What are the recommended treatments for ischemic stroke or TIA after an extracranial carotid or vertebral arterial dissection?
In patients with ischemic stroke or TIA after an extracranial carotid or vertebral arterial dissection, treatment with antithrombotic therapy for at least 3 months is indicated to prevent recurrent stroke or TIA. In patients with ischemic stroke or TIA who are <3 months after an extracranial carotid or vertebral arterial dissection, it is reasonable to use either aspirin or warfarin to prevent recurrent stroke or TIA. In patients with stroke or TIA and extracranial carotid or vertebral artery dissection who have recurrent events despite antithrombotic therapy, endovascular therapy may be considered to prevent recurrent stroke or TIA.