Se presenta el caso de un paciente masculino de 33 anos, portador de distrofia miotonica sin compromiso estructural miocardico, pero con fluter atrial paroxistico refractario a farmacos antiarritmicos. Se utilizo un sistema cartografico electromagnetico para la ablacion por cateter del fluter, la cual fue exitosa.

We herein present the case of a 33 years old male patient with myotonic distrophy without structural cardiac involvement but with recurrent episodes of paroxysmal atrial flutter, refractory to antiarrhtythmic drugs. We used an electromagnetic mapping system and the flutter was successfully ablated.