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Respiratory Viruses in Acute Exacerbations of Bronchiectasis

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Abstract
Background: Bacterial infections are well known factors underlying acute exacerbations in bronchiectasis. However, viral infections may also contribute to acute exacerbations. We aimed to assess the rate of viral detection in acute exacerbations of bronchiectasis, and the associated clinical factors.

Methods: Diagnostic tests for viral and bacterial etiologies were performed in 792 patients with bronchiectasis who visited the emergency room or the respiratory care inpatient unit in a tertiary referral center in South Korea. All patients were diagnosed with bronchiectasis by chest computerized tomography and were prescribed antibiotics for a minimum of 3 days.

Results: Viral pathogens were detected in 202 of the 792 enrolled patients (25.5%). The most common viral pathogen isolated was influenza A virus (24.8%), followed by rhinovirus (22.4%), influenza B virus (9.8%), respiratory syncytial virus B (8.9%), and human metapneumovirus (6.1%). In 145 patients, a viral, but not bacterial, pathogen was detected, whereas no pathogens were found in 443 patients with exacerbations. Multivariable analysis revealed that female sex and chronic heart disease as a comorbidity were positively associated with viral detection in acute exacerbations of patients with bronchiectasis, whereas the presence of radiographic infiltration was negatively associated.

Conclusion: Respiratory viruses were identified in approximately 25% of the acute exacerbations observed among patients with bronchiectasis. Of the viruses detected, influenza viruses and rhinovirus made up over 50%. More attention to viruses as possible causative pathogens for acute deteriorating symptoms in patients with bronchiectasis is warranted.
Author(s)
성흥섭오연목Yea Eun Park
Issued Date
2021
Type
Article
Keyword
BronchiectasisAcute ExacerbationRespiratory Viruses
DOI
10.3346/jkms.2021.36.e217
URI
https://oak.ulsan.ac.kr/handle/2021.oak/7097
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9852806&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Respiratory%20Viruses%20in%20Acute%20Exacerbations%20of%20Bronchiectasis&offset=0&pcAvailability=true
Publisher
JOURNAL OF KOREAN MEDICAL SCIENCE
Location
대한민국
Language
영어
ISSN
1011-8934
Citation Volume
36
Citation Number
34
Citation Start Page
0
Citation End Page
0
Appears in Collections:
Medicine > Medicine
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