Definitions and Morphology Isolated congenital anomalies of the tricuspid valve (TV) are rare structural malformations that involve one or more components of the TV apparatus and result more commonly in tricuspid regurgitation (TR) and less often tricuspid stenosis (TS). The…
Definition and Morphology Ebstein anomaly (EA) is a rare malformation of the tricuspid valve (TV) and right ventricle (RV). The anatomic and pathophysiologic characteristics are variable and lead to a wide spectrum of clinical scenarios. The clinical presentation in adults…
Introduction The most common congenital malformations afflicting the tricuspid valve are Ebstein malformation and tricuspid valvar dysplasia. These lesions are considered in this chapter, together with a brief look at acquired malformations. Tricuspid valvar abnormalities, or abnormalities of the morphologically…
Historical Aspects In an 1866 report titled “Concerning a very rare case of insufficiency of the tricuspid valve caused by a congenital malformation,” Dr. Wilhelm Ebstein (1836-1912), a German physician, described the unusual cardiac findings of a 19-year-old laborer who…