pressure, Current tobacco use, Cardiac or renal transplant, Critical wall stress–wall strength
relationship
AAA is an important clinical diagnosis because it is associated with considerable risk of
rupture and death as the aneurysm enlarges to a diameter of more than 5.0cm (1.96
inches).
, Evidence suggests that the high prevalence of AAA in patients with COPD may be related to
medications (oral steroids) and coexisting diseases rather than to a common pathway of
pathogenesis involving plasma elastase or α1-antitrypsin deficiency
AAA and elevated homocysteine plasma levels.
AAA represent 75% of aortic aneurysms
3. Know the symptoms of an abdominal aortic aneurysm.
AAA may cause symptoms as a result of the pressure on surrounding structures, about 75% are
asymptomatic at initial diagnosis.
Symptoms:
Symptomatic aneurysms increase in number after the age of 70years.
In thin patients, a supine abdominal examination may readily show a pulsatile abdominal mass,
Inflammatory AAAs may be manifested with chronic abdominal pain or back pain and,
sometimes, ureteral obstruction
Microembolic infarcts in the lower extremity of a patient with easily palpable pedal pulses may
suggest either abdominal or popliteal aneurysm. Embolization of mural thrombus from an
abdominal aneurysm may be seen with acute limb ischemia caused by femoral or popliteal
occlusion.
Symptom and sign of a ruptured AAA
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