Partial replacement of the tricuspid valve by mitral homografts in acute endocarditis

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Abstract

Background. Seven patients with acute tricuspid endocarditis underwent partial replacement of the tricuspid valve using mitral homograft tissue. Valve function was evaluated at midterm. Methods. Operative indications were uncontrolled sepsis in all cases associated with heart failure symptoms in 3 patients and septic pulmonary emboli in 2 patients. These patients were referred to our institution after a course of antibiotic treatment ranging from 7 to 12 weeks. Lesions found at the level of the anterior leaflet of the tricuspid valve were vegetations and rupture of more than half of the marginal cords in all patients. Vegetations were also found on the posterior leaflet in 5 patients. In all instances the septal leaflet was free of lesions. The aortic valve was involved in 4 patients and the pulmonary valve in 1 patient. All patients underwent resection of the anterior and posterior leaflets of the tricuspid valve with their corresponding papillary muscles leaving the septal leaflet in place. Replacement of the tricuspid valve was performed through a right longitudinal atrial access, using the anterior leaflet of a mitral homograft alone in 3 patients and the anterior leaflet with part of posterior leaflet in 4 patients. Associated procedures included aortic valve replacement by a homograft (n = 4) and pulmonary valve reconstruction (n = 1). Results. No hospital deaths are reported. One late death, at 16 months, is reported after reoperation due to recurrent aortic valve endocarditis. At midterm (mean follow-up, 30 months) patients had excellent functional status and normal valvular function during echocardiographic studies. Conclusions. We conclude that when the degree of tricuspid valve destruction prevents repair, partial homograft replacement can be used as an extension of the already existing reconstructive techniques, with excellent functional results. © 2002 by The Society of Thoracic Surgeons.

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Couetil, J. P. A., Argyriadis, P. G., Shafy, A., Cohen, A., Berrebi, A. J., Loulmet, D. F., … Carpentier, A. F. (2002). Partial replacement of the tricuspid valve by mitral homografts in acute endocarditis. Annals of Thoracic Surgery, 73(6), 1808–1812. https://doi.org/10.1016/S0003-4975(02)03574-9

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