Movie producer John Derek, husband of actress Bo Derek, was in extremely critical condition Friday following heart surgery.

Derek, 71, underwent lengthy surgery early Thursday at Marian Medical Center, a day after he was found unconscious in his Santa Ynez Valley home. A nursing supervisor confirmed his condition Friday morning.Dr. Luke Faber, the cardiac surgeon, described Derek's condition as a spontaneous catastrophic injury to the heart and aorta, which carries blood to the arteries for distribution throughout the body.

Bo Derek, star of the film "10," was at his bedside.