学科分类
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487 个结果
  • 简介:为了从期刊文献的学科属性实现族性检索,为文章的分类统计创造条件,本刊2005起均对具有文献标识码的文章采用《中国图书馆分类法》(第四版)进行分类后。标识分类文章一般标识1个分类,多个主题的文章可标识2个或3个分类;主分类排在第一位,多个分类之间应以分号分隔。希望有条件查询的作者在来稿时自行标明分类

  • 标签: 中图分类号 期刊文献 《中国图书馆分类法》 分类统计
  • 简介:Amongallcongenitalheartdisease,Ebsteinanomalyisthelesionwiththewidestspectrumofpresentation.Itcanpresentasearlyastheneonatalperiodwhereimmediateinterventionisoftenneededtotheadultwithnodiscernablesymptoms.Itisalsoonewhereoveralloutcomegreatlyrelatestoageatpresentation.Generally,presentationintheneonatalperiodisassociatedwithpooroutcomeswhilepresentationbeyondtheneonatalperiodhasexcellentoutcomeswithlowoperativemortality.ItisthusapparentthatunderstandingeveryaspectoftheanatomyandphysiologyofEbsteinanomalyandhowitmanifestsclinicallyisparamounttosuccessfultreatment.ThepurposeofthisreviewistooutlinethecurrentconceptsandstrategiesinthesurgicalmanagementofEbsteinanomaly,andtodiscussthecurrentexpertconsensusonhowbesttotacklethiscongenitalheartdiseaseatdifferentagesofdiagnosis.

  • 标签: EBSTEIN EBSTEIN ANOMALY CONGENITAL surgical management
  • 简介:Hypertensionisaleadingriskfactorforcardiovasculardisease,theleadingcauseofdeathandmorbidityinoursocietyandonaglobalscale.Majorcomponentsofcardiovasculardiseaseincludestroke,coronaryarterydisease,heartfailure,andchronickidneydisease,inallofwhichhypertensionplaysamajorrole.Theriskofthesecomplicationsincreasesdirectlyandlinearlywithsystolicbloodpressurestartingat115mmHg.Althoughusuallyasymptomatic,hypertensionisreadilydetectableonphysicalexaminationandisamenabletobothlifestylemodificationandpharmacologictreatmentinmostpatients.However,largeproportionsofthehypertensivepopulationremainundetectedandundertreated.Numerousguidelineshavebeenissuedduringthepastfewdecadestopromotedetectionandoptimaltherapy.Despitetheincreaseinriskwithsystolicbloodpressuregreaterthan115mmHg,thegenerallyacceptedthresholdfordiagnosisandtreatmenthasbeensystolicbloodpressuregreaterthan139mmHganddiastolicbloodpressuregreaterthan80mmHgbecauseuntilrecentlytreatmenttolowerlevelshasbeenassociatedwithanunfavorablerelationbetweenclinicalbenefitandharm.Inthepastseveralyears,newguidelines,advisories,commentaries,andclinicaltrialshaveprovidedevidenceforapotentialchangeincurrentrecommendationsforthemanagementofhypertension.Inthisregard,thelong-awaitedeighthreportoftheJointNationalCommitteeonthePrevention,Detection,Evaluation,andTreatmentofHighBloodPressurerecommendedpatientsolderthan60yearsbetreatedtoasystolicbloodpressureoflessthan150mmHg,whichhasgeneratedconsiderablecontroversyandcaution.ThestrikingfindingsoftheSystolicBloodPressureInterventionTrial(SPRINT)havereceivedconsiderableattentionbecauseofthedemonstrationthatintensivetherapytoatargetsystolicbloodpressurebelow120mmHgdecreasescardiovascularmortalityandmorbiditymorethanlessintensivetreatmenttoatargetsystolicbloodpressurebelow140mmHg

  • 标签: HYPERTENSION JNC 7 JNC 8 CARDIOVASCULAR
  • 简介:Thispaperreviewscurrentrecommendationsontheappropriateevaluationandmanagementofcardiacarrhythmiasinthepregnantpatient.Mostarrhythmiasduringpregnancyarebenignandrequirenointervention.Whenrequired,thedecisiontotreatshouldbebasedonsymptomseverityandtheassociatedrisktomotherandfetusposedbypotentiallyrecurringarrhythmiaepisodesthroughoutthepregnancy.Anytreatmentstrategyinthispatientpopulationhasinherentrisktobothmotherandunbornchild.Beforetheinitiationofanyintervention,documentationofaclinicalarrhythmiaandcorrelationwithclinicalsymptomsshouldbeobtained.Thereisnoroleforempirictherapy.

  • 标签: ARRHYTHMIAS PREGNANCY PREGNANCY and HEART disease
  • 简介:Heartfailureposesanincreasingproblemforglobalhealthcaresystems.Theepidemiologicaldatawhichhavebeenaccruedoverthelast30yearshavepredominantlybeenaccumulatedfromexperiencewithinNorthAmericaandEurope.TheEuropeanexperienceinheartfailure,althoughsimilartothatinNorthAmerica,hasrecentlydemonstrateddifferencesinhospitalizationwhichmayunderliethedifferencesbetweenhealthcaresystemconfigurations.Despitethepredictedincreaseinthenumberofpatientsaffectedbyheartfailure,overthelast30yearsaclearmanagementalgorithmhasevolvedfortheuseofpharmacotherapies,device-basedtherapies,andmechanicaltherapies,includingleftventricularassistdevicesandcardiactransplantation.Althoughthetreatmentofsuchpatientshasbeenclearlydelineatedinnationalandinternationalguidelines,theunderuseofallavailableandappropriatetherapiesremainsasignificantproblem.ThepurposeofthisreviewistoprovideaEuropeanperspectiveonmanagementofheartfailure.

  • 标签: HEART failure EUROPE pharmacotherapies device-based THERAPIES
  • 简介:Iatrogenicaortocoronarydissection(IACD)isararebutpotentiallylife-threateningcomplicationduringcoronarycatheterizations.Althoughtheincidencewasrelativelylow,thedissectionoftenleadstoprocedurefailurewithincreasedriskofmyocardialinfarctionanddeath.IACDismainlycausedbydisruptionofintimaattheostiaofleftorrightcoronaryarteryduringinterventionalprocedures,andappearsasluminalfillingdefectsorpersistenceofcontrast(“extraluminalcap”)orintimaltearoutsidethecoronarylumen.Dissectioncoulddisseminateantegradelyandleadtosubtotalortotalocclusionofthecoronarylumen.Similarly,itcouldextendretrogradelyintothesinusofValsalvaandcusp,oreventheascendingaorta,aorticarch,ordescendingaorta,leadingtohemodynamiccollapse.EarlyidentificationandpromptmanagementiscrucialtotheprognosisofpatientswithIACD.Immediatebail-outstentingshouldbeperformedasrapidlyaspossibleinmostcasesofseveredissection,evenwhensignificantpropagationhasalreadyoccurred.Surgeryshouldonlybeconsideredwhenstentingfailedtosealthedissectionandthepatientshadhemodynamiccompromise.

  • 标签: CORONARY catheterizations COMPLICATION DISSECTION IATROGENIC diseases
  • 简介:Managementofrheumaticmitralregurgitationinawomancontemplatingpregnancypresentsuniquechallengesfortheclinician.Whentaskedwithtakingcareofthistypeofpatient,attentionneedstobepaidtothepatient’sfunctionalstatustodetermineifsymptomsarepresent.Inadditiontothisclinicalassessment,transthoracicechocardiographyisalsocritical.Itprovidesinsightintotheetiologyofthemitralregurgitation,assessesforthepresenceofconcomitantmitralstenosisorothervalvularabnormalities,characterizestheseverityofmitralregurgitationthroughanintegrativeapproachandidentifieshighriskfindingsincludingprogressiveleftventricular(LV)dilationandLVdysfunction.SurgicalinterventionisrecommendedforsymptomaticpatientsandinasymptomaticpatientswithevidenceofprogressiveLVdilationandaLVejectionfractionoflessthan60%.Whilethepresenceofpulmonaryhypertensionandatrialfibrillationhavebeenshowntoberiskfactorsindegenerativemitralregurgitation,thesamehasnotbeendemonstratedinrheumaticmitralvalvedisease.Whilemitralregurgitationmaybereasonablywelltoleratedduringpregnancy,symptomaticpatientsareathigherriskforadversematernalandfetaloutcomes,andtherefore,itisrecommendedthatmitralvalvesurgerybeperformedpriortopregnancy.Oncethedecisionhasbeenmadetoproceedtosurgery,mitralrepair,performedataHeartValveCenterofExcellenceisrecommendedifpossibleduetoimprovedoutcomes.Mitralvalverepairispossiblein>80%casesofrheumaticmitralregurgitation.Ifrepairisnotpossible,replacementwitheitherabioprostheticormechanicalvalvearereasonableoptions.Thereareadvantagesanddisadvantagestoeachapproachandthechoiceofprosthesisshouldbeashareddecisionbetweenthepatientandhertreatmentteam.

  • 标签: MITRAL REGURGITATION valvular HEART disease
  • 简介:Ventriculartachycardia(VT)inthepresenceofstructuralheartdiseaseisassociatedwithsuddencardiacdeathandwarrantspromptattention.Implantablecardioverterdefibrillators(ICDs)whilehighlyeffectiveinterminatingsustainedventriculararrhythmiasandreducingmortality,havenoeffectonthearrhythmiasubstrateandrecurrentshocksforVTterminationoccurinapproximately20%ofpatients.Shocksworsenqualityoflifeandareassociatedwithprogressionofheartfailureandincreasedmortality.Antiarrhythmicdrugs,mainlyintheformofbeta-blockersoramiodarone,aremoderatelyeffectiveinreducingICDtherapiesbutdrugintoleranceandserioustoxicitiesofamiodaronenecessitatedrugcessationinaquarterofpatients.CatheterablationhasemergedasaneffectivetreatmentforcontroloffrequentVTepisodesandcanbelifesavingincasesofincessantVTorVTstorm.Asexperienceincreases,itisbeingusedincreasinglyearlier,ratherthanalastresorttherapy.Efficacyvarieswiththenatureoftheunderlyingheartdisease.Intramuralarrhythmiasubstrateandfailuretocreatepermanentablationlesionsremainchallengesandrepeatproceduresarenecessaryinathirdtoahalfofpatients.ForidiopathicVTsorPVCsthataresymptomaticorworsenLVfunction,catheterablationisoftenaneffectivetherapy.

  • 标签: VENTRICULAR TACHYCARDIA ablation IDIOPATHIC VENTRICULAR TACHYCARDIA
  • 简介:Accordingtothemostrecentepidemiologicaldata,theprevalenceofhypertensionrangedfromabout25%inChineselivingeitherinthemainlandorinTaiwanandKoreans,toapproximately40%inMongolians.Thecontrolrateofhypertensionwasabout35%inKoreansandJapanese,24%inMongolians,andlessthan10%inChinese.Fourplacebo-controlledtrialsinChinaunequivocallyprovedthatantihypertensivetherapymaypreventstrokeandothercardiovascularcomplicationsinhypertensionorpatientswithahistoryofstrokeortransientischemicattack.Fouractively-controlledtrialsinJapandidnotshowsignificantdifferencebetweenvariousclassesorcombinationsofantihypertensivedrugs.TwotrialsthatcomparedintensivewithlessintensivebloodpressurecontrolinelderlyJapanesehypertensivepatientsdidnotshowfurtherbenefitofcontrollingsystolicbloodpressuretoalevelbelow140mmHgincomparisonwithbloodpressurecontroltoalevelof140mmHgorabove.Thesetrialsthatcomparedvariousclassesofantihypertensivedrugsorintensivewithlessintensivebloodpressurecontroloftenhadsmallsamplesizeandhenceinadequatepowertodetectmodestormoderatebenefit.ThereisstillaneedforhighqualityoutcometrialdatainEastAsians.

  • 标签: HYPERTENSION EPIDEMIOLOGY OUTCOME trials EAST ASIAN
  • 简介:23例皮肌炎的心电图表现王俐,李玉光,张元春皮肌炎是一种原因不明的肌肉炎性病变,伴有独特的皮肤表现。年近来,心脏受累的发生率在渐渐升高,本文就199o年-1995年所见23例皮肌炎患者心电图表现报告如下:一般资料男8例,女15例。年龄毛岁一68岁,平...

  • 标签: 皮肌炎 心电图表现 房室传导阻滞 心动过速 平滑肌 左心室肥大
  • 简介:Sinceitsoriginaldescription,theFontanoperationhasbeenwidelyusedforthepalliationofchildrenwithsingleventriclephysiologyandhasresultedinanincreasingnumberofthesepatientssurvivingtoadulthood.TheFontanoperationisauniqueapproachtocreateacirculationinserieswithouttwodistinctpumpingchambers.AlthoughtheFontanoperationincreasedthesurvivalratesofpatientswithsingleventriclephysiology,itcarriesaninevitableriskoflong-termmorbiditiesthatimpactstheoutcomesandqualityoflifeinthesepatients.Inthisreview,wediscussthechallengesresultingfromtheuniquepathophysiologyofFontancirculationandproposemanagementstrategies.

  • 标签: FONTAN SINGLE VENTRICLE
  • 简介:目的:总结三房心临床特点、合并畸形及影像学诊断特点。方法:1993年1月至2005年6月共收治23例三房心患者,男13例,女10例,年龄0.3~38(9.6±10.0)岁。均为左型三房心,其中21例获得手术证实,完全型15例,部分型6例。心电图检查:电轴右偏18例,电轴偏左1例,电轴正常4例。胸片检查:18例肺血增多。结果:术前经超声检查确诊12例(52.2%),10例行心导管确诊4例(40%)。21例16例(76.2%)合并其它畸形,合并房间隔缺损14例(66.7%)、部分肺静脉异位引流6例(28.6%)、肺动脉瓣狭窄3例(14.3%),永存左上腔3例(14.3%)。结论:三房心临床表现多样,合并畸形发生率较高,彩色超声心动检查有较高诊断价值。心导管检查对合并畸形诊断率较高,对合并畸形者强调术探查。

  • 标签: 三房心 超声心动描记术 心血管造影术
  • 简介:Congenitalheartdisease(CHD)-associatedpulmonaryarterialhypertension(PAH)includesaheterogeneouspatientpopulationthatcanbecharacterizedbytheunderlyingcardiacmalformation.CHD-associatedPAHhasanestimatedprevalenceof5–10%inadultpatients,withanincreasingnumberofpatientssurvivingtoadulthoodbecauseofadvancesinthesurgicalmanagementandthedevelopmentofpulmonaryarterialhypertension(PAH)-targetedpharmacotherapy.Althoughlimiteddataexist,targetedPAHpharmacotherapyhasproventobebeneficialinpatientswithCHD-associatedPAH,withobservedimprovementinfunctionalclass,increaseinexercisecapacity,andimprovementinqualityoflifeandcardiopulmonaryhemodynamics.Additionally,therehasbeenincreasinginterestinthe“treat-to-close”strategy.PAH-targetedpharmacotherapymaybeusedtooptimizecardiopulmonaryhemodynamicssoastoimprovepatients’operabilityinrepairingthecardiacdefect.Althoughtherehavebeensignificantadvancesinthemanagementofthisdiseasestateinthepast2decades,mortalityremainshigh,andongoingclinicaltrialsareneededtobetterunderstandthetreat-to-closestrategy.

  • 标签: pulmonary ARTERIAL hypertension congenital heart disease
  • 简介:Despitethedevelopmentofnoninvasivetoolsasechocardiography,right-sidedheartcatheterizationremainsanintegralpartofthecardiovascularevaluation.Inthelastdecade,betterunderstandingofthehemodynamicprocessbeforeheartfailuredecompensationledtoimprovementofoutpatientstrategiestopreventit.Advancesinimplantablewirelesstechnologynowallowfrequentanddirectmeasurementofintracardiacfillingpressures,whichcanbemonitoredbyhealthcareproviderstohelptailortherapytoreducefillingpressuresandhospitalreadmissionrates.

  • 标签: NONINVASIVE HEMODYNAMICS heart failure IMPLANTABLE HEMODYNAMIC
  • 简介:INTRODUCTIONWiththedevelopmentofeconomyandimprovementoflifequality,theincidencesofhypertension,hyper-cholesterolemia,diabetes,obesityandsmokinghavebeenincreasedinChina,whichhasledtoasignificantincreaseinthemorbidityandmortalityofcoronaryarterydisease(CAD)~1.SinceitwasintroducedintoChinain1984,coronaryintervention(PCI)hasdevelopedrapidlyandhasbecomethemajortreatmentofCADbecauseofitsuniquecharacteristicsofminimalinvasiveand

  • 标签: 冠状动脉疾病 介入治疗 护理 穿孔 栓塞 生活质量
  • 简介:The2016revisionofthe“ChineseGuidelinesonPreventionandTreatmentofDyslipidemiainAdults”istheoutcomeofthejointeffortsofthemembersofanexpertpanelformorethan1year,andisbasedonthe2007guidelines.Thereisnodoubtthatthereleaseofthe2007guidelinesgreatlyfacilitatedthemanagementofdyslipidemiaandthepreventionandtreatmentofatheroscleroticcardiovasculardiseases(ASCVDs)inChina.However,anupdateoftheguidelinesforthemanagementofdyslipidemiainChineseadultsisurgentlyneededsincehugechangeshaveoccurredintheconceptsofdyslipidemiaresearchandcontrolduringthelastdecade.

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  • 简介:Amlodipine/valsartan(Aml/Val)single-pillcombination(SPC)therapyhasbeenwidelyusedandstudiedinclinicalpracticeinrecentyears.ThisarticlereviewstheChineseandEnglishliteratureontheclinicaluseofAml/ValSPCtherapyinChinesehypertensivepatients.Accordingtofivestudiesconcerningtheefficacyandsafetyofthistreatment,Aml/ValSPCtherapywasmoreefficaciousthanmonotherapywithvalsartan,amlodipine,orthenifedipinegastrointestinaltherapeuticsystem.Thistreatmentshowedgreaterbloodpressure-loweringeffects,ahigherbloodpressurecontrolrate,andahigherresponserate.Aml/ValSPCtreatmentwaswelltolerated,withadverseeventratessimilartothoseofmonotherapywithvalsartanoramlodipineandsignificantlyrareradverseeventscomparedwiththenifedipinegastrointestinaltherapeuticsystem.Aml/ValSPCisahighlyefficaciousandwell-toleratedantihypertensivetreatmentinChinesehypertensivepatients.

  • 标签: HYPERTENSION VALSARTAN AMLODIPINE single-pill COMBINATION
  • 简介:Themanagementofpatientswithseveresymptomaticaorticstenosisandahightransvalvulargradientisstraightforward.Itrequiresaorticvalvereplacement.Managementofaorticstenosispatientswithlowflow,lowejectionfractionandlowgradientisfraught.Suchpatientsrarelyfulfillallthetenetsof“severity”andalsohavesevereleftventriculardysfunction.Bothcircumstancesmaketheoutcomeofaorticvalvereplacementuncertain.Thusthemanagementofthisgroupofpatientsrequiresintegrationofalldiagnosticmodalitiesavailable.Thephysicalexamination,degreeofvalvecalcification,theappearanceofthevalveduringsonographicexaminationandthepresenceofinotropicreserveallcontributeimportantlyinjudgingstenosisseverityandthelikelihoodofsuccessfulvalvereplacement.

  • 标签: AORTIC STENOSIS valvular HEART disease HEART
  • 简介:In2014theAmericanCollegeofCardiology/AmericanHeartAssociationissuedfournewguidelinesforcardiovasculardiseasepreventionthatfocusedoncardiovascularriskassessment,lifestylemanagement,obesitymanagement,andbloodcholesterolmanagement.Thedevelopmentofanatheroscleroticcardiovasculardiseaseriskcalculatorformedthebasisoftheriskassessmentguideline,andthelifestylemanagementguidelinefocusedonrecommendinganevidence-baseddietarypattern.Thebloodcholesterolmanagementguidelinespecificallyidentifiedfourgroupsofpatientsshowntobenefitfrommoderate-intensityorhigh-intensitystatintherapyfrompreviousclinicaltrialsandabandonedtheuseofspecificlow-densitylipoprotein(LDL)cholesterol(LDL-C)goallevelsonthebasisofthelackofclinicaltrialevidence.Therecommendationsfortreatmentwithmoderate-intensityorhigh-intensitystatintherapyarebasedonrigorousevidencefromrandomizedclinicaltrials.Guidancehassincebeenprovidedfortheuseofnonstatintherapies,includingcholesterolabsorptioninhibitorandproproteinconvertasesubtilisin/kexintype9monoclonalantibodytherapywhenadequatereductionofLDL-Clevelsisnotachievedwithmaximallytoleratedstatintherapy.TherecentdevelopmentandapplicationofthesetherapieshaveresultedinremarkablereductionsinLDL-Clevelsthatarewelltolerated,andpreliminaryoutcomedataarepromisinginshowingsubstantialatheroscleroticcardiovasculardiseaseeventreductionsbeyondstatintherapy.

  • 标签: CHOLESTEROL STATINS risk assessment PREVENTION CARDIOVASCULAR