Alfred Blalock

Alfred Blalock (April 5, 1899 – September 15, 1964) was an American surgeon most noted for his work on the medical condition of shock as well as tetralogy of Fallot – commonly known as blue baby syndrome. He created, with assistance from his research and laboratory assistant Vivien Thomas and pediatric cardiologist Helen Taussig, the Blalock–Thomas–Taussig shunt, a surgical procedure to relieve the cyanosis from tetralogy of Fallot. This operation ushered in the modern era of neonatal cardiac surgery.