Frank Sinatra has improved constantly since suffering a heart attack and will go home from the hospital this week, a hospital spokesman said Monday.

“Frank is doing well and I’m waiting for them to tell me when he’s going to be released, sometime later this week,” said Ron Wise, spokesman for Cedars-Sinai Medical Center.

Sinatra, 81, was hospitalized Thursday for what Dr. Rex Kennamer called an apparent “uncomplicated heart attack.”