European heart journal cardiovascular Imaging
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Eur Heart J Cardiovasc Imaging · Mar 2013
Impact of coronary atherosclerosis on the efficacy of radiofrequency catheter ablation for atrial fibrillation.
Coronary atherosclerosis has been associated with the development of atrial fibrillation (AF). However, little is known about the impact of coronary atherosclerosis on the outcome treatment of AF. The aim of this study was to investigate the impact of coronary atherosclerosis on the efficacy of radiofrequency catheter ablation (RFCA) for AF using multi-detector row computed tomography (MDCT). ⋯ The presence of coronary atherosclerosis on MDCT is not associated with a higher risk for AF recurrence after RFCA.
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Eur Heart J Cardiovasc Imaging · Feb 2013
Comparative StudyThe prognostic impact of dynamic ventricular dyssynchrony in patients with idiopathic dilated cardiomyopathy and narrow QRS.
Asynchronous myocardial contraction adversely influences left ventricular (LV) function and is therefore associated with a poor prognosis in heart failure. Exercise-induced change in ventricular dyssynchrony may be an important determinant of dynamic changes in cardiac output and mitral regurgitation. ⋯ In patients with idiopathic DCM and narrow QRS, the increase in echocardiographic dyssynchrony during exercise was the strongest predictor of less favourable event-free survival.