Alexander T, Maro Venance P, Mchele John P D, Swai Ndealilia S, Mueller Andreas, Houpt Eric R
Primary Institution: Kilimanjaro Christian Medical Centre
Hypothesis
Can clinical features like low CD4 count and coma predict the diagnosis of cryptococcal meningitis in HIV-infected patients?
Conclusion
Cryptococcal meningitis is common among Tanzanian HIV inpatients presenting with headache or altered mental status, and clinical features alone are not reliable for diagnosis or prognosis.
Supporting Evidence
- Cryptococcal meningitis was diagnosed in 24 (17%) patients by India ink stain and in 40 (29%) by latex agglutination.
- CD4 count < 100/μl provided the highest sensitivity for diagnosis (93%).
- 50% of cryptococcal meningitis patients survived to discharge.
Takeaway
This study found that many people with HIV in Tanzania get a serious brain infection called cryptococcal meningitis, especially if they have low immune cells and are very confused.
Methodology
The study evaluated 149 HIV-infected adult inpatients for clinical features, CD4 count, and cryptococcal infection using CSF assays.
Potential Biases
Potential bias due to the exclusion of patients who could not undergo lumbar puncture.
Limitations
The study was limited by the lack of diagnostic reagents and the reliance on clinical features for diagnosis.
Participant Demographics
HIV-infected adults aged 13-65 from the Kilimanjaro Christian Medical Centre.
Statistical Information
P-Value
0.03
Confidence Interval
95% CI 0.79 – 0.98
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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