الفهرس 
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Abstract
Functional tricuspid regurgitation (FTR) is the most common form of tricuspid valve (TV) disease. It results from changes in the tricuspid annular geometry caused by dilatation of the right ventricle in the absence of structural valve abnormalities. In most, FTR is caused by left-sided heart disease and subsequent pulmonary hypertension.
TV repair is recommended in patients undergoing left-sided valve surgery if severe FTR is present and/or when annulus dilatation exceeds 40 mm.
Although some studies showed that a percentage of the untreated FTR cases may regress or remain unchanged, about 40% may eventually deteriorate, following left sided valve surgery. Furthermore, surgery for symptomatic tricuspid regurgitation after left-side valve surgery, has high mortality rates up to 32% and 5-year survival rate is less than 50%. The aim of our study was to compare short-term results of ring versus synthetic band annuloplasty for repair of functional severe tricuspid regurgitation in patients with left-sided valve lesions.
we have conducted this prospective study including 60 patients who underwent left-side valve replacement with concomitant tricuspid valve repair for severe regurgitation. Patients were divided into group A where a ring was used, and group B where a synthetic band was used. The preoperative demographic and clinical data were non-significant between both groups. In the preoperative data; apart from the prolonged hospital stay in group B (0.006), the operative and postoperative data were non-significant. At six-months follow up, despite the significant improvement in RV function in ring group, there was no significant difference between both groups regarding the clinical data or the degree of tricuspid valve regurgitation.
Our study concluded that tricuspid valve repair with ring annuloplasty and synthetic band for functional tricuspid regurgitation offers good short-term outcome.