Damayanti, Nurlela and Yudhawati, Resti (2018) The comparison of pleural fluid TNF-α levels in tuberculous and nontuberculous pleural effusion. The comparison of pleural fluid TNF-α levels in tuberculous and nontuberculous pleural effusion, 67 (1). ISSN 0019-5707

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Abstract

Background: Tuberculous pleural effusion is the manifestation of Mycobacterium tuberculosis infection in pleura. With existing means, it is difficult to establish the diagnosis of tuberculosis (TB) and non-TB pleural effusions; thus, establishing the diagnosis of TB pleural effusion and non-TB pleural effusion is still a clinical problem. Tumour necrosis factor alpha (TNFα) is a potent inflammatory cytokine that plays an important role in immunity to Mycobacterium tuberculosis infections, this level of cytokine increases in pleural effusion due to tuberculosis. Objective: To compare the TNF-α level of pleural fluid in TB and non-TB pleural effusion. Methods: The samples in this study that fulfilled the inclusion criteria were patients with non-TB pleural tuberculosis effusion in the inpatient ward in Pulmonology Unit Dr. Soetomo General Hospital Surabaya, male and female, aged between 15 and 60 years. The data is divided into two: primary data and secondary data of patients who fulfilled inclusion and exclusion criteria. The data with normal distribution was analyzed using independent t2 test and if the data distribution is abnormal, it was analyzed using Fisher's exact test. Results: There were 22 subjects divided into 2 groups that were 11 patients with TB pleural effusion and 11 patients with non-TB pleural effusion. The TNF-α level of pleural fluid in TB pleural effusion was 25.43 ± 13.55 pg/mL. The TNF-α level of pleural fluid in non-TB was 5.98 ± 1.89 pg/mL. The serum TNF-α level in TB pleural effusion was 83.22 ± 88.15 pg/mL. The serum TNF-α level in non-TB was 68.54 ± 57.88 pg/mL. There was higher level of TNF-α pleural fluid in TB pleural effusion than in non-TB pleural effusion (25.43 ± 13.55 pg/mL vs 5.98 ± 1.89 pg/mL, p value <0.05). The serum TNF-α level in patients with TB pleural effusion was higher than TNF-α serum level of non-TB pleural effusion. There was no significant difference between TNF-α level of pleural fluid and serum TNF-α levels in the TB pleural effusion group (p value >0.05). Conclusion: The TNF-α level of pleural fluid in TB pleural effusion was higher than non-TB pleural effusions and there was no significant difference between serum TNF-α levels in the TB pleural effusion group and in the non-TB pleural effusion group.

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