Am having second ablation tomorrow this time an RF ablation. Told cardiac nurse who did pre assesment about sedation not working last time and she said to tell them that i am going to get off the table because i cant stand the pain she said they will soon make sure you are well sedated. My excellent Gp said just to moan a few times and that should make them sort it out. As she said we are all different and some people need more sedation than others. Will let you all know how it goes.