Role of Adenosine Deaminase in Differentiating Tuberculous and Non-tuberculous Pleural Effusions
Author Information
Author(s): Gupta Bharat Kumar, Bharat Vinay, Bandyopadhyay Debapriya
Primary Institution: Subharti Medical College, S. V. S. University, Meerut, India
Hypothesis
The study aims to determine the role of adenosine deaminase (ADA) levels in differentiating tuberculous from non-tuberculous exudative pleural effusions.
Conclusion
ADA levels in non-tuberculous exudative pleural effusions rarely exceeded the cut-off for tuberculous disease, indicating that ADA can effectively differentiate between the two.
Supporting Evidence
- ADA levels were significantly higher in tuberculous exudative pleural effusions compared to non-tuberculous.
- Only one sample in the non-tuberculous group exceeded the ADA cut-off of 40 U/L.
- The negative predictive value of ADA for non-tuberculous etiology was 97.5%.
Takeaway
This study shows that if the ADA level in pleural fluid is low, it likely means the effusion is not due to tuberculosis.
Methodology
Ninety-six lymphocytic pleural fluid samples were analyzed, divided into tuberculous (n=56) and non-tuberculous (n=40) groups, with ADA levels measured in all cases.
Limitations
The study may not account for all possible causes of lymphocytic pleural effusions.
Participant Demographics
Participants ranged in age from 12 to 76 years, with a male to female ratio of 3:1.
Statistical Information
P-Value
0.0007
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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