THE ARTIFICIAL HEART: On April 4, 1969, Dr. Denton Cooley implanted the first complete artificial heart in a human being. The device, developed at Cooley's Cullen Cardiovascular Laboratories in Houston, kept the patient, Haskell Karp, alive for sixty-four hours, until a suitable heart donor was found. Karp died thirty-two hours after receiving a new human heart, from pneumonia and renal failure, but his experience proved the viability of the artificial heart as a temporary measure. That first artificial heart is now in the Smithsonian Institution in Washington. Two Houston surgeons, Cooley and Michael E. DeBakey, pioneered heart transplant techniques. The development of the artificial heart dates to the early 1960s, when Domingo Liotta began research at DeBakey's Baylor laboratories in Houston. DeBakey and his team performed the first successful coronary artery bypass graft procedure in November 1964. Cooley and his associates at St. Luke's Hospital in Houston performed the first heart transplant in the U.S. in May 1968. In August of that year DeBakey and his team performed the first simultaneous multi-organ transplant. Despite such advances, cardiac transplantation initially had limited therapeutic success. DeBakey and Cooley reported that sixty of the first 100 heart transplant recipients died by the eighth day following surgery. Today, heart transplantation is no longer considered an experimental procedure; approximately 2,200 heart transplants were performed in 2000.
THE POLIO VACCINE: It is likely that polio has plagued humans for thousands of years. An Egyptian carving from around 1400 BCE depicts a young man with a leg deformity similar to one caused by polio. Polio circulated in human populations at low levels and appeared to be a relatively uncommon disease for most of the 1800s. There is still no cure for the disease. But at the peak of its devastation in the United States, Jonas Salk introduced a way to prevent it.
This infectious viral disease attacks the nerve cells and sometimes the central nervous system, often causing muscle wasting and paralysis and even death. Since 1900 there had been cycles of epidemics, each seeming to get stronger and more disastrous. The disease, whose early symptoms are like the flu, struck mostly children, although adults, including Franklin Roosevelt, caught it too.
On March 26, 1953, American medical researcher Dr. Jonas Salk announces on a national radio show that he has successfully tested a vaccine against poliomyelitis. Because of widespread vaccination, polio was eliminated from the Western Hemisphere in 1994.
The fight against polio, however, still continues today. (See video below)