TARGET ARTERY OCCLUSION IMPACT AND THE WILLIS CIRCLE IMPACT ON THE ISCHEMIC STROKE OUTCOME AFTER THE SUCCESSFUL THROMBECTOMY

The article shows the Willis circle effect on the ischemic stroke outcome after successful endovascular thrombectomy with anterior circulation isolated cerebral artery occlusion and combined with extracerebral artery occlusion.Objective: To identify the stroke outcomes difference after successful thrombus removal from the anterior circulation artery, depending on the acute combined nature occlusion and the anatomical and physiological characteristics of the arterial brain circle.Methods: A thrombectomy group with combined middle cerebral and internal carotid arteries combined occlusion is represented by 26 patients. Another 26 patients underwent thrombectomy with isolated middle cerebral artery occlusion. The Willis circle anatomical features and the concomitant brachiocephalic arteries atherosclerotic lesion were retrospectively analyzed. A statistical evaluation of inpatient treatment results and complications of these groups was carried out using nonparametric methods.Results: The overall disability level was higher in the 1st group. A Carotid artery reocclusion in the 1st group was detected in 30.77% (8), which amounted to 61% of all tandem occlusions. But there was no signifi ant internal carotid artery reocclusion effect on the death relative risk this group. It was shown that the Willis circle fl w state did not show statistical effects on mortality, disability, and hemorrhagic complications both groups.Conclusions: The patient's survival with anterior arterial circulation acute stroke depends on the cerebral arteries supply restoration. Combined occlusions anterior cerebral circulation increase disability prognosis. The Willis circle fl w state did not demonstrate a statistical prognosis effect on the patients after successful thrombectomy.

stroke, thrombectomy, cerebral, multifocal, atherosclerosis