Efficacy and Safety of Endovascular Thrombectomy in Acute Ischemic Stroke With Posterior Circulation Large Infarct

Exclusion Criteria

• •1. Intracranial hemorrhage (except microhemorrhage) on CT/MRI ;
• •2. CT/MRI revealed large infarction in the cerebellar hemisphere, with significant mass effect causing compression of the fourth ventricle or brainstem;
• •3. CT or MRI showed bilateral complete thalamic infarction;
• •4. Occlusion of anterior and posterior circulation arteries confirmed by CTA/MRA/DSA;
• •5. The presence of intracranial tumors (except for small meningiomas and cerebral aneurysms with a diameter of \<3mm);
• •6. Patients with known or highly suspected chronic basilar artery occlusion.;
• •7. Known severe allergy to contrast agents (except for mild rash);
• •8. Refractory hypertension (defined as systolic blood pressure \> 185 mmHg or diastolic blood pressure \>110 mmHg) that cannot be controlled by drug therapy;
• •9. Known pregnant or lactating females, or positive pregnancy test before enrollment;
• •10. Acute cerebral infarction within 48 hours after cardiovascular and cerebrovascular intervention or major surgery (patients more than 48 hours can be enrolled).