Ventricular dyssynchrony and mechanisms of resynchronization therapy
نویسندگان
چکیده
منابع مشابه
Toward understanding response to cardiac resynchronization therapy: left ventricular dyssynchrony is only one of multiple mechanisms.
AIM To date, most published echocardiographic methods have assessed left ventricular (LV) dyssynchrony (DYS) alone as a predictor for response to cardiac resynchronization therapy (CRT). We hypothesized that the response is instead dictated by multiple correctable factors. METHODS AND RESULTS A total of 161 patients (66 +/- 10 years, EF 24 +/- 6%, QRS > 120 ms) were investigated pre- and post...
متن کاملImprovement in left ventricular intrinsic dyssynchrony with cardiac resynchronization therapy
OBJECTIVE Cardiac resynchronization therapy (CRT) has been shown to induce a structural and electrical remodeling; the data on whether left ventricle (LV) reverse remodeling is associated with restitution of intrinsic contraction pattern are unknown. In this study, we investigated the presence of improvement in left ventricular intrinsic dyssynchrony in patients with CRT. METHODS A total of 4...
متن کاملDynamic relationship of left-ventricular dyssynchrony and contractile reserve in patients undergoing cardiac resynchronization therapy.
AIMS Contradicting reports have been published regarding the relation between a dobutamine-induced increase in either cardiac dyssynchrony or left-ventricular ejection fraction (LVEF) and the response to cardiac resynchronization therapy (CRT). Using apical rocking (ApRock) as surrogate dyssynchrony parameter, we investigated the dobutamine stress echocardiography (DSE)-induced changes in left-...
متن کاملevaluation of longitudinal right ventricular mechanical dyssynchrony before and early after cardiac resynchronization therapy: a strain imaging study
background: the right ventricular (rv) dyssynchrony has not been studied extensively and the existing literature has established the effect of cardiac resynchronization therapy (crt) on the left ventricular (lv) dyssynchrony, but there is a dearth of data on the effect of crt on the forgotten ventricle . we sought to evaluate the presence of mechanical right ventricular dyssynchrony in patients...
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1 Left ventricular systolic torsion correlates global cardiac performance during 1 dyssynchrony and cardiac resynchronization therapy 2 Bouchra Lamia, MD, MPH, PhD, Masaki Tanabe, MD, Hidekazu Tanaka, MD, Hyung Kook 3 Kim, MD, John Gorcsan III, MD, Michael R Pinsky, MD 4 5 (1) Department of Critical Care Medicine, University of Pittsburgh Medical Center, 6 Pittsburgh, PA, USA 7 (2) Cardiovascul...
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ژورنال
عنوان ژورنال: European Heart Journal
سال: 2002
ISSN: 0195-668X
DOI: 10.1016/s0195-668x(02)80025-2