Results 211 to 220 of about 30,240 (248)
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Cardiac Resynchronization Therapy
Progress in Cardiovascular Diseases, 2006Left ventricular (LV) dysynchrony, generally defined as the effect of intraventricular conduction defects or bundle branch block to produce nonsynchronous ventricular activation, places the failing heart at a further mechanical disadvantage. The deleterious effects of ventricular dysynchrony include suboptimal ventricular filling, paradoxical septal ...
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Cardiac Resynchronization Improves Microcirculation
Journal of Cardiac Failure, 2007Although it is known that cardiac resynchronization therapy (CRT) in heart failure (HF) patients improves systemic circulation, its acute effects on microcirculation are as yet unknown. Therefore we investigated the sublingual microcirculatory changes in HF patients from CRT and right ventricular (RV) pacing by use of orthogonal polarization spectral ...
Erol-Yılmaz, A. +6 more
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On the Underutilization of Cardiac Resynchronization Therapy
Journal of Cardiac Failure, 2014Cardiac resynchronization therapy (CRT) is an exciting therapy that can treat patients with systolic heart failure and left ventricular dysfunction who have a wide QRS complex. Indications for its use have been refined and expanded based on recent clinical data and guidelines, yet the rate of new CRT implants in the United States has not changed much ...
Alan J. Bank +2 more
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Cardiac resynchronization therapy in cardiomyopathies
Journal of Cardiovascular Medicine, 2014Cardiomyopathies are a heterogeneous group of diseases of the myocardium that represent a major cause of morbidity and mortality due to progressive heart failure or sudden death. Cardiac resynchronization therapy has become an essential therapeutic tool in the treatment of heart failure patients today.
Masarone D +8 more
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Indications for Cardiac Resynchronization Therapy
Cardiology Clinics, 2014Initial studies established patient selection criteria for cardiac resynchronization therapy (CRT) as left ventricular ejection fraction less than or equal to 35%, QRS greater than or equal to 120 ms, and New York Heart Association 3-4. Based on newer data, post hoc analyses, and meta-analyses, these criteria have been refined and guidelines updated ...
Thomas M, O'Brien +2 more
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Electrical Remodeling in Dyssynchrony and Resynchronization
Journal of Cardiovascular Translational Research, 2012Heart failure (HF) is associated with anatomic and functional remodeling of cardiac tissues in both animal models and humans, which alters Ca(2+) homeostasis, protein phosphorylation, excitation-contraction coupling, results in arrhythmias. Indeed, the electrophysiological hallmark of cells and tissues isolated from failing hearts is prolongation of ...
Takeshi, Aiba, Gordon, Tomaselli
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Cardiac-Resynchronization Therapy
New England Journal of Medicine, 2011Robert S, Rosenstein, David, Parra
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Signal resynchronization in VLSI systems
Integration, 1986Abstract A simple extension to the standard nonoverlapping two phase clocking strategy, allowing a considerable clock skew between different isochronic regions is suggested. It is shown how this strategy can be further extended to other clocking strategies and to clock skews of more than half a clock period.
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Resynchronization or Proarrhythmia? A Conundrum
Pacing and Clinical Electrophysiology, 2013Irina, Suman-Horduna +2 more
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