Randomized Comparison Between 3 D CT Overlay and Conventional Fluoroscopy to Decrease Contrast and Radiation Exposure During Cryoballoon Ablation for Atrial Fibrillation

Randomized Comparison Between 3 D CT Overlay and Conventional Fluoroscopy to Decrease Contrast and Radiation Exposure During Cryoballoon Ablation for Atrial Fibrillation

Cryoablation using a balloon is an effective therapy for paroxysmal atrial fibrillation (AF), however associated with significant amounts of radiation exposure and contrast medium use. A new imaging technique (3D CT overlay) could reduce radiation exposure and contrast medium use significantly.

Inclusion Criteria:

- All patients screened are accepted for PVI according to the current guidelines - Patients are candidates for enrolment if they have paroxysmal AF as defined in the guidelines

Exclusion Criteria:

• Persistent, long-standing persistent or permanent AF
• Left atrial diameter > 50 mm (measured in the parasternal long axis, as assessed with transthoracic echocardiography)
• Previous PVI ablation (epicardial or endocardial).