Tricuspid stenosis echocardiography

	Tricuspid stenosis Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Echocardiography

The diagnosis and the severity can be assessed by echocardiography ^[1].

Using continuous wave doppler across the tricuspid valve in apical-4-chamber view. The peak gradient can be calculated using the modified Bernoulli equation.

Tricuspid valve area = ( annulus PW Vti * Cross sectional area of the annulus) / valve CW Vti

**Severity of tricuspid stenosis**
Severity	mild	moderate	severe
Tricuspid valve area	-	-	<1
Mean Pressure Gradient	<4	4-7	>7

v t e Congenital malformations and deformations of circulatory system (Q20-Q28, 745-747)
Cardiac chambers and connections	Persistent truncus arteriosus - Double outlet right ventricle (Taussig-Bing syndrome) - Transposition of the great vessels (dextro, levo)
Cardiac septa	Ventricular septal defect - Atrial septal defect (Lutembacher's syndrome) - Atrioventricular septal defect (Ostium primum) - Tetralogy of Fallot - Eisenmenger's syndrome
Right: pulmonary and tricuspid valves	pulmonary valves (stenosis, insufficiency) - tricuspid valves (stenosis, atresia) - Ebstein's anomaly
Left: aortic and mitral valves	aortic valves (stenosis, insufficiency, bicuspid) - mitral valves (stenosis, regurgitation) - Hypoplastic left heart syndrome
Other congenital malformations of heart	Dextrocardia - Levocardia - Cor triatriatum
Great arteries	aorta (Patent ductus arteriosus, Aortic coarctation, Interrupted aortic arch, Overriding aorta, Aneurysm of sinus of Valsalva, Vascular ring) - Pulmonary atresia
Great veins	Persistent left superior vena cava - Total anomalous pulmonary venous connection - Scimitar syndrome
Other	Arteriovenous malformation (Cerebral arteriovenous malformation)
See also non-congenital conditions (I, 390-459)