[通过非放射性Bactec系统检测到的结核分枝杆菌和/或鸟分枝杆菌引起的菌血症]
[Bacteremia caused by Mycobacterium tuberculosis and/or Mycobacterium avium detected by the non-radiometric Bactec system].
作者信息
Planes A M, Gasser I, González T, Ramírez A, Arcalís L
机构信息
Servicio de Microbiología, Ciutat Universitària de la Vall d'Hebron, Barcelona.
出版信息
Enferm Infecc Microbiol Clin. 1993 Nov;11(9):494-6.
BACKGROUND
To assess the utility of Bactec non-radiometric system in detecting disseminated mycobacteremia.
METHODS
Blood cultures are processed using the Bactec NR 660/HPS system. Incubation of the NR6A vials, from HIV infected patients, is prolonged for 6 weeks and read once a week. After the 14th day of incubation a growth value > or = 30 is considered positive.
RESULTS
Mycobacteria were recovered from 80 blood cultures from 32 human immunodeficiency virus infected patients. The mean time required to detect growth was 37.8 days (range 20-45). Mycobacterium tuberculosis was isolated from 18 patients and Mycobacterium avium from 14. In 12 patients (37.5%) blood culture was the first or the only positive specimen.
CONCLUSIONS
Prolonged incubation of NR6A medium has proved to be a suitable method for detecting mycobacteremia.
背景
评估Bactec非放射性系统在检测播散性分枝杆菌血症中的效用。
方法
使用Bactec NR 660/HPS系统进行血培养。对来自HIV感染患者的NR6A瓶进行6周的延长培养，并每周读取一次。培养14天后，生长值≥30被认为是阳性。
结果
从32例人类免疫缺陷病毒感染患者的80份血培养物中分离出分枝杆菌。检测到生长所需的平均时间为37.8天（范围20 - 45天）。从18例患者中分离出结核分枝杆菌，从14例患者中分离出鸟分枝杆菌。在12例患者（37.5%）中，血培养是首个或唯一的阳性标本。
结论
NR6A培养基的延长培养已被证明是检测分枝杆菌血症的一种合适方法。
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