The present study is designed as a prospective, multicentre, multinational, randomized, 2-arm parallel group trial. Participating centres are selected based on previous experience with the surgical technique and standardised echo imaging. Each center is expected to contribute 70 patients over a 12 months enrolment period.~Patients elected to undergo any type of left-sided valve surgery (either repair or replacement) with non severe tricuspid regurgitation and tricuspid annular dilation will be screened. Consenting patients fulfilling all inclusion and exclusion criteria will be included in the study and assigned to elective left-sided valve replacement or repair with or without concomitant tricuspid valve repair in a 1:1 fashion, using a blocked randomization scheme balanced within center.~After discharge patients will be assessed at 1, 12, 24 and 36 months after surgery.
Patients elected to undergo any type of left-sided valve surgery (either repair or replacement) with non severe tricuspid regurgitation and tricuspid annular dilation will be screened. Consenting patients fulfilling all inclusion and exclusion criteria will be included in the study and assigned to elective left-sided valve replacement or repair with or without concomitant tricuspid valve repair in a 1:1 fashion, using a blocked randomization scheme balanced within center.