To compare CSF adenosine deaminase levels and CSF-PCR for tuberculous meningitis

Autor: S. K. Arora, F. Chacko, Kulwinder Singh, S. Parbhakar, Vivek Lal, Sanjeev Sharma, S. V. Rana
Rok vydání: 2010
Předmět:
Zdroj: Clinical Neurology and Neurosurgery. 112:424-430
ISSN: 0303-8467
Popis: This study was planned to compare the adenosine deaminase (ADA) levels and polymerase chain reaction (PCR) in cerebrospinal fluid (CSF) as a rapid method to diagnose tuberculosis meningitis (TBM). Fifty-four adult patients with suspected TBM and 37 controls were included in this study. The median ADA level was 21U/L of most likely TBM, 14U/L of unconfirmed TBM and 5U/L of controls. PCR for Mycobacterium tuberculosis was positive in 12 out of 27 most likely TBM cases, 5 out of 27 unconfirmed TBM cases and 3 out of 37 controls. Using a cut off level of >10U/L, CSF-ADA had a sensitivity of 92.5% and specificity of 97% for the diagnosis of TBM. PCR for M. tuberculosis had a sensitivity of 44.5% and specificity 92% in the most likely TBM cases. This study shows that CSF-ADA is a more sensitive indicator than PCR for the diagnosis of M. tuberculosis.
Databáze: OpenAIRE