We report the case of a woman affected by severe functional mitral regurgitation secondary to idiopathic dilated cardiomyopathy, who underwent reductive mitral annuloplasty and implantation of CorCap cardiac support device (Acorn Cardiovascular Inc, St. Paul, MN). Despite the recurrence of severe mitral regurgitation early after surgery, a progressive reverse remodeling of the left ventricle has been echocardiographically demonstrated at a long-term follow-up due to the passive containment effect of the CorCap.