G. Joseph Gallinghouse

Learn More
OBJECTIVES This study investigated the left atrial appendage (LAA) by computed tomography (CT) and magnetic resonance imaging (MRI) to categorize different LAA morphologies and to correlate the morphology with the history of stroke/transient ischemic attack (TIA). BACKGROUND LAA represents one of the major sources of cardiac thrombus formation responsible(More)
BACKGROUND Periprocedural thromboembolic and hemorrhagic events are worrisome complications of catheter ablation for atrial fibrillation (AF). The periprocedural anticoagulation management could play a role in the incidence of these complications. Although ablation procedures performed without warfarin discontinuation seem to be associated with lower(More)
BACKGROUND Together with pulmonary veins, many extrapulmonary vein areas may be the source of initiation and maintenance of atrial fibrillation. The left atrial appendage (LAA) is an underestimated site of initiation of atrial fibrillation. Here, we report the prevalence of triggers from the LAA and the best strategy for successful ablation. METHODS AND(More)
BACKGROUND Radiofrequency catheter ablation of atrial fibrillation can be performed under general anesthesia or conscious sedation at the physician's preference. OBJECTIVE We randomized a series of consecutive patients with paroxysmal atrial fibrillation (AF) undergoing radiofrequency catheter ablation to either general anesthesia or conscious sedation to(More)
BACKGROUND Longstanding persistent (LSP) atrial fibrillation (AF) is the most challenging type of AF. In addition to pulmonary vein isolation, substrate modification and triggers ablation have been reported to improve freedom from AF in patients with LSPAF. OBJECTIVES This study sought to assess whether the empirical electrical isolation of the left(More)
R adiofrequency catheter ablation for atrial fibrillation (AF) is an effective therapeutic option for the treatment of symptomatic drug-refractory AF. 1 The complexity of the procedure and its operator dependency expose patients to a considerable number of potential complications. 2–4 Periprocedural thromboembolic events represent one of the(More)
BACKGROUND Periprocedural anticoagulation management with uninterrupted warfarin and a "therapeutic" international normalized ratio is the best approach for reducing both thromboembolic and bleeding complications in the setting of catheter ablation for atrial fibrillation (AF). OBJECTIVE The purpose of this study was to evaluate the safety and feasibility(More)
BACKGROUND Most atrial fibrillation (AF) ablation studies have consisted predominantly of males; accordingly, there is a paucity of information on the safety and efficacy of catheter ablation in a large cohort of female AF patients. OBJECTIVE The purpose of this study was to evaluate catheter ablation for AF in female patients. METHODS From January 2005(More)
BACKGROUND Robotic catheter navigation and ablation either with magnetic catheter driving or with electromechanical guidance have emerged in the recent years for the treatment of atrial fibrillation. OBJECTIVE The aim of this study was to compare our center's experience of atrial fibrillation ablation using the Hansen Robotic Medical System with our(More)
BACKGROUND Catheter ablation of atrial fibrillation is associated with the potential risk of periprocedural stroke, which can range between 1% and 5%. We developed a prospective database to evaluate the prevalence of stroke over time and to assess whether the periprocedural anticoagulation strategy and use of open irrigation ablation catheter have resulted(More)