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Direct identification of mycobacteria from smear-positive samples using real-time polymerase chain reaction
被引:3
|作者:
Marekovic, I.
[1
,2
]
Bosnjak, Z.
[2
]
Plecko, V.
[1
,2
]
机构:
[1] Univ Zagreb, Sch Med, Zagreb 41001, Croatia
[2] Univ Hosp Ctr Zagreb, Dept Clin & Mol Microbiol, Zagreb 10000, Croatia
关键词:
acid-fast bacilli grade;
bronchoalveolar lavage;
tuberculosis;
SPUTUM SAMPLES;
PCR;
TUBERCULOSIS;
D O I:
10.5588/ijtld.13.0042
中图分类号:
R51 [传染病];
学科分类号:
100401 ;
摘要:
The aim of the present study was to investigate whether real-time polymerase chain reaction (PCR) has a low identification rate for samples with low acid-fast bacilli (AFB) grades, including those obtained using bronchoscopy. When 50 smear-positive samples were compared by AFB score and PCR result, PCR was 100% successful in identifying AFB 2+ and AFB 3+ samples. However, only 14 of 26(52%) AFB 1+ samples were identified. In paucibacillary smear-positive samples, PCR is not reliable enough to exclude tuberculosis, but in smear-positive patients with high AFB grades PCR can immediately change the clinical management of the disease.
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页码:978 / 980
页数:3
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