He later reported he'd undergo a "big operation" at Stanford University Hospital for marfans - a genetic disorder affecting the heart. He's previously been treated for the condition.

Now he's posted a photo of his discharge sheet via Instagram, which follows with a shot of a doctor who looked after him. Carlile says: "Dr Craig Miller literally held my heart in his hands about five years ago. Today it's still working. Today I'm still alive - that's what you call a hero."

He's previously said: "Even when I finally do get back home, there's still progress to be had from there. Small steps!" Read more and see his online posts - here.

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