The Open Respiratory Medicine Journal




ISSN: 1874-3064 ― Volume 13, 2019

Pleural Cholesterol to the Diagnosis of Exudative Effusion



Rogério Rufino*, Bruna L. Marques, Renato de Lima Azambuja, Thiago Mafort, José G. Pugliese, Cláudia Henrique da Costa
State University of Rio de Janeiro, Pulmonology Department, Rio de Janeiro, 20551-030, Brazil

Abstract

Introduction:

Diagnostic approaches to patients with a pleural effusion must be precise because many procedures depend on the nature of the fluid in the effusion. To date, no biochemical test is considered an appropriate alternative to Light’s criteria. This study compared the absolute pleural cholesterol (PC) level and the pleural cholesterol/serum cholesterol (PC/SC) ratio with Light’s criteria to determine exudative pleural effusions.

Materials and Methodology:

This study was a case series of 100 consecutive patients with pleural effusions. The clinical parameters that were used to diagnosis an exudative effusion included the cholesterol level, a pleural cholesterol level ≥ 50 mg/dL, a pleural/serum ratio ≥ 0.4, and Light’s criteria. The sensitivity, specificity, and positive and negative predictive values of each test for the diagnosis of an exudative effusion were assessed.

Results:

A total of 79 patients were definitively diagnosed with an exudative effusion and were included in the trial and analyzed. The mean PC level in the exudates was 90.39 mg/dL. The PC levels demonstrated a sensitivity of 97.22%, a specificity of 85.71%, a positive predictive value of 98.59% and a negative predictive value of 75%. The PC/SC ratio demonstrated a sensitivity of 81.48%, a specificity of 57.14%, a positive predictive value of 93.61% and a negative predictive value of 28.57%.

Conclusion:

The pleural cholesterol dosage level and the pleural/serum cholesterol ratio can be utilized as unique biomarkers to identify an exudative effusion and replace Light’s criteria.

Keywords: : Cholesterol, exudative effusion, pleural effusion..


Article Information


Identifiers and Pagination:

Year: 2014
Volume: 8
First Page: 14
Last Page: 17
Publisher Id: TORMJ-8-14
DOI: 10.2174/1874306401408010014

Article History:

Received Date: 30/1/2014
Revision Received Date: 11/3/2014
Acceptance Date: 11/3/2014
Electronic publication date: 4/4/2014
Collection year: 2014

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© Rufino et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at Avenida 28 de Setembro, 77 – Vila Isabel – Rio de Janeiro, Brazil; Fax: 55.21.2868-8248; E-mail: rrufino.uerj@gmail.com


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