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What Causes Severe Aortic Stenosis?

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Posted on Thu, 13 Oct 2016
Question: I have been diagnosed with severe aortic stenosis. I do take bp meds. Recently my bp reading are 125/58/55 which is lower than it normally was. I am 70 years old a bit overweight. Does any of this signal anything?

I am asymptomatic regarding the servere aotic stenosis
doctor
Answered by Dr. Diptanshu Das (24 minutes later)
Brief Answer:
Diastolic dysfunction

Detailed Answer:
Thanks for asking on HealthcareMagic. Let me assure you that I have the expertise to help you out and hence have taken up the question.

When the heart pumps there are two phases, contraction of the ventricles and the relaxation of the ventricles. The blood flows out to the body through the aorta and if there is an stenosis of the aorta or aortic valve, it basically acts as an outlet obstruction. Thus the total blood cannot be pumped out effectively and a backlog results. This interferes with the relaxation phase. The blood pressure has two components - the systolic (the higher one, related to the pumping of the ventricles) and diastolic (the lower one, related to the relaxation phase). The lower diastolic pressure (58 mm Hg in this case) indicates diastolic dysfunction or a problem in relaxation. This is exactly what I have explained in the pathophysiology. So these are related. It signals to indicate that there is diastolic dysfunction of the heart.

Let me know if I could help further.

Regards
Above answer was peer-reviewed by : Dr. Yogesh D
doctor
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Follow up: Dr. Diptanshu Das (2 hours later)
are you saying that the higher diadtolic number the better?
doctor
Answered by Dr. Diptanshu Das (4 minutes later)
Brief Answer:
Its not like that.

Detailed Answer:
No, I am not saying that. I am only indicating the explanation for the lower diastolic blood pressure. It is not expected that you have aortic stenosis and yet the entire blood volume would be pumped out without any residual amount. So the question of better or worse does not arise.

Regards
Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
Dr.
Dr. Diptanshu Das

Pediatrician

Practicing since :2005

Answered : 3877 Questions

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What Causes Severe Aortic Stenosis?

Brief Answer: Diastolic dysfunction Detailed Answer: Thanks for asking on HealthcareMagic. Let me assure you that I have the expertise to help you out and hence have taken up the question. When the heart pumps there are two phases, contraction of the ventricles and the relaxation of the ventricles. The blood flows out to the body through the aorta and if there is an stenosis of the aorta or aortic valve, it basically acts as an outlet obstruction. Thus the total blood cannot be pumped out effectively and a backlog results. This interferes with the relaxation phase. The blood pressure has two components - the systolic (the higher one, related to the pumping of the ventricles) and diastolic (the lower one, related to the relaxation phase). The lower diastolic pressure (58 mm Hg in this case) indicates diastolic dysfunction or a problem in relaxation. This is exactly what I have explained in the pathophysiology. So these are related. It signals to indicate that there is diastolic dysfunction of the heart. Let me know if I could help further. Regards