How does a child develop aortic stenosis at such an early age, isn't this a disease for the elderly?
Not Only Elderly. You are correct in that as is common in the elderly. But children are not little adults, and the process is different. In children with, the aortic valve itself usually did not develop normally. Or, they contracted a disease like rheumatic fever which affects heart valves (quite rare in the west). Please discuss your specific issues with your cardiologist.