André d’Avila

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Integration of 3-D electroanatomic mapping with Computed Tomographic (CT) and Magnetic Resonance (MR) imaging is gaining acceptance to facilitate catheter ablation of atrial fibrillation. This is critically dependent on accurate integration of electroanatomic maps with CT or MR images. We sought to examine the effect of patient- and technique-related(More)
Catheter ablation of atrial fibrillation (CAAF) using the cryoballoon has emerged as an alternate strategy to point-by-point radiofrequency. However, there is little comparative data on long-term durability of pulmonary vein (PV) isolation comparing these two modalities. In this multicenter, retrospective analysis, the incidences/patterns of late PV(More)
There is limited data available on the safety and efficacy of the second-generation cryoballoon (CB-2) for cryoablation of atrial fibrillation (Cryo-AF). We evaluated the procedural, biophysical, and clinical outcomes of Cryo-AF in a large patient cohort using CB-2 as compared with the first-generation cryoballoon (CB-1). Three-hundred and forty consecutive(More)
Certain tachycardias can be eliminated by catheter ablation from within the base of the aortic valve (AV) cusps but the high blood flow and proximity to the coronary arteries create unique challenges. Standard radiofrequency (RF) energy, cooled-tip RF energy or cryothermal energy were compared to determine the optimal ablation modality. Experiments were(More)
From *Radiology, Brigham and Women’s Hospital, Boston, Massachusetts, †Cardiology, Massachusetts General Hospital, ‡ONI Medical Systems, Inc, Wilmington, Massachusetts, **Cardiology, University of Miami, Miami, Florida , ‡GE Global Research, Niskayuna, New York, §GE Healthcare Applied Science Laboratory, Bethesda, Maryland, St. Jude Medical, Minnetonka,(More)
Magnetic resonance (MR) imaging of the left atrium (LA) can be integrated with electroanatomic mapping systems to guide catheter ablation of atrial fibrillation (AF). The usefulness of this technique is dependent on the accuracy of image integration. The aim of this study is to determine the effect of heart rhythm at the time of pre-procedure MR imaging and(More)
With the increasing use of pre-procedural imaging techniques such as magnetic resonance imaging (MRI) and their integration with electroanatomic mapping systems in catheter ablation for atrial fibrillation (AF), atypical anatomy of the pulmonary veins (PV), left atrium (LA) and their relationship to the thoracic aorta is increasingly recognized. To(More)
2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation: Executive summary Hugh Calkins, MD, Chair, Gerhard Hindricks, MD, Vice-Chair, Riccardo Cappato, MD, Vice-Chair, Young-Hoon Kim, MD, PhD, Vice-Chair, Eduardo B. Saad, MD, PhD, Vice-Chair, Luis Aguinaga, MD, PhD, Joseph G. Akar, MD, PhD, Vinay(More)
Atrial fibrillation (AF) recurrence after an initial persistent AF ablation procedure is high, frequently resulting in the need for a repeat AF ablation procedure. Guidance on the optimal strategy for repeat procedures is non-existent. The objective of this study was to compare the freedom from recurrent atrial arrhythmia associated with two strategies for(More)
SEE PAGE 14 D urable isolation following pulmonary vein (PV) ablation may not be necessary for effective suppression of atrial fibrillation (AF) in certain patients with AF. However, most patients are thought to benefit from durable PV isolation, because PV reconnection seems to by and large underlie the mechanism of AF following catheter ablation (1). A(More)