基于克拉霉素耐药性和既往抗生素暴露调查的
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EfficacyoftailoredtherapyforHelicobacterpylorieradicationbasedonclarithromycinresistanceandsurveyofpreviousantibioticexposure:Asingle‐centerprospectivepilotstudy
基于克拉霉素耐药性和既往抗生素暴露调查的幽门螺杆菌根除个性化疗法的疗效:一项单中心前瞻性试验研究
Abstract摘要
Backgroudandaim:
Astheprevalenceofantibioticresistanceisincreasing,theeffectivenessoftraditionalHelicobacterpylori(Hpylori)therapiesisgraduallydeclining.Weaimedtoevaluatetheefficacyoftailoredtherapy(dualprimingoligonucleotide[DPO]-basedmultiplexPCR)andpreviousantibioticexposuresurveypredictingforantibioticresistance.
背景和目的:
随着抗生素耐药率的增加,传统的幽门螺杆菌(Helicobacterpylori,H.pylori)治疗方法的疗效逐渐下降。我们的目的是评估定制疗法(基于双启动寡核苷酸[DPO]的多重PCR)和先前的抗生素暴露调查预测抗生素耐药性的疗效。
Methods:
PatientswithHpyloriinfectionwhodidnotreceiveprevioustreatmentwereenrolled.Thepatientsweredividedintofourgroups(noresistance[NR]group,clarithromycinresistance[CLA‐R]group,metronidazole‐resistant[MET‐R]group,andCLA‐andMET‐resistant[Dual‐R]group)basedontheresultsofdualprimingoligonucleotide(DPO)polymerasechainreaction(PCR)andpreviousantibioticexposuresurvey,andtheyweretreatedwithtailoredtherapybasedonantibioticsusceptibility.
方法:
未接受过治疗的幽门螺杆菌感染患者被纳入研究。根据双启动寡核苷酸(DPO)聚合酶链反应(PCR)和既往抗生素暴露调查结果,将患者分为四组(无耐药[NR]组、克拉霉素耐药[CLA‐R]组、甲硝唑耐药[MET‐R]组和CLA和MET耐药[Dual‐R]组),他们接受基于抗生素敏感性的个性化治疗。
Results:
ConsecutivepatientsweredistributedintheNR(n=36,70.6%),CLA‐R(n=9,17.6%),andsuspectedMET-R(n=6,11.8%)group.Theoverallintention-to-treat/per‐protocoleradicationrate(ITT/PP)was92.2%/94.0%.Inthesubgroupanal-ysis,theITTandPPoftheNR,CLA‐R,andMET‐Rgroupswere94.4%/94.4%,77.8%/87.5%,and.0%/.0%,respectively.Totalof31patientsinallsubgroupswereevaluatedforantibioticresistance;five(16.1%),two(6.5%),andthree(9.7%)participantsshowedCLA,MET,anddualresistanceinculture‐basedsusceptibilitytest.Comparedwithculture-basedMICtest,theaccuracyofDPO-basedmultiplexPCRindeterminingCLAresistancewas90.3%,whiletheaccuracyofsurveyindeterminingMETresistancewasonly77.4%.
结果:
患者分布在NR组(n=36,70.6%)、CLA-R组(n=9,17.6%)和疑似MET-R组(n=6,11.8%)。总体意向治疗/按方案根除率(ITT/PP)为92.2%/94.0%。在亚组分析中,NR、CLA‐R和MET‐R组的ITT和PP分别为94.4%/94.4%、77.8%/87.5%和.0%/.0%。所有亚组共有31名患者进行了抗生素耐药性评估;5名(16.1%)、2名(6.5%)和3名(9.7%)受试者在基于培养的药敏试验中表现出CLA、MET和双重耐药性。与培养药敏试验相比,DPO多重PCR测定CLA耐药性的准确率为90.3%,而调查法确定MET耐药性的准确率仅为77.4%。
Conclusion:
AtailoredtherapybasedonDPO‐PCRandhistoryofpreviousantibioticuseisusefulinclinicalpracticeandwellcorrelatedwithculture-basedsusceptibilitytest.
结论:
基于DPO-PCR和既往抗生素使用史的定制治疗在临床实践中是有用的,并且与基于培养的药敏试验密切相关。
文献来源:KwonYH,JeonSW,NamSY,etal.EfficacyoftailoredtherapyforHelicobacterpylorieradicationbasedonclarithromycinresistanceandsurveyofpreviousantibioticexposure:Asingle-centerprospectivepilotstudy.Helicobacter.Aug;24(4):e.
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