1.An Appropriate Lower Respiratory Tract Specimen Is Essential for Diagnosis of Middle East Respiratory Syndrome (MERS).
Jae Hoon LEE ; Chang Seop LEE ; Heung Bum LEE
Journal of Korean Medical Science 2015;30(8):1207-1208
No abstract available.
Bronchi/microbiology/pathology
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Coronavirus Infections/*microbiology/*pathology
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Delayed Diagnosis/*prevention & control
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Diagnosis, Differential
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Diagnostic Errors/*prevention & control
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False Positive Reactions
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Humans
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Male
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Middle Aged
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Reproducibility of Results
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Sensitivity and Specificity
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Specimen Handling/methods
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Sputum/*cytology/*microbiology
2.Acceptability of Sputum Specimens for Diagnosing Pulmonary Tuberculosis.
Yeon Joo LEE ; Sue SHIN ; Eun Youn ROH ; Jong Hyun YOON ; Deog Kyeom KIM ; Hee Soon CHUNG ; Chang Hoon LEE
Journal of Korean Medical Science 2015;30(6):733-736
The evaluation of the quality of a sputum specimen prior to bacterial culture has been an accepted practice. However, optimal sputum criteria for pulmonary tuberculosis (TB) are not well established. We investigated indicators for sputum acceptability in tuberculosis cultures and acid-fast bacilli (AFB) smear. A post-hoc analysis of a randomized trial with 228 sputum specimens from 77 patients was conducted. In the trial, pulmonary TB suspects were requested for collecting three sputum specimens. We performed both TB study (AFB smear and M. tuberculosis culture) and Gram staining in each specimen. By using generalized estimating equations, the association between sputum characteristics and positive TB testings were analyzed. Although acceptable specimens for bacterial pneumonia showed higher TB-culture positive rates than unacceptable specimens (adjusted odds ratio [aOR]=1.66; 95% confidence interval [CI]=1.11-2.49), a specimen with > or =25 white blood cells/low-power field was the better predictor for positive M. tuberculosis cultures (aOR=2.30; 95% CI=1.48-3.58) and acid-fast bacilli smears (aOR=1.85; 95% CI=1.05-3.25). Sputum leukocytosis could be an indicator of sputum acceptability for diagnosing pulmonary tuberculosis.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Bacteriological Techniques/*methods
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Female
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Humans
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Male
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Middle Aged
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Mycobacterium tuberculosis/*isolation & purification
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Reproducibility of Results
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Sensitivity and Specificity
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Sputum/cytology/*microbiology
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Tuberculosis, Pulmonary/*diagnosis/*microbiology/pathology
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Young Adult