Original Investigation

Intra-arterial Alteplase Thrombolysis After Successful Thrombectomy for AIS in the Posterior Circulation

JAMA Neurology 10.1001/jamaneurol.2026.1074

April 24, 2026 at 2:00 AM EDT

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Among patients with acute basilar artery occlusion treated within 24 hours of symptom onset and achieving successful mechanical recanalization, does intra-arterial alteplase improve clinical outcomes?In this randomized clinical trial including 246 patients, functional independence at 90 days was achieved in approximately half of patients in both the intra-arterial alteplase and control groups. Rates of symptomatic intracranial hemorrhage were similar across groups.Study results show that adjunctive intra-arterial alteplase after successful endovascular recanalization for acute stroke due to basilar artery occlusion seems safe but did not improve functional outcomes at 90 days.

Corresponding Authors: Liqun Jiao, MD, Department of Neurosurgery and Interventional Neuroradiology (liqunjiao@sina.cn), and Xunming Ji, MD, PhD, Department of Neurosurgery (jixm@ccmu.edu.cn), Xuanwu Hospital, China International Neuroscience Institute, Capital Medical University, National Center for Neurological Disorders, Beijing 100053, China.

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