简介：心肌桥综合征是指心脏上有肌桥横在冠状动脉上，导致心电图出现类似心肌缺血样改变。运动性晕厥是指由较剧烈运动诱发的晕厥。两者虽为不同的疾病，但心肌桥综合征可引起运动性晕厥，因此有必要把两者联系起来讨论。下面报道的为2例心肌桥综合征引起的运动性晕厥。

简介：BackgroundAcutecoronarysyndrome(ACS)isaleadingcauseofmortalityandmorbidityworldwide,whichcomprisesunstableangina(UA)andacutemyocardialinfarction(AMI),andtheinvestigationofbiologicalmarkerstoassessthosemostatriskofrecurrentcardiovasculareventsisnecessary.MethodsSixty-sixhealthycontrolpeopleand67casesofUApatientswereenrolledinGuangdonggeneralhospital.Enzymelinkedimmunosorbentassay(ELISA)wasusedtodetectthelevelofplasmaACTG2.Thereceiveroperatingcharacteristiccurve(ROC)wasusedtoanalyzethepredictionvalueofACTG2forUA.AccordingtotheaveragelevelofplasmaACTG2inUApatients,UApatientsweredividedintothelowACTG2group(2group(≥averagelevel),andthedifferencesinclinicalcharacteristicsbetweenthetwogroupswereinvestigated.ResultsTheELISAresultshowedthatthelevelofplasmaACTG2was67.823±58.479pg/mLinhealthypeople,whiletheplasmaACTG2was94.514±65.453pg/mLinUApatients,withasignificantdifference(P<0.05).ROCanalysisresultshowedthattheAreaundercurve(AUC)forthepredictionofUAwas0.653(95%CI0.559-0.747),withahighstatisticalsignificance,indicatingthatcirculatingACTG2maypossesshighpredictionvalueforUA.Inaddition,amongthe67UApatients,39wereallocatedtothelowACTG2groupand28tothehighACTG2group.ComparisonofthebaselinecharacteristicsbetweenthetwogroupsshowedthatpatientsinthehighACTG2groupwereolderthanthoseinthelowACTG2group.Inaddition,levelsofLipoprotein(a)(Lpa),Totalbilirubin(TBIL)andPro-BrainNatriureticPeptide(ProBNP)inthehighACTG2groupwerealsohigherthanthoseinthelowACTG2group.ConclusionsCirculatingACTG2couldsignificantlyincreaseinUApatients,whichmaybeusedasabiomarkerforthepredictionofUA.

简介：例1，男，69岁。1年来常于劳累后出现心前区烧灼样疼痛，伴胸闷、出汗。休息或含服硝酸甘油1～3min后症状缓解。近2月胸痛频繁，每天发作数次，常于夜间睡眠中痛醒，缓解方式同前。1998年5月入院。心电图检查正常。平板运动试验阴性。Holter记录到MV5导联ST段明显抬高10次，最高达5nm，每次持续1～2min，其中7次伴有烧灼样胸

简介：BackgroundNowadays,thestudiesmainlyfocusonthefunctionofdecreasingtheinflammatoryfactorandimprovingthefunctionsofendothelium,buttheeffectsofstatinsonventricularremodelingarerarelystudied.MethodsThe2-kindey,1-cliphypertensiverats(2K1C,Goldblatt)werepreparedwithSprague-Dawley(SD)rat.SDratswererandomlydividedintothreegroups:controlrats,hypertensiveratsandhypertensiveratstreatedwithatorvastatin(2mg·kg-1·d-1).After6weeks,systolicbloodpressure(SBP)wasmeasuredusingthetail-cuffmethod.TheplasmaconcentrationofangiotensinⅡandreninactivityweredeterminedbyradioimmunoassay.Theheartweight,theratioofleftventricularweightandbodyweightwascalculated.ResultsTheplasmaconcentrationofangiotensinⅡ(106.4±7.8)ng/Landreninactivity(20.6±2.4)ng/Lweresignificantlyincreaedinhypertensiveratscomparedwithnormalrats[(72.3±5.4)ng/Land(12.5±3.7)ng/L](P<0.01).Theheartweight(1.46±0.09)g,theratio3.54±0.19(×10-3)ofleftventricularweightandbodyweightinhypertensiveratswereobviouslyhigherthanthatinnormalrats[(0.98±0.07)gand(2.28±0.06)×10-3](P<0.01).Aftertreatmentwithatorvastatin,theplasmaconcentrationofangiotensinⅡ(68.3±6.9)ng/Landreninactivity(8.7±2.3)ng/L,heartweight(1.05±0.04)g,theratio2.36±0.07(×10-3)aboveweredecreasedsignificantly,therewerenodifferencebetweenthegroupofhypertensiveratsandthenormal.ConclusionsAtorvastatincandecreasetheratioofleftventricularweightandbodyweightandhastheeffectsoncardiovascularremodelinginhypertensiverats.

简介：目的探讨β2-微球蛋白（β2M）对周围动脉疾病的（PAD）的早期诊断意义。方法本文共收集：PDA[踝臂指数（ABI〈0.9）]患者63例,PDA组与ABI正常,无PDA临床表现的正常组73例,分别检测β2M,高敏C反应蛋白（hsCRP）,对两组临床资料进行对比分析。结果PDA组β2M及hsCRP值显著差高于对照组（P〈0.05）,但PDA组β2M更显著高于对照组（P〈0.001）。结论PDA组患者β2M值升高,是PDA的相关因素,此一研究结果认为β2M值升高亦为心血管危险因素有助于PDA的早期诊断。

简介：患者男，74岁，临床诊断：冠心病。心电图(图1)示窦性P波在同一导联形态相同，在V3导联呈双峰，峰距0.04s，PP间距不等，在Ⅱ导联上相差最大0.12s，每隔2个P波后跟……

简介：ObjectivesTostudyclinicalandcoronaryangiographicfindingsinpatientswithbothcoronaryheartdiseases(CHD)andtype2diabetesmellitus(T2DM).Methods215patientswithCHDconfirmedbycoronaryangiographywereinvolvedinthisstudy.Thepatientsweredividedintotwogroups:74CHDpatientswithT2DM(meanage64.7±8.2years,male/female47/27),and141CHDpatientswithoutT2DM(meanage66.2±9.2years,male/female100/41).Theclinicalfeaturesandthedatafromselectivecoronaryangiographieswerecomparedbetweentype2diabeticandnon-diabeticCHDpatients.ResultsComparedtonon-diabeticCHDpatients,thepatientswithbothCHDandT2DMsufferedmorefromacutemyocardialinfarction,silentischemiaandseverearrhythmias(P＜0.01,P＜0.05),andhadhigherserumtriglyceridesandapo-lipoproteinB,alongwithincreasedserumuricacid(P＜0.01,P＜0.05),increasedleftventricularenddiastolicdiameter(P＜0.01),anddecreasedleftventricularejectionfraction(P＜0.001).Comparedtonon-diabeticCHDpatients,thepatientswithbothCHDandT2DMsufferedmorefromtriplevesseldisease(P＜0.01),severecoronaryarterystenosis,completeocclusionsanddiffuselesions(P＜0.001).ConclusionsSevereclinicalmanifestation,leftventriculardysfunction,diffuseorcomplicatedlesionsofcoronaryarteriesweremorecommoninpatientswithbothCHDandT2DM,itsuggeststhatthetype2diabeticCHDpatientshavepoorprognosis.

简介：Themyocardialprotectionaffordedbyischemicpreconditioning(IPC)canalleviateischemia-reperfusioninjuryinnormalratheart.However,thismyocardialprotectionisseldomstudiedinthetype2diabeticratwithmyocardialischemiadisease.Inthisstudy,weaimedtoevaluatetheeffectsofATP-sensitivepotassiumchannels(KATPchannels)onIPCintheisolatedtype2diabeticratheartandtheroleofthesulfonylureagliclazide.MethodsStreptozotocin(STZ)-inducedtype2diabeticmaleWistarratswithorwithoutgliclazide(64mg/kgbodyweight,orally)andage-matchednon-diabeticcontrolratswereusedforallstudies.TheisolatedheartswereperfusedwithLangendorff'ssystemundertheconstantflow,pressureandtemperatureconditionswithKreb's-Henseleitsolution(K-H).After5minutesofbalanceperfusion,theseratswererandomlydividedintosixgroups:non-diabeticcontrolratswithoutIPC(CIR);non-diabeticcontrolratswithIPC(CIP);diabeticratswithoutIPC(DIR);diabeticratswithIPC(DIP);gliclazide-treateddiabeticratswithoutIPC(GIR);andgliclazide-treateddiabeticratswithIPC(GIP).GroupsCIR,DIR,andGIRweresubjectedto30-minglobalischemiaand60-minreperfusionforinductionofischemia/reperfusioninjury.GroupsCIP,DIP,andGIPweregiventhreecyclesof5-minischemiaand5-minreperfusionasIPC,andthenischemia/reperfusioninjuryprogramwasimplemented.Extentofischemia/reperfusioninjurywasmeasuredintermsofthereleaseoflactatedehydrogenase(LDH),creatinekinase(CK),andcreatinkinase-MB(CKMB)incoronaryeffluent.Afterperfusion,Kir6.2andSUR2AmRNAexpressionsinthemyocardialtissuewerecharacterizedbyfluorescentquantitativereal-timePCRmethod,andKir6.2andSUR2Aproteinexpressionswereassessedbyimmunohistochemistry.ResultInnon-diabeticcontrolrats,thereleaseofLDH,CK,andCK-MBincoronaryeffluentmarkedlydecreasedwithIPCcomparedwithNo-IPC(P<0.05),butnotindiabeticrats.However,ingliclazide-treateddiabeticrats,IPC-induceddecreaseintherele

简介：ObjectivesTheeffectsofcarvediloloncalciumcurrent(ICa)wereinvestigatedinisolatedadultratventricularmyocytes.MethodsICawasrecordedbyusingwhole-cellpatch-clamprecordingtechnique.ResultsCarvedilolreversiblyinhibitedICainaconcentration-dependentmanner,carvedilolat0.1,0.3,1and10μmol/LintheextracellularsolutiondecreasedpeakICaby1.52%,18.04%,37.34%and72.18%,respectively.Thesteady-stateinactivationcurveofICawasshiftedtomorenegativepotentials,whiletheactivationcurvewasnotaltered.Therecoveryfrominactivationwasshiftedtorightdirection,itcouldnotberecoveredcompletely.Inaddition,Pretreatmentofventricularmyocyteswithprazosinandpropranololcouldn'tblockthecarvedilol-inducedreductionofICa.ConclusionsCarvedilolinhibitsICainadultratventricularmyocytesbymechanismsinvolvingpreferentialinteractionwiththeinactivatedstateofcalciumchannel.

简介：目的：探讨2型糖尿病（T2DM）合并高血压与否对脂代谢、微血管病变、血液流变学的影响。方法：192例T2DM患者被分为血压正常组（A组，96例）和合并高血压组（B组，100例），对两组的一般情况、血压、脂代谢、微血管损害及血液流变学情况进行比较分析。结果：B组的血压（148±24）mmHg／（86±15）mmHg、胆固醇（6．0±0．9）mmol／L、血肌酐（70±21．1）μmol／L、血尿酸（343±81）μmol／L和低切粘度（11．02±2．3）均高于A组，有显著性差异（P〈0．05-〈0．01）。结论：T2DM和高血压病均可导致血脂代谢异常，微血管损害和血液流变学的改变，当T2DM合并高血压时，前述异常和损害加重，应及早控制。

简介：目的对中西医结合治疗在2型糖尿病患者中的治疗方式进行讨论。方法选取我院2013年2月-2014年2月间64例2型糖尿病患者,将其分为两组,1组进行常规治疗,2组在进行常规治疗的同时配合中药治疗,对两组患者的治疗效果进行比较。结果1组患者治疗后效果显著的为13例,占比例的40.6%,治疗有效的为14例,占比例的43.8%,治疗无效的患者为5例,占比例的15.6%。2组患者治疗效果显著的为23例,占比例的71.9%,治疗有效的为8例,占比例的25%,治疗无效的仅为1例,占比例的3.1%。结论中西医结合方式治疗2型糖尿病的效果显著,且安全性高,是一种值得推广的治疗方式。

简介：目的总结2例新生儿动脉导管支架植入术的护理经验.方法完善术前检查,用药护理,生命体征的观察,血氧饱和度的监测,尽早采取介入手术方法.术后密切监测生命体征,伤口渗血情况,尿色,足背动脉搏动情况,肢温情况,及时发现并处理并发症.结果病例1术后2个月院外死亡,考虑死亡原因为动脉导管支架再狭窄后的低氧血症.病例2半年后顺利进行2期外科手术.结论术后密切监测生命体征的变化,特别是血氧饱和度,及时发现并处理并发症是新生儿动脉导管支架植入术护理的关键.

简介：动脉粥样硬化（AS）是一种炎症性疾病，脂蛋白相关磷脂酶A2（lipoprotein-associatedphospholipaseA2，Lp-PLA2）是心血管疾病中一种新的炎症酶，能水解氧化低密度脂蛋白（LDL），产生溶血磷脂酰胆碱（lysophosphatidyl-choline，Lyso-PC）和氧化型游离脂肪酸（oxidizedfreefat-tyacids，ox-FA），促进动脉粥样硬化的形成和发展，其与临床疾病的关系日益受到关注。

简介：摘要目的探究对2型糖尿病患者实施延续护理的临床效果。方法将64例2型糖尿病患者作为研究对象，并随机将其分为对照组和观察组，给予对照组常规门诊护理，观察组在对照组基础上加用延续护理，对两组患者护理后的依从性进行评估。结果观察组32例患者饮食控制、运动疗法、饮食控制、自我检测状况明显要比对照组患者高，对比差异具有统计学意义（P＜0.05）。结论对2型糖尿病患者采用延续护理，能够明显提高病人的治疗依从性，提高患者的生活质量，在临床上值得大力推广。

简介：ObjectivesToevaluateantihypertensiveefficiencyandsafetyofanewdomesticofL-&N-typeCa^2+antagonist-eilnidipinewithimidaprilasapositivecontrol.MethodsAfter2weeks'placebowashingout,22patientsweretreatedwitheilnidipine5mgdailyand27patientsweretreatedwithimidapril5mgdaily.4weekslater,ifpatient'ssittingdiastolicbloodpressureisover90mmHg,his/herdosagewasdoubledforanother4weeks,theothersmeasuringupremainedtheirdosageunchangedforanother4weeks.Bloodpressure,heartrate,bloodandurineroutineexamination,serumglucose,serumchemicalexaminationincludingtotalcholesterol,triglyceride,HDL,LDL,transaminase,creatineetcandsidereactionswererecordedbeforeandafterthetrial.Datawereanalyzedstatistically.ResultsAfter8weeks'treatment,bloodpressurewassignificantlydecreased(P<0.05)inbothgroups,andthetwomedicineshadsimilarantihypertensiveeffects.Furthermore,thereducingofheartratewasstatisticallysignificantcomparedwithbaseline(P<0.01)inthecilnidipinegroup,butnotintheimidaprilgroup.Thenegativechronotropiceffectofcilnidipinehadlittleeffectoncontinuingthetherapy.Therewerenochangesonbloodandurineroutineexaminationandserumlipid,serumglucose,creatine,transaminaseandetcinbothgroups.Theirsidereactionsweremildandwell-tolerated.ConclusionsCilnidipinehasacon-vincingantihypertensiveeffectsimilartothatofimi-dapril.Especiallycilnidipinemaybeadministeredtopatientswithrelativelymildtachycardia.

简介：BackgroundAldosteroneblockerscouldreducetheincidenceofventriculararrhythmiasinmyocardialinfarction(MI)patientsbyregulatinghyperpolarization-activatedcyclicnucleotide-gatedchannel(HCN)expression.ButthemechanismunderlingHCNexpressionisunclear.MethodsEighteenratssurviving24hourspostMIwererandomlydividedinto3groups:MI,spironolactone,andspironolactone+antagomir-133(miRNA-133suppression).Shamgroupratshadasuturelooselytiedaroundtheleftcoronaryartery,withoutligation.HCN2andHCN4proteinandmRNAlevel,andmiRNA-133levelintheborderzoneofpost-MI1weekmyocardiumweremeasured.ResultsSpironolactonesignificantlyincreasedmiRNA-133levelsanddown-regulatedHCN2andHCN4atbothmRNAandproteinlevelsinpost-MIborderzonemyocardium.Antagomir-133reducedtheeffectsofspironolactoneonHCN2andHCN4proteinlevels.ConclusionsTheresultssuggestthatmiRNA-133isinvolvedinspironolactoneinducedHCNexpression,andpartiallycontributedtopost-MIventriculararrhythmias.

简介：目的观察胰岛素增敏剂文迪雅对老年2型糖尿病病人的疗效和安全性.方法选择血糖控制不佳,胰岛素水平高的老年2型糖尿病病人30例,用文迪雅片4mgqd治疗12周,观察治疗前后血糖及胰岛素的变化.结果治疗后FBG、PBG、GHbAlC、TG下降,与治疗前比较,具有显著性差异(P＜0.05),能显著降低FINS、PINS水平(P＜0.001),明显改善外周组织对胰岛素的敏感性,治疗后IAI增加,IRI降低,与治疗前比较具有显著性差异(P＜0.001),副作用主要为双下肢浮肿和低血糖反应,无肝肾功能损害及胃肠道反应.结论文迪雅降糖效果确切,能降低2型糖尿病病人空腹及餐后2小时血糖,改善外周组织对胰岛素的敏感性,副反应轻微,未见肝肾损害,在老年糖尿病病人中使用具有良好的疗效及安全性.

简介：我院自1996年7月～1998年12月共作冠脉搭桥术160例，术后病人均带气管插管返回监护病房(ICU)。其中6例病人常规拔除气管插管后，因某种原因行第2次气管插管，呼吸机辅助呼吸，占冠脉搭桥术病人的2．5％。现将第2次插管原因讨论如下。

简介：ObjectivesToexamineinvivointeractionsbetweenangiotensinⅡ(AngⅡ)AT1areceptor(AT1aR),angiotensin-convertingenzymes(ACE)andACE2usingsmallhairpinRNA(shRNA)gene-silencingmethodsinmicebrainstemnucleustractussolitarius(NTS).MethodsC57BLmice(n=8)wereusedasanimalmodel.MethodofmicroinjectioninthenucleusofNTSwasadopted.Aftertendays,micewerekilledandtheirbraintissuewerefixedandsectioned.TheexpressionlevelsofAT1aR,ACEandACE2mRNAatbothsidesofNTSwereexaminedbyinsituhybridization.Basedoncomparedt-test,thechangingformRNAexpressionwasexamined.ResultsAftertheexpressionofAT1aRmRNAwassignificantlyinhibited(61.6%±6.8%)byAT1aR-shRNA,itwasassociatedwithdecreasesinACE2mRNAexpressionfrom(1.05±0.12)μCi/mgto(0.74±0.09)μCi/mg(29.0%±14.5%,P<0.01)onthesamesideofthebrainstem.ACEmRNAexpressionwasconsistentatbothsides(0.50μCi/mg±0.09μCi/mgand0.53μCi/mg±0.08μCi/mg),withinsignificantdifference(P>0.05).ConclusionsThegenesilencingresultshowedthattherewereinteractionsbetweenbrainstemAT1aRandACE2.ACEmRNAexpressionwasnotalteredbyRNAinterferencetreatmentatAT1aR.

简介：患者男性,79岁.因"全身软困乏力1W"门诊以"冠心病"收入心内科.体检:T36.0℃,R20次/min,P50次/min,BP142/62mmHg,神志清楚,精神欠佳,双肺呼吸音清,双肺未闻及干湿罗音,叩诊心界不大,心率50次/min,律齐,心尖部可闻及2/6级收缩期吹风样杂音.