title: Established and evolving indications for cardiac resynchronisation.
abstract: Randomised trials involving large number of patients have demonstrated the benefits of cardiac resynchronisation therapy (CRT) in patients with heart failure who have failed optimal medical treatment. Echocardiography plays an important role in defining dyssynchrony which is key to optimal patient selection. The electrocardiographic criteria for patient selection is supplemented by the finding of dyssynchrony on Doppler myocardial imaging, and echocardiography with Doppler myocardial imaging may eventually replace the electrocardiographic criteria for selection of patients who derive benefit from CRT.
authors.affiliation: Public Hospital Elisabethinen, Department of Cardiology, Academic Teaching Hospital of the University of Vienna and Innsbruck, A-4020 Linz, Fadingerstrasse 1, Austria. hans-joachim.nesser@elisabethinen.or.at
authors.forename: H J
authors.initials: HJ
authors.lastname: Nesser
authors.forename: O-A
authors.initials: OA
authors.lastname: Breithardt
authors.forename: B K
authors.initials: BK
authors.lastname: Khandheria
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D006348:Cardiac Surgical Procedures / Q000379:methods; D002639:Cheyne-Stokes Respiration / Q000209:etiology; D006333:Heart Failure / Q000628:therapy*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology / Q000628:therapy; D016032:Randomized Controlled Trials as Topic; D020182:Sleep Apnea, Central / Q000209:etiology; D018487:Ventricular Dysfunction, Left / Q000628:therapy