What is the maximum time from last known normal when endovascular therapy can be performed?

The maximum time from last known normal when endovascular therapy can be performed varies depending on the specific situation and guidelines may differ between healthcare providers. Generally, endovascular therapy, such as thrombectomy for acute ischemic stroke, is most effective when performed within 6 hours of symptom onset. However, in some cases, this window may be extended up to 24 hours for certain patients who meet specific criteria, such as having a large vessel occlusion or salvageable brain tissue.

It is important for healthcare providers to carefully assess each individual case to determine the appropriate timing for endovascular therapy. Delaying treatment beyond the recommended time window can decrease the effectiveness of the procedure and potentially lead to poorer outcomes for the patient.