Resumen─ La fibrilacion auricular (FA) es la arritmia mas comun en la practica clinica y por la que mas se consulta en los servicios medicos. Recientemente, se ha propuesto un mecanismo de mantenimiento de la FA, el cual consiste en la existencia de uno o varios rotores que activan el tejido a alta frecuencia. La ablacion es uno de los tratamientos para la FA, en FA cronica son necesarios patrones de ablacion complejos, por lo que actualmente se busca el patron ideal con un minimo numero de lineas de ablacion. En este trabajo se simula la actividad de un rotor en un modelo 2D de tejido auricular humano, bajo condiciones de FA cronica y se localiza su centro de giro (tip). Se proponen y evaluan seis diferentes patrones simples de ablacion compuestos por un numero reducido de lineas. El estudio demostro que aquellos patrones que atraviesan o encierran el tip del rotor y que adicionalmente se prolongan hasta una frontera de conduccion son eficaces en la terminacion del rotor. Abstract — Atrial fibrillation (AF) is the most common arrhythmia in clinical practice and the most consulted in medical services. 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. Six different simple ablation patterns composed of a limited number of lines were proposed and evaluated. The study showed that those patterns that passed through or encloses the tip of the rotor and additionally were extended to a conduction boundary are effective in the termination of the rotor.