Disorder - Tricuspid stenosis

Organ Systems Involved
Cardiovascular

Alternative disorders described within LIDA

Ventricular hypoplasia; Pulmonic stenosis or atresia; Patent ductus arteriosus; Tricuspid atresia; Ebstein’s anomaly; Single (common) ventricle; Mitral stenosis

Presenting Signs

Tricuspid stenosis is a narrowing of the valve joining the first chamber of the heart (right atrium) to the second chamber of the heart (right ventricle). This narrowing causes resistance to blood flowing through the atrium, and blood backs up from the first chamber of the heart (right atrium) and into the veins. Cats may be able to compensate for this decreased blood flow initially, however their ability to compensate usually fails early in life and the cat will begin to show sign of disease. Typical signs of illness include: open mouth breathing particularly accompanying exercise, lethargy, distension of the abdomen (ascites) and a bluish colouration of the gums (cyanosis).

Breeds Affected
Siamese


PubMed References
Tricuspid stenosis

Contributor
Edward King