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：Arrhythmogenicrightventriculardysplasia/cardiomyopathy(ARVD/C)ischaracterizedbyfibro-fattyreplacementoftherightventricle.However,thefeasibilityandsignificanceofmyocardialfibrosisdetec-tedbydelayedenhancement(DE)using3.0Tmagneticresonanceimaging(MRI)in.ARVD/Cisseldomlystudied.MethodsTwenty-sevenconsecutivepatientswereprospectivelyevaluatedforARVD/C.Magneticreso-nanceimagingwasperformedona3.0Tscanner.Tenminutesafterintravenousadministrationof0.2mmol/kgofgadodiamide,DE-MRIwasobtained.DiagnosisofARVD/CwasbasedupontheTaskForcecriteriaandin-cludedMRIfindings.ResultsSeventeen(59%)of27patientsmettheTaskForcecriteriaforARVD/C.Rightven-tricleDEwasfoundinall(100%)ARVD/Cpatientscomparedwithnone(0%)ofthe10patientswithoutARVD/C(P<0.001).AdditionalleftventricularDEwasfoundin8/17ARVD/Cpatientswhilewithoutleftventricularmor-phologicalandfunctionalabnormalitiesdetectedbyechocardiographyorMRI.ConclusionsDEusing3.0TMRIcouldeffectivelydetectmyocardialfibrosisintherightandleftventricularmyocardiuminARVD/Cpatients.DetectionofmyocardialfibrosismayhaveanimportantclinicalsignificanceinARVD/Cdiagnosis.Histologicalleftventriclein-volvementmaybeeasilymissedbyechocardiography.

简介：

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：射频消融术作为一种成熟的治疗技术在临床应用已有近20年的历史，然而它毕竟是一种有创操作，与其有关的各种并发症时有发生，严重者甚至引起死亡。现将我科自开展该手术以来发生的3例猝死病例报告如下。

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：窦性心律时心电图出现的一种新的旁道现象假性ICRBBB.

简介：ObjectivesToevaluatetheeffectsofn-3fattyacidsonthecoronaryheartdiseasepatients.MethodsFromSeptember2007toMarch2008,60patientswithcoronaryheartdiseasewererandomlyassignedton-3fattyacidsgroup(groupN)andcontrolgroup(groupC).BothgroupsreceivedstandardcoronaryarterydiseasesecondarypreventiontreatmentandgroupNalsoreceivedeicosapentaenoicacid(EPA)1.8gplusdocosahexaenoicacid(DHA)1.2gperdayfor12weeks.Plasmatriacylglycerols,totalcholesterol,low-densitylipoproteincholesterol(LDL-C),high-densitylipoproteincholesterol(HDL-C)andbloodpressureweremeasuredbeforeandafterthestudy.ResultsPlasmatriacylglycerols,bloodpressureandLDL-ClevelwereloweringroupNaftern-3fattyacidstreatmentwhilenochangewasfoundingroupC(P<0.05).HDL-Clevelslightlyincreasedandtotalcholesterollevelslightlydecreasedaftern-3fattyacidsbutbothchangewerenotsignificant(P>0.05).ConclusionsN-3fattyacidshavebeneficialeffectsonthecoronaryarterydiseasepatients.

简介：肌纤维发育不良（Fibromusculardysplasia,FMD）是一种非炎症性、非动脉硬化性、阶段性及多灶性的血管病。该病多见于中年女性,主要累及全身中、小动脉,以肾动脉、颈内动脉颅外段和椎动脉多见。主要表现为动脉狭窄和闭塞,也可引起动脉瘤和夹层。其临床表现与受累动脉相关,肾动脉受累可表现为肾性高血压,颈动脉、椎动脉受累可表现为头痛、耳鸣、短暂性脑缺血发作或脑梗死等症状。我院神经内科收治3例肌纤维发育不良伴颅内外血管病变患者,报告于下：

简介：INTRODUCTIONWiththedevelopmentofeconomyandimprovementoflifequality,theincidencesofhypertension,hyper-cholesterolemia,diabetes,obesityandsmokinghavebeenincreasedinChina,whichhasledtoasignificantincreaseinthemorbidityandmortalityofcoronaryarterydisease(CAD)~1.SinceitwasintroducedintoChinain1984,coronaryintervention(PCI)hasdevelopedrapidlyandhasbecomethemajortreatmentofCADbecauseofitsuniquecharacteristicsofminimalinvasiveand

简介：目的比较CT薄层增强扫描与3D-DSA数据源在颅内动静脉畸形（AVM）3D打印数据重组中的效果。方法前瞻性选取5例AVM患者,Spetzler-Martin分级Ⅱ级3例,Ⅲ级2例。对其中2例采用256层螺旋CT薄层增强扫描,3例采用3D-DSA旋转成像,提取检查结果的DICOM原始数据,通过Mimics14.0软件进行数字化处理,并按1∶1比例进行3D打印,获得实体模型并进行效果比较。结果基于256层螺旋CT薄层增强扫描数据源的3D打印可获取颅骨及血管的图像信息,能显示最细直径0.9mm的血管,但AVM内部细支结构难于分辨;基于3D-DSA数据的3D打印,数字减影无颅骨数据信息,但血管分支情况显示更丰富,可显示最细直径0.5mm的血管。结论应用CT薄层增强扫描或3D-DSA数据源均可获得AVM畸形团3D重组图像,而3D-DSA显示AVM畸形团空间构造效果更佳,有助于术前治疗方案的设计及相应辅助工具的开发。

简介：

简介：

简介：为了推动我国急诊与危重症医学的全面发展，提升我国院前急救管理和服务水准，探索符合我国院前急救管理和运行的机制，“第3届首都急诊医学高峰论坛”（CFECCM）将于2010年8月27-30日在北京国际会议中心隆重召开。

简介：ObjectivesToinvestigatethechangesofβ3-adrenoceptor(β3-AR)mRNAexpressionintheratswithchronicheartfailure(CHF),andtoexploretheeffectofβblockers(βBs)onβ3mRNAexpression.MethodsThirty-fourratswererandomlydividedintoShamgroup(n=10)andheartfailuregroup(n=24).Ratmodelwasestablishedbyaorticconstriction.Thesurvivalratsinheartfailuregroupweredividedintoheartfailurecontrolgroup(HFgroup,n=6),metoprololgroup(METgroup,n=8)andcarvedilolgroup(CARgroup,n=8)threemonthsafteroperation.Metoprololtartartewasstartedorallywith12mg·kg-1·d-1,carvedilolwith6mg·kg-1·d-1,isometricsalinewasstartedinHFgroup.Afterthreemonthsofdrugtherapy,measurementofhemodynamics,indexofventricularmass,thelevelofβ3-ARmRNAexpressionwereperformed.ResultsComparedwithShamgroup,leftventricularendsystolicpressure(LVESP),andtheabsolutevaluesofmaximalrateofriseandfall(±dp/dtmax)ofleftventricularpressurewereallsignificantlydecreased(P<0.01),leftventricularenddiastolicpressure(LVEDP)wassignificantlyincreasedinHFgroup(P<0.01).ThehemodynamicparameterswereimprovedbyβBs,andcarvedilolwasmoreeffectivethanmetoprolol(P<0.01).TheindexofventricularmasswashigherinHFgroupthanMETgroup,CARgroupandShamgroup(P<0.01).βBssignificantlydecreasedtheindexofleftventricularmass(LVMI),andCarvedilolwasmoreeffectivethanmetoprolol(P<0.01).Theindexofrightventricularmass(RVMI)didnotchangeinMETgroup(P>0.05),butsignificantdecreasecouldbeseeninCARgroup(P<0.01).Thelevelofβ3-ARexpressioninleftventriclewasgreaterthanthatinrightventriclewhetherinthefailingheartorinthenon-failingheart.ComparedwithShamgroup,thelevelofβ3-ARmRNAexpressionwassignificantlyincreasedinHFgroup(P<0.01).Thelevelsofβ3-ARmRNAexpressionshowedaremarkabledecreaseinCARgroup(P<

简介：

简介：心力衰竭是一种常见病,亦是老年人常见的住院原因,严重心脏衰竭的病人,经常反复地在医院内进进出出,生活质量非常低,心衰也是引起老年人死亡的主要原因之一。富含欧米加-3脂肪酸的鱼类有鲑鱼、金枪鱼、鲭鱼、鲱鱼、沙丁鱼等,而且已经有充足的研究表明:欧米加-3脂肪酸有助于保护心脏。防止心脏病及中风的发作。

简介：3D打印技术被制造业誉为第三次工业革命,在21世纪已经在许多领域都展现了巨大的价值和潜力,在医学领域如骨科、口腔科、整形外科、神经外科等都得到了广泛的应用.3D打印的开展应用也为血管疾病的诊治提供了新的方法,本文综述介绍3D打印技术在血管疾病诊治中的应用现状及未来发展趋势.

简介：ObjectivesTostudytheeffectoflatereperfusiononcaspase-3activityofischemicmyocardiuminrabbitanditssignificance.Methods24adultrabbitswererandomlydividedinto3groups:Sham(S)withoutligationofcoronaryartery,LateReperfusion(LR)withligationfor3hoursfollowingreleasefor3hoursandPersistentIschemia(PI)withpersistentligationofcoronaryarteryfor6hours.Allanimalsweresacrificed6hoursafterthebeginningoftheexperiments.BorderregionofinfarctedmyocardiumwereincisedforanalyzingtheconcentrationofSOD,MDA,GRandtheexpressionofFADD,Caspase-3andtheapoptosisindex(AI).ResultsComparedwiththeShamgroup,LRandPIgroupexhibitedmuchhigherMDA,FADD,Caspase-3,AIandmuchlowerSOD,GR(allP<0.01).ComparedwiththePIgroup,LRgroupexhibitedhigherMDA,FADD,Caspase-3,AIandlowerSOD,GR(allP<0.05).ConclusionsLatereperfusionmarkedlyenhancedtheCaspase-3activityandthenthenumberofapoptoticcardiomyocyteinborderregionofinfractedmyocardium,whichindicatedtheexistenceoflatereperfusioninjury.ThemechanismmayinvolvethehighoxidativestressstateandexpressionofFADD.

简介：目的探讨脑梗死患者同型半胱氨酸（Hey）代谢相关酶胱硫醚β合酶（CBS）基因T833C位碱基突变与脑梗死发病的相关性。方法对67例经头部CT或MRI证实为脑梗死的患者（脑梗死组）和31名健康对照者（对照组），应用聚合酶链反应（PCR）扩增法检测CBS基因T833C多态性，采用高效液相色谱法测定血清Hcy水平。结果在脑梗死组有9例CBS基因纯合子突变，28例为杂合子突变；对照组3名为纯合子突变，5名为杂合子突变。两组基因型频率分布差异亦有显著意义，X^2=11．429，P〈0．01；脑梗死组C等位基因频率为34．33％，T等位基因频率为65．67％，与对照组比较差异有显著意义，，=8．978，P〈0．01。CBS基因杂合突变者血清Hey浓度显著高于正常基因者（t=4．612，P〈0．01）。脑梗死组患者血清Hey浓度为（23±7）nmol／ml，显著高于对照组（13±4）nmoL／ml，两组比较差异有显著性（t=8．826，P〈0．01）。结论Hey血症是脑梗死的独立危险因素，而CBS基因T833C点突变可能是其发病的重要遗传因素。