Riggs Jack E. M.D.; Ketonen, Leena M. M.D., Ph.D.; Bodensteiner, John B. M.D.; Benesch, Curtis G. M.D.Clinical Neuropharmacology: August 1993 Brief Report: PDF Only Abstract Summary: A 38-year-old man, stung repeatedly by wasps on the left face and neck, had his left internal carotid artery occluded 2 days later. A mechanism for ischemic stroke involving the sympathetic innervation of cerebral vasculature is suggested. © Williams & Wilkins 1993. All Rights Reserved.