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简介：Stentsthatkeepweakenedarteriesfromcollapsinghavebeentruelife-savers,butarenolongerneededoncethearteriesarestrengthened.Now,aresearcherhasdevelopedabiodegradablestentforheartpatientswhichwillcarrydrugswherethey'reneededandwillthendissolve.

简介：AbbottLaboratoriesisbettingheartpatientswillbenefitfromanewtypeofarterialstentthatdissolvesawaywhenitisnolongerneeded.Stentsarescaffold-likedevicesusedtopropopenclogged

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简介：ＴＨＥＡＰＰＬＩＥＤＳＴＵＤＹＯＦＴＨＥＴＯＴＡＬＨＩＰＲＥＰＬＡＣＥＭＥＮＴＦＯＲＴＨＥＡＤＵＬＴ＇ＳＣＯＮＧＥＮＩＴＡＬＤＩＳＬＯＣＡＴＩＯＮＯＦＴＨＥＨＩＰＡＴＴＨＥＰＲＩＭＡＲＹＡＣＥＴＡＢＵＬＵＭＴＨＥＡＰＰＬＩＥＤＳＴＵＤＹＯＦＴＨＥＴＯ...

简介：ThetherapyofUBI(TheUltravioletirradiationoxygenateBloodItself-transfu-sion)isusedtotreat69casesofthepatientswithcerebralinfarctionwhichareallprovedtobecerebralinfarctionbythescanningofCT.TheeffectsofUBIonthenailfoldmicrocirculationofthepatientswerestudiedwith“WeightedMultipleScoreofthenailfoldmicrocirculation”workedoutbythemicrocirculationalspecialgroupP.L.A.Comparedwiththesameagedhealthyperson,theMultiplescoreofthenail

简介：Atpresent,theneuropathologicalmechanismsandtheplasticchangesofbraincognitivefunctioninpatentswithfrontlobetumorremainunclear,moststudiesjustfocusedonglobalmeasuresofbrainfunctionalconnectivitywithoutconsideringthetimecorrelationinthedifferentregionsofthebrain.Thisstudyaimstoinvestigatebraincognitivealterationsandfunctionalplasticityinpatientswithfrontlobetumoratresting-statebyconductingfunctionalconnectivitydensity(FCD)mappingandgrangercausalityanalysis(GCA).Firstly,FCDmappingwasusedtoextractabnormalfunctionalconnectivity(FC)ofpatientswithfrontallobetumor,andanalyzedalteredbrainFCinbothshort-andlong-rangeFCD.Then,thevoxel-wiseGCAmethodwasusedtoanalyzethecausalrelationshipbetweenalteredFCregionsandotherregionsinordertodetectthetimecorrelationbetweenregionsofinterest(ROI)andrevealthedirectionofinformationflowbetweenbrainROIs.Itwasfoundthatpatientshadincreasedshort-rangeFCDinmotorandspaceattentionfunctionareas,hadincreasedshort-andlong-rangeFCDsbothinTemporalandInsula,andthecausalcoefficientswerechangedobviouslyinTemporalandFrontal.Theresultsshowthatthereisafunctionalplasticityinspaceattentionfunctionareas.TemporalandInsulaareaffectedbytumorinfrontallobe,andfunctionalreorganizationappearsinsideTemporal.

简介：客观：观察膜dialyzer在临床的维护hemodialysis(MHD)由长期的肾的失败病人使用了的polyethersulfone的安全和功效。方法：从1月到2009年2月，36个病人从加盟上海JiaoTong的新华医院被招募大学医学院。实验被人种的委员会同意，新华医院并且在从病人的权限下面。所有病人被使随机化进polyethersulfone组(足，n=18)并且polysulfone组(PS，n=18)。Hemodialysis被使用Fresenius4008S给控制能力的dialyser和极端净化酸式碳酸盐透析液，超过3.5h每次，三次每星期，由肝磷脂antieoagulation列在后面一个星期，三次完全。在血脲氮(甜面包)的变化，浆液creatinine(Scr)，磷酸盐(P2+)，血红素和白朊层次为功效和安全评估被决定。结果：显著地与不同dialyzers在hemodialysis以后减少的浆液甜面包，Scr和P2+集中，和二个组的减少振幅是相等的(P>0.05)。浆液甜面包和重量的单位的清理率没在二个组之中有重要差别(P>0.05)。浆液P2+的清理率(ml/min)是144.57

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简介：Objective:Toinvestigatetheinfluenceofdifferentrightventricular(RV)pacingsitesonQRSwidth,andtoprovideapotentialreferencesiteforpermanentrightventricularpacinginpatientsimplantedwithpermanentpacemakers.PacingatthesitewiththeshortestQRSdurationmayreducethedeleteriouseffectsofRVpacingonLVfunction,andthushavingbeneficialeffectsonpatient’soutcome.Methods:AllconsecutivepatientswhowereplannedtohavepermanentpacemakerimplantationforaClassIorIIaindicationatourdepartmentfromOctober2010toJuly2012werescreenedfortheparticipationinthisprospective,singlecenter,non-randomizedstudy.ThebaselinesurfaceECGwasanalyzedforQRSwidthandmorphology,respectively.DuringtheimplantationprocedurepatientsweretransientlypacedatdifferentRVlocations(rightventricularapex,rightventricularinflowtract[RVIT],midseptum,highseptumandrightventricularoutflowtract[RVOT])beforetheleadwasplacedatitsfinalposition.Duringpacingatthedifferentpositionsthesurface12-leadsECGwasrecorded.BasedonthesurfaceofECGQRSdurationandmorphologyofthedifferentrightventricularpacingsiteswereanalyzedandcomparedwithbaselineandtoeachother.Results:Atotalof216patients(39%female,meanage69±13years,higherdegreeAVblock30.5%)wasenrolledinthestudy.PacedQRSdurationwassignificantlydifferentbetweenallrightventricularpacingsitescomparedwiththebaselineECG(baseline:106ms±21ms;meanpaced:158ms±16ms;p<0.001).RVApacingshowedthewidestQRS(168ms±16ms).QRSdurationwithRVITpacingwas166ms±15ms,andthatwithRVOTpacingwas165ms±15ms,respectively.QRSdurationwasnotsignificantlydifferentbetweenthesethreepositions.Mid-septalpacingshowedthenarrowestQRS(139ms±19ms)comparedtoallotherpacingsites(p<0.001).Pacingatthehigh-septumshowedabroaderQRS(153ms±14ms)thanthatpacingatthemid-septum.Comparedtootherrightventricularpacingsites

简介：Objective:TostudythecharacteristicsofpulsetracingsinCHD,andobjectivelyevaluatethesignificanceofpulsesignalindiagnosisandappreciationoftherapeuticeffectinpatientswithcoronaryheartdisease(CHD),andaccordinglyprovidewiththeoreticproofsfordevelopingnon-invasivetechniqueofpulsediagnosis.Methods:Byusingthepulsedetectionsystem,pulsegraphsinCHDpatients,patientswithoutCHDand"health"adultswerecollectedandcompared.ThencharactersofthepulsesignalwereanalyzedwithHilbert-Huangtransformationroutine(HHT)andtime-domainmethodrespectively.Results:ThereexistedcharacteristicchangeinpulsegraphinCHD.①h1,h3,h4,h3/h1,t,t5/t4intimedomainparametersofpulsegraphincreasedandw1waswidened.②44%ofC2waveinHHTdisplayshowedchaoticanddisorderlywaveandirregularlywaveamplitudeinCHD.And72%ofC5Waveexhibitedinirregularwavewithaveragewaveamplitudeover10gram-forces.Thesechangesweresignificantlydifferentfromhealthadults.Conclusion:CharacteristicwaveofpulsegraphextractedwithmethodsoftimedomainorHHTroutinemightbeconsideredasproofsfordiagnosisanddifferentiationinCHD.OurresearchesprognosticatethatpulsediagnosiscanbeusedasanancillarydeterminationinoccurrenceofCHDforreasonsoftheadvantageofconvenientoperationandnon-invasion.

简介：Areaswithhighfrequencyactivitywithintheatriumarethoughttobe'drivers'oftherhythminpatientswithatrialfibrillation(AF)andablationoftheseareasseemstobeaneffectivetherapyine-liminatingDFgradientandrestoringsinusrhythm.ClinicalgroupshaveappliedthetraditionalFFT-basedapproachtogeneratethethree-dimensionaldominantfrequency(3DDF)mapsduringelectro-physiology(EP)proceduresbutliteratureisrestrictedonusingalternativespectralestimationtech-niquesthatcanhaveabetterfrequencyresolutionthatFFT-basedspectralestimation.

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