Mitral regurgitation in Barlow's disease. The look from the repair

Degenerative mitral regurgitation is the second most frequent indication in cardiovascular surgery. Barlow's disease continues to be a challenge for surgical repair. The complexity and deformity of the anatomical valve structure, anatomopathological changes that involve the valve tissue and the fibromuscular skeleton, with alterations in the ventricular architecture make its repair difficult. It requires precise knowledge of the disease and its anatomical, functional, and haemodynamic aspects to allow us to see beyond the clinical presentation of the patient to offer the best treatment. This article provides an update on this disease, its diagnosis, and its surgical treatment. (C) 2021 Sociedad Espanola de Cirugia Cardiovascular y Endovascular. Published by Elsevier Espana, S.L.U.