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PURPOSE To evaluate the prognostic outcome of cardiac computed tomography (CT) for prediction of major adverse cardiac events (MACEs) in low-risk patients suspected of having coronary artery disease (CAD) and to explore the differential prognostic values of coronary artery calcium (CAC) scoring and coronary CT angiography. MATERIALS AND METHODS(More)
BACKGROUND New-onset postoperative atrial fibrillation (POAF) is associated with poor short- and long-term outcomes after isolated coronary artery bypass graft (CABG). This study evaluated whether new-onset POAF is independently associated with long-term (>1 year) atrial fibrillation (AF) and mortality. METHODS Among 1,171 consecutive patients who had(More)
PURPOSE Previous studies have demonstrated an association between eNOS polymorphisms and atrial fibrillation (AF). We sought to determine whether eNOS polymorphisms are associated with AF recurrence after a radiofrequency catheter ablation (RFCA). MATERIALS AND METHODS A total of 500 consecutive patients (56±11 years, 77% male) with paroxysmal (68%) or(More)
OBJECTIVES The purpose of this study was to evaluate the antiarrhythmic potential of mesenchymal stem cells (MSC) under a different environment. BACKGROUND Little is known about how environmental status affects antiarrhythmic potential of MSCs. METHODS To investigate the effect of paracrine factors secreted from MSCs under different circumstances on(More)
OBJECTIVES This study was designed to determine the prognostic value of multidetector coronary computed tomography angiography (CTA) in relation to exercise electrocardiography (XECG) findings. BACKGROUND The prognostic usefulness of coronary CTA findings of coronary artery disease in relation to XECG findings has not been explored systematically. (More)
The structural and functional characteristics of left atrial appendage (LAA) in patients with atrial fibrillation (AF) with previous stroke remain incompletely elucidated. This study investigated whether a larger LAA orifice is related to decreased LAA flow velocity and stroke in nonvalvular AF. The dimension, morphology, and flow velocity of LAA were(More)
BACKGROUND The present study sought to determine if echo-Doppler-derived pulmonary vascular resistance (PVR echo), net-atrioventricular compliance (Cn) and tricuspid peak systolic annular velocity (Sa), as parameters of right ventricular function, have value in predicting exercise capacity in patients with mitral stenosis (MS). METHODS AND RESULTS(More)
OBJECTIVE Circumferential pulmonary vein isolation (CPVI) has been considered the cornerstone of radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF). However, it is unclear whether linear ablation in addition to CPVI improves clinical outcome. DESIGN Prospective randomised study to compare the efficacy of CPVI and CPVI with additional(More)
By using late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) imaging, we compared left atrial late gadolinium enhancement (LA-LGE) quantification methods based on different references to characterize the left atrial wall in patients with atrial fibrillation (AF). Thirty-eight patients who underwent three-dimensional LGE-CMR imaging before(More)
BACKGROUND Although radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) is an effective rhythm control strategy, there is a substantial amount of recurrence. We explored the predictors of AF recurrence after RFCA with consistent ablation strategy. METHODS AND RESULTS This study included 575 patients (77% male, 56 ± 11 years old) with AF(More)