There was an attempt made for a successful surgery..300% Mortality
There was an attempt made for a successful surgery..300% Mortality

www.thevintagenews.com
Robert Liston performed the only operation with a 300% mortality rate; His patient, his assistant and a spectator died | The Vintage News

Robert Liston performed the only operation with a 300% mortality rate; His patient, his assistant and a spectator died. I'm questioning if it was attempted though, it kinda seems like you'd have to try to kill all three...
Was this a thing back in the day? You get a little terrified and just drop dead?
Terror induced heart attack, maybe?
I believe it is unconfirmed if it actually happened. Liston was not exactly popular among the other surgeons, so it's likely they made up the story to hurt his reputation. He was really good at what he did.