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Invasive Aspergillus infections in hospitalized patients with chronic lung disease

Authors Wessolossky M, Welch VL, Sen A, Babu TM, Luke DR

Received 21 January 2013

Accepted for publication 16 April 2013

Published 27 May 2013 Volume 2013:6 Pages 33—39

DOI https://doi.org/10.2147/IDR.S43069

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Mireya Wessolossky,1 Verna L Welch,2 Ajanta Sen,1 Tara M Babu,1 David R Luke2

1Division of Infectious Diseases, University of Massachusetts Medical School, Worcester, MA, USA; 2Medical Affairs, Pfizer Inc, Collegeville, PA, USA

Background: Although invasive pulmonary aspergillosis (IPA) is more prevalent in immunocompromised patients, critical care clinicians need to be aware of the occurrence of IPA in the nontraditional host, such as a patient with chronic lung disease. The purpose of this study was to describe the IPA patient with chronic lung disease and compare the data with that of immunocompromised patients.
Methods: The records of 351 patients with Aspergillus were evaluated in this single-center, retrospective study for evidence and outcomes of IPA. The outcomes of 57 patients with chronic lung disease and 56 immunocompromised patients were compared. Patients with chronic lung disease were defined by one of the following descriptive terms: emphysema, asthma, idiopathic lung disease, bronchitis, bronchiectasis, sarcoid, or pulmonary leukostasis.
Results: Baseline demographics were similar between the two groups. Patients with chronic lung disease were primarily defined by emphysema (61%) and asthma (18%), and immunocompromised patients primarily had malignancies (27%) and bone marrow transplants (14%). A higher proportion of patients with chronic lung disease had a diagnosis of IPA by bronchoalveolar lavage versus the immunocompromised group (P < 0.03). The major risk factors for IPA were found to be steroid use in the chronic lung disease group and neutropenia and prior surgical procedures in the immunocompromised group. Overall, 53% and 69% of chronic lung disease and immunocompromised patients were cured (P = 0.14); 55% of chronic lung patients and 47% of immunocompromised patients survived one month (P = 0.75).
Conclusion: Nontraditional patients with IPA, such as those with chronic lung disease, have outcomes and mortality similar to that in the more traditional immunocompromised population.

Keywords: Aspergillus, moulds, intensive care units, chronic lung disease, antifungals

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