RECO Flow Restoration Device Versus Solitaire FR With the Intention for Thrombectomy Study

Inclusion Criteria: 1. age (18-80 years) 2. acute ischemic stroke 3. within 8 hours after symptom onset 4. a large-vessel confirmed by CTA/MRA (eg, internal carotid, middle cerebral M1 and/or M2 segments) 5. NIHSS(≥8 and ≤24) 6. patients or their legally authorised representatives provided signed, informed consent. Exclusion Criteria: 1. CT or MRI evidence of intracranial haemorrhage/tumor 2. major ischaemic infarction (acute ischaemic change in more than a third of the middle cerebral artery territory) 3. NIHSS(≥25 and ≤7) 4. severe sustained hypertension (systolic blood pressure \>185 mm Hg or diastolic blood pressure \>110 mm Hg) 5. baseline glucose concentrations of less than 2·7 mmol/L or higher than 21.6 mmol/L 6. known haemorrhagic diathesis, coagulation factor deficiency, or oral anticoagulant therapy with an international normalised ratio of more than 1.7 7. treatment with heparin within 48 h with a partial thromboplastin time more than two times the laboratory normal, baseline platelet count of less than 100×10\^9/L 8. history of severe allergy (worse than rash) to contrast medium or nitinol 9. pregnancy