Application of right atrial contiguous linear lesions: an in vivo efficacy validation of multipolar ablation catheters in an animal model.

Catheter ablation of atrial flutter and catheter Maze procedures require the creation of linear lesions. The efficacy of different multipolar catheters to create linear contiguous transmural lesions was studied in a sheep model. In 19 sheep a multipolar ablation catheter was inserted into the right atrium.