CARDIOVASCULAR ENGINEERING Journal for Extracorporeal Circulation, Assist Devices,Transplantation and Artificial Organs
	Volume 2, 1997, No 4

Quadrangular Resection without Ring Annuloplasty in Mitral Valve Repair

P. M. A. Pomerantzeff, C. M. A. Brandão, E. G. Rossi, L. F. Cardoso, F. Tarasoutchi, M. Gimberg, N. A. G. Stolf, G. Verginelli, A. D. Jatene

Abstract:
We intend to analyse the immediate and recent results in mitral valve repair using the quadrangular ressection of the posterior leaflet without ring annuloplasty. Between the period of January 1984 and december 1996, 118 patients underwent mitral valve repair with this technique. Age ranged from 30 to 86 years (average of 59,1 +/- 11,8 years), and 62,7% were male. Associated procedures were performed in 22,0% of the patients, the most frequent was coronary artery bypass grafting (15 patients – 12,7%). In 20 patients (16,9%) we used associated techniques of valve repair, most frequent was chordal shortening (6 patients). Immediate mortality was 0,9%. The linearized rates for thromboembolism, endocarditis, reoperation and death in the late post- operative period were respectively 0,4%, 0,4%, 1,7% and 2,2% patients/ year. The actuarial survival was 83,8 +/- 8,6% in 12 years, freedom from reoperation was 91,8 +/- 4,3%, endocarditis 99,2 +/- 0,8% and thromboembolism 99,2 +/- 0,8% in 12 years. In the late post- operative period, 93,8% of the patients were in NYHA functional class I, with a complete follow- up of 89,7%. We conclude that patients with mitral insufficiency due to prolapse that underwent mitral valve repair with this technique, presented a satisfactory evolution in 12 years.

Keywords:
Mitral repair, valve surgery, mitral annuloplasty

Address for Correspondence:

Reference:
(CVE. 1997; 2 (4): 271-273)

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