MitraClip procedure assisted with 3-dimensional electro anatomical mapping system.

Percutaneous mitral annuloplasty is widely used for the treatment of functional mitral regurgitation. There are limited imaging options to guide MitraClip procedure (Abbott Vascular, Santa Clara, CA, USA) in patients intolerant to transesophageal echocardiography. We describe a case using a 3-dimensional electro anatomical mapping system to facilitate the successful MitraClip procedure. Learning objectives: There are situations in which percutaneous mitral valve repair (MitraClip) for mitral regurgitation is difficult to perform under transesophageal echocardiography due to esophageal disease.3D mapping system may be useful when performing MitraClip under transthoracic echocardiography.