What is an acute aortic aneurysm?

Dilated aorta. An aortic aneurysm is an aorta which is larger than it is supposed to be. "acute" refers to the sudden onset of symptoms. The aneurysm can cause pain by suddenly enlarging, encroaching on surrounding parts of the chest or abdomen, or rupturing.
Acute what? Acute rupture of an aortic aneurysm ? Or do you mean acute aortic dissection with acute aneurysm formation with or without rupture?

Related Questions

Is aortic aneurysm a common condition?

No but its not rare. Abdominal aortic aneurysms are more common than thoracic . An aneurysm is defined as an enlargement of the aorta 1.5 x the normal diameter. The incidence is around 37 per 100, 000 patient yrs. There is a 3% prevalence in those over 50 yrs old. Male to female ratio of 9 to 1. Risk factors hypertension, high cholesterol, smoking, diabetes, family history and age. Read more...
Yes. Any blood vessel can dilate and become large enough to be called an aneurysm. Abdominal, infra renal are the most common. 5.5 -6 cm. Is a common size to intervene with an endograft or surgical, based on known natural history. The ascending and descending aorta can also be aneurysmal. Read more...