Rapid and effective diagnosis of pulmonary tuberculosis with novel and sensitive loop-mediated isothermal amplification (LAMP) assay in clinical samples: a meta-analysis.
In recent years, Loop-mediated isothermal amplification (LAMP) assay has been introduced for the diagnosis of pulmonary tuberculosis (TB). We performed the meta-analysis to establish the overall accuracy of LAMP assay for diagnosing pulmonary TB. Based on comprehensive searches of the pubmed, embase and cochrane databases, we identified outcome datas from all articles estimating diagnostic accuracy with LAMP assay until 1 October 2012. A summary estimation for sensitivity, specificity, diagnostic odds ratios (DOR) and the area under the summary ROC curve (AUC) was calculated by using the bivariate random-effects approach. The meta-analysis included 10 studies (1920 suspected specimens). The summary estimate was 80.0% (95%CI, 78.0%-83.0%) for sensitivity, 96.0% (95%CI, 95.0%-97.0%) for specificity and 119.85/0.9633 for DOR/AUC in pulmonary TB. The findings in subgroup analysis were as follows: the accuracy of LAMP assay is higher in high quality level studies than moderate and low quality level studies. The pooled sensitivity for the diagnosis of pulmonary TB was 90.0% (95%CI, 86.0-93.0%) and 75.0% (95%CI, 71.0-78.0%) for high quality level studies and moderate combined low quality level studies, respectively, while the specificity was 99.0% (95%CI, 98.0-100.0%) and 91.0% (95%CI, 88.0-94.0%). Pulmonary TB can be rapidly and accurately diagnosed with LAMP assay.
Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Zangzhidong Road 238, Wuhan 430060, China.
Le-yong
LY
Yuan
Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Zangzhidong Road 238, Wuhan 430060, China. Electronic address: liyan@whu.edu.cn.
Yan
Y
Li
Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Zangzhidong Road 238, Wuhan 430060, China.
Ming
M
Wang
Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, China.
Zun-qiong
ZQ
Ke
Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Zangzhidong Road 238, Wuhan 430060, China.
Wan-zhou
WZ
Xu
D006801:Humans; D021141:Nucleic Acid Amplification Techniques / Q000379:methods*; D012372:ROC Curve; D012680:Sensitivity and Specificity; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis*
Diagnosis; LAMP; Meta-analysis; Pulmonary tuberculosis