Here is a description of What Pulmonic Stenosis is.
What is PULMONIC STENOSIS??? the condition that I have...here's some info:Pulmonic stenosis is a congenital narrowing in the region of the pulmonary valve, which lies between the right ventricular chamber of the heart and the pulmonary artery. As part of the normal circulation of the heart, the right ventricle pumps blood to the lungs to receive oxygen. The oxygenated blood goes back to the left side of the heart from which it is pumped out to the rest of the body.With pulmonic stenosis, there is partial obstruction of normal blood flow, most commonly due to a malformation of the pulmonic valve (pulmonic valve dysplasia), but the abnormality may be immediately above or below the valve as well.The effect of this partial obstruction is to force the heart to work harder to pump blood to the lungs. The extent to which a dog will be affected depends on the degree of narrowing (stenosis) of the valve area. With severe stenosis, the dogs will likely develop congestive heart failure due to the increased workload of the heart. The hemodynamic consequences of pulmonic stenosis are the development of right ventricular concentric hypertrophy (enlargement) and reduced filling of the left ventricle. The right ventricular concentric hypertrophy causes reduced right ventricular compliance with reduced distensibility.Mild to moderate stenosis can be monitored, severe needs a operation… or your pet has a life span of 6-12 months left. SADLY MY STENOSIS IS SEVERE.
The heart on the left is normal showing its pulmonic valve wide open accepting blood. The heart on the right has pulmonic stenosis. Note how little blood flow can get through its pulmonic valve.