Philipp Halbfass

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BACKGROUND Nonrandomized studies have reported focal impulse and rotor modulation (FIRM)-guided ablation to be superior to pulmonary vein antrum isolation (PVAI) for persistent atrial fibrillation and long-standing persistent atrial fibrillation. OBJECTIVES This study sought to compare efficacy of FIRM ablation with or without PVAI versus PVAI plus non-PV(More)
UNLABELLED Paradoxical atrial undersensing. BACKGROUND Paradoxical atrial undersensing at high atrial sensing levels was described as false atrial noise reversion of dual-chamber pacemakers during atrial fibrillation in a sheep model. It is unknown whether this phenomenon occurs in humans. METHODS In total, 71 patients with implanted dual-chamber(More)
The aim of this study was to evaluate the rate of bleeding, thromboembolic complications, and the rate of stent thrombosis or restenosis in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). In this retrospective analysis, we included patients with AF who underwent PCI with stent implantation from 2003 to 2006.(More)
BACKGROUND Silent cerebral events (SCE) have been identified on cerebral diffusion-weighted cerebral magnetic resonance imaging (DE-MRI) after catheter ablation (CA) of atrial fibrillation (AF). The purpose of this study was to investigate the impact of atrial remodeling on the incidence of SCE after AF CA. METHODS Forty patients (67.8 ± 10 years, 47.5 %(More)
BACKGROUND Endoscopically detected esophageal lesions (EDELs) have been identified in apparently asymptomatic patients after catheter ablation of atrial fibrillation (AF). The use of esophageal probes to monitor luminal esophageal temperature (LET) during catheter ablation to protect esophageal damage is currently controversial. OBJECTIVE The purpose of(More)
Three-dimensional (3-D) mapping systems are of great value for the diagnosis and ablation of cardiac arrhythmias. If applied appropriately, 3-D mapping systems (3DM) can reduce fluoroscopy and procedural time. In general, two advanced mapping systems are currently in use: the Carto™ system (Biosense Webster) uses ultralow-intensity magnetic fields to locate(More)
BACKGROUND Functional mitral regurgitation (FMR) is common in patients with advanced heart failure and impaired left ventricular function. The study aim was to examine functional and hemodynamic effects at three months after MitraClip® implantation in high-risk surgical patients with FMR. METHODS A group of 93 patients was rejected for surgical treatment(More)
Aims Oesophageal probes to monitor luminal oesophageal temperature (LET) during atrial fibrillation (AF) catheter ablation have been proposed, but their effects remain unclear. Aim of this study is to evaluate the effects of an oesophageal temperature probe with insulated thermocouples. Methods and results Patients with symptomatic, drug-refractory(More)