First prospective, single-arm, single-centre study to evaluate the efficacy and safety of the iNstroke thromboaspiration catheter system (iNstroke) for stroke in patients with acute ischemic stroke.

This is a prospective, single-arm, single-centre clinical safety and efficacy research.

The purpose of the study is to evaluate safety and efficacy the device designed by iVascular for thromboaspiration (iNstroke) in patients who have suffered a stroke and who undergo thromboaspiration due to an acute occlusion of neuro vessels.

Inclusion Criteria:

1. Patients with acute ischaemic stroke over 18 years of age caused by large vessel occlusion (TICA, extracranial ICA, M1, vertebral artery segment V4 or basilar artery) and receiving neurointerventional treatment with the iNstroke aspiration catheter.
2. Informed consent signed by the patient or their representative, or deferred informed consent to avoid delaying commencement of mechanical thrombectomy.
3. Patients with an ASPECTS (Alberta Stroke Program Early CT Score) score ≥ 6
4. In patients having onset of stroke more than 8 hours previously, wake-up strokes, or unknown time of onset, treatment must be customised and CT perfusion must show penumbra.
5. Initial NIHSS score before procedure > 6.

Exclusion Criteria:

1. Patients under 18 years of age.
2. Patients with an ASPECTS score <6.
3. Baseline NIHSS obtained before procedure of ≤ 6 points.
4. Severe comorbidity and/or shortened life expectancy
5. mRS > 2.
6. Serious allergy to contrast medium.
7. Pregnant women.
8. Patients with intracranial atherosclerotic occlusive disease or extra- or intracranial dissection
9. Personal history of thrombocytopaenia (<40,000 platelets)

All consecutive patients experiencing acute ischaemic stroke of the anterior circulation with occlusion of TICA, M1, extracranial ICA, vertebral artery segment V4 or basilar artery, treated with iNstroke aspiration catheter and complying with the eligibility criteria.