The effectiveness of a high output/short duration radiofrequency current application technique in segmental pulmonary vein isolation for atrial fibrillation

90 consecutive patients with atrial fibrillation, mean age 53+/-10 years, 66 men.

Segmental pulmonary vein isolation by irrigated radiofrequency catheter ablation using high power output (maximum 45 W) and short application time (20 s) with a target temperature of 55 degrees C.

Conventional segmental pulmonary vein isolation using low power output (limited to 30 W) and long application time (120 s) with a target temperature of 50 degrees C.

Pulmonary vein isolation time, mean fluoroscopy time, and radiation dose.surrogate