Abdominal Aortic Aneurysm

In Abdominal Aortic Aneurysm, Pulsating abdominal mass Aortic calcification is noted on x-ray. Mild to severe mid abdominal or lumbar back pain Cool, cyanotic extremities if iliac arteries are involved Claudication (ischemic pain with exercise, relieved by rest) Complication: peripheral emboli to lower extremities Rupture and hemorrhage.

  • An Abdominal Aortic Aneurysm (AAA) is a permanent localized dilatation of the abdominal aorta.
  • The disorder is conventionally diagnosed if the aortic diameter is 30 mm Or more.

Or increase in size of Vessel 1 and half times normal diameter

Abdominal Aortic Aneurysm Classification

1] Thoracic aortic aneurism.

2] Abdominal aortic aneurism

Definition of aneurysms: Is a localized sac or swelling in the wall of an artery due to weak point in the vessel wall. An aneurysm is a weak point in a blood vessel wall, most commonly in an artery. We have many forms of aneurysms but the most common forms of aneurysms are secular or fusiform aneurysm.

Clinical presentation

Most AAAs are asymptomatic unless they leak or rupture.

Un-ruptured aneurysms may uncommonly cause abdominal or back pain, or a pulsatile mass, if large.

Ruptured aneurysms present with severe abdominal or back pain, hypotension and shock.

What causes Abdominal Aortic Aneurysm?

The aortic wall:

  • Genetic predisposition
  • Marfans
  • Loyes-Die
  • Ehlers Danlos ‘Atherosclerosis’
  • Haemo-dynamic strain
  • Thrombus formation
  • Enzymatic degradation
  • Vasculitis
  • Syphilis
  • Cystic medial necrosis
  • Trauma


  • Control of risk factors
  • Ultrasound screening roughly halves AAA related mortality in men over the age of 65.
  • For men aged 65 years and older.


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