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Polymerasechainreaction-basedtestsfordetectingHelicobacterpyloriclarithromycinresistanceinstoolsamples:Ameta-analysis
Meta分析:PCR技术检测粪便样本中幽门螺杆菌对克拉霉素耐药性
Abstract摘要
Background:
Helicobacterpylori(H.pylori)infectioniscloselyassociatedwiththeetiologyofavarietyofgastricdiseases.TheeffectiveeradicationofH.pyloriinfectionhasbeenshowntoreducetheincidenceofgastriccarcinoma.However,therateofH.pylorieradicationhassignificantlydeclinedduetoitsincreasingresistancetoantibiotics,especiallytoclarithromycin.Therefore,thedetectionofclarithromycinresistanceisnecessarypriortothetreatmentofH.pylori.Althoughmanystudieshavebeenconductedontheuseofpolymerasechainreaction(PCR)-basedteststodetectclarithromycinresistanceinstoolsamples,noaccuratedataonthefeasibilityofthesetestsareavailable.Here,weperformedameta-analysistoassessthefeasibilityofthesenoninvasivetests.
背景:
幽门螺杆菌感染与很多胃部疾病的病因密切相关。有效根除幽门螺杆菌更是被证实能够减少胃癌的发生。然而,由于幽门螺杆菌对抗生素的耐药率不断上升,尤其是对克拉霉素的耐药率,其根除率呈显著降低趋势。因此,在开始幽门螺杆菌根除治疗前,先检测克拉霉素的耐药性是有必要的。尽管已经有很多基于PCR技术检测粪便样本中幽门螺杆菌对克拉霉素耐药性的研究,但是关于PCR检测可行性的准确数据却仍然缺乏。在这里,我们进行荟萃分析来评估这种非侵入性检测的可行性。
Aim:
ToevaluatethereliabilityofPCR-basedtestsfordetectingH.pyloriclarithromycinresistanceinstoolsamples.
目的:
评估基于PCR技术检测粪便样本中幽门螺杆菌对克拉霉素耐药性的可靠性。
Methods:
WesearchedPubMed,Medline,Embase,andotherdatabasesforarticlesthatevaluatedthevalueofthePCRanalysisofstoolsamplesfordetectingtheresistanceofH.pyloritoclarithromycin.Wecollectedcross-sectionalstudiesthatmettheinclusioncriteria.Diagnosticaccuracymeasureswerepooledusingarandom-effectsmodel.TheriskofbiaswasassessedusingtheQualityAssessmentofDiagnosticAccuracyStudies-2tool.SubgroupanalysiswasalsoconductedaccordingtoPCRtype,purificationtechnique,referencestandard,mutationsite,sampleweight,numberofpatients,andagegroup,andtheclinicalutilityofdiagnostictestswasevaluatedusingtheLikelihoodRatioScatterGraph.
方法:
我们在PubMed、Medline、Embase等数据库上检索关于评估PCR技术检测粪便中幽门螺杆菌对克拉霉素耐药性的准确性的文章。我们挑选满足入选标准的横断面研究。使用随机效应模型汇总诊断准确性指标。使用诊断准确性研究质量评估工具-2评估偏倚风险。亚组分析根据PCR类型、纯化方法、参考标准、突变位点、样本重量、患者数量以及年龄。根据似然比散布图评估诊断试验的临床应用效果。
Results:
Outoftheidentifiedstudies,only11mettheeligibilitycriteria,withatotalofpatientsassessed.Ameta-analysisoftherandom-effectmodelshowedthatPCR-basedanalysisofstoolsampleshadhighdiagnosticaccuracyfordetectingclarithromycinresistanceinpatientsinfectedwithH.pylori.The
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