Anatomy and Physiology of the Tricuspid Valve

Summary An appreciation of the complex and variable anatomy of the tricuspid valve is essential to unraveling the pathophysiology of tricuspid regurgitation. A greater appreciation of normal and abnormal anatomy is important as new methods of treating the tricuspid regurgitation are developed. This review of tricuspid valve and right heart anatomy is followed by a discussion of the possible pathophysiology of secondary (functional) tricuspid regurgitation.