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Aortic dissection generally presents as a hypertensive emergency, and the prime consideration of medical management is to decrease the shear stress in the aortic wall (dP/dt (force of ejection of blood from the left ventricle)) by decreasing blood pressure and the heart rate.
The area where blood collects between the tunica intima and the media is called a false lumen, and the true lumen is the regular lumen of the blood vessel. Since high pressure is a cause of aortic dissection, it’s no surprise that the aorta is the prime target for this problem. So what causes aortic dissections?
Risk factors for aortic dissection include high blood pressure, having an aneurysm (when an artery becomes weak and balloons out), a buildup of artery plaque, being 60 and older, family history ...
Less common presentations include intracranial bleeding, aortic dissection, and pre-eclampsia or eclampsia. [6] Massive, rapid elevations in blood pressure can trigger any of these symptoms, and warrant further work-up by physicians. Physical exam would include measurement of blood pressure in both arms.
Aortic dissection. Aortic dissection is “one of the major causes of sudden death outside of the hospital,” says Dr. Ismail El-Hamamsy. Put simply, it’s when a tear occurs in the aorta ...
People who are experiencing aortic dissection, meanwhile—a tear in one of the body’s major arteries—describe sudden, stabbing pain in the middle of the chest that radiates to their back.
Acute aortic syndrome (AAS) describes a range of severe, painful, potentially life-threatening abnormalities of the aorta. [1] These include aortic dissection, intramural thrombus, and penetrating atherosclerotic aortic ulcer. [2] AAS can be caused by a lesion on the wall of the aorta that involves the tunica media, often in the descending ...
Arterial dissections become life-threatening when growth of the false lumen prevents perfusion of the true lumen and the related end organs. For example, in an aortic dissection, if the left subclavian artery orifice were distal to the origin of the dissection, then the left subclavian would be said to be perfused by the false lumen, while the left common carotid (and its end organ, the left ...
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