1Assistant Professor,
2Assistant Professor,
3Associate Professor,
Pleural effusion frequently presents a diagnostic problem to establish the aetiology inspite of good history taking, through clinical, radilological, full examination of aspirated fluid and pleural biopsy. Increased level of Adenosine deaminase activity has been found to be associated with tubercular pleural effusion.
To suggest estimating the activity of ADA as a diagnostic tool in cases of pleural effusion and compare its activity between tubercular and non tubercular origin.
Biochemical, cytological and microbiology studies was done by obtaining pleural fluid by thoracocentesis in 100 patients after excluding pleural effusion cases of malignancy, transudative effusion. 84 cases were tubercular and had high level of ADA in comparison to rest of 16 nontubercular cases. At level of 50 IU/L of ADA activity test had sensitivity of 97.6%, specificity 87.5%, positive predictive value 97.6%, negative predictive value 87.5%.
ADA level > 50IU/L in pleural effusion fluid can be important investigation in diagnosis of tubercular pleural effusion cases.
Tuberculosis, Pleural effusion, Adenosine deaminase