Billet A, Queral L A, Polito W F, Dagher F J
Surgery. 1984 Nov;96(5):923-8.
A model for the vascular steal phenomenon was designed and evaluated in 10 mongrel dogs in which the aortic bifurcation was used to represent a parent artery with two distal vascular beds. Right lower extremity flow was increased with a femoral arteriovenous fistula, and progressively greater stenoses were applied to the distal abdominal aorta. Significant decreases in left lower extremity flow (a steal) occurred only when the stenosis of the aorta exceeded 60%. There was a direct relationship between the pressure drop across the aortic stenosis and the degree of steal from the left lower extremity. The stenosis required for a steal phenomenon to occur is analogous to a critical arterial stenosis for a given velocity of flow and the specific cross-sectional area of the distal arterial bed.
设计了一种血管窃血现象模型，并在10只杂种犬身上进行了评估。在这些犬中，用主动脉分叉来代表一条有两个远端血管床的母动脉。通过股动静脉瘘增加右下肢血流量，并对腹主动脉远端逐渐施加更大程度的狭窄。仅当主动脉狭窄超过60%时，左下肢血流量才会显著减少（窃血）。主动脉狭窄两端的压力降与左下肢窃血程度之间存在直接关系。对于给定的血流速度和远端动脉床的特定横截面积，发生窃血现象所需的狭窄程度类似于临界动脉狭窄。
