THE UTILITY OF POLYMERASE CHAIN-REACTION (PCR) IN THE DIAGNOSIS OF PULMONARY TUBERCULOSIS

被引:38
作者
QUEROL, JM [1 ]
FARGA, MA [1 ]
GRANDA, D [1 ]
GIMENO, C [1 ]
GARCIADELOMAS, J [1 ]
机构
[1] UNIV HOSP & MED SCH VALENCIA,DEPT MICROBIOL,VALENCIA,SPAIN
关键词
IS6110; MYCOBACTERIUM TUBERCULOSIS; PCR; POLYMERASE CHAIN REACTION; PULMONARY TUBERCULOSIS;
D O I
10.1378/chest.107.6.1631
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
A fragment of DNA of 123 bp belonging to insertion sequence IS6110, specific of Mycobacterium tuberculosis complex, was amplified by polymerase chain reaction (PCR) of respiratory samples, for the diagnosis of pulmonary tuberculosis. A total of 314 samples (286 sputum and 28 bronchoalveolar lavages) from 242 patients were evaluated by PCR, and the results were compared with the those obtained by acid-fast-stained smears, culture, and clinical diagnosis. Mycobacterium tuberculosis was detected by PCR in 102 of 105 patients with clinical diagnosis of pulmonary tuberculosis. All smear and culture-positive samples were PCR positive. The sensitivity of PCR, culture, and staining was 97%, 88%, and 65%, respectively, and the specificity was 100% in all cases. In ten patients with old residual lesions, but no active disease, M tuberculosis genome was detected by PCR. In our experience, PCR proved to be a useful method for the rapid diagnosis of pulmonary tuberculosis.
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页码:1631 / 1635
页数:5
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