**8. Catheter ablation for AF limitation**

There are small but nonzero procedural risks that must be taken into account when considering CA, including risks of stroke (0.5–1%) and tamponade (1–2%); however, a second ablation is frequently required [1]. CA for AF and HF was performed at centers with experienced ablationists in most landmark trials, and the results thus may not be reproducible in all centers [20].
