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Region Hovedstaden - en del af Københavns Universitetshospital
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Chest x-ray findings in tuberculosis patients identified by passive and active case finding: A retrospective study

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Background: Chest x-ray is central in screening and diagnosis of tuberculosis. However, sputum culture remains gold standard for diagnosis.

Aim: To establish the rate of normal chest x-rays in tuberculosis patients found by spot sputum culture screening, and compare them to a group identified through passive case finding.

Method: Chest x-rays from 39 culture-positive patients, identified by spot sputum culture screening in Copenhagen from 2012 to 2014, were included in the study (spot sputum culture group(SSC)). 39 normal chest x-rays from persons screened by mobile x-ray, and 39 chest x-rays from tuberculosis-patients identified through passive case finding(PCF) were anonymised and randomised. Two respiratory physicians and two radiologists assessed the chest x-rays.

Results: The normal chest x-ray rate was higher in the non-tuberculosis control group (median = 32 (82.1%), range = 74.4% - 100%), compared to the SSC group (median = 7 (17.9%), range = 10.3% - 33.3%), and the PCF controls (median = 3(7.7%), range = 2.6% - 15.4%). In the SSC group 14 (35.9%) were categorized as normal by at least one study participant.

Conclusion: A substantial minority of patients diagnosed with tuberculosis by spot sputum culture screening, and through passive case finding would not have been identified with chest x-ray alone, highlighting that a normal chest x-ray does not exclude pulmonary tuberculosis.

OriginalsprogEngelsk
TidsskriftJournal of clinical tuberculosis and other mycobacterial diseases
Vol/bind14
Sider (fra-til)26-30
Antal sider5
ISSN2405-5794
DOI
StatusUdgivet - 2019

Bibliografisk note

© 2019 The Authors. Published by Elsevier Ltd.

ID: 58383321