In this section
The Pulmonary Valve is thickened and narrowed leading to the
development of abnormally high pressure in the right ventricle. The
right ventricular wall becomes thickened ("Hypertrophied").
Stenosis (narrowing) of the pulmonary valve restricts flow into the
pulmonary srteries. This leads to the presence of a heart "murmur".
Often the narrowing is mild and does not put significant strain on
obstruction is severe, symptoms may develop, or the heart may show
evidence of "strain". The valve may require treatment to open it
up. This will usually be performed with the use of a "balloon
'Balloon Valvuloplasty' is a procedure done using a Heart
Catheter threaded up a vein from the leg.
A balloon at the tip of the catheter is placed across the valve
and is then inflated to 'Open Up' the narrow valve. This procedure
will usually remove the need for an operation, though if the valve
cannot be adequately opened with a balloon procedure surgery may be