Deborah H. Kwon

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Background—The value of assessment of viability as a predictor of surgical revascularization benefit in ischemic cardiomyopathy has recently been questioned in a large trial. We sought to determine whether the contribution of viability as myocardial scar burden (SB) to predict revascularization outcomes could be modulated by end-systolic volume index(More)
Heart failure is a major clinical problem in developed countries with about half of heart failure patients exhibiting decreased left ventricular systolic function. The correct identification and prompt treatment of some specific etiologies can reverse heart failure, and recognition of myocardial recovery may avoid long-term therapy. However, the(More)
BACKGROUND Right ventricular (RV) dysfunction in ischemic cardiomyopathy (ICM) is associated with poor prognosis, but RV assessment by conventional echocardiography remains difficult. We sought to validate RV global longitudinal strain (RVGLS) and global longitudinal strain rate (RVGLSR) against cardiac magnetic resonance (CMR) and outcome in ICM. METHODS(More)
Introduction Pulmonary arterial hypertension (PAH) is a progressive disease that can cause right ventricular (RV) dilatation and dysfunction as a result of increased pulmonary vascular resistance (PVR) and pulmonary arterial (PA) pressure. Background and Objectives: Right ventricular longitudinal strain (RVLS) is a new parameter of RV function. We evaluated(More)