Robertson is back at home in Virginia Beach after his release last week from a hospital in North Carolina. He ultimately will be fitted with a heart monitor.
Dr. Andy C. Kiser (KEYE'-zer) said Robertson underwent the 10-hour surgical procedure at FirstHealth Moore Regional Hospital in Pinehurst, N.C., to repair an atrial fibrillation.
In a separate but related procedure, doctors also removed an abnormally enlarged left appendage on Robertson's heart. They believe the growth contributed to Robertson's atrial fibrillation.
Robertson is founder of the Christian Broadcasting Network.