Flashcards in AAA Deck (8)
What is abdominal aortic aneurysm (AAA)?
A localised dilatation of the aorta beyond its normal diameter
What is the law of Laplace?
tension = [pressure x radius] / wall thickness
What are some of the risk factors for developing AAA?
What investigations should be done if aortic aneurysm suspected?
Why is use of ultrasound for investigation of AAA limited?
Only tells if AAA is present - does not give any indication of diameter
How does Endovascular Aneurysm Repair (EVAR) fix an aneurysm?
It excludes the dilated part of the aorta beyond the normal diameter from the normal blood flow by putting a metal tube in the path of the normal diameter
How is EVAR done?
It is inserted via a peripheral artery and is Xray guided