Acute and Chronic Aortic Dissection
Aortic dissection is defined as acute within 14 days after onset of symptoms. This definition is used in trials and in clinical practice. In contrast to patients with acute complications, such as rupture, rapid enlargement and malperfusion, patients with chronic dissection are treated for aneurysm formation.
Heart Failure
Heart failure, sometimes known as Congestive Heart Failure (CHF), occurs when the heart can't pump enough to the rest of the body. If the heart muscle cannot pump enough blood, it cannot meet the body's needs for blood and oxygen. The heart is a pump that circulates the blood throughout the body.