The article presents a clinical case of endovascular treatment practice of a patient after carotid endarterectomy complicated by ischemic stroke. It is pointed out that early diagnosis allows well-timed detection of complications in the postoperative period and timely selection of treatment methods. The method of intravascular thromboectomy, which significantly reduces the onset of complications in the first hours after surgery, is described in detail. The tactics of management of patients with acute disorders of cerebral circulation during operations on brachiocephalic arteries are analyzed.