• A patient treated by surgical correction of carotid stenosis later died of subarachnoid hemorrhage from rupture of a previously asymptomatic ipsilateral cerebral aneurysm. When the two conditions coexist, the increase in blood flow resulting from repair of the stenosis may promote rupture of the higher aneurysm.
Adams HP. Carotid Stenosis and Coexisting Ipsilateral Intracranial AneurysmA Problem in Management. Arch Neurol. 1977;34(8):515–516. doi:10.1001/archneur.1977.00500200075017