Hello and thank you for using HCM. I carefully read your question and I understand your concern. I will try to explain and give you my opinion. We talk about hypertension if we have mean values that exceeds 140/90 mmHg. Hypertension is divided in two groups: essential or idiopathic hypertension without an identifiable cause and secondary hypertension, usually in young ages, meaning that is a secondary cause of it. This cause might be a renal disease, an endocrine problem, a cardiovascular pathology. As you explain, in your mother case we are dealing with essential hypertension. It is a chronic disease. It has not a definite cure, but it should be treated life long. If she has stable blood pressure value on tolol 25 mg, meaning values below 140/90 mmHg, than he has to continue with the same dosage. If she stop taking the medications her blood pressure will rise again. So, if I was your treating doctor i will recommend a holter pressure monitoring for 24 h, to know her mean values and decide the dosage ff medications. All sow i will recommend her a cardiac echo to evaluate the situation of her aortic valve as you explain. It is just a calcification or a stenosis there. The X ray is not enoth to evaluate the heart valve. It is very important becouse if it is a valve problem she has to change her medications. Hope I was helpful. Wish your mother good health. Best regards.