Occlusive aortic disease caused by atherosclerosis
: usually confined to the distal abdominal aorta below the renal arteries
The severity of the symptoms depends on the adequacy of collaterals
With sufficient collateral blood flow
: a complete occlusion of the abdominal aorta may occur without the development of ischemic symptoms.
Acute occlusion in the distal abdomi
disease.
Diseases of the pancreas produce back pain to the right of the spine (head of the pancreas involved) or to the left (body or tail involved)
A careful abdominal examination revealing a pulsatile mass (present in 50–75% of patients) is an important physical finding. Patients with suspected abdominal aorticaneurysm should be evaluated with abdominal ultrasound, CT, or MRI.
60%.
발병장소:thoracic and abdominal aorta.
-Occlusive aortic disease의 원인:
distal abdominal aorta below the renal arteries에 발생하는 atherosclerosis .
-증상의 심각성은 adequacy of collaterals에 달려있다.
충분한 collateral blood flow존재한다면,
ischemic symptoms 발달 없이 abdominal aorta 의 완전한 폐쇄가 발생할 수 있다
Aneurysm)
:동맥벽이 탄력성을 잃어 부분적으로 약해지거나 늘어나서 영구적으로 확장된 상태
1)병태생리
- 40~70세 남성에게 흔히 발생
⇨발병 후 1년 내 파열될 확률은 동맥류 지름이 6cm 이상인 경우50%, 6cm이하인 경우 15~20%정도임
- 대동맥의 진균성동맥류는 죽상경화증이든 외상이든 또는 선천성