Today marks a milestone in the continuing quest by cardiovascular researchers and physicians at the University of Minnesota to conquer heart disease.
Fifty-three years ago, the first successful battery-operated pacemaker was developed by Earl Bakken and was surgically implanted by the pioneering University of Minnesota heart surgeon C. Walton Lillehei.
Lillehei had lost patients because their pacemakers required electricity. Upon his request, Bakken built a transistorized pacemaker.
Lillehei tested it first in a dog and, the next day, implanted it in a patient. From this seminal work, two great things happened: For patients with heart disease, pacemakers (now wafer-sized) have become a common therapy, with more than 600,000 implanted annually.
And for Minnesota, Medtronic (a $15 billion company) was launched. Manny Villafana was the first international sales administrator of Medtronic and went on to found St. Jude Medical (a $5 billion company) and five other successful medical device companies in the state.
It was at the University of Minnesota where the first St. Jude Medical heart valve was implanted in a patient in 1977.
In addition to the development of the pacemaker, other firsts in the history of cardiovascular innovations and patient care at the U have included the founding of the Variety Club Heart Hospital (the first hospital exclusively for heart patients in the United States) in 1951; the world's first successful open heart surgery, and, 56 years ago, the development of the world's first successful heart-lung machine, the fundamentals of which are used in more than a million surgeries annually.
It was also nearly 60 years ago that University of Minnesota scientists -- Dr. Ancel Keys along with Drs. Francisco Grande and Joseph Anderson -- defined the relationship between dietary fat and serum cholesterol, which linked cholesterol to heart disease.