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OBJECTIVES This study describes the 5-year efficacy of catheter ablation for long-standing persistent atrial fibrillation (LS-AF). BACKGROUND Long-term outcome data after catheter ablation for LS-AF are limited. METHODS Long-term follow-up of 56 months (range 49 to 67 months) was performed in 202 patients (age 61 ± 9 years) who underwent the sequential(More)
BACKGROUND The incidence of silent cerebral lesions (SCL) after atrial fibrillation (AF) ablation is highly variable, depending on the technology used. Recently, an increased risk for SCL has been described for a novel, nonirrigated ablation tool using multielectrode phased radiofrequency (PVAC). The aim of this prospective study was to evaluate the(More)
BACKGROUND The aim of this study was to evaluate in vivo contact force (CF) and the correlation of CF with impedance during left atrial 3-dimensional electroanatomical mapping and ablation. METHODS AND RESULTS CF during point-by-point left atrial mapping was assessed in 30 patients undergoing atrial fibrillation ablation. Operators were blinded to the(More)
BACKGROUND Electric left atrial appendage (LAA) isolation (LAAI) may occur during catheter ablation of atrial tachyarrhythmias. Data regarding the risk of thromboembolic events and stroke after LAAI are sparse. This study evaluated the incidence of LAA thrombus formation and thromboembolic events after LAAI. METHODS AND RESULTS Fifty patients had LAAI(More)
Left atrial isthmus (LAI)-ablation in addition to circumferential pulmonary vein isolation (CPVI) may improve outcomes in select patients with atrial fibrillation (AF). However, bidirectional LAI-block is difficult to obtain. No systematic evaluation reporting on the feasibility and efficacy of LAI-ablation using a robotic navigation system (RNS) exists. In(More)
AIMS In patients requiring permanent pacemaker implantation for sinus node disease (SND) or atrioventricular (AV) block, right ventricular (RV) pacing has been demonstrated to increase the risk of developing atrial fibrillation (AF). The effects of RV pacing in patients with paroxysmal AF are less well defined. Short- and medium-term studies have suggested(More)
Long-term results after circumferential pulmonary vein isolation (CPVI) for the treatment of paroxysmal atrial fibrillation (PAF) using a robotic navigation system (RNS) have not yet been reported. To evaluate long-term results of patients with PAF after CPVI using RNS. In this study, 200 patients (n = 151 (75.5 %) male; median age 62.2 (54.7–67.7) years)(More)
BACKGROUND Atrial fibrillation (AF) is associated with a high risk of stroke. The contribution of arrhythmia to events is clear in sustained forms of AF, but in paroxysmal AF, presently available data have yet to identify what proportion of time spent in AF (ie, arrhythmia burden [AFB]) is of clinical relevance. We aimed to assess this relationship using(More)
BACKGROUND Severe mitral regurgitation (MR) ≥ 3+ and left ventricular dyssynchrony in heart failure patients are markers of CRT non response. The MitraClip (MC) implantation is a therapy for MR ≥ 3+ in patients with high surgical risk of mitral valve reconstruction. METHODS AND RESULTS We investigated 42 patients with CRT and MR ≥ 3+ who received an MC(More)