<prompt> Answer this question truthfullyWhat does tricuspid stenosis mean?  <response>: <reason> Tricuspid stenosis TS staging sections into categories A, B, C, D. Stages C without symptoms and D with symptoms. When valve andor chordal thickening and calcification are evident, there are additional findings indicative of severe TS, for example, pressure gradient greater than or equal to 5 mm Hg, pressure half-time greater than or equal to 190 milliseconds, valve area less than or equal to 1.0 cm2, associated moderate right atrial enlargement, and inferior vena cava dilatation. 