Abstract:
STUDY OBJECTIVES:To determine if soluble leukocyte selectin (sL-selectin) levels in serum and pleural fluid (PF) are an inflammatory marker that differentiates pleural effusion transudates from exudates. DESIGN:sL-selectin PF and serum levels were measured in consecutive patients and compared to established criteria. SETTING:A tertiary-care military medical center. PATIENTS:One hundred twenty patients undergoing diagnostic or therapeutic thoracentesis. INTERVENTIONS:PF and serum samples were collected during thoracentesis and analyzed separately for sL-selectin levels. Results were compared with clinical diagnosis and established PF criteria including the criteria of Light et al, cholesterol ratio, total bilirubin ratio, and albumin gradient. MEASUREMENTS AND RESULTS:sL-selectin levels in PF and serum were determined in 109 patients. By clinical diagnosis, mean +/- SD PF sL-selectin levels were 200.2 +/- 124.3 ng/mL in transudates and 496.8 +/- 379.2 ng/mL in exudates (p < 0.001). By the criteria of Light et al, mean PF sL-selectin levels were 195.7 +/- 105.2 ng/mL in transudates and 448.2 +/- 367.6 ng/mL in exudates (p < 0.001). Mean sL-selectin PF to serum ratios were 0.31 +/- 0.17 in transudates and 0.72 +/- 0.31 in exudates (p < 0.001) by clinical criteria, and 0.31 +/- 0.18 in transudates and 0.64 +/- 0.33 in exudates (p < 0.001) by the criteria of Light et al. No significant difference was noted with serum sL-selectin levels between groups. CONCLUSIONS:sL-selectin is an inflammatory marker that differentiates transudates from exudates in pleural effusions and is a sensitive indicator for PF analysis.
journal_name
Chestjournal_title
Chestauthors
Horvath LL,Gallup RA,Worley BD,Merrill GA,Morris MJdoi
10.1378/chest.120.2.362subject
Has Abstractpub_date
2001-08-01 00:00:00pages
362-8issue
2eissn
0012-3692issn
1931-3543pii
S0012-3692(15)51439-6journal_volume
120pub_type
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