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Ann Thorac Surg 1999;68:1686-1690
© 1999 The Society of Thoracic Surgeons

Original Articles

Partial tricuspid valve transfer for repair of mitral insufficiency due to ruptured chordae tendineae

Francisco Gregori, Jr, MDa, Celso O. Cordeiro, MDa, Ulisses A. Croti, MDa, Sergio S. Hayashi, MDa, Samuel S. da Silva, MDa, Thelma E.F. Gregori, MDa

a Department of Surgery, State University of Londrina School of Medicine, Londrina, Parana, Brazil

Address reprint requests to Dr Gregori, Rua Paes Leme, 1264—sala 701, Londrina, Parana, 86010-5203 Brazil
e-mail: fgregori{at}sercomtel.com.br

Background. A new technique is suggested for the reconstructive surgical treatment of mitral regurgitation. It involves partial transfer of the tricuspid valve of the patient to the mitral valve, in order to provide chordae to correct anterior leaflet prolapse of the mitral valve, secondary to rupture of the chordae tendineae.

Methods. From January 1991 to May 1997, 20 patients with mitral insufficiency due to rupture of the chordae were operated on. The prevailing cause was myxomatous degeneration (70%). Patients were in New York Heart Association functional class III and IV.

Results. There were no hospital deaths. Two patients were reoperated on. Eighteen patients (90%) are alive with their own valves (class I and II). Doppler echocardiogram mean values were: ejection fraction, 0.65; left atrial diameter, 4.2 cm; mitral area, 2.4 cm2; mitral transvalvular gradient, 3.3 mm Hg. No regurgitation or mild regurgitation was observed in 16 (94.1%) of the 17 cases evaluated. Mean tricuspid valvular area was 3.3 cm2. In all cases, no tricuspid regurgitation was present or it was mild.

Conclusions. Partial transfer of the tricuspid valve to the mitral valve is an effective procedure for the surgical treatment of mitral valve insuffiency secondary to ruptured chordae tendineae of the anterior leaflet.


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Ann. Thorac. Surg. 1999 68: 1690-1691. [Extract] [Full Text] [PDF]



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