¿Existe un efecto beneficioso a largo plazo con el tratamiento con marcapasos de la miocardiopatía hipertrófica obstructiva severa?

In patients with obstructive HCM and incapacitating symptoms, pacemaker implantation reduced the LVOT gradient and the maximum left ventricular thickness, but only 43.1% of patients experienced clinical improvement. The only factor predictive of improvement was advanced NYHA functional class.