(CNN) -- Game show host and comedian Howie Mandel's irregular heartbeat scare is over, his publicist said Tuesday. Howie Mandel had an irregular heartbeat, but he did not have a heart attack, his publicist said. "Howie has been released from the hospital and will be back at work tomorrow," said Lewis Kay. "He appreciates everyone's concern." Mandel, 53, checked into a Toronto hospital Monday so doctors could monitor his condition, Kay said. He was in Toronto, filming segments for a new show "Howie Do It." The hour-long prank show debuted on NBC Friday. Mandel is the host of the American version of the game show "Deal or No Deal," which has brought huge ratings for NBC.
NEW: Howie Mandel released from Toronto hospital . Host of "Deal or No Deal" had been admitted with irregular heartbeat . Comedian was in Toronto, Canada, filming segments for a new show, "Howie Do It"