Principles of treatment selection: Balancing risk and benefit is an important basis for selecting treatment options. In hyperacute stroke thrombolysis, thrombolysis is not recommended if the risks of thrombolysis outweigh the benefits; if the potential benefits outweigh the risks, then thrombolysis is recommended. Risk of stroke itself: Some strokes are often caused by occlusion of large blood vessels, resulting in large infarcts. Large infarcts may not only be extremely disabling but also potentially life-threatening to the patient. Large infarcts also have a high rate of hemorrhagic conversion, thus making the presence of cerebral hemorrhage and cerebral infarction the same, and complicating subsequent treatment. In posterior circulation strokes, which may bring more severe functional impairment and higher mortality, patients may have a residual death rate of more than 90% if treated conventionally, and conventional intravenous or arterial thrombolysis does not significantly improve the prognosis. Risks of Thrombectomy: The risks of thrombectomy arise in part more from the risks of the disease itself, which include cerebral vessel rupture, thrombus migration, and ineffective recanalization. Because of the use of stents for embolization, there is a risk of vessel rupture due to the possibility of vessel penetration displacement or vessel entrapment and other injuries during the embolization process. Due to the use of stents for thrombus removal, the thrombus attached to the stent during the process of stent removal may be dislodged during the removal process, resulting in occlusion of other vessels, which becomes thrombus migration. In some patients, during the process of thrombus removal, the brain tissue remains infarcted after thrombus removal because the brain tissue is already infarcted, and this imaging recanalization becomes an ineffective recanalization. After large infarcts, cerebral infarcts are prone to hemorrhagic conversion, and this conversion may exist even without embolization. However, the results of current national and international studies show that patients with vascular occlusion clearly benefit from embolization. Benefits of embolization: After embolization, complete revascularization can be achieved, resulting in the complete elimination of neurological deficits and possible immediate postoperative recovery of symptoms such as hemiplegia, speech impairment, or coma. In a large case study, 1 in 4 people benefited from embolization. In some of our patients with embolization, immediate symptom relief was observed, with some patients experiencing gradual or substantial return to normal symptoms within a few days after the procedure. Related point: In the presence of large vessel occlusion, embolization therapy needs to be chosen to open the vessel in a timely manner.