Vivien Thomas - Blue Baby Syndrome

Blue Baby Syndrome

In 1943, while pursuing his shock research, Blalock was approached by renowned pediatric cardiologist Dr. Helen Taussig, who was seeking a surgical solution to a complex and fatal four-part heart anomaly called Tetralogy of Fallot (also known as blue baby syndrome, although other cardiac anomalies produce blueness, or cyanosis). In infants born with this defect, blood is shunted past the lungs, thus creating oxygen deprivation and a blue pallor. Having treated many such patients in her work in Hopkins's Harriet Lane Home, Taussig was desperate to find a surgical cure. According to the accounts in Thomas's 1985 autobiography and in a 1967 interview with medical historian Peter Olch, Taussig suggested only that it might be possible to "reconnect the pipes" in some way to increase the level of blood flow to the lungs but did not suggest how this could be accomplished. Blalock and Thomas realized immediately that the answer lay in a procedure they had perfected for a different purpose in their Vanderbilt work, involving the anastomosis, or joining, of the subclavian to the pulmonary artery, which had the effect of increasing blood flow to the lungs.

Thomas was charged with the task of first creating a blue baby-like condition in a dog, and then correcting the condition by means of the pulmonary-to-subclavian anastomosis. Among the dogs on whom Thomas operated was one named Anna, who became the first long-term survivor of the operation and the only animal to have her portrait hung on the walls of Johns Hopkins. In nearly two years of laboratory work, involving some 200 dogs, Thomas was ultimately able to replicate only two of the four cardiac anomalies involved in Tetralogy of Fallot. He did demonstrate that the corrective procedure was not lethal, thus persuading Blalock that the operation could be safely attempted on a human patient. Even though Thomas knew he was not allowed to operate on patients at that time, he still followed Blalock's rules and assisted him during surgery.