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ABSTRACT: A 29-year-old man was referred to our institution for severe tricuspid regurgitation. Preoperative transesophageal echocardiography revealed dilation of the tricuspid annulus with prolapse of the anterior leaflet and progressive increase in right ventricular diameter. The anterior papillary muscle was elongated. Annuloplasty was completed by polytetrafluoroethylene artificial chordae implanted on the free margin of the anterior leaflet, and thereafter, tied outside the right ventricle, under echocardiography control to achieve appropriate length. The patient recovered well, and 6 months after surgery, repeat echocardiography revealed only mild tricuspid regurgitation with recovery of normal right ventricular dimensions.