7th June 2021

A 70-year-old attends A&E complaining of visual loss

A 70-year-old attends A&E complaining of visual loss. Earlier that day he suddenly lost the sight in his right eye, with no associated pain or any other abnormality – he tells you his vision “just went black”, and that it was definitely only that eye, as he tested both. After around 5 minutes, the vision gradually returned and he now feels back to normal. A CT head is done, with no obvious abnormality.  The patient is started on high dose aspirin for treatment of a TIA, along with medications for secondary prevention. Carotid dopplers subsequently show moderate stenosis of the right common carotid and severe stenosis of the left common carotid arteries. 

Select the SINGLE most appropriate subsequent management option from the list below. Select ONE option only.