| S.No | Proven intervention for acute stroke |
| 1 | Intravenous rt-PA within 3 hours in USA and 4.5 hours in other countries (a longer therapeutic window is accepted for acute occlusion of basilar artery)[3,4] |
| 2 | Aspirin within 48 hours[5] |
| 3 | Thrombectomy(with modern stent retrievers) within 8 hours[6-8] |
| 4 | Stroke care unit[9] |
| 5 | Hemicraniectomy for severe cerebral edema [10] |