Asymptomatic Pulmonary Embolism after Ablation.

Background: Pulmonary embolism (PE) is a life-threatening event with a broad presentation spectrum ranging from asymptomatic cases to sudden cardiac arrest. It is unclear if right atrial emboli cause PE in patients with atrial fibrillation (AF) or if mild PE itself increases right cardiac pressure provoking AF.

Objective: To determine the incidence and predictors of asymptomatic PE in patients undergoing AF ablation.