Current Management of Ventricular Tachycardia:Approaches and Timing

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摘要 Ventriculartachycardia(VT)inthepresenceofstructuralheartdiseaseisassociatedwithsuddencardiacdeathandwarrantspromptattention.Implantablecardioverterdefibrillators(ICDs)whilehighlyeffectiveinterminatingsustainedventriculararrhythmiasandreducingmortality,havenoeffectonthearrhythmiasubstrateandrecurrentshocksforVTterminationoccurinapproximately20%ofpatients.Shocksworsenqualityoflifeandareassociatedwithprogressionofheartfailureandincreasedmortality.Antiarrhythmicdrugs,mainlyintheformofbeta-blockersoramiodarone,aremoderatelyeffectiveinreducingICDtherapiesbutdrugintoleranceandserioustoxicitiesofamiodaronenecessitatedrugcessationinaquarterofpatients.CatheterablationhasemergedasaneffectivetreatmentforcontroloffrequentVTepisodesandcanbelifesavingincasesofincessantVTorVTstorm.Asexperienceincreases,itisbeingusedincreasinglyearlier,ratherthanalastresorttherapy.Efficacyvarieswiththenatureoftheunderlyingheartdisease.Intramuralarrhythmiasubstrateandfailuretocreatepermanentablationlesionsremainchallengesandrepeatproceduresarenecessaryinathirdtoahalfofpatients.ForidiopathicVTsorPVCsthataresymptomaticorworsenLVfunction,catheterablationisoftenaneffectivetherapy.
机构地区 不详
出处 《心血管创新与应用》 2016年B02期
出版日期 2016年06月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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