what is the normal pressure gradient of pulmonary artery?

Answer 1

Pulmonary stenosis occurs in 10-12% of cases of congenital heart disease in adults. The obstruction is vascular in 90% of patients, but may occur above or below the valve itself. There may be associated other congenital heart defects. Although the three valve cusps in stenosis are usually thin and pliant, their commissures are fused, leading to a dome-shaped valve with a small central opening during ventricular contraction (systole). The other 10% of cases have thickened, immobile and myxomatous. The normal valve area is 2.0 cm2 per square meter of body surface area, with no pressure gradient across the valve during systole. When the valve becomes stenotic, the right ventricle systolic pressure increases, creating a gradient across the valve. Pulmonary stenosis is mild, if the valve area is larger than 1.0 cm2 per square meter and the trans-valvular gradient is 50-80 mmHg, or the peak RV systolic pressure is less than 75 mmHg. The stenosis is moderate if valve area is 0.5-1.0 cm2 per square meter, trans-valvular gradient is 50-80 mmHg, or right ventricle systolic pressure is 75-100 mmHg. It is severe when the valve area is less than 0.5 cm2, and the gradient is more than 80 mmHg.

Answer 2

Normal Pressure Gradient

Answer 3

Did the cardiologist start you on any medications? A change in diet and lifestyle may help. I have PH at 58mm/Hg. The heart is slamming blood thru the pulmonary artery to the lungs. Transplant is the way to correct problem, sorry. I had moderate to severe regurgitation to both mitral and tricuspid valves which were repaired, via open heart surgery.