I thought it might be helpful to update my post-ablation experience. Two weeks after ablation at Barts (on June 30) my AF returned (120 bpm). My GP doubled my dose of Sotalol to 160 mg a day. Later my EP tripled it to 240 mg. My cardiac nurse added a small dose of Digoxin. All this has had little effect - still in the 100 - 120 bpm range. I am now booked for a cardioversion to knock me back into normal rhythm. Fingers crossed but a bit anxious about what comes next, post-cardioversion.