简介:Rapidexpansionofbig-boxstoreindevelopingcountrycausedtypicalarchetypalchangeinmarketstructure:SuccesstotheSuccessful,becausebig-boxstoresarmedwithmodernizedinfrastructureandmanagementcapabilityareabsorbingtheoncecustomersofthetraditionalmarketlikeablackhole.Facingrapidchangeinmarketstructureandsurmountingpleasfromtraditionalmarketmerchants,governmenttookaninevitableinterventionwithlawregulatingthebig-boxstore’sbusinessandimprovingtraditionalmarket’scompetencebuilding.Notsolong,however,didgovernmentconfrontpolicyresistancefrombothsides:Stillongoingpolarizationofbothside’ssales.Thisstudyarticulatesbehaviorovertimeofmarketstructurewithcausalloopdiagramsofwhichcausalitiesareextractedfromliteratures.Thisstudyprovidessignificantcontributiontopolicymakersandtraditionalmarkets’merchantsinotherdevelopingcountrieslikeIndiaandChina,aswellasKorea.
简介:BackgroundCoronaryslowflow(CSF)duringprimarypercutaneouscoronaryintervention(PCI)iscloselyrelatedtotheprognosisofpatientswithacutemyocardialinfarction(AMI).WhetherEnhancedExternalCounterPulsation(EECP)couldimprovethephenomenonandenhancecardiacfunctioninthesepatientshasnotbeenstudied.MethodsSeventy-eightAMIpatientsundergoingprimaryPCIwereenrolledanddividedinto2groups,EECPgroupandshamgroup.InEECPgroup,thepatientsweretreatedwithEECPfor30minaftercoronaryarterystentimplantation;andinshamgroup,thepatientsaftercoronaryarterystentimplantationweretreatedwithcuffswrappedfor30min.HemodynamicsandcorrectedTIMIFrameCount(cTFC)wererecordedatdifferenttimepointsinbothgroups.CRP,HCY,NT-proBNPandKillipclasswerealsodetectedbeforeoperationandaftertreatment.ResultsInEECPgroup,comparedtopre-andpost-EECPtreatment,thesystolicbloodpressure(SBP)wasmuchlower(P<0.05),diastolicbloodpressure(DBP)andmeanarterialbloodpressure(MBP)weremuchhigher(P<0.05).Theheartrate(HR)wasnotchangedduringEECPtreatment(P>0.05).Inshamgroup,SBP,DBP,MBPandHRwerenotsignificantlychangedduringtheseperiod(P>0.05).InEECPgroup,thecTFCofpatientswithCSFdecreasedsignificantlyaftertreatment(P<0.05);andtherewasnodifferenceinshamgroup(P>0.05).Comparedwithpre-EECPtreatment,CRPandHCYwereincreasedinpost-EECPtreatmentofbothgroups(P<0.05),while,theyweremuchlowerinEECPgroup(P<0.05).TheexpressionofNTproBNPwasdecreasedaftertreatmentinbothgroups(P<0.05),anditwasmuchlowerinEECPgroupthaninshamgroup(P<0.05).TheKillipclasswasmuchloweraftertreatmentthanbeforeoperationinEECPgroup(P<0.05),andtherewasnochangeinshamgroup(P>0.05).ConclusionsTheresultssuggestthatEECPishelpfulinashorttimetotheimprovementofCSFandrecoveryofcardiacfunctioninAMIpatientsduringprimaryPCI,andthatCRPandHCYmaybeinvolvedinthispr
简介:Toinvestigatethebenefitsofintracoronaryhigh-dosetirofibanduringprimarypercutaneouscoronaryintervention(PCI)forpatientswithacuteST-segmentelevationmyocardialinfarction(STEMI).MethodsFifty-eightpatientswithSTEMIpresentedwithin12hofsymptomswererandomlyallocatedtostudygroup(n=28,intracor-onaryhigh-dosetirofiban)andcontrolgroup(n=30,intravenoushigh-dosetirofiban).Theculpritvesselsweretarge-tedwithprimaryPCIinallpatients.Clinicalcharacteristics,angiographicfindings,brainnatriureticpeptide(BNP)at7-dayandin-hospitaloutcomeswerecomparedbetweengroups,aswellasleftventricularejectionfraction(LVEF)andmajoradversecardiacevents(MACE,includingdeath,reinfarction,worseningheartfailureandtargetvesselrevascu-larization)at30-dayclinicalfollow-up.ResultsComparedwiththecontrolgroup,thestudygroupshowedbetterthrombolysisinmyocardialinfarction(TIMI)flowgradesimmediatelyafterPCI(96.4%vs76.7%,P=0.02).The30-daycompositemajoradversecardiaceventsratewaslowerinthestudygroup(3.6%vs23.3%,P=0.02),andtheLVEFandBNPinthestudygroupat7dayswasbetterthanthatinthecontrolgroup(P=0.01and0.02,respec-tively).Nosignificantdifferenceinhemorrhagiccomplicationsinhospitalbetweengroupswasnoted(P=0.61).ConclusionsThestudyindicatesthatintracoronaryhigh-dosebolusadministrationoftirofibanforpatientswithSTEMIwhounderwentprimaryPCIcansignificantlyimprovethereperfusionlevelintheinfarctareaandclinicaloutcomesat30daysfollow-up.Itisbetterandsafertoapplyintravenousbolusinjectionforimprovingcoronaryflow,LVEFandshort-termclinicaloutcomes.
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简介:AbstractBackground:It remains unclear whether the outcomes of ST-elevation myocardial infarction (STEMI) patients treated with primary percutaneous coronary intervention (PPCI) during off-hours are as favorable as those treated during on-hours, especially those with a first medical contact-to-device (FMC-to-device) time within 90 min. We aimed to determine whether off-hours admission impacted late outcomes in patients undergoing PPCI and with an FMC-to-device time ≤90 min.Methods:This multicenter retrospective study included 670 STEMI patients who underwent successful PPCI and had an FMC-to-device time ≤90 min from 19 chest pain centers in Beijing from January 2018 to December 2018. Patients were divided into on-hours group and off-hours group based on their arrival time. Baseline characteristics, clinical data, and key time intervals during treatment were collected from the Quality Control & Improvement Center of Cardiovascular Intervention of Beijing by the "Heart and Brain Green Channel" app.Results:Overall, the median age of the patients was 58.8 years and 19.9% (133/670) were female. Of these, 296 (44.2%) patients underwent PPCI during on-hours and 374 (55.8%) patients underwent PPCI during off-hours. Compared with the on-hours group, the off-hours group had a longer FMC-to-device time and fewer patients with FMC-to-device time ≤60 min (P < 0.05). During the mean follow-up period of 24 months, a total of 64 (9.6%) participants experienced a major adverse cardiovascular event (MACE), with 28 (9.1%) in the on-hours group and 36 (9.6%) in the off-hours group (P > 0.05). According to the Cox regression analyses, off-hours admission was not a predictor of 2-year MACEs (P = 0.788). Similarly, the Kaplan-Meier curves showed that the risks of a MACE, all-cause death, reinfarction, and target vessel revascularization were not significantly different between the two groups (P > 0.05).Conclusions:This real-world, multicenter retrospective study demonstrated that for STEMI patients who underwent PPCI within 90 min, off-hours admission was safe, with no difference in the risk of 2-year MACEs compared with those with on-hours admission.
简介:BackgroundCreatinekinase-MB(CK-MB)elevationafterpercutaneouscoronaryintervention(PCI)hasbeenassociatedwithincreasedriskformortality.Althoughmoststudieshavedefinedperiproceduralmyocardialinfarction(pMI)asanelevationinCK-MB>3×upperlimitofnormal(ULN),useofdifferentCK-MBassaysandvariationinsite-specificdefinitionsoftheULNmaylimitthevalueofsuchrelativethresholds.MethodsandResultsWeuseddatafromthemulticenterEvaluationofDrug-ElutingStentsandIschemicEvents(EVENT)registrytoexaminetheimpactofvariationsinsite-specificthresholdsforCK-MBelevationontheincidenceofpMIaswellastherelationshipbetweenabsolutepeaklevelsofCK-MBafterPCIand1-yearmortality.Thestudycohortconsistedof6347patientswhounderwentnonemergentPCIandhadnormalCK-MBatbaseline.Acrossthe59studycenters,theULNforCK-MBrangedfrom2.6to10.4ng/mL(median,5.0ng/mL),andtherewasaninverserelationshipbetweenthesite-specificULNandtheincidenceofpMI(definedasCK-MBelevation>3×ULN).AlthoughanypostprocedureelevationofCK-MBwasassociatedwithanadverseprognosis,incategoricalanalyses,onlyCK-MB≥50ng/mLwasindependentlyassociatedwithincreased1-yearmortality(hazardratio,4.71;95%confidenceinterval,2.42to9.13;P<0.001).SplineanalysisusingpeakCK-MBasacontinuousvariablesuggestedagraded,nonlinearrelationshipwith1-yearmortality,withaninflectionpointat≈30ng/mL.ConclusionsAmongunselectedpatientsundergoingPCI,thereisagradedrelationshipbetweenCK-MBelevationafterPCIand1-yearmortalitythatisparticularlystrongforlargeCK-MBelevations(>30to50ng/mL).FuturestudiesthatincludepMIasaclinicalendpointshouldconsiderusingacorelaboratorytoassessCK-MB(toensureconsistency)andraisingthethresholdfordefiningpMIabovecurrentlevels(toenhanceclinicalrelevance).
简介:BackgroundItiswellknownthattherewasasignificantlinkbetweenpreproceduralbloodglucoselevelsandshort-termandlong-termadverseoutcomesinpatientsundergoingelectivePCI.However,theroleofpre-proceduralbloodglucoselevelsasapredictorofadverseeventsinCKDpatientswhounderwentPCIoutofestablisheddiabeteshasyettobeidentified.MethodsInourstudy,weconductedaprospectivestudyof331acutecoronarysyndrome(ACS)patientswithCKDwhounderwentPCIoutofestablisheddiabetes.Patientsweredividedintotwogroupsbasedonpre-proceduralglucoselevels(hypoglycemia<7.0mmol/L;hyperglycemia≥7.0mmol/L).Allpatientswerefollowedupprospectivelyformajoradversecardiovascularevents(MACEs)andmortalityfor6months.ResultsInourcohort,hyperglycemiapatientsreportedahigherincidenceofin-hospitalmortalitythanhypoglycemiapatients(7.5%vs.0%,P<0.001).Hyperglycemiapatientsreportedasignificantlyhigherrateof6-monthMACEs(10%vs.2.4%,P=0.007),allcausemortality(7.5%vs.1.6%,P=0.015),andcardiovascularmortality(6.2%vs1.6%,P=0.041)comparedwithhypoglycemiapatientswithpre-proceduralglucoselevels<7.0mmol/L.Multivariateanalysisdisclosedthatapre-proceduralglucoselevel≥7.0mmol/LwasasignificantindependentpredictorofMACEs(OR=2.53,95%CI1.68-17.15,P=0.004),allcausemortality(OR=4.6,95%CI1.10-18.84,P=0.036),andcardiovascularmortality(OR=6.2,95%CI1.53-24.94,P=0.011)at6monthsinpatientsafterPCI.ConclusionThestudysuggestedthatpre-proceduralglucoselevelsareassociatedwithshort-termcardiovascularoutcomeCKDpatientswhounderwentPCIwithoutestablisheddiabetesinthesettingofACS.
简介:BackgroundPriorrandomizedtrialshaveshownreducedbleedingwithbivalirudincomparedwithunfractionatedheparin(UFH)inpatientsundergoingpercutaneouscoronaryintervention(PCI).However,itisnotknownifthisbenefitisalsopresentwhenUFHdosesaremoretightlycontrolled(asmeasuredbyactivatedclot-tingtime,ACT).MethodsandResultsPatientsenrolledintheEVENT(EvaluationofDrug-ElutingStentsandIschemicEvents)registry,weredividedinto3groups,basedontheantithromboticdrugusedduringPCI(UFHmonotherapy,UFH+glycoproteinIIb-IIIareceptorinhibitor[GPI],orbivalirudinalone).Propensityscorematchingwasusedtoadjustformeasuredcovariates(89variables)andtocomparebivalirudinversusUFHmonotherapyandbivalirudinversusUFH+GPIgroups.TheUFHgroupswerestratifiedbasedonACTachieved(optimalACTdefinedas250-300forUFHmonotherapyand200-250whenGPIwasalsoused).Theprimarybleedingoutcomewasin-hospitalcompositebleeding,definedaseventsofaccesssitebleeding,ThrombolysisInMyocardialInfarctionmajor/minorbleeding,ortransfusion.Primary(in-hospitaldeath/myocardialinfarction)andsecondaryischemicoutcomes(death/MI/unplannedrepeatrevascularizationat12months)werealsoevaluated.Propensityscorematchingyielded3022patientsfortheUFHmonotherapyversusbivalirudincomparisonand3520patientsfortheUFH+GPIversusbivalirudincomparison.BivalirudinusewasassociatedwithnumericallylowerbleedingratesatallcategoriesofachievedACTwhencomparedwithUFH(low,optimal,highACT:2.5%versus4.7%,1.9%versus6.0%,3.1%versus4.8%,respectively)orheparin+GPIgroups(low,optimal,highACT:0.0%versus2.7%,2.7%versus5.2%,2.4%versus6.1%,respectively)andwasnotassociatedwithanystatisticallysignificantincreaseineitherprimaryorsecondaryischemicoutcomes.ConclusionsAmongunselectedpatientsundergoingPCI,bivalirudinuseduringPCIwasassociatedwithalowerriskofbleedingatall
简介:Thepresentstudywasdesignedtosynthesize2-Cyano-3,12-dioxooleana-1,9(11)-en-28-oate-13β,28-olide(1),alactonederivativeofoleanolicacid(OA)andevaluateitsanti-inflammatoryactivity.Compound1significantlydiminishednitricoxide(NO)productionanddown-regulatedthemRNAexpressionofiNOS,COX-2,IL-6,IL-1β,andTNF-αinlipopolysaccharide(LPS)-stimulatedRAW264.7cells.FurtherinvivostudiesinmurinemodelofLPS-inducedacutelunginjury(ALI)showedthat1possessedmorepotentprotectiveeffectsthanthewell-knownanti-inflammatorydrugdexamethasonebyinhibitingmyeloperoxidase(MPO)activity,reducingtotalcellsandneutrophils,andsuppressinginflammatorycytokinesexpression,andthusamelioratingthehistopathologicalconditionsoftheinjuredlungtissue.Inconclusion,compound1couldbedevelopedasapromisinganti-inflammatoryagentforinterventionofLPS-inducedALI.