title: [Mechanism of cardiac resynchronization therapy by real-time three-dimensional echocardiography in patients with heart failure].
abstract: We report the case of a 66-year-old man with heart failure NYHA class IV treated with biventricular pacing for cardiac resynchronization. The patient was evaluated by real-time three-dimensional transthoracic echocardiography before and 48 hours after pacemaker implantation. The use of three-dimensional echocardiography contributed to understanding the underlying mechanism involved in cardiac resynchronization therapy by demonstrating enhanced synchrony of myocardial segments, which resulted in the patient's clinical improvement.
authors.affiliation: Instituto do Coração do Hospital das Clínicas, FMUSP, São Paulo, SP. mlcvieira@aol.com
authors.forename: Marcelo Luiz Campos
authors.initials: ML
authors.lastname: Vieira
authors.forename: Prasad V
authors.initials: PV
authors.lastname: Maddukuri
authors.forename: Robert S
authors.initials: RS
authors.lastname: Phang
authors.forename: Natesa G
authors.initials: NG
authors.lastname: Pandian
authors.forename: Wilson
authors.initials: W
authors.lastname: Mathias Júnior
authors.forename: José A F
authors.initials: JA
authors.lastname: Ramires
mesh_terms: D000368:Aged; D002303:Cardiac Output, Low / Q000000981:diagnostic imaging / Q000628:therapy*; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D002306:Cardiac Volume / Q000502:physiology; D019560:Echocardiography, Three-Dimensional / Q000379:methods; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D016276:Ventricular Function