Traumatic tricuspid regurgitation is generally considered a rare complication of blunt non-penetrating chest injury. However, its incidence has been reported to be increasing in recent decades.
The most common cause of tricuspid valve trauma injury are road accidents and the higher proportion of car equipped with airbags, with the latter potentially contributing to the mechanism of injury. Impact to the chest may result in various types of the valve chordae, dominated by chordal rupture followed by papillary muscle rupture, and cusp tear.
The clinical pattern may thus be most varied—from acute right-heart failure to an asymptomatic course.