William Thornton Mustard

William Thornton Mustard
Born(1914-08-08)August 8, 1914
DiedDecember 11, 1987(1987-12-11) (aged 73)
Alma materUniversity of Toronto
Occupation(s)Physician and cardiac surgeon
EmployerHospital for Sick Children
Known forSurgeon in the field of congenital heart defects

William Thornton Mustard OC MBE (August 8, 1914 December 11, 1987) was a Canadian physician and cardiac surgeon. In 1949, he was one of the first to perform open-heart surgery using a mechanical heart pump and biological lung on a dog at the Banting Institute. He developed two operations named for him: the "Mustard operation" in orthopedics used to help hip use in people with polio and the "Mustard cardiovascular procedure" used to help correct heart problems in "blue babies," which has saved thousands of children worldwide. He was also the first to treat ALCAPA with a left carotid artery end to end anastamosis in 1953.