title: Functional mitral regurgitation: are we treating the real target?
abstract: Functional mitral regurgitation is a form of valve insufficiency in the presence of anatomically normal mitral valve. The cause of functional mitral regurgitation is left ventricular remodelling that tethers valve leaflet more apically decreasing their coaptation ability. Given the pathophysiologic relation between functional mitral regurgitation and ventricular dysfunction, the valve insufficiency has long been considered a surrogate of ventricular disease. Accordingly, all potential therapeutic strategies able to decrease functional mitral regurgitation have been associated with improved ventricular function. On the contrary, the surgical treatment of functional mitral regurgitation has led to contrasting results, but the main drawback is that it does not improve survival compared with medical therapy. However, surgery is characterized by many confounding factors, which might conceal the beneficial effect of the treatment of valve dysfunction in the mid-long-term follow-up. The present review underscores the potential limits of surgical treatment and hypothesized that percutaneous treatment of functional mitral regurgitation, by means of MitraClip, Abbott, Menlo Park, California, might represent a better tool to investigate treatment of functional mitral regurgitation.
authors.affiliation: aSection of Cardiology, Department of Medicine bSection of Cardiac Surgery, Department of Surgery, University of Verona cCardiology Division, Fondazione Salvatore Maugeri, IRCCS, Veruno, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Benfari
authors.forename: Rajesh
authors.initials: R
authors.lastname: Dandale
authors.forename: Andrea
authors.initials: A
authors.lastname: Rossi
authors.forename: Francesco
authors.initials: F
authors.lastname: Onorati
authors.forename: Giacomo
authors.initials: G
authors.lastname: Mugnai
authors.forename: Flavio
authors.initials: F
authors.lastname: Ribichini
authors.forename: Pier L
authors.initials: PL
authors.lastname: Temporelli
authors.forename: Corrado
authors.initials: C
authors.lastname: Vassanelli
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors / Q000627:therapeutic use; D058406:Cardiac Resynchronization Therapy; D004452:Echocardiography; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging* / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic; D053831:Surgical Fixation Devices; D016896:Treatment Outcome; D020257:Ventricular Remodeling
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors