Barlow told the news outlet, "Doctors say the procedure was a success," and thanked everyone for their prayers and well-wishes during these past few days.
The 16-time World champion entered to an Atlanta-area hospital on Thursday in order to have the procedure the following day, but complications arose that needed to be addressed. As a result of those complications, surgery was delayed until Monday.
Flair had previously dealt with heart-related issues, resulting in him being hospitalized for over a month, beginning in August 2017. Despite reportedly being given merely a 20 percent chance of surviving that ordeal (which included the onset of heart and kidney failure, as well as pneumonia), Flair recovered, returning home in September 2017.
Flair was said to have been confident and in good spirits going into the procedure. However, due to his recovery, he will not be able to take part in Starrcast weekend, nor the scheduled celebrity roast in his honor, in Las Vegas later this week.