Pulmonary

Anatomy

The pulmonary valve is a tricuspid valve is similar in construction and size of the aortic valve. The valve has a right (R) -, a left (L) - and an anterior slip valve (A). The pulmonary valve is slightly above, left anterior aortic valve.[1]

Echocardiographic views

PSAX ao	Plax by tilted

Stenosis

Stenosis of the pulmonary valve is very rare . Although as with aortic stenosis , the cause may be located above or below the valve , the valve usually is a wrong engineered valve . Which is then deformed dome formation with a small opening .

Causes [1]
Congenital	Tetralogy of Falot
Acquired	Rheumatic fever Tumor

Tetralogy of Fallot

Tetralogy of Fallot is a heart defect described by Etienne Fallot (1850-1911) , with four different heart defects occur:

• Pulmonaalstenose
• VSD
• RV Hypertrophy
• About propelled aortic

Tetralogy of Fallot results in a lower concentration of oxygen in the blood by the mixing of oxygen - rich blood and into the ventricles . The obstruction of the pulmonary valve ensures that blood from the right ventricle to the aorta flows through the ventricular septal defect . Usually this syndrome marked by cyanosis of the baby . This disorder was formerly called blue baby syndrome therefore called , but there are also " pink Fallots ", where the obstruction of the pulmonary valve is less severe . These patients are usually detected with an image of heart failure by excessive flow of the pulmonary vascular tree . In rare cases, there is a balanced position , wherein the stenosis is large enough in order to protect ( against over- flow) , and is low enough not to cause too much. Cyanosis pulmonary vascular

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Insufficiency

Pulmonaalinsufficiëntie is a volume load on the RV . Important insufficiency will lead to RV dilation. This volume will load the RV long endure , but will eventually go the RV failure.

Causes [2]
Physiologic	Is found in 40-80% of people
Congenital	Wrong landscaped valve cusps or absence of (partial) cover slip.
Acquired	As a result of pulmonary hypertension. By balloon dilation or plastic PV at correcting pulmonaalstenose. Carcinoid Endocarditis.

References

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3. Geisinger - How the Heart Works