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Keskitalo E, Varis L, Bloigu R, Kaarteenaho R. Bronchoalveolar cell differential count and the number of asbestos bodies correlate with survival in patients with asbestosis. Occup Environ Med 2019; 76:765-771. [DOI: 10.1136/oemed-2018-105606] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 06/12/2019] [Accepted: 06/30/2019] [Indexed: 11/04/2022]
Abstract
ObjectivesTo determine cell differential counts and the number of asbestos bodies (ABs) in bronchoalveolar lavage (BAL) fluid obtained from patients with asbestosis, and to correlate the results with their survival.MethodsThe BAL cell differential counts and ABs from 91 patients with asbestosis were determined. The BAL cell differential counts were analysed in relation to smoking status. BAL cell differential counts and the number of ABs were correlated with the patients’ survivals.ResultsA neutrophilic cell pattern was observed independently of smoking habits with both Papanicolau (8.4%) and May-Grunwald-Giemsa (6.5%) staining. Smoking and a high number of ABs (>2 AB/mL) were associated with high total cell counts and high macrophage and low lymphocyte differential counts. The median survival of the patients was 131.8 months. Shortened survival was associated with high numbers of ABs (78 vs 165 months; p=0.042) and low lymphocyte (77 vs 179 months; p=0.005), high neutrophil (102 vs 180 months; p=0.016) and high eosinophil (104 vs170 months; p=0.007) differential counts.ConclusionA neutrophilic cell pattern was evident in BAL from patients with asbestosis. Smoking and ABs both affected the total cell count and the macrophage and lymphocyte differential counts. Several BAL parameters associated with patient survival, suggesting that BAL cell count analyses could be used in the estimation of the prognosis of patients with asbestosis.
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Kokkinis FP, Bouros D, Hadjistavrou K, Ulmeanu R, Serbescu A, Alexopoulos EC. Bronchoalveolar lavage fluid cellular profile in workers exposed to chrysotile asbestos. Toxicol Ind Health 2011; 27:849-56. [DOI: 10.1177/0748233711399315] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The cellular profile of bronchoalveolar lavage fluid (BALF) in asbestos-exposed population remains controversial. We, therefore, aimed to investigate BALF in apparently healthy individuals that were exposed in asbestos-related work for a long period of time. Participants were selected among employees of a car brakes and clutches factory that used chrysotile asbestos. Selection criteria were an employment history of ≥15 years and the absence of severe respiratory disease. The total number and type of BALF cells, the existence of dust cells, iron-laden macrophages and asbestos bodies were assessed. Thirty-nine workers (25 men), with a mean age of 46.2 ± 4.2 years and a mean employment time of 23.5 ± 4 years, participated. Asbestos bodies were observed in 14 out of 39 (36%) specimens, dust cells in 37 and iron-laden macrophages in all. Those with asbestos bodies had at least 3 times higher probability to have lymphocytosis (lymphocytes > 11%: 64% vs 28%, p = 0.027) and had an increased percentage of iron-laden macrophages compared to those without asbestos bodies (median values: 42% vs 13%, p = 0.08). Smokers (36%) had less lymphocytes compared to non and ex-smokers (median values: 6% vs. 13%, p = 0.002), and iron-laden macrophages count had a positive relation (r = 0.31, p = 0.05) to lymphocyte count. Asbestos-exposed asymptomatic individuals with the presence of asbestos bodies in the BALF are more likely to have lymphocytic alveolitis while concurrent dust exposure and smoking habits hold a significant role.
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Affiliation(s)
| | - Demosthenes Bouros
- Department of Pneumonology, Medical School, Democritus University of Thrace, Greece
| | | | | | | | - Evangelos C Alexopoulos
- Postgraduate Course Stress Management and Health Promotion, School of Medicine, University of Athens, Greece,
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SOCIETY BT, COMMITTEE SO. The diagnosis, assessment and treatment of diffuse parenchymal lung disease in adults. Introduction. Thorax 1999; 54 Suppl 1:S1-14. [PMID: 11006787 PMCID: PMC1765921 DOI: 10.1136/thx.54.suppl_1.s1] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Hermans C, Bernard A. Lung epithelium-specific proteins: characteristics and potential applications as markers. Am J Respir Crit Care Med 1999; 159:646-78. [PMID: 9927386 DOI: 10.1164/ajrccm.159.2.9806064] [Citation(s) in RCA: 325] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- C Hermans
- Industrial Toxicology and Occupational Medicine Unit, Faculty of Medicine, Catholic University of Louvain, Brussels, Belgium.
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