Apparatus, systems and methods for creation of ablation lesions for the treatment of atrial fibrillation. A method for creating a maze of lesions to isolate macro re-entrant circuits. An ablation catheter with at least one ablation surface at its distal end. A flexible ablation probe with at least one ablation surface at its distal end. A clamp with opposing jaws having at least one jaw with an ablation surface, optionally including temperature sensing.
