COEUR D'ALENE, Idaho - Oscar-winning actress Patty Duke will undergo single heart bypass surgery Wednesday at Kootenai Medical Center.
Duke, 57, won a best-supporting actress Oscar in 1963 for her portrayal of Helen Keller in "The Miracle Worker." She won an Emmy Award in 1980 for her role as Keller's teacher, Annie Sullivan, in the TV movie.
She is expected to make a successful recovery, hospital spokeswoman Lisa Johnson said Tuesday. Duke will be under the care of Dr. Robert Burnett at the facility's North Idaho Heart Center.
Last spring, she was admitted to the center for insertion of a stent in one of her arteries to improve blood flow.
Duke moved to the Coeur d'Alene area in the early 1990s, where she lives with her husband, Mike Pearce.
Her sons Mackenzie and Sean Astin are actors. Sean Astin starred in "The Lord of the Rings" movies.
Duke played identical teenage cousins, Patty and Cathy Lane, on the '60s comedy, "The Patty Duke Show," and won Emmys for "My Sweet Charlie" and "Captains and the Kings."
Earlier this year, she received a star on the Hollywood Walk of Fame.