简介：BackgroundApolipoprotein(apo)A-Visanovelmemberoftheapolipoproteinclusterinvolvedintriacylglycerol(TG)homeostasis.IthasreportedthatAPOA5genepolymorphismsiscorrelatedwitharterioscleroticdiseases.However,ThisassociationisunknownonChinesepatientswithatheroscleroticcerebralinfarction.ThepresentstudyaimedtoelucidatetherelationshipofAPOA5-1131T>Candarterioscleroticcerebralinfarction(ACI)aswellasthelevelsofserumlipids.MethodsPolymerasechainreaction-restrictionfragmentslengthpolymorphisms(PCR-RFLP)analysis,enzymaticandimmunoturbidimetrymethodswereusedtomeasure-1131T>Cgenotype,allelefrequencyaswellasplasmalipidlevelof90ACIpatientsand221healthysubjectsofHanChinese.ResultsInACIgroup,thelevelofTGinalleleCcarrierswashigherthanthatofnon-Ccarriers(P<0.05).ThefrequencyofalleleCinACIgroupwashigherthaninhealthygroup(χ~2=5.568,P=0.018).Exceptsex,ageandBMI,thelevelsoftotalcholesterol(TC),triglycerides(TG),highdensitylipoproteincholesterol(HDL-C),low-densitylipoproteincholesterol(LDL-C),APOA1andAPOBinACIgroupdistinctivelywerehigherthanthoseinhealthygroup.ConclusionTheAPOA5-1131alleleCisassociatedwiththehighlevelofTGinACIpatients,whichisprobablylinkedwithACIdangerofChineseHan.

简介：T1mappingusingcardiovascularmagneticresonance(CMR)introducesnoveltechniquesformyocardialtissuecharacterizationtodetectandquantifydiseaseprocessesoccurringatthemicroscopiclevel.EventhoughT1mappinghaslimitedspatialresolution,cellularandmolecularchangesoccurringwithineachvoxelcanaffecttheaggregateT1signalrenderingthemquantifiable.TheestimatedT1-basedparametersquantifiedona“map”demonstratethespatiallocalizationofthesechangeswherebyeachpixelexpressesthequantitativevalueofthatparameter.Thisquantificationpermitsdetectionofdiffusediseaseevenifitisnotdirectlyvisible.Ratherthanrelyingonnonspecificfunctionalmeasures,T1mappingfocusesonintrinsicchangesofmyocardialcompositionthatadvancesunderstandingaboutspecificdiseasepathways.Thesechangesinmyocardialtissuecompositioninformdiagnosisandprognosis.T1mappingencompassestwokeyparameters:native(i.e.,precontrast)T1andextracellularvolumefraction(ECV)derivedfromadditionalpostcontrastT1andbloodT1measurements.Theseadvancesintroducenewtoolstodetectfocalanddiffusemyocardialderangementsoccurringincardiacdiseasethatcanbeotherwisedifficulttodetect.T1andECVmappingfosterprecisionmedicineandpersonalizedcare,promisingtoimprovepatientoutcomesthroughtargetedtherapy.CapitalizingontheopportunitiesintroducedbyT1mappingandECVrequiresfurtherinvestigation.

简介：

简介：患者女,25岁.因与邻居发生争吵,自服强痛定20片,约30min后发生头晕、恶心、呕吐、困倦、腹胀、心前区不适,被同事发现后,随即送院诊治.

简介：目的探讨ST—T改变的鉴别方法及诊断意义。方法对210例患者除作心电图（ECG）外井做血生化（血脂、血糖、肝肾功能、心肌酶谱、甲状腺功能测定系列等）、超声心动图、心脏X线等检查，随机抽取54例行试验性治疗，即给予50％G．S250ml加复方丹参注射液20ml，生脉注射液100ml均1／d，10d。再规律休息1w后对比治疗前后ECG。结果54例治疗前后ECG比较无明显变化，并随访3—12个月无一例发生心脏事件，随机抽取32例ECG并做多帧前后比较差异无统计学意叉。结论本组病倒经临床检查排除药物影响、器质性心脏病及继发性心脏病。试验性治疗ST—T无改变，提示此组人群中ST—T改变为非特异性的。

简介：冠心病是以冠状动脉粥样硬化为基本病变,引起冠状动脉管腔狭窄的缺血性心脏病.大多数冠心病患者,在清醒或睡眠状态中可出现缺血性ST-T改变及各种类型的心律失常.如在慢性冠状动脉供血不足的基础上发生心绞痛,可出现显著的ST-T改变或ST-T伪改善状态.

简介：

简介：以往Q-T间期缩短的报道很少，特别是心肺复苏后伴Q—T间期缩短更少，值得人们关注。现将近期观察到的1例报告如下。

简介：患者女，14岁，因精神紧张突然晕倒数分钟，发作后1d来院就诊。体检：T36.5℃，BP110／70mmHg，大小便正常，电解质均在正常范围，听诊：心律不齐，可闻及早搏，各瓣膜区未闻及病理性杂音。……

简介：目的评价ST-T改变与超声心动图(UCG)检查结果.方法对180例患者常规12导联记录ST-T改变进行统计分析,并与UCG检查对比.结果ST-T改变者中89例(49.4%)UCG示室间隔与左室后壁节段性运动减低,有的丧失运动或收缩期增厚;15例(8.3%)示主动脉硬化,主动脉内径增宽,运动僵硬,重搏波消失;9例(5%)示主动脉瓣钙化,回声增强,5例(2.78%)示左室腔假腱索;余72例未显示主动脉及心内结构异常.结论UCG比心电图对心肌缺血更敏感,室壁运动异常是心肌缺血的唯一指标.

简介：目的探讨3.0TMR心肌灌注成像（MRmyocardialperfusionimagingMRMPI）检查技术应用及方法。方法对25例冠脉CTA确诊的冠心病患者行MR首过心肌灌注、延迟增强成像,经两位高年资医师以双盲法对图像质量进行评价分析。结果21例图像质量达到诊断要求,21例受检者狭窄度≥50%的冠脉共34支中,29支显示首过灌注减低,9支显示延迟增强,其中心肌透壁增强4例,非透壁增强5例。4例图像质量不能达到诊断要求。结论在控制好受检者心率及呼吸,掌控好技术要点的情况下,MR心肌灌注成像完全可以得到符合诊断要求的图像,有效评价心肌缺血情况及程度,为冠心病的临床诊断及合理治疗提供可靠的依据。

简介：目的分析心向量图T环形态改变，探讨T环改变对冠心病的诊断价值。方法对心电图ST-T正常的45例冠心病(A组)与45例健康者(B组)做VCG检查，分析额面(F面)、右侧面(SR面)、横面(H面)T环形态改变。将T环形态改变分为8种类型，仅1种改变为单纯型，2种或2种以上改变为复合型。结果A组9例呈单纯型，36例呈复合型。其中T环运转相反(46.7％)、T环长／宽值缩小(33.3％)、QRS／T值增大(33.3％)、T环振幅过大(17.8％)、QRS-T夹角增大、畸形T环(11.1％)呈单纯型与复合型2种形式；T环双支对称(17.8％)、线型T环(15.6％)仅呈复合型。B组有8例呈单纯型T环改变，余37例T环形态正常。其中QRS／T值增大(2.2％)、T环振幅过大(6.7％)、QRS-T夹角增大(8.9％)与A组差异分别为P＜0.01、P＞0.05、P＞0.05。后2种虽然与冠心病组差异不显著，但属正常变异。B组其它类型改变均无。P＜0.01。结论心向量图T环形态改变对冠心病正常心电图患者心肌缺血的诊断有重要价值。

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简介：Bothendotheliallipasegene(LIPG)584C>T(rs2000813)polymorphismandalcoholconsumptionmodulateserumlipidlevels.Buttheirinteractionsonserumlipidprofilesarenotwellknown.ThepresentstudywasundertakentodetecttheinteractionsofLIPG584C>Tpolymorphismandalcoholconsumptiononserumlipidlevels.GenotypingoftheLIPG584C>Twasperformedin763nondrinkersand520drinkersaged15-85.Interactionsbetweenthegenotypesandalcoholconsumptionwereassessedbyusingacross-productterm.Thelevelsofserumtotalcholesterol(TC),triglyceride(TG),high-densitylipoproteincholesterol(HDL-C),apolipoprotein(Apo)AI,andtheratioofApoAItoApoBwerehigherindrinkersthaninnondrinkers(P<0.01forall).Therewasnosignificantdifferenceinthegenotypicandallelicfrequenciesbetweennondrinkersanddrinkers.ThelevelsofserumTC,HDL-CandApoAIinnondrinkersweredifferentamongthethreegenotypes(P<.05-.01).ThesubjectswithCTgenotypehadhigherserumTC,HDL-CandApoAIlevelsthanthesubjectswithCCgenotype.ThelevelsofserumHDL-CandApoAIindrinkersweredifferentamongthethreegenotypes(P<.001andP<.05;respectively).TheindividualswithTTgenotypehadhigherserumHDL-CandApoAIlevelsthantheindividualswithCCandCTgenotypes.ThelevelsofTCinnondrinkerswerecorrelatedwithLIPG584C>Tallele(P<.05),whereasthelevelsofTGandHDL-CwereassociatedwithLIPG584C>Talleles(P<.05)andgenotypes(P<.05);respectively.ThepresentstudysuggeststhatthesubjectswithTTgenotypebenefitedmorefromalcoholconsumptionthanthesubjectswithCTandTTgenotypesinincreasingserumHDL-CandApoAIlevels.

简介：患者女性，40岁。反复心悸晕厥20年再发1天入院。其父在20多岁时猝死。入院时查体：血压120／80mmHg，心率640：／分，律齐，未闻及杂音，入院后查心肌酶学CTnI均正常。查心电图（图1A）示：Q—T间期延长，为0．58s。入院后给予β受体阻断剂治疗，入院期间反复发作尖端扭转型室性心动过速（图1B）。给予利多卡因及电除颤治疗后稍稳定。临床诊断：家族性Q—T间期延长综合征。后患者反复发作室性心动过速。转上级医院行起搏器加上β受体阻断剂治疗。随访未再发作晕厥。

简介：

简介：先天性Q—T间期延长综合征（LQTS）系指原因未明的以Q—T间期延长、先天性耳聋（或无耳聋）、室性心律失常、反复发作性晕厥和偶有猝死为特征的一组综合征。它是一种少见疾病，人群发病率约为1／30万，伴耳聋型的患病率约为1．6／100万-6／100万，在耳聋儿童中本征发病率约0．25％-1．00％。本征多见于青少年，女性为男性的2倍。

简介：患者男性，74岁。因腹泻半月伴全身乏力1周入院。既往有糖尿病史。查体：血压110／60mmHg，一般情况差，老年慢性病容。神清、表情淡漠，反应迟钝、全身皮肤弹性差、心界不大、心率74次／分，律齐。各瓣膜听诊区未闻及病理性杂音、两肺无明显异常、腹软，肝、脾未触及，双下肢无水肿。主要实验室检查：血钾1．83mmol／L、钠144．9mmol／L、氯98mmol／L，空腹血糖8．34mmol／L。查心电图（图1）示：窦性心律，Q—T间期延长达0．56s。临床诊断：糖尿病伴胃肠功能紊乱，低血钾。

简介：The5thChina-JapanJointHypertensionSymposiumwasheldonNovember6th,2002inGuangdongCardiovascularInstitute,GuangdongProvincialPeople’sHospital,Guangzhou,China.Therewereatotalof96paperspublished(includedspeciallectures,oralpresentations,posters).Almost200cardiologists,whocamefromJapanandChina,attendedthesymposium.

简介：<正>随着介入心脏技术的不断进展,对以ST-T改变为主的急性心肌梗死(AMI)心电图与冠状动脉病变之间关系有了新的认识。本文报告1例无明显ORS变化的AMI如下。