There is an urgent need for transcatheter tricuspid interventions, as pharmaceutical therapy becomes ineffective in advanced disease stages and surgery remains associated with high mortality rates. Despite the promising results, in some patients, although good procedural results were achieved, no clinical improvements were measured. Right ventricular dysfunction is suspected to be the cause of the failed therapeutic strategy. Therefore this study aims to analyze right ventricular function with magnet resonance imaging before and 3-months after the procedure in order to gain insight into the prevalence and dynamics of right ventricular dysfunction in severe tricuspid regurgitation and to identify possible predictors for treatment failure.

Inclusion Criteria:

• Patients with severe tricuspid regurgitation undergoing transcatheter tricuspid intervention.

Exclusion Criteria:

• Patient with Incompatibility with magnetic resonance imaging or echocardiography
• Another valve disorder that requires treatment
• Severe precapillary pulmonary hypertension
• Unstable angina or percutaneous coronary intervention within the last 30 days
• Previous pacemaker/defibrillator implantation with intracardiac leads
• Patients with cardiac cachexia or a life expectancy less then 12 months
• Allergies to the material used.