Evidence-Based Protocols for Thrombolytic Selection and Endovascular Intervention in AIS

Article Impact Level: HIGH
Data Quality: STRONG
Summary of  Stroke https://doi.org/10.1161/STR.0000000000000513 
Dr. Shyam Prabhakaran,  et al.

Points

The updated 2026 AHA/ASA guideline establishes a comprehensive framework for the early management of acute ischemic stroke by integrating new clinical evidence regarding thrombolytic eligibility and endovascular thrombectomy protocols.
Pediatric stroke care receives formal standardization for children aged twenty-eight days to eighteen years with specific recommendations for magnetic resonance imaging and the use of intravenous alteplase within four hours.
Endovascular thrombectomy eligibility has been expanded to twenty-four hours for selected patients with large vessel occlusions even when advanced imaging indicates significant brain tissue damage or large core infarcts.
Tenecteplase is now endorsed alongside alteplase as an effective thrombolytic agent for acute ischemic stroke because its single-dose administration simplifies the treatment process and reduces critical delays in hospital settings.
Regional stroke systems must coordinate emergency medical services and telemedicine to ensure that patients are transported directly to thrombectomy-capable centers to reduce door-to-treatment times by thirty to sixty minutes.

Summary

The 2026 AHA/ASA guideline updates protocols for acute ischemic stroke (AIS) management, integrating new evidence for adult and, for the first time, pediatric populations. For patients aged 28 days to 18 years, the guideline standardizes recognition using F.A.S.T. and pediatric-specific markers like new-onset seizures. Magnetic resonance imaging (MRI) and angiography (MRA) are prioritized to differentiate arterial ischemic stroke from mimics. Pediatric patients with disabling deficits may be considered for intravenous alteplase within 4.5 hours, while mechanical thrombectomy is recommended for those aged 6 years and older within 6 to 24 hours.

For adult populations, the guideline endorses tenecteplase as an alternative to alteplase within the 4.5-hour window, noting that its single-dose administration simplifies acute delivery. Eligibility for endovascular thrombectomy (EVT) has expanded to 24 hours for selected patients with large vessel occlusions, including those with large core infarcts identified via ASPECTS. The protocol emphasizes that patients eligible for both thrombolysis and EVT should receive both treatments rapidly and sequentially without awaiting symptomatic improvement from pharmacological intervention.

To optimize outcomes, regional stroke systems must coordinate emergency medical services and telemedicine to facilitate direct transport to thrombectomy-capable stroke centers (TSCs). Hospitals are advised to achieve initial brain imaging within 25 minutes of arrival to distinguish ischemic from hemorrhagic events. These coordinated efforts aim to reduce treatment delays by 30 to 60 minutes, which is critical for salvageable brain tissue. Despite these advances, the guideline identifies continued research needs regarding hyperglycemia and dysphagia management in the acute phase.

Link to the article: https://www.ahajournals.org/doi/10.1161/STR.0000000000000513

References

Prabhakaran, S., Gonzalez, N. R., Zachrison, K. S., Adeoye, O., Alexandrov, A. W., Ansari, S. A., Chapman, S., Czap, A. L., Dumitrascu, O. M., Ishida, K., Jadhav, A. P., Johnson, B., Johnston, K. C., Khatri, P., Kimberly, W. T., Lee, V. H., Leslie-Mazwi, T. M., Mac Grory, B., Madsen, T. E., … Yaghi, S. (2026). 2026 guideline for the early management of patients with acute ischemic stroke: A guideline from the american heart association/american stroke association. Stroke, STR.0000000000000513. https://doi.org/10.1161/STR.0000000000000513