Descripción: “...Recently it has been proposed a mechanism for maintaining the AF, which consists in one or more rotors activating the tissue at high frequency. Ablation is one of the treatments for AF, for chronic AF is needed complex ablation patterns, so currently it has been looking for an ideal pattern with a minimum number of ablation lines.In this work activity of a rotor was simulated in a 2D model of human atrial tissue, under chronic AF conditions, and the center of rotation (tip) was located. ...”