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Diagnostic yield of post-bronchoscopy sputum for diagnosing pauci-bacillary pulmonary tuberculosis

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Abstract
Background: A few studies have mentioned that post-bronchoscopy sputum (PBS) could improve the diagnostic yield in pauci-bacillary pulmonary tuberculosis (PTB). Therefore, we evaluated the diagnostic yield of PBS for diagnosing pauci-bacillaryPTB. Methods: Clinical data of immunocompromised adult patients with pauci-bacillary PTB were retrospectively retrieved at a tertiary hospital in Seoul, South Korea over a 5-year period. We analyzed patients who underwent bronchoscopy examinations for diagnosing pauci-bacillary PTB. Results: Ninety patients were finally analyzed. Of these patients, 76 patients were tested with PBS. Six (8%) of these patients had positive results on AFB smear of PBS alone. Additionally, 52 patients (68%) had positive results on mycobacterial culture and 12 (16%) had positive results on mycobacterial culture of PBS exclusively. Therefore, in this study population, a total of 18 patients (20%) were finally diagnosed as having PTB with PBS results only, even though AFB smear microscopy and culture of other specimens had negative results. Conclusions: PBS could improve the diagnostic yield by 20% when diagnosing pauci-bacillary PTB. In addition, about 8% of the patients could be diagnosed rapidly because of AFB smear microscopy positivity for PBS. Therefore, PBS use should be considered as a complementary diagnostic approach in patients with suspected pauci-bacillary PTB.
Author(s)
김성한박정하심태선조경욱
Issued Date
2021
Type
Article
Keyword
Post-bronchoscopy sputumpauci-bacillarypulmonary tuberculosis
DOI
10.1080/07853890.2021.1908587
URI
https://oak.ulsan.ac.kr/handle/2021.oak/7920
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_pubmed_primary_33969770&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Diagnostic%20yield%20of%20post-bronchoscopy%20sputum%20for%20diagnosing%20pauci-bacillary%20pulmonary%20tuberculosis&offset=0&pcAvailability=true
Publisher
ANNALS OF MEDICINE
Location
스웨덴
Language
영어
ISSN
0785-3890
Citation Volume
53
Citation Number
1
Citation Start Page
576
Citation End Page
580
Appears in Collections:
Medicine > Medicine
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