Role of septal to posterior wall motion delay in cardiac resynchronization therapy.
نویسندگان
چکیده
1. Tse HF, Siu CW, Lee KL, et al. The incremental benefit of rateadaptive pacing on exercise performance during cardiac resynchronization therapy. J Am Coll Cardiol 2005;46:2292–7. 2. Lau CP. Normal exercise cardiopulmonary physiology and chronotropic incompetence. In: Lau CP, editor. Rate Adaptive Cardiac Pacing: Single and Dual Chamber. Mount Kisco, NY: Futura Publishing, 1993:7–23. 3. Fei L, Keeling PJ, Sadoul N, et al. Decreased heart rate variability in patients with congestive heart failure and chronotropic incompetence. Pacing Clin Electrophysiol 1996;19:477–83. 4. Witte KK, Cleland JG, Clark AL. Chronic heart failure, chronotropic incompetence, and the effects of beta-blockade. Heart 2006;92:481–6.
منابع مشابه
[Effect of the left ventricular pacing site on echocardiographic parameters of ventricular dyssynchrony in patients receiving cardiac resynchronization therapy].
INTRODUCTION AND OBJECTIVES Cardiac resynchronization therapy has been shown to be an option in the treatment of patients with congestive heart failure. The current indication for this treatment is based on clinical and electrocardiographic criteria, although echocardiography has also been shown to be a useful tool for the diagnosis of ventricular dyssynchrony. The aim of this study was to asse...
متن کاملSeptal to posterior wall motion delay fails to predict reverse remodeling or clinical improvement in patients undergoing cardiac resynchronization therapy.
OBJECTIVES The aim of this study was to test the hypothesis that a longer septal-to-posterior wall motion delay (SPWMD) would predict greater reverse remodeling and an improved clinical response in heart failure patients randomized to cardiac resynchronization therapy (CRT) in the CONTAK-CD trial. BACKGROUND The SPWMD predicted clinical benefit with CRT in two previous studies from the same c...
متن کاملImplementation of seven echocardiographic parameters of myocardial asynchrony to improve the long-term response rate of cardiac resynchronization therapy (CRT)
BACKGROUND Cardiac resynchronization Therapy (CRT) is an effective therapy for chronic heart failure with beneficial hemodynamic effects leading to a reduction of morbidity and mortality. The responder rates, however, are low. There are various and contentious echocardiographic parameters of myocardial asynchrony. Patient selection by echocardiographic assessment of asynchrony is thought to imp...
متن کاملRight Atrial Pacing Impairs Cardiac Function During Resynchronization Therapy
OBJECTIVES We aimed to compare the hemodynamic effects of right-atrial-paced (DDD) and right-atrialsensed (VDD) biventricular paced rhythm on cardiac resynchronization therapy (CRT). BACKGROUND Cardiac resynchronization therapy improves hemodynamics in patients with severe heart failure and left ventricular (LV) dyssynchrony. However, the impact of active right atrial pacing on resynchronizatio...
متن کاملEchocardiographic quantification of left ventricular asynchrony predicts an acute hemodynamic benefit of cardiac resynchronization therapy.
OBJECTIVES We sought to determine whether radial left ventricular (LV) asynchrony in patients with heart failure predicts systolic function improvement with cardiac resynchronization therapy (CRT). BACKGROUND We quantified LV wall motion by echocardiography to correlate the effects of CRT on LV systolic function with wall motion synchrony. METHODS Thirty-four patients underwent echocardiogr...
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ورودعنوان ژورنال:
- Journal of the American College of Cardiology
دوره 48 3 شماره
صفحات -
تاریخ انتشار 2006