Doctors who transplanted a heart into United Airlines CEO Oscar Munoz say the heart is functioning well and they are optimistic about a full recovery.
Munoz, who has been on medical leave for nearly three months, underwent a transplant Wednesday at Northwestern University's hospital in Chicago.
On Thursday, the Chicago airline disclosed that Munoz had a device implanted to help his heart after his heart attack on Oct. 15. The company said that a transplant was considered better than relying on the device for a long time.
United says Munoz is expected to return to work late in the first quarter or early in the second quarter. General counsel Brett Hart is running the company as acting CEO.