Aortic Dissection »
Introduction to aortic dissection
The aorta is the large blood vessel that leads from the heart and carries
blood to the rest of the body. The aorta originates at the aortic valve at the
outlet of the left ventricle of the heart. It ascends in the chest to an arch
where blood vessels branch off to supply blood flow to the arms and head. It
then begins to descend through the chest and into the abdomen, where it splits
into two iliac arteries that provide blood flow to the legs. Along its descent,
more small arteries branch out to supply blood to the stomach, intestine, colon,
kidneys, and the spinal cord.
The aorta has a thick wall, with three layers of muscle that allow the blood
vessel to withstand the high pressure that is generated when the heart pumps
blood to the body. The three layers are the tunica intima, tunica media, and the
tunic adventitia. The intima is the inside layer that is in contact with the
blood, the media is in the middl...
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A year ago in March, I had what I thought would be a routine follow-up to a cardiac stress test. I wasn't able to get my heart rate high enough, so I had to use the chemical stress test. The doctor said something didn't look right with the stress test, so it was followed up with cardiac catheterization. During the cardiac catheterization, several blockages of 80 to 90% were discovered; this was on a Friday. Since I had tried Plavix and couldn't tolerate it, stents were not an option. (Also I am a type 2 diabetic.) I had triple bypass surgery the next Monday. They managed any pain I might have been experiencing very well. I did experience nausea for several weeks after the surgery and was on an anti-nausea agent. I followed up the surgery with cardiac rehab therapy three times a week for 12 weeks. I still sometimes experience a greater sensitivity to cold. Other than that, most things are back to normal, and I exercise several times a week. I just concluded a one-year follow-up stress test, which I passed with flying colors. Published: April 17 ::