[Mitral valve disease: diagnosis and management revisited].
Mitral valve disease ranks among the most frequent valvular conditions and carries significant morbidity and mortality if left untreated. This review addresses anatomy, the Carpentier classification, and echocardiographic severity grading, as well as current management of primary and secondary mitral regurgitation (MR) and mitral stenosis. Transcatheter therapies, including edge-to-edge repair and transcatheter mitral valve replacement, receive particular attention and are discussed in the context of four clinical cases from a specialized valve center.