Cardiac Resynchronization Therapy DevicesCardiac Resynchronization TherapyCardiac Pacing, ArtificialPacemaker, ArtificialCoronary SinusHeart FailureDefibrillators, ImplantableElectrodes, ImplantedProsthesis ImplantationBundle-Branch BlockVentricular Dysfunction, LeftHeart VentriclesRalstonia pickettiiTreatment OutcomeStroke VolumeVentricular RemodelingEchocardiographyElectrocardiographyVentricular Function, LeftCardiomyopathy, DilatedEchocardiography, DopplerHeart Conduction SystemArrhythmias, CardiacEquipment FailureElectric CountershockPhlebographyFluoroscopy