Expanding percutaneous treatment of mitral valve diseases: Transcatheter closure of mitral valve leaflet perforation

Mitral valve perforation is a rare cause of mitral regurgitation. We present a case of a 16‐year‐old patient with mitral valve regurgitation after redo‐cardiac surgery for recurrent subaortic stenosis. Transthoracic echocardiography revealed a mitral regurgitation with an eccentric jet causing a significant regurgitation documented by the presence of a convergence flow over the hole. This finding was corroborating by transesophageal echocardiography locating the perforation from the region of A2 scallop. Three‐dimensional transesophageal echocardiography confirmed these findings and played a key role guiding the procedure. Typical approach is usually a cardiac surgical procedure based on repair the perforation, but the mitral orifice was successfully closed percutaneously using an Amplatzer Duct Occluder II (ADO II; Abbott Vascular, IL).