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Indian Journal of Pathology and Microbiology
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Year : 2007  |  Volume : 50  |  Issue : 2  |  Page : 415-9

Pleural fluid analysis with traditional and additional parameters.


Department of Pathology, B.J. Medical College, Pune, Maharashtra

Correspondence Address:
Meenal Vitthal Jadhav
Department of Pathology, B.J. Medical College, Pune, Maharashtra

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Source of Support: None, Conflict of Interest: None


PMID: 17883096

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36 patients with pleural effusion were studied clinically with pertinent investigations and pleural fluid analysis. The pleural fluid analysis was done with routine protocol including study of traditional parameters like protein and cell count and additional parameters like pleural LDH, GOT(AST) and their ratio with serum LDH and GOT respectively. The utility of these parameters was studied critically. Amongst the isolated parameters cell count enjoyed highest (100%) specificity and positive predictive value. LDH ratio had highest (79.1%) sensitivity. Pleural LDH showed highest (52.6%) negative predictive value and diagnostic accuracy (69.4%). Amongst the combination of two parameters protein with LDH ratio had highest (87.5%) sensitivity, cell count with LDH ratio showed highest specificity (100%), positive predictive value (75%) and diagnostic accuracy (88.9%). Amongst the combination of three parameters pleural protein and cell count with LDH ratio and GOT ratio respectively enjoyed best sensitivity (87.5%), specificity and positive predictive value (100%), negative predictive value (80%) and diagnostic accuracy (90.6%). Similarly competent were the combinations offour parameters namely p rotein and cell count with LDH and its ratio and GOT and its ratio respectively. Combination of all parameters exhibited similar degree of utility.


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