But she had an artificial heart put in like the ones used to treat people with similar problems and now she's as good as new!
Without it she could have died in weeks.
It cost her owner Caroline Dore £2,000 but she says it was worth every penny.
She said: "To have her fit again is the best Christmas present I could have had."
The first time a dog was given a pacemaker was way back in 1968..