简介：backgroundIn-hospital(IH)mortalityforpatientsunderwentpercutaneouscoronaryintervention(PCI)inourcenterfrom1994to2004was1.01%(33/3252).ThePCIvolumeinourstateincreasedquicklyduringthelastfewyears,sodiditinourcenter.MethodsandResultsWeretrospectivelyscreenedatotalof3274caseswhounderwentPCIin2009,amongwhich24(0.73%,P=0.22vs.1994-2004)IHdeathoccurred.Analysisofthese24casesrevealedthatallofthemwerediagnosedasacutecoronarysyndrome(ACS),andhadtheindicationofPCI.Fifteen(63%)carriedachanceof≥10%todieinhospitalaccordingtoGRACEmodel.Significantleft-main(LM)and/ortriple-vesseldisease(TVD)weredefinedin21(88%)cases.SYNTAXscoreswere≥23in15(63%)and≥33in12(50%)cases.CompleterevascularizationwithPCIwasfulfilledinonly5(21%)cases.Myocardialischemiaorheartfunctioncouldn'timprovebyPCIwasthemostfrequentcauseofdeath,whichcontributedtothatof11(46%)cases.Cardiacruptureoccurredinallofthe4patientswithSTelevatedacutemyocardialinfarction(STE-AMI)involvinginferiorventricularwallbut'reserved'anteriorwall,andcontributedmainlytotheirmortality.ConclusionsPost-PCIIHmortalityhasmaintainedlowinourcenter.ItmostlikelyoccursinpatientswithACS.Themajorcauseofdeathisthatmyocardialischemiacouldn'timprovebyPCI,exceptforpatientswithinferiorbutnoanteriormyocardialinfarction,whosufferfromcardiacruptureinstead.

简介：CO中毒为冬季多发意外性事故，对人体损害的主要机理为CO与血液中的血红蛋白结合，使组织缺氧坏死，主要损害器官为脑和心脏。现将其心脏受损后的主要心电图改变总结如下。……

简介：口服抗凝药是心房颤动患者卒中预防的主要手段。与对照组（无治疗）比较，维生素K拮抗剂，如华法林，可减少2／3的心源性卒中的发生，但其抗凝效果难以预测，治疗指数较窄，而且需要常规监测凝血状况，增加了患者和医疗系统的负担。维生素K拮抗剂的这些缺点促使新一代的选择性抑制凝血酶或凝血因子Xa的抗凝药的发展。

简介：BackgroundAtrialfibrillation(AF)isthemostcommonsustainedcardiacarrhythmiawithouteffectivetreatment.AFisassociatedwithatrialconductiondisturbancescausedbyelectricaland/orstructuralremodel-ing.Buttheroleofconnexin(Cx)43intheregulationofLtypecalciumchannel(LCC)remainsunclear.WehypothesizedthatCx43mightco-localizeandregulatetheLtypecalciumchannelcurrent(ICa,L).MethodsReal-timePCRandwhole-cellpatchclampwereusedtodetecttheexpressionofLCC1csubunitandthecurrentdensityofICa,L,beforeandafterCx43knockingdownrespectively.Theco-localizationofCx43withLCCwasinvestigatedbyco-immunoprecipitationandconfocalmicroscopy.ResultsKnockingdownofCx43significantlyinhibitedthecurrentdensityofICa,LthroughdecreasingthegeneexpressionofLCCα1cinculturedatrium-derivedmyocytes(HL-1cells).Cx43co-localizedwithLCCα1csubunitinatrialmyocytes.ConclusionsCx43regulatestheICa,LinatrialmyoctyesthroughLCC,representingapotentialpathogenicmechanisminatrialarrhythmias.

简介：IntroductionMyocardialischemiaandanginapectoriscanbecausedbyvariousmechanismssuchascoronaryatherosclerosis,vasospasmorcoronarymicrovasculardysfunction[1].Weherereportacaseofa56-year-oldfemalepatientwithahistoryofpreviouspercutaneouscoronaryinterventions(PCI)whoreportedrepetitiveattacksofrestingangina.Coronaryriskfactorsincludedhypertension,hypercholesterolemia(LDL=97mg/dLonatorvastatin),ex-smoker(ceased2013),andapositivefamilyhistory(fatalmyocardialinfarctioninfatheraged52yearsandbrother59years).

简介：目的:研究高脂血症与微量元素钙、镁、锌的关系.方法:受试者93例,分为正常对照组及观察组,受试者均测定血清微量元素钙、镁、锌.结果:观察组血清中钙元素含量与对照组虽有不同,但无显著差异(P>0.05);高胆固醇组血清镁含量低于正常对照组,差异显著(P<0.01).结论:血清中钙、镁、锌元素的水平与高脂血症有密切关系.

简介：目的：探讨元素与血脂间的关系以及元素、血脂对老年人高血压病的关系。方法：本文测定了39名老年高血压病患者和30名健康老年人的血清微量及宏量元素锌(Zn)、铜(Cu)、铁(Fe)、钙(Ca)、镁(Mg)、钠(Na)、及血脂甘油三脂(TG)、胆固醇(Tc)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋胆固醇(LDL-C)，并进行了均数t检验，简单相关性分析及胆固醇多因素逐步回归分析。结果：本文所测定的老年高血压病组的血清HDL-C水平下降，同时血清Zn含量也低于对照组，且多元逐步回归分析显示血脂与血清Zn、Cu、Mg均呈显著正相关，本文结果还显示HDL-C和TC与Cu，Cu／zn值及Mg都存在着一定相关关系。结论：老年高血压病患者血清中各元素之间，元索与血脂问都具有一定的内在联系。高血压病特别是老年高血压病，在预防及治疗上可以通过饮食调整来影响血清微量及宏量元素的总体水平及其之间的关系，从而影响血清脂质含量，以达到防治目的。