Vikram Nangia

Computed Tomography‐Fluoroscopy Image Integration‐Guided Catheter Ablation of Atrial Fibrillation

Introduction: This study examines the feasibility of atrial fibrillation (AF) ablation using registered three‐dimensional computed tomography (CT) images of the left atrium with fluoroscopy.

Periprocedural anticoagulation for atrial fibrillation ablation.

Background: Catheter ablation for atrial fibrillation (AF) can increase risk of left atrial (LA) thrombi and stroke. Optimal periprocedural anticoagulation has not been determined.

Biventricular Pacing and QT Interval Prolongation

Introduction: The purpose of this study was to examine BiV pacing‐dependent changes in QT interval and the related potential for proarrhythmia. Biventricular (BiV) pacing has emerged as a promising therapy for patients with advanced congestive heart failure (CHF) and bundle branch block (BBB).

Absent Left Inferior Pulmonary Vein in a Patient Undergoing Atrial Fibrillation Ablation

Catheter-based pulmonary vein isolation is an increasingly popular treatment approach for patients with symptomatic atrial fibrillation (AF). Pulmonary vein (PV) stenosis and atrial perforation are two potentially serious complications of these procedures, and ablation in the presence of poorly defined anatomy may only increase the risk of these adverse outcomes. Interestingly, the pulmonary venous anatomy is highly variable from patient to patient. Computed tomographic (CT) imaging, done prior to left atrial procedures, provides delineation of left atrial anatomic variations and abnormalities, and may help to reduce the