Spoiler for Gruesome Details Not For The Squeamish: (Highlight or hover over the text to view)
So they shoved a tube into my wrist, pushed it all the way up to the blockage, then put a tiny balloon in and inflated it to widen the artery and release the blockage. Then they removed the balloon and replaced it with a small metal tube to keep the artery open. Was awake the whole time, and watching the procedure on TV. No popcorn though. :(