CNN boss Jeff Zucker will take a six-week leave from the company to deal with heart surgery.

CNN confirmed the details provided by Brian Stelter, the network’s media correspondent, who tweeted the news on Thursday.

Stelter said via Twitter: “Jeff Zucker just ended the CNN morning meeting with news of his own: He will be taking a six week leave for elective surgery to address a heart condition he has had for 10 years. He assured everyone he is going to be just fine. All of us are wishing him a very speedy recovery.”

Michael Bass, a longtime Zucker lieutenant who holds the role of executive vice president of programming, is expected to take up oversight of CNN’s editorial operations, while members of the management team will supervise other operations.

Besides the heart issue, Zucker, 53, has had past battles with cancer and Bell’s palsy.