Association Between Blood Eosinophils and Mortality in Critically Ill Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Retrospective Cohort Study

References

• Hastie AT, Martinez FJ, Curtis JL, et al. Association of sputum and blood eosinophil concentrations with clinical measures of COPD severity: an analysis of the SPIROMICS cohort. Lancet Respir Med. 2017;5(12):956–967. doi:10.1016/S2213-2600(17)30432-0
   PubMed Web of Science ®Google Scholar
• Kerkhof M, Sonnappa S, Postma DS, et al. Blood eosinophil count and exacerbation risk in patients with COPD. Eur Respir J. 2017;50:1.
   Web of Science ®Google Scholar
• Vedel-Krogh S, Nielsen SF, Lange P, Vestbo J, Nordestgaard BG. Blood eosinophils and exacerbations in chronic obstructive pulmonary disease. the copenhagen general population study. Am J Respir Crit Care Med. 2016;193(9):965–974. doi:10.1164/rccm.201509-1869OC
   PubMed Web of Science ®Google Scholar
• Pascoe S, Locantore N, Dransfield MT, Barnes NC, Pavord ID. Blood eosinophil counts, exacerbations, and response to the addition of inhaled fluticasone furoate to vilanterol in patients with chronic obstructive pulmonary disease: a secondary analysis of data from two parallel randomised controlled trials. Lancet Respir Med. 2015;3(6):435–442. doi:10.1016/S2213-2600(15)00106-X
   PubMed Web of Science ®Google Scholar
• Pavord ID, Lettis S, Locantore N, et al. Blood eosinophils and inhaled corticosteroid/long-acting β-2 agonist efficacy in COPD. Thorax. 2016;71(2):118–125. doi:10.1136/thoraxjnl-2015-207021
   PubMed Web of Science ®Google Scholar
• Suissa S, Dell’Aniello S, Ernst P. Comparative effectiveness of LABA-ICS versus LAMA as initial treatment in COPD targeted by blood eosinophils: a population-based cohort study. Lancet Respir Med. 2018;6(11):855–862. doi:10.1016/S2213-2600(18)30368-0
   PubMed Web of Science ®Google Scholar
• Cheng SL. Blood eosinophils and inhaled corticosteroids in patients with COPD: systematic review and meta-analysis. Int J Chron Obstruct Pulmon Dis. 2018;13:2775–2784. doi:10.2147/COPD.S175017
   PubMed Web of Science ®Google Scholar
• Wu CW, Lan CC, Hsieh PC, Tzeng IS, Wu YK. Role of peripheral eosinophilia in acute exacerbation of chronic obstructive pulmonary disease. World j Clin Cases. 2020;8(13):2727–2737. doi:10.12998/wjcc.v8.i13.2727
   PubMed Web of Science ®Google Scholar
• Wu HX, Zhuo KQ, Cheng DY. Peripheral blood eosinophil as a biomarker in outcomes of acute exacerbation of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2019;14:3003–3015. doi:10.2147/COPD.S226783
   PubMed Web of Science ®Google Scholar
• Prins HJ, Duijkers R, Lutter R, et al. Blood eosinophilia as a marker of early and late treatment failure in severe acute exacerbations of COPD. Respir Med. 2017;131:118–124. doi:10.1016/j.rmed.2017.07.064
   PubMed Web of Science ®Google Scholar
• Choi J, Oh JY, Lee YS, et al. The association between blood eosinophil percent and bacterial infection in acute exacerbation of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2019;14:953–959. doi:10.2147/COPD.S197361
   PubMed Web of Science ®Google Scholar
• Sivapalan P, Lapperre TS, Janner J, et al. Eosinophil-guided corticosteroid therapy in patients admitted to hospital with COPD exacerbation (CORTICO-COP): a multicentre, randomised, controlled, open-label, non-inferiority trial. Lancet Respir Med. 2019;7(8):699–709. doi:10.1016/S2213-2600(19)30176-6
   PubMed Web of Science ®Google Scholar
• MIMIC-III, a freely accessible critical care database. Johnson AEW, Pollard TJ, Shen L. Scientific Data (2016). DOI: 10.1038/sdata.2016.35. IEEE Transactions on Bio-Medical Engineering 64 1914–1923
   PubMedGoogle Scholar
• Wedzicha JA, Seemungal TA. COPD exacerbations: defining their cause and prevention. Lancet. 2007;370(9589):786–796. doi:10.1016/S0140-6736(07)61382-8
   PubMed Web of Science ®Google Scholar
• Holland M, Alkhalil M, Chandromouli S, Janjua A, Babores M. Eosinopenia as a marker of mortality and length of stay in patients admitted with exacerbations of chronic obstructive pulmonary disease. Respirology. 2010;15(1):165–167. doi:10.1111/j.1440-1843.2009.01651.x
   PubMed Web of Science ®Google Scholar
• Rahimi-Rad MH, Asgari B, Hosseinzadeh N, Eishi A. Eosinopenia as a marker of outcome in acute exacerbations of chronic obstructive pulmonary disease. Maedica. 2015;10(1):10–13.
   PubMedGoogle Scholar
• Saltürk C, Karakurt Z, Adiguzel N, et al. Does eosinophilic COPD exacerbation have a better patient outcome than non-eosinophilic in the intensive care unit? Int J Chron Obstruct Pulmon Dis. 2015;10:1837–1846. doi:10.2147/COPD.S88058
   PubMed Web of Science ®Google Scholar
• Zhou A, Zhou Z, Zhao Y, Chen P. The recent advances of phenotypes in acute exacerbations of COPD. Int J Chron Obstruct Pulmon Dis. 2017;12:1009–1018. doi:10.2147/COPD.S128604
   PubMed Web of Science ®Google Scholar
• Gao P, Zhang J, He X, Hao Y, Wang K, Gibson PG. Sputum inflammatory cell-based classification of patients with acute exacerbation of chronic obstructive pulmonary disease. PLoS One. 2013;8(5):e57678.
   PubMed Web of Science ®Google Scholar
• Barnes PJ. Inflammatory mechanisms in patients with chronic obstructive pulmonary disease. J Allergy Clin Immunol. 2016;138(1):16–27. doi:10.1016/j.jaci.2016.05.011
   PubMed Web of Science ®Google Scholar
• Toraldo DM, Conte L. Influence of the lung microbiota dysbiosis in chronic obstructive pulmonary disease exacerbations: the controversial use of corticosteroid and antibiotic treatments and the role of eosinophils as a disease marker. J Clin Med Res. 2019;11(10):667–675. doi:10.14740/jocmr3875
   PubMedGoogle Scholar
• Bafadhel M, McKenna S, Terry S, et al. Blood eosinophils to direct corticosteroid treatment of exacerbations of chronic obstructive pulmonary disease: a randomized placebo-controlled trial. Am J Respir Crit Care Med. 2012;186(1):48–55. doi:10.1164/rccm.201108-1553OC
   PubMed Web of Science ®Google Scholar
• Kolsum U, Donaldson GC, Singh R, et al. Blood and sputum eosinophils in COPD; relationship with bacterial load. Respir Res. 2017;18(1):88. doi:10.1186/s12931-017-0570-5
   PubMed Web of Science ®Google Scholar
• Linch SN, Kelly AM, Danielson ET, Pero R, Lee JJ, Gold JA. Mouse eosinophils possess potent antibacterial properties in vivo. Infect Immun. 2009;77(11):4976–4982. doi:10.1128/IAI.00306-09
   PubMed Web of Science ®Google Scholar
• Vedel-Krogh S, Nordestgaard BG, Lange P, Vestbo J, Nielsen SF. Blood eosinophil count and risk of pneumonia hospitalisations in individuals with COPD. Eur Respir J. 2018;51:5. doi:10.1183/13993003.00120-2018
   Web of Science ®Google Scholar
• Barnes NC, Sharma R, Lettis S, Calverley PM. Blood eosinophils as a marker of response to inhaled corticosteroids in COPD. Eur Respir J. 2016;47(5):1374–1382. doi:10.1183/13993003.01370-2015
   PubMed Web of Science ®Google Scholar
• Watz H, Tetzlaff K, Wouters EF, et al. Blood eosinophil count and exacerbations in severe chronic obstructive pulmonary disease after withdrawal of inhaled corticosteroids: a post-hoc analysis of the WISDOM trial. Lancet Respir Med. 2016;4(5):390–398. doi:10.1016/S2213-2600(16)00100-4
   PubMed Web of Science ®Google Scholar
• Tashkin DP, Wechsler ME. Role of eosinophils in airway inflammation of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2018;13:335–349. doi:10.2147/COPD.S152291
   PubMed Web of Science ®Google Scholar
• Gao J, Zhang M, Zhou L, et al. Correlation between fractional exhaled nitric oxide and sputum eosinophilia in exacerbations of COPD. Int J Chron Obstruct Pulmon Dis. 2017;12:1287–1293. doi:10.2147/COPD.S134998
   PubMed Web of Science ®Google Scholar
• Ko FWS, Chan KP, Ngai J, et al. Blood eosinophil count as a predictor of hospital length of stay in COPD exacerbations. Respirology. 2020;25(3):259–266. doi:10.1111/resp.13660
   PubMed Web of Science ®Google Scholar