A 55 year old man presents to your cardiology clinic. He says that last week, he had an episode of fainting. He was sitting on the couch watching TV when he became extremely pale. He felt his heart "skip a beat." He then swooned into the arms of his wife who promptly dropped him to the ground. Once he hit the ground, he began to twitch for 15 seconds. About 15 seconds after he stopped twitching, he regained consciousness. After that, he became extremely flushed. He went to see his primary care doctor who referred him to you.
He is bradycardic and hypotensive. You look at the EKG taken by the primary care doctor.
Challenge: This syndrome is named after two Irish doctors. What is the syndrome?
1. What does the EKG show?
2. What causes the syncope?
Image is in the public domain.