The spokesman, Daniel Ketchell, said in an email that the 70-year-old "Terminator" actor and former California governor is "home and doing incredibly well."
Schwarzenegger underwent a scheduled procedure March 29. A pulmonic valve originally installed in 1997 for a congenital heart defect had to be replaced. He's been tweeting from Cedars-Sinai Medical Center for several days, including this one on Monday:
"It's true: I'm back! I went to sleep expecting to wake up with a small incision and woke up with a big one - but guess what? I woke up, and that's something to be thankful for."
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