For a long time, tricuspid valve disease has been considered as less important than left-sided valvular heart disease. If treated in an advanced stage and simultaneously with other cardiac diseases, it is associated with significant morbidity and mortality. Hence, physicians tend to refer patients more aggressively to surgery (1). Transcatheter procedures are an attractive alternative in high-risk patients. The field of transcatheter tricuspid devices has rapidly advanced over the last few years (2). Limited knowledge is available regarding the epidemiologic and anatomical settings in which these therapies are preferentially applied. The main purpose of this registry is the collection of baseline clinical and anatomical data of the patients treated with transcatheter tricuspid valve therapies, and their outcomes, whenever feasible. Apart from more knowledge regarding the current status in this field, the results could also help the establishment of guidelines with respect to the choice of the transcatheter device selected and to understand which therapy can provide the better outcome in the different anatomies. Moreover, this study will provide important information about the epidemiology of severe tricuspid regurgitation, which is at the moment an undertreated disease.