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The Comparison of Pleural Fluid TNF-α and IL-10 Levels with ADA in Tuberculous Pleural Effusion

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Objectives: Our aim was to evaluate the diagnostic value of pleural fluid TNF-α and IL-10 levels in tuberculous pleural effusion (TPE) and compare with that of ADA.

Material and Methods: 70 patients were enrolled in the study. Fourteen patients had TPE, 19 patients malignant pleural effusion (MPE), 18 patients complicated parapneumonic effusion (PPE) and 19 patients had transudative pleural effusion.

Results: The pleural fluid TNF-α levels were significantly higher in TPE than MPE and transudates. There was no significant difference in pleural fluid IL-10 levels between groups. Among exudative effusions, TNF-α was significantly higher in tuberculous group, while there was no difference in IL-10 levels between tuberculous and nontuberculous group. The pleural fluid ADA levels were significantly higher in TPE than other groups. ROC analysis was performed and the optimal cut-off points of TNF-α and ADA were 13.3 pg/mL and 41.5 U/L, respectively. The sensitivity of TNF-α was 71% and specificity was 66% in the diagnosis of TPE. In contrast, the sensitivity and specifity of ADA was 78% and 86% respectively.

Conclusion: TNF-α is a useful marker in the diagnosis of TPE and IL-10 has no diagnostic value. However, the sensitivity and specifity of TNF-α is lower than that of ADA.
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Keywords: IL-10; TNF-α; Tuberculosis; pleural effusion

Document Type: Research Article

Publication date: 2010-07-01

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