In Canto Three of his poem John Shade (the poet in VN's novel Pale Fire, 1962) describes his heart attack that occured during a lecture he gave at the Crashaw Club:
The Crashaw Club had paid me to discuss
Why Poetry Is Meaningful to Us.
I gave my sermon, a dull thing but short.
As I was leaving in some haste, to thwart
The so-called "question period" at the end,