Patients with insufficient cerebral blood supply should be referred to neurology department for medical treatment. Cerebral blood supply insufficiency is mainly caused by cerebrovascular stenosis due to various reasons, which leads to insufficient cerebral tissue perfusion, dizziness, headache and other symptoms. First, we should improve the blood tests, such as biochemical routine, homocysteine, thyroid function, rheumatism series, etc. At the same time, TCD, cervical vascular ultrasound, heart and subclavian artery ultrasound should be performed to determine whether there is stenosis in the intracranial and extracranial vessels, as well as changes in blood flow velocity, and evaluate the degree of atherosclerosis. If necessary, the whole brain angiography can be performed to evaluate the situation of intracranial and extracranial vessels in more detail.
