Arterial blood stealing

Arterial stealing blood: Carotid stealing syndrome means that when one internal carotid artery is occluded, the healthy internal carotid artery blood flows into the affected side through the anterior communication artery, and the healthy internal carotid artery blood flows into the affected side through the anterior communication artery. There is an ischemic manifestation of the internal carotid artery on the healthy side, or the vertebrobasilar blood flow can flow back into the internal carotid artery of the ipsilateral side through the posterior communication artery, resulting in an ischemic manifestation of the vertebrobasilar system, such as bilateral internal carotid artery occlusion. The vertebrobasilar and external carotid arteries compensate for the blood supply, and the brain and cerebellum may be damaged at the same time. The etiology is mostly atherosclerotic plate formation. Clinical manifestations of recurrent transient carotid insufficiency of the internal carotid artery system, such as transient dark Mongolia on the side of the lesion, numbness of the limb on the opposite side of the lesion, hemiplegia, aphasia, etc. Internal carotid artery stenosis is> 75%, vascular noise can be heard, and internal carotid pulse is weakened or small. When the ischemic symptoms appear in a blood vessel supply area and the DSA is normal, the possibility of cerebral arterial reflux or stolen blood syndrome should be considered.