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Causes and Risk Factors

The exact cause for aortic dissection is unknown; however, risk factors associated with the condition have been identified. High blood pressure (hypertension) is the leading risk factor. Hypertension which is present in 2/3 of all cases, puts pressure on the aortic wall, weakening it and making it more likely to tear.

Other risk factors include the following:

Aortic aneurysm (enlarged blood vessel)
Aortic valve problems (e.g., aortic stenosis)
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