Dor Procedure for Left Ventricular Diverticulum With Mitral Regurgitation in an Infant

Congenital left ventricular diverticulum accompanied by MR is a rare abnormality. A 5-month-old female infant with this clinical combination underwent a procedure comprising exclusion of a large diverticulum by using an endoventricular circular patch (Dor procedure). This technique allowed us to avoid restriction of the left ventricular cavity and to improve the orientation of the papillary muscles, thus leading to successful mitral valve repair.