Failed ablation question
I recently had a catheter ablation for my Wolff Parkinson White which was unsuccessful. The consultant said I should opt to have the procedure again as he knows exactly where the site is that causes the disturbance. The problem area is at the back of the heart, which he said was difficult to reach last time. I'm just wondering why that area is difficult to reach, and is it more dangerous to ablate at the back of the heart? Thanks!