简介:BackgroundNoncompactionofventricularmyocardium(NVM)isararetypeofprimarycardiomyopathy.Thediseaseiscausedbythedisorderinthedensificationofthemyocardiumintheearlystageoftheembryoprocess.Themorphologicalcharacteristicsareprojectingtrabeculationintheventricleandthedeeptrabecularspaceinterlinkedwithventricularchamber.Inrecentyears,manystudieshavefoundthattheleftventriculargrowthassociatedgeneticmutationiscloselyrelatedtotheoccurrenceofNVM.Themostclinicalmanifestationssuchasheartfailure,thromboembolismandarrhythmiaarespecific.EchocardiographyisthemostcommonlyusedtechniqueforthediagnosisofNVM.Cardiaccomputedtomography(CT)scan,cardiacmagneticresonanceimagingandleftventricularangiographyareotherimportanttechniquesforitsdiagnosis.TheNVMpatientshavealongcourseofdisease,poorprognosisandahighrateofmisdiagnosis.Thisarticlereviewstheresearchprogressintheaspectsofepidemiologicalcharacteristics,geneticcharacteristics,clinicalmanifestations,pathophysiology,diagnosis,treatmentandsoon,inordertoprovidethebasisforthediagnosisandtreatmentofNVM.
简介:BackgroundMyocardialfibrosisisoneprocessofthevariousheartdiseases,whichleadstocommonpathologicalchangeswhenitdevelopstoacertainstage.Itisthemaincauseofventricularremodelingwhicheventuallyleadstodifferentdegreesofcardiacdysfunction,malignantarrhythmiasandsuddencardiacdeath.Manystudieshaveshownthatvariouscytokinesplayaveryimportantroleinthedevelopmentofmyocardialfibrosis.Thispaperreviewsthelatestresearchesontheroleofcytokinesinmyocardialfibrosis.
简介:Elevatedheartrateisamajorriskfactorforcardiovasculardiseases.Theinhibitoroffunnycurrent(I(f)),ahyperpolarization-activatedcyclicnucleotide-gatedchannelcurrent,ivabradineisanewagentselectivelyreducingheartratedevoidofothercardiovasculareffects,whichhascomeintothemarketinEuropeformorethan3years.Ithasbeenapprovedthatpureheartratereductionbyivabradinecanimprovemyocardialischemia,endothelialfunctionandmyocardialcontractilefunction.Long-termadministrationwillnotincreaseall-causemortality.Itstherapeuticvalueinstablecoronaryarterydiseasehasbeenverifiedinclinicalpractice,whileinotherfieldsofcardiovasculardiseasesstillneedsmoreevidence-basedmedicalresearch.Thisarticleisareviewaboutitsrecentresearchadvancesinexperimentalandclinicalstudies.
简介:CardiovascularimmunologyresearchinWuhanUnionHospitalbeganin1991.Anti-heartantibodiesindilatedcardiomyopathyandacuteviralmyocarditisbegantobereportedfrom1993.ItwasfoundthatanewautoantibodyagainstL-typecalciumchannelresultsinventriculartachycardiaandsuddendeathinpatientswithdilatedcardiomyopathy.ThroughtheInterventionStudyofDiltiazeminDilatedCardiomyopathy,diltiazemwasverifiedtoreducemortalityandthechronicheartfailurehospitalizationratesignificantlyinpatientswithdilatedcardiomyopathy.TheautoantibodiesagainstangiotensinIIreceptortype1andα1-adrenoceptorwereassociatedwiththeincreasedrecurrenceofanddeathfromstrokeinhypertensivepatients.Throughmanyclinicalandexperimentalstudies,thefunctionalimbalanceofT-cellsubsetswassuggestedtomediatemyocardialinjuryandchronicheartfailure,whichprovidedanewtheoreticalbasisforimmunoregulationtherapyforheartfailure.Thefirstantihypertensivepolypeptidevaccine(ATRQβ-001)wasinvented.Inadditiontotheseachievements,therewillbemoreresearchoncardiovascularimmunologyinWuhanUnionHospitalinthefuture.
简介:目的研究多普勒组织成像(DTI)法检测脉搏波速(PWV)与通过导管检测PWV相关性。方法30例行冠脉造影患者,测量主动脉两定点距离L,同时测量脉搏波传递时间(PWT1),并计算出PWV1,(PWV1=L/PWT1);30例患者并行DTI法测量电-机械时间(EMT)、左室射血前期(PEP)、求出脉搏波传递时间(PWT2),PWT2=EMT—PEP,再求出PWV2=L/PWT2。两种方法测得PWT1与PWT2,PWV1与PWV2分别行直线相关分析。结果PWT1为24.26±9.35ms,PWT2为23.81±8.91ms,二者之间无明显差异(P〉0.05),但具有显著相关性(r=0.939,P〈0.0001)。回归方程Y=0.986x+0.548。PWV1为14.28±5.33m/s,PWV2为14.47±5.40m/s,二者之间无明显差异(P〉0.05),亦具有高度相关性(r=0.928,P〈0.0001),回归方程Y=0.926x+0.881。结论DTI法是一种无创准确测量PWT及PWV方法。
简介:第九届国际脑血管痉挛(CVS,cerebralvasospasm)大会于2006年6月28日~30日在土耳其伊斯坦布尔举行,来自全世界200多位专家就近年CvS的基础研究、临床诊治、监测的进展进行了深入探讨。CVS广泛存在于动脉瘤破裂出血、脑外伤、手术等引起的蛛网膜下腔出血(SAH)中,是造成缺血性脑损伤的重要原因之一。资料显示在SAH患者中有20%~30%的患者因为CVS而导致不同程度的脑功能损害,但CVS还未受到临床医生及研究者的重视。近年来脑血管痉挛在基础研究、诊断、监护以及治疗方面均取得一定进展,在药物治疗方面,此次会议的一个重要结论就是具有坚实循证医学证据的钙离子拮抗剂尼莫地平仍然是脑血管痉挛防治的基本用药。
简介:高血压是一种常见的疾病,在我国慢性非传染性疾病中位列第一,患病率仍在迅速上升,与此相对,我国人群高血压的知晓率、控制率和治疗率仍处于较差水平。
简介:动脉夹层是指动脉壁层内的撕裂而导致血液成分通过破损的血管内膜进入血管壁,使血管壁分层,造成血管狭窄、闭塞或形成假性动脉瘤。当血流聚积在内膜及中层之间时造成管腔狭窄;当血肿主要累及中膜与外膜时则形成动脉瘤样扩张。脑动脉夹层(cervicocerebralarterydissection,CAD)是青年卒中的常见病因。在CAD患者中,颈内动脉夹层(internalcarotidarterydissection,ICD)较椎动脉夹层(vetebralarterydissection,VAD)更常见。CAD的病因并不是很清楚,病前的颈部外伤史常见,但不普遍。遗传因素,如Ehlers—Danlos综合征、Marfan综合征等可以促进CAD的发病。
简介:目的了解维持性血液透析(MHD)患者的血压波动规律及透析前高血压、透析中高血压、透-斤中低血压的发病情况。方法共纳入规律血液透析6个月以上患者72例,其中男性39例(54.17%),女性13例,年龄29-82(64.38+13.28)岁,透析龄0.5~20.0(4.12+4.28)年,均应用贝朗Dialog+透析机、LOPS18聚砜莫透析器、碳酸盐透析液治疗。4周内共计942例次透析治疗。录入患者一般情况、每次超滤总量及透析前、垂析中第1、2、3小时及透析后血压。结果MHD患者超滤量为0.5-5.2(3.00±0.85)L,有615例次透析前收高压(SBP)≥140mmHg,约占总计942例次的65.29%。波动规律为:透析前SBP较高为(150.35+23.73)mmHg,垂析中血压降低,透析后血压再次升高为(146.15±26.62)mmHg,但低于透析前(P〈0.01)。透析中高血压患旨发病规律为:透析前SBP低于非透析高血压患者(P〈0.01),透析第1小时血压下降,自第2小时起血压逐昕升高(P〈0.01),回血下机后血压显著升高(P〈0.01)。透析中低血压发作53例次,约占总例次的5.63%。吉论MHD患者高血压发病率高,控制率低。随着超滤量的增加,SBP逐渐下降,回血下机后,血压再次上.十,但仍低于透析前血压。超滤抵抗是透析中高血压的显著特点。
简介:随着人们对24h动态血压监测的认识和研究的深入,其临床应用也逐渐广泛,进而从其变化规律演变出一些相关术语,如杓型、非杓型、超杓型、反杓型及晨峰现象等[1].健康人24小时血压呈“两峰一谷”的昼夜节律变化,即2:00-3:00的谷和6:00-8:00、16:00-18:00的两峰.