Role of cardiac resynchronization therapy for treatment of heart failure
Berney Lamielle, M.; Burri, H.
Revue Medicale Suisse 5(193): 504; 506-508
2009
ISSN/ISBN: 1660-9379 PMID: 19374046 Document Number: 633289
Cardiac resynchronization therapy by a biventricular pacemaker or defibrillator is recommended for treating selected patients with systolic heart failure who are in NYHA class III or IV despite optimal medical therapy, have a left ventricular ejection fraction of < or = 35%, and a QRS width of > or = 120 ms. Improvement in symptoms or ventricular remodelling is observed in 50-80% of patients. In order to improve response to treatment, several strategies are proposed, including patient selection, lead positioning and device optimization.
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