Two Aged Cases of Mitral Insufficiency Due to Spontaneous Rupture of Chordae Tendineae

摘要

Two aged cases of mitral insufficiency due to ruptured chordae tendineae were reported. These cases had no past history of rheumatic fever and bacterial endocarditis. At autopsy, mitral insufficiency was explained by spontaneous rupture of chordae tendineae. Histologically, the ruptured chordae tendineae showed degenerative changes of connective tissue by aging process, which were suspected as one of the etiology among cases of spontaneous rupture.