tetano
Editor, Senior Moderator
Lab Med
. 2022 Jul 16;lmac030.
doi: 10.1093/labmed/lmac030. Online ahead of print.
Evaluation of RT-LAMP Assay for Rapid Detection of SARS-CoV-2
Ya-Ping Li[SUP] 1 2 [/SUP], Xun-Jie Cao[SUP] 1 3 [/SUP], Xin Luo[SUP] 1 3 [/SUP], Tian-Ao Xie[SUP] 1 3 [/SUP], Wan-Jun Liu[SUP] 1 2 [/SUP], Shi-Ming Xie[SUP] 1 4 [/SUP], Min Lin[SUP] 1 5 [/SUP], Xu-Guang Guo[SUP] 1 3 6 7 8 [/SUP]
Affiliations
Abstract
Objective: To evaluate the accuracy of the reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay for rapid detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in community or primary-care settings.
Method: We systematically searched the Web of Science, Embase, PubMed, and Cochrane Library databases. We conducted quality evaluation using ReviewManager software (version 5.0). We then used MetaDisc software (version 1.4) and Stata software (version 12.0) to build forest plots, along with a Deeks funnel plot and a bivariate boxplot for analysis.
Result: Overall, the sensitivity, specificity, and diagnostic odds ratio were 0.79, 0.97, and 328.18, respectively. The sensitivity for the subgroup with RNA extraction appeared to be higher, at 0.88 (0.86-0.90), compared to the subgroup without RNA extraction, at 0.50 (0.45-0.55), with no significant difference in specificity.
Conclusion: RT-LAMP assay exhibited high specificity regarding current SARS-CoV-2 infection. However, its overall sensitivity was relatively moderate. Extracting RNA was found to be beneficial in improving sensitivity.
Keywords: COVID-19; COVID-19 diagnostic testing; LAMP assay; SARS-CoV-2; meta-analysis; severe acute respiratory syndrome coronavirus 2.
. 2022 Jul 16;lmac030.
doi: 10.1093/labmed/lmac030. Online ahead of print.
Evaluation of RT-LAMP Assay for Rapid Detection of SARS-CoV-2
Ya-Ping Li[SUP] 1 2 [/SUP], Xun-Jie Cao[SUP] 1 3 [/SUP], Xin Luo[SUP] 1 3 [/SUP], Tian-Ao Xie[SUP] 1 3 [/SUP], Wan-Jun Liu[SUP] 1 2 [/SUP], Shi-Ming Xie[SUP] 1 4 [/SUP], Min Lin[SUP] 1 5 [/SUP], Xu-Guang Guo[SUP] 1 3 6 7 8 [/SUP]
Affiliations
- PMID: 35849098
- DOI: 10.1093/labmed/lmac030
Abstract
Objective: To evaluate the accuracy of the reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay for rapid detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in community or primary-care settings.
Method: We systematically searched the Web of Science, Embase, PubMed, and Cochrane Library databases. We conducted quality evaluation using ReviewManager software (version 5.0). We then used MetaDisc software (version 1.4) and Stata software (version 12.0) to build forest plots, along with a Deeks funnel plot and a bivariate boxplot for analysis.
Result: Overall, the sensitivity, specificity, and diagnostic odds ratio were 0.79, 0.97, and 328.18, respectively. The sensitivity for the subgroup with RNA extraction appeared to be higher, at 0.88 (0.86-0.90), compared to the subgroup without RNA extraction, at 0.50 (0.45-0.55), with no significant difference in specificity.
Conclusion: RT-LAMP assay exhibited high specificity regarding current SARS-CoV-2 infection. However, its overall sensitivity was relatively moderate. Extracting RNA was found to be beneficial in improving sensitivity.
Keywords: COVID-19; COVID-19 diagnostic testing; LAMP assay; SARS-CoV-2; meta-analysis; severe acute respiratory syndrome coronavirus 2.