AHA/ASA Stroke Council Chair-elect and volunteer expert, Patrick D. Lyden, M.D., offers perspective (via Zoom) on ISC 20 presentations 11 and 114. He is Carmen and Louis Warschaw Chair in Neurology; professor, Neurology Cedars Sinai, Los Angeles, CA.
copyright American Heart Association 

"If the doctor chooses to put in the SPG device, it's a very tiny, little device that's inserted at the back of the mouth behind the molars into a little canal where it actually touches one of the nerves that goes to the brain, and that nerve, if it's stimulated correctly, can cause an increase in blood flow to the brain. So it's a tiny, little device that's literally squirted into the palate in the back where it stays in that little space and stimulates the nerve."