We were told that his stroke was caused by a 'clot' in his brain.
The streets are 'clotted' [='clogged'] with traffic.
medications that prevent blood from 'clotting'
(..) My guess Is that roberts demanded that walker quit. Walker's life was his job. And because of the damage the blood clot caused, I'm sure it made perfect sense to him. He had to kill roberts so that he could be there When the president (..)2016 TvShow: Bones Title: The Secret in the Service Season: 11 Episode 17
(..) He had a heart condition called patent foramen ovale. Now, by itself, it's asymptomatic. But since he was shot in the leg, it formed a blood clot. And instead of exiting through the heart and lungs, It migrated to his brain. So you're saying that the-the blood clot (..)2016 TvShow: Bones Title: The Secret in the Service Season: 11 Episode 17