A Comparative Study of Acute Hemodynamic Effects of Multi -site Cardiac Pacing in patients with cardiac function NYHA class ⅠtoⅡ without bundle branch block-中国期刊网

摘要 ObjectiveTocomparetheacutehemodynamiceffectsoffivedifferentpacingmodesinpatientswithcardiacfunctionNYHAclassⅠtoⅡwithoutbundlebranchblock(BBB).MethodsThisstudyincluded12patients(SSS7,Ⅲ°AVB5)undergoingpacemakerimplantation.Rightventricularapex(RVA),rightventricularoutflowtract(RVOT),rightventricularbifocal(RV-Bi),leftventricularbase(LVB)andbi-ventricular(Bi-V)pacingat60-80ppmweredoneinVVImodepriortoimplantationofDDDpacemaker.Thecardiacindex(CI),meanpulmonaryarterypressure(mPAP)andpulmonarycapillarywedgepressure(PCWP)weremeasuredwithSwan-Ganzthermodilutioncatheterafter5minutesofeachpacingmode.Results(1)ComparingtopacingatRVA(CI:2.41±0.38L/minperm2,PCWP:16.7±3.3mmHg),theCIincreasedandthePCWPdecreasedsignificantlyinpacingatRVOT(CI:2.63±0.46,PCWP:13.8±2.3),LVB(CI:2.78±0.52,PCWP:14.4±3.1),RV-Bi(CI:2.83±0.57,PCWP:12.8±2.5)andBi-Vpacing(CI:2.

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A Comparative Study of Acute Hemodynamic Effects of Multi -site Cardiac Pacing in patients with cardiac function NYHA class ⅠtoⅡ without bundle branch block

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A Comparative Study of Acute Hemodynamic Effects of Multi -site Cardiac Pacing in patients with cardiac function NYHA class ⅠtoⅡ without bundle branch block

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