灌洗液非结核分枝杆菌菌培养(960)阴性(—)是什么意思

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BACTEC MGIT 960系统在分枝杆菌属菌种初步鉴定及药敏中的应用
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MGIT960与罗氏培养法在结核分枝杆菌培养及药敏试验中的比对分析
张娟1 蒋俊1 张红1 贾琳1 魏成翠1 石莲1 马静红1 杨立军2
1.辽宁省沈阳市胸科医院结核病实验室; 2. 辽宁省结核病防治所;
Comparing analysis of Mycobacterium Bactec MGIT960 culture with Lowenstein-Jensen culture method
Zhang Juan1, Jiang Jun1, Zhang Hong1, Jia Lin1, Wei Chengcui1, Shi Lian1, Ma Jinghong1, Yang Lijun2
&1.TB Laboratory of Shenyang Chest H Shenyang 110044; C 2.Tuberculosis Control Institution of Liaoning P Shenyang 110005; China
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摘要&目的 比对全自动Bactec MGIT960(MGIT960)系统与改良罗氏(L-J)培养方法 2者在结核分枝杆菌培养、鉴定及药敏试验中的优越性。 方法 按国家疾病预防控制中心(CDC)-碧迪项目辽宁工作方案要求和国际标准WS288-2009《肺结核诊断标准》纳入临床病例。本实验共纳入病例435例,其中男性319例,女性116例,平均年龄52.3岁(10~86岁)。上述每份病例标本均分别进行痰液涂片抗酸染色(萋-尼法)镜检,L-J固体培养和MGIT960系统液体培养。培养阳性者分别进行一线药物异烟肼(INH)、利福平(RIF)、链霉素(STR)和乙胺丁醇(EMB)的L-J法药敏试验(比例法)和MGIT960药敏试验;分别计算出抗酸染色镜检与MGIT960和L-J培养的符合率; L-J培养和MGIT960培养阳性检出率;L-J和MGIT960两种培养方法药敏试验所需的培养时间及符合率等。 结果MGIT960培养法和L-J培养法与痰涂片镜检的阳性符合率分别为90.8%(187/206)和89.3%(184/206);MGIT960与L-J结果符合率92.8%(219/236);MGIT960和L-J平均培养时间分别为9.5 d和31.5 d;MGIT960和L-J一线药物INH、RIF、STR和EMB敏感性试验的符合率分别为92.7%、95.9%、91.8%和97.3%。 结论 全自动MGIT960系统培养方法的敏感度和特异度高于L-J培养法,报告时间平均缩短至9.5-d,该系统是目前最为理想的快速结核分枝杆菌培养、鉴定和药敏试验检测系统。
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Abstract:
Objective To compare the using value of the automatic BACTEC MGIT960 system with Lowenstein-Jensen (L-J) culture method in culture, identification and drug susceptibility test of Mycobacterium. Methods A total of 435 cases (including 319 male patients and 116 female patients with average age 52.3 years) were detected by sputum smear for acid-fast staining, L-J culture and MGIT960 liquid culture, respectively. The culture-positive samples were further performed drug susceptibility test on isoniazid (INH), rifampicin (RIF), streptomycin (STR) and ethambutol (EMB) using the absolute concentration method on L-J medium and MGIT960 method, respectively. Their culture-positive rate, culture time and coincidence rate were analyzed.& Results The positive coincidence rate of MGIT960 and L-J culture with sputum smear were 90.8% (187/206) and 89.3% (184/206), respectively. The coincidence rate of MGIT960 and L-J culture was 92.8% (219/236). Their average culture times were 9.5 days and 31.5 days, respectively. The coincidence rate of INH、RIF、STR and EMB drug susceptibility test using MGIT960 and L-J culture method was 92.7%, 95.9%, 91.8% and 97.3%, respectively.& Conclusions The sensitivity and specificity of automatic MGIT960 are higher than L-J method. The report time of MGIT960 reduced to 9.5 days. The automatic MGIT960 is ideal for the rapid mycobacterial culture, identification and drug susceptibility test.
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通讯作者 蒋俊&&&
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.MGIT960与罗氏培养法在结核分枝杆菌培养及药敏试验中的比对分析[J]& 中国防痨杂志, ): 361-365
.Comparing analysis of Mycobacterium Bactec MGIT960 culture with Lowenstein-Jensen culture method[J]& Chinese Journal of Antituberculosis, ): 361-365
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吴雪琼,张宗德,乐军. 分枝杆菌分子生物学[M].北京:人民军医出版社,.
Bird BR, Denniston MM, Huebner RE, Good RC. Changing practices in mycobacteriology: a follow-up survey of state and territorial public health laboratories[J].J Clin Microbiol,):554-559.
王巍,李洪敏,王安生,吴雪琼,王仲元,刘金伟,陈红兵,林明贵,王金河,李静,仲斌,丹子军,张韬,李素梅.BACTEC-MGIT960快速培养药敏对肺结核诊治的应用和评价[J].中国防痨杂志,):379-381.
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和痰培养一样
快培一个月,慢培两到两个半月。
既然已经开始用药,就别管是啥病了。左氧氟沙星是抑菌药,不存在耐药问题,是抑制细菌DNA复制的。
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