[The treatment of obstructive hypertrophic myocardiopathy refractory to medical therapy].

Until a few years ago, therapy of refractory Hypertrophic Obstructive cardiomyopathy was mainly surgical--Morrow's myotomy/myectomy or mitral valve replacement. Despite the good results of these techniques, they are not free of mortality and morbidity. In the last years a new and promising therapy has been developed: the Dual Chamber Pacemaker. Technically easier and less invasive than surgery, this therapy has achieved better results and lower mortality and morbidity during the follow-up.