Patient's question:
My child was diagnosed with congenital aortic valve stenosis from birth. Over the past few years, I have been very concerned about my child's condition, fearing it might have a significant impact on his future life. So, I would like to ask the doctor, what should be done about congenital aortic valve stenosis?Doctor's answer:
Subaortic stenosis accounts for 3% to 8% of cases of congenital left ventricular outflow tract obstruction and is the second most common type after aortic valve stenosis. There are two common types: ① Localized subaortic stenosis, which includes membranous subaortic stenosis, where a fibrous membrane at 1.0 to 1.5 cm below the aortic valve causes stenosis, and fibromuscular subaortic stenosis. ② Diffuse subaortic stenosis is a tubular stenosis caused by diffuse muscular hypertrophy of the left ventricular outflow tract, also known as tunnel subaortic stenosis. Infants and children without symptoms do not require surgical treatment. Surgical intervention is only performed when the systolic pressure gradient at the stenotic site exceeds 50 mmHg, or when electrocardiography shows severe left ventricular hypertrophy and strain, or when secondary infections such as endocarditis are present.