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Clinicalandanatomicpredictorsofneedforrepeatatrialfibrillationablation

WorldJournalofCardiology 页数: 7 2017-09-26
摘要: AIMToidentifypredictorsofneedforrepeatproceduresafterinitialatrialfibrillation(AF)ablation.METHODSWeidentifiedacohortundergoingfirsttimeAFablationatourinstitutionfromJanuary2004toFebruary2014whohadcardiacmagneticresonance(CMR)imagingperformedpriortoablation.Clinicalvariablesandanatomiccharacteristics(determinedfromCMR)wereassessedaspredictorsofneedforrepeatablation.Thedecisionregardingneedforandtimingofrepeatablationwasatthediscretionofthetreatingphysician.RESULTSFromacohortof331patients,142patients(43%)underwentrepeatablationatameanof13.6±18.4moaftertheindexprocedure.Bothmalegender(81%vs71%,P=0.05)andlowerejectionfraction(57.4%±10.3%vs59.8%±9.4%,P=0.04)wereassociatedwithneedforrepeatablation.Onpre-ablationCMR,meanpulmonaryvein(PV)diametersweresignificantlylargerinallfourPVsamongpatientsrequiringrepeatprocedures.Inmultivariateanalysis,increasedrightsuperiorPVdiametersignificantlypredictedneedforrepeatablation(oddsratio1.08permillimeterincreaseindiameter,95%CI:1.00-1.16,P=0.05).TherewerealsotrendstowardsignificanceforincreasedleftandrightinferiorPVsizesamongthoserequiringrepeatprocedures.CONCLUSIONIncreasedPVsizepredictstheneedforrepeatAFablation,witheachmillimeterincreaseinPVdiameterassociatedwithanapproximately5%-10%increasedriskofrequiringrepeatprocedures. ... (共7页)

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