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Significance of Aspergillus spp.isolation from lower respiratory tract samples for the diagnosis and prognosis of invasive pulmonary aspergillosis in chronic obstructive pulmonary disease

摘要:

Background Chronic obstructive pulmonary diseases (COPD) is an emerging population at risk for invasive infection of Aspergillus.Isolation of Aspergillus from lower respiratory tract (LRT) samples is important for the diagnosis of invasive pulmonary aspergillosis (IPA).The purpose of this study was to investigate the value of Aspergillus isolation from LRT samples for the diagnosis and prognosis of IPA in COPD population.Methods Clinical record with Aspergillus spp.isolation in COPD and immunocompromised patients was reviewed in a retrospective study.Patients were categorized and compared according to their severity of illness (admitted to general ward or ICU) and immunological function (COPD or immunocompromised).Results Multivariate statistical analysis showed that,combined with Aspergillus spp.isolation,APACHE Ⅱ scores >18,high cumulative doses of corticosteroids (>350 mg prednisone or equivalent dose) and more than four kinds of broad-spectrum antibiotics received in hospital may be predictors of IPA in COPD (OR=9.076,P=0.001; OR=4.073,P=-0.026; OR=4.448,P=0.021,respectively).The incidence of IPA,overall mortality,mortality of patients with IPA and mortality of patients with Aspergillus spp.colonization were higher in COPD patients in ICU than in general ward,but were similar between COPD and immunocompromised patients.Conclusions Aspergilltus spp.isolation from LRT in COPD may be of similar importance as in immunocompromised patients,and may indicate an increased diagnosis possibility of IPA and worse prognosis when these patients received corticosteroids,antibiotics,and need to admit to ICU.Aspergillus spp.isolation from LRT samples combined with certain risk factors may be useful in differentiating colonization from IPA and evaluating the prognosis of IPA in COPD patients.

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期刊: 《中华医学杂志(英文版)》2012年125卷17期 2973-2978页 SCISCIEMEDLINEISTICCSCDBP
分类号: S858.31
栏目名称: ORIGINAL ARTICLES
DOI: 10.3760/cma.j.issn.0366-6999.2012.17.003
发布时间: 2012-11-16
基金项目:
This work was supported by Beijing Novel Star of Science and Technology Program
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