Reconstructive surgery of mitral regurgitation due to ruptured chordae tendineae
Okamoto, Y.; Nakayama, K.; Yamada, K.; Kodama, K.; Osaragi, M.; Nozaki, A.; Watanabe, H.
Nihon Kyobu Geka Gakkai 30(9): 1621-1628
1982
ISSN/ISBN: 0369-4739 PMID: 7153588 Document Number: 192946
Ten cases of mitral regurgitation (MR) due to ruptured chordae tendineae were reported. Five patients were allowed the diagnosis of MR due to idiopathic ruptured chordae tendineae, 2 were bacterial endocarditits, 1 Marfan's syndrome, 1 corrected transposition and 1 rheumatic valvulitis. One the diagnosis of chordal rupture is established, management must be planned. Most cases of patients have required surgical intervention. In 8 cases of 9, mitral valve replacement were performed and in 1 case, leaflet plication with annuloplasty. At mitral valve replacement in 3 cases, not to cause dehiscence of sutures and to preserve left ventricular function to keep continuity of mitral apparatus, mitral valve, chordae tendineae and papillary muscles were not excised and St. Jude Medical prosthetic valve was sutured to the mitral annulus. Good operative results would be expected with the precise differential diagnosis for the causes of mitral regurgitation and the locations of chordal lesion and the precise observation of the anatomical structure of the mitral complex.