Ambient Circulation Surrounding an Ablation Catheter Tip Affects Ablation Lesion Characteristics.

A higher endocardial CE flow can decrease RF effectiveness. Cardiac tissue subjected to no endocardial CE flow may also limit RF for 4 mm catheters, but not for OI catheters; these findings may have implications for RF ablation safety and efficacy, especially, in the epicardial space without circulating fluid or in the endocardium under varying flow conditions. This article is protected by copyright. All rights reserved.