Objective: To determine factors related to the early treatment decision for tricuspid regurgitation during the mitral valve surgery at Heart Institute HCM city. Method: Retrospective study - describe and analyze 652 patients hospitalized for mitral valve surgery with TR symptoms in the period from 2000 to 2012. Results: 581 patients were operated tricuspid valve disease during mitral valve surgery (group 1), 71 patients were not operated tricuspid valve disease (group 2). The clinical featuros, subclinical differences between the 2 groups with OR ( 1) according to univariate regression statistical significance (p 0.05) in group 1 greater than 6roup 2 included atrial fibrillation (OR 2) (OR = 2.51), tricuspid valve annulus diameter (OR = 1:12), SVG (OR = 1:03), VD (OR = 1:14) and PAPS (OR = 1:03). Factors associated with differences between the 2 groups of patients according to multivariate regression including organic TR (OR = 2.50, P = 0:03) and TR grade ( 2) (OR = 4:46, p = 0:02). Conclusion: Factors relating to TR repaired or not with univariate regression'method including atrial fibrillation, organic TR, TR grade ( 2), NYHA (2), and the value higher than the normal value as tricuspid valve annulus diameter, SVG, VD and PAPS. Factors relating to to TR repaired or not with univariate regression method recorded only organic TR and TR grade ( 2+).