Clinical Evaluation of the Gen-Probe amplified mycobacterium tuberculosis direct test for rapid detection of Mycobacterium tuberculosis in select nonrespiratory specimens.
Clinical Evaluation of the Gen-Probe amplified mycobacterium tuberculosis direct test for rapid detection of Mycobacterium tuberculosis in select nonrespiratory specimens.
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Gen-Probe 扩增结核分枝杆菌直接检测用于快速检测选定非呼吸道样本中结核分枝杆菌的临床评价。
DOI：
10.1128/jcm.39.2.747-749.2001
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发表时间：
2001
影响因子：
9.4
通讯作者：
Williams-Bouyer,N
中科院分区：
文献类型：
--
作者：
Woods,GL;Bergmann,JS;Williams-Bouyer,N
The performance of the Amplified Mycobacterium Tuberculosis Direct Test (MTD; Gen-Probe, Inc., San Diego, Calif.) for rapid diagnosis of extrapulmonary tuberculosis was evaluated by testing 178 nonrespiratory specimens from 158 patients. Criteria for specimen inclusion were (i) a positive smear for acid-fast bacilli (n= 54) and (ii) the source if the smear was negative (tissue biopsies and aspirates and abscess material were tested;n= 124). Results were compared to those of mycobacterial culture; clinical history was reviewed when MTD and culture results disagreed. Forty-eight specimens (27.0%) were positive for mycobacteria, including 23Mycobacterium tuberculosiscomplex specimens; of which 21 were smear positive. Twenty-five specimens were MTD positive; 20 of these grewM. tuberculosiscomplex. All of the five MTD-positive,M. tuberculosiscomplex culture-negative specimens were considered truly positive, based on review of the medical record. Of the three MTD-negative,M. tuberculosiscomplex culture-positive specimens, two contained inhibitory substances; one of the two was smear positive. Excluding the latter specimen from analysis, after chart review, the sensitivity, specificity, and positive and negative predictive values of the MTD were 92.6, 100, 100, and 98.7%, respectively, by specimen and 89.5, 100, 100, and 98.6% by patient. Given the few smear-negative samples from patients with extrapulmonary tuberculosis in our study, additional similar studies that include more smear-negative,M. tuberculosiscomplex culture-positive specimens to confirm our data are desirable.
