Combined mitral valve stenosis and tricuspid valve stenosis: Morphologic observations after mitral and tricuspid valve replacements or mitral replacement and tricuspid valve commissurotomy

Abstract

Among patients in the USA studied at necropsy with fatal valvular heart disease, the most frequent single valve lesion is aortic stenosis (29%), next mitral stenosis (19%), followed by pure aortic regurgitation (12%) and mitral regurgitation (10%). 1 Among necropsy patients with dysfunction of more than 1 cardiac valve (excluding patients with tricuspid regurgitation without anatomic abnormality of the tricuspid valve leaflets and chordae tendineae), the most common is combined mitral stenosis and aortic stenosis (15%) followed by combined mitral stenosis and aortic regurgitation (6%); then, combined pure mitral regurgitation and pure aortic regurgitation (4%); then, combined aortic stenosis and pure mitral regurgitation (2%), then, combined tricuspid, mitral and aortic valve stenosis (2%); and last, combined tricuspid valve stenosis and mitral valve stenosis (0.40%). 1 This presentation describes necropsy findings in 6 patients who had mitral valve replacement for mitral valve stenosis combined with tricuspid valve replacement or commissurotomy for tricuspid valve stenosis.