Percutaneous Treatment of Primary and Secondary Mitral Regurgitation: Overall Scope of the Problem.

Mitral regurgitation is a heterogeneous disorder requiring the understanding of complex mitral anatomy and pathophysiology. Advanced imaging has furthered our knowledge and ability to treat patients with this disorder. As the demand for less invasive treatment increases, a multitude of percutaneous options have emerged. This review is written for interventionalists to fully appreciate the overall scope of the problem of mitral regurgitation. Understanding and integrating mitral anatomy with pathophysiology, multimodality imaging, and current transcatheter mitral therapies are paramount for treating this disorder.