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A 44-year-old member asked:

is there a reason why i am restricted from donating plasma because of a bicuspid aortic valve?

1 doctor answer4 doctors weighed in
Dr. Rick Koch
Cardiology 22 years experience
Never heard of: This restriction unless your BP is low due to resultant aortic valve stenosis.

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A 21-year-old member asked:

What are the advantages of the plasma free metanephrine blood test over the standard urine tests for pheochromocytoma?

1 doctor answer2 doctors weighed in
Dr. John Szawaluk
Cardiology 31 years experience
Sensitive: More sensitive and specific especially if the index of suspicion is fairly high. More expensive however.
A 40-year-old member asked:

What causes abdominal aortic aneurysm?

4 doctor answers11 doctors weighed in
Dr. Mark Stern
Cardiology 46 years experience
Hypertension & genes: Genetics plus hypertension plus age.
Dr. Oliver Aalami
Vascular Surgery 23 years experience
The three greatest risk factors for AAAs are being MALE, > 65 yrs, and having ever smoked.
Oct 17, 2011
Dr. Mark Stern
Dr. Mark Stern commented
Cardiology 46 years experience
Provided original answer
Dr Oliver Aalami makes a very good point about smoking in addition to age and genes
Oct 18, 2011
Dr. Mario Matos-Cruz
Thoracic Surgery 39 years experience
Most abdominal aneurysms are arteriosclerotic resulting from cystic medial necrosis of the aortic wall secondary to arteriosclerotic obliteration of the vasa vasorum. Genetics determine your predisposition to arteiosclerosis and cigarette smoking accelerates the process.
Feb 22, 2012
CA
A 35-year-old member asked:

What does a tortuous abdominal aortic aneurysm mean?

3 doctor answers10 doctors weighed in
Dr. Oliver Aalami
Vascular Surgery 23 years experience
With twists/bends: The term "tortuous" simply means: full of twists, turns and bends. In medicine we use this to describe the pathway of veins or arteries. When either veins or arteries "grow" to become varicose veins or aneurysms, not only do they grow in diameter, but also in length. As they grow longer, they start bending and twisting to accommodate and "fit" into the same body.
CA
A 25-year-old member asked:

What is an infrarenal abdominal aortic aneurysm?

3 doctor answers10 doctors weighed in
Dr. Oliver Aalami
Vascular Surgery 23 years experience
Ballooning Artery: An infrarenal abdominal aortic aneurysm is the dilitation or ballooning of the abdominal aorta below the branches that provide blood to the kidneys. It is believed that the wall of the artery weakens over time from inflammation. This weakening causes the artery to swell. When > 5cm in diameter the risk of rupture and bleeding goes up dramatically. This is life threatening and is typically repaired.
A 34-year-old member asked:

What is the pathophysiology of abdominal aortic aneurysm?

3 doctor answers10 doctors weighed in
Dr. Oliver Aalami
Vascular Surgery 23 years experience
Inflammatory process: The exact mechanism for AAA formation is not known. There are several etiologies/theories. The most widely accepted is that aaas form due to an inflammatory process in the wall of the aorta associated with atherosclerosis. Inflammatory cells are thought to degrade structural proteins (such as elastin) in the wall of the aorta, weakening it and allowing for aneurysm formation.

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Last updated Dec 21, 2017

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