- Heart Disease Slideshow Pictures
- Medical Illustrations of the Heart Image Collection
- Take the Heart Disease Quiz!
- Patient Comments: Aortic Dissection - Experience
- Patient Comments: Aortic Dissection - Diagnosis
- Patient Comments: Aortic Dissection - Symptoms
- Patient Comments: Aortic Dissection - Treatment
- Aortic dissection facts
- Introduction to aortic dissection
- What are the causes of aortic dissection?
- What are the signs and symptoms of aortic dissection?
- How is aortic dissection diagnosed?
- What is the treatment for aortic dissection?
- What is the prognosis for aortic dissection?
- Can aortic dissection be prevented?
What are the causes of aortic dissection?
It is uncertain as to why the initial tear (rent) occurs in the intima layer of the aortic wall. Aortic dissection tends to occur most commonly in men between the ages of 50 and 70.
High blood pressure: Most cases are associated with high blood pressure (hypertension). The aorta has to withstand significant pressure changes with each heartbeat, and it may be that over time with hypertension, a weakening of an area of the intima will occur.
Some conditions increase the risk of aortic dissection or are associated with the condition, including:
- Bicuspid aortic valve (a congenital abnormality of the aortic valve)
- Marfan syndrome
- Ehlers-Danlos syndrome
- Turner syndrome
- Cocaine use
Trauma: Blunt trauma is known to cause aortic dissection, which is often seen after car wrecks in which the patient's chest hits the steering wheel.
Surgical complications: Aortic dissection can be a complication of medical operations including coronary artery bypass grafting and aortic and mitral valve repairs. It can also be a complication of heart catheterization.