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Prehospital Thrombolysis: A Manual from Berlin

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Published on: November 26, 2013

Tenecteplase Thrombolysis in Posterior Circulation Stroke.

Fana Alemseged¹, Bruce C V Campbell¹

¹Department of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia.

Frontiers in Neurology

|August 23, 2021

Summary

Tenecteplase shows promise for treating basilar artery occlusion, a severe stroke type. It offers higher reperfusion rates and practical benefits over alteplase, especially for transfer patients.

Keywords:

alteplase basilar artery occlusion posterior circulation stroke tenecteplase thrombolytic agent

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Area of Science:

Neurology
Vascular Medicine
Pharmacology

Background:

Posterior circulation ischaemic stroke, including basilar artery occlusion, carries high mortality and disability risks.
Current treatments like alteplase have limited reperfusion success (~4%) in basilar artery occlusion.
Tenecteplase, a modified alteplase, offers improved fibrin specificity, a longer half-life, and bolus administration.

Purpose of the Study:

To evaluate tenecteplase as an alternative to alteplase for basilar artery occlusion.
To compare reperfusion rates and functional outcomes between tenecteplase and alteplase.
To assess the practical advantages of tenecteplase in 'drip and ship' scenarios.

Main Methods:

Observational data analysis comparing tenecteplase and alteplase in basilar artery occlusion patients.
Review of findings from the EXTEND-IA TNK trial for large-vessel occlusion strokes.
Comparison of reperfusion rates and modified Rankin Scale outcomes.

Main Results:

Tenecteplase achieved significantly higher reperfusion rates (26%) compared to alteplase (7%) in observational basilar artery occlusion data.
The EXTEND-IA TNK trial showed higher reperfusion (22% vs 10%) and improved functional outcomes with tenecteplase in large-vessel occlusion.
Tenecteplase's bolus administration is a key practical advantage, especially for inter-hospital transfers.

Conclusions:

Tenecteplase demonstrates potential as an effective alternative to alteplase for basilar artery occlusion.
Further randomized controlled trials are warranted to confirm these findings.
Tenecteplase offers significant advantages in reperfusion efficacy and administration practicality for basilar artery occlusion patients.