{"title":"交叉引物扩增检测SARS-CoV-2病毒的有效性","authors":"Luhung Budiailmiawan, R. B. Ristandi, A. Fibriani","doi":"10.24293/ijcpml.v28i3.1895","DOIUrl":null,"url":null,"abstract":"The standard molecular technique to detect the SARS-CoV-2 virus is The Real-Time Reverse-Transcription Polymerase Chain Reaction (rRT-PCR). It requires sophisticated equipment and a time-consuming sample process. The Cross Priming Amplification (CPA) is a nucleic acid amplification technique that amplifies DNA with high specificity and efficiency under constant thermal conditions. This technique is faster than rRT-PCR and doesn't require a biosafety level-2 (BSL-2) facility. The study aimed to determine the validity of CPA with rRT-PCR as a gold standard and to evaluate its performance as molecular rapid tests for detecting SARS-CoV-2 RNA from nasopharyngeal swab specimens. This study was a descriptive diagnostic test by using data retrospectively from swab nasopharyngeal patient samples who were treated at Palabuhan Ratu Hospital with COVID-19 from 01 January to 31 December 2021. The CPA was performed on a total of 52 nasopharyngeal samples at Pelabuhan Ratu Laboratory and rRT-PCR at Provincial Health Laboratory. The validity and correlation tests were performed. The majority of subjects were female between the ages of 34-50 years. The cut-off Tt-value is 3.25, 0.84 Area Under Curve (AUC), with a p-value <0.001. The CPA has good validity for COVID-19 diagnosis with 77% sensitivity, 94% specificity, 96% PPV, and 71% NPV. The sensitivity was increasing with Ct-value <30 (82%) and Ct-value <25 (87%). The CPA had a good validity for the COVID-19 diagnostic test. The CPA could be used as a rapid molecular test for detecting SARS-CoV-2 viral RNA from nasopharyngeal swab specimens.","PeriodicalId":354500,"journal":{"name":"Indonesian Journal of Clinical Pathology and Medical Laboratory","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Validity of Cross Priming Amplification to Detect SARS-CoV-2 Virus\",\"authors\":\"Luhung Budiailmiawan, R. B. Ristandi, A. Fibriani\",\"doi\":\"10.24293/ijcpml.v28i3.1895\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The standard molecular technique to detect the SARS-CoV-2 virus is The Real-Time Reverse-Transcription Polymerase Chain Reaction (rRT-PCR). It requires sophisticated equipment and a time-consuming sample process. The Cross Priming Amplification (CPA) is a nucleic acid amplification technique that amplifies DNA with high specificity and efficiency under constant thermal conditions. This technique is faster than rRT-PCR and doesn't require a biosafety level-2 (BSL-2) facility. The study aimed to determine the validity of CPA with rRT-PCR as a gold standard and to evaluate its performance as molecular rapid tests for detecting SARS-CoV-2 RNA from nasopharyngeal swab specimens. This study was a descriptive diagnostic test by using data retrospectively from swab nasopharyngeal patient samples who were treated at Palabuhan Ratu Hospital with COVID-19 from 01 January to 31 December 2021. The CPA was performed on a total of 52 nasopharyngeal samples at Pelabuhan Ratu Laboratory and rRT-PCR at Provincial Health Laboratory. The validity and correlation tests were performed. The majority of subjects were female between the ages of 34-50 years. The cut-off Tt-value is 3.25, 0.84 Area Under Curve (AUC), with a p-value <0.001. The CPA has good validity for COVID-19 diagnosis with 77% sensitivity, 94% specificity, 96% PPV, and 71% NPV. The sensitivity was increasing with Ct-value <30 (82%) and Ct-value <25 (87%). The CPA had a good validity for the COVID-19 diagnostic test. The CPA could be used as a rapid molecular test for detecting SARS-CoV-2 viral RNA from nasopharyngeal swab specimens.\",\"PeriodicalId\":354500,\"journal\":{\"name\":\"Indonesian Journal of Clinical Pathology and Medical Laboratory\",\"volume\":\"19 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indonesian Journal of Clinical Pathology and Medical Laboratory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24293/ijcpml.v28i3.1895\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indonesian Journal of Clinical Pathology and Medical Laboratory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24293/ijcpml.v28i3.1895","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The Validity of Cross Priming Amplification to Detect SARS-CoV-2 Virus
The standard molecular technique to detect the SARS-CoV-2 virus is The Real-Time Reverse-Transcription Polymerase Chain Reaction (rRT-PCR). It requires sophisticated equipment and a time-consuming sample process. The Cross Priming Amplification (CPA) is a nucleic acid amplification technique that amplifies DNA with high specificity and efficiency under constant thermal conditions. This technique is faster than rRT-PCR and doesn't require a biosafety level-2 (BSL-2) facility. The study aimed to determine the validity of CPA with rRT-PCR as a gold standard and to evaluate its performance as molecular rapid tests for detecting SARS-CoV-2 RNA from nasopharyngeal swab specimens. This study was a descriptive diagnostic test by using data retrospectively from swab nasopharyngeal patient samples who were treated at Palabuhan Ratu Hospital with COVID-19 from 01 January to 31 December 2021. The CPA was performed on a total of 52 nasopharyngeal samples at Pelabuhan Ratu Laboratory and rRT-PCR at Provincial Health Laboratory. The validity and correlation tests were performed. The majority of subjects were female between the ages of 34-50 years. The cut-off Tt-value is 3.25, 0.84 Area Under Curve (AUC), with a p-value <0.001. The CPA has good validity for COVID-19 diagnosis with 77% sensitivity, 94% specificity, 96% PPV, and 71% NPV. The sensitivity was increasing with Ct-value <30 (82%) and Ct-value <25 (87%). The CPA had a good validity for the COVID-19 diagnostic test. The CPA could be used as a rapid molecular test for detecting SARS-CoV-2 viral RNA from nasopharyngeal swab specimens.