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- Γ
- ╒ ?««Death of a Gallant Pioneer
-
- April 4, 1983
-
- Barney Clark: 1921-1983
-
- No one could doubt the wisdom of the choice. The dentists from Des
- Moines, Wash., my have been in failing health, but it was clear from
- the moment he set foot in the University of Utah Medical Center that
- Barney Clark was a dauntless spirit. "A rugged old Rocky Mountain
- sagebrush. Tough. Eager for life." That was how Dr. Chase Peterson,
- a university vice president, described the man who was to make medical
- history. Those qualities, together with his obviously urgent need,
- convinced the university selection committee that Clark should be the
- world's first human to receive a permanent artificial heart. "He was
- a man worth waiting for," said Committee Member Peg Miller. Those
- same traits enabled Clark to endure the arduous operation on Dec. 1
- and to struggle for 112 days through the perilous and uncharted
- territory of life with a plastic heart.
-
- Last week the long struggle ended. Beset by kidney failure, chronic
- respiratory problems, inflammation of the colon and loss of blood
- pressure, Clark, 62 died quietly. The official cause of death:
- "circulatory collapse due to multiorgan system failure." The heart
- itself was in good working order at his death, having beat steadfastly
- nearly 13 million times. In the final days, Clark's doctors debated
- what steps they would take to preserve the patient's life: whether,
- for instance, it would be medically and ethically appropriate to try
- kidney dialysis on someone so ill. In the end, however, Clark's rapid
- deterioration obviated such questions. Said Clark's surgeon, William
- DeBries: "It was essentially the death of the entire being except for
- the artificial heart." Shortly after 10 p.m. on Wednesday, having
- consulted with Clark's wife Una Loy, DeBries said, "This courageous
- man's heart was turned off."
-
- Clark was known for courage and fortitude throughout his life. Just
- twelve when his father died, he sold hot dogs and did odd jobs to help
- pay the family mortgage in Provo, Utah. Later he put himself through
- Brigham Young University and the University of Washington dental
- school. Father of three, the strapping 6-ft. 2-in. Clark prospered in
- his Seattle practice and, before his heart began to weaken six years
- ago, honed his golf handicap to six. "I've done everything I wanted
- to do in life," he told Peg Miller. "Now if I can make a
- contribution, my life will count for something." If that meant dying
- on the operating table, he was prepared. Shortly before surgery,
- Clark reached for the hand of Una Loy, the high school sweetheart he
- had married 39 years earlier, and said, "Honey in case I don't see you
- again, I just want you to know you've been a darned good wife."
-
- There were many moments before and during the operation when it looked
- as though Clark would not see his wife again. He was in then final
- stages of cardiomyopathy, a progressive deterioration of the heart
- muscle. Clark's skin appeared blue from lack of oxygen, fluid was
- collecting in his vital organs, and his ravaged heart could pump only
- one liter of blood a minute, about one-seventh the normal rate. When
- Clark's heart started fluttering abnormally a day before the
- implantation was scheduled, DeBries decided the operation could not
- wait. His patient, he said, "probably would have been dead by
- midnight."
-
- The surgery was fraught with danger. Years of cortisone therapy,
- DeVries pointed out, had made the fabric of Clark's heart so delicate
- that it tore "like tissue paper" during the operation. When the team,
- working to a recording of Ravel's Bolero, finally succeeded in
- replacing the organ with the mechanical device said DeVries, "it was a
- spiritual experience for everyone in the room." But the new heart
- failed to pump properly, and standby unit had to be substituted.
- Finally, after 7 1/2 hr., Clark's heart output was normal, he had what
- was described a "the blood pressure of an 18-year-old and his bluish
- skin was beginning to blush pink. Still, DeVries warned, "there are
- many more hurdles ahead."
-
- Indeed there were, including a 2 1/2 hr. episode of convulsions one
- week after surgery, gushing nosebleeds a month later and the failure
- of a valve in the left half of the heart, which necessitated
- replacement of the entire section. In all, Clark was to make three
- trips back to surgery to correct various problems. In addition, he
- suffered spells of confusion for three months after the seizures.
- During this period he sometimes imagined that he was still practicing
- dentistry in Seattle; at other times he was lucid enough to complain,
- "My mind is shot." But Clark improved. By the end of February his
- confusion had disappeared, and he was able to pedal a stationary
- bicycle for a few minutes at a time. Only his lungs, weakened by
- years of poor circulation, slowed his recovery.
-
- Clark was sustained by the work of a remarkable team. DeVries, 39, a
- lean, 6-ft. 5-in. former high jumper, is refreshingly indifferent to
- his sudden celebrity. Says he: "You lose credibility if you're too
- well known." A father of seven, he sleeps only four or five hours a
- night to make time for his family and the 16-hr. workday he favors.
- Typically, DeVries was standing vigil at Clark's side when his patient
- died.
-
- The equally dedicated inventor of the device, Dr. Robert Jarvik, 36,
- was also present. The son of a doctor, Jarvik designed his first
- medical invention, a surgical stapler, while still in high school.
- His interest in the heart was prompted by his father's battle with
- cardiac disease. A spare-time sculptor, Jarvik was able to combine
- his artistic and medical interests as a design engineer at Utah's
- artificial-organ program beginning in 1971; he earned his medical
- degree there in 1976.
-
- The man who brought Jarvik and DeVries together was Dutch-born Surgeon
- and Medical Engineer William Kolff, 72, who calls himself "the oldest
- artificial organist." The founder of Utah's artificial organ program
- got his start in the field by creating the first artificial kidney, a
- crude dialysis machine he pieced together from cellophane and other
- simple materials he found in Nazi-occupied Holland in the early 1940s.
- He designed his first artificial heart in 1957 when he was at the
- Cleveland Clinic, It sustained a dog for 1 1/2 hr.
-
- The heart that Barney Clark received thus represented more than a
- quarter of a century of research. Like Kolff's original device, it is
- powered by air, compressed by an external electric pump. Two 6-ft
- long air tubes, which emerge from beneath the rib cage, connect the
- heart to the pump and to emergency tanks of compressed air and other
- C, all of which are stored on a cart. Total weight of the awkward
- external system: 375 lbs.
-
- The cost of the heart: $9,050, plus $7,400 for the drive system.
- But Clark's equipment was donated by the manufacturer. Kolff Medical,
- Inc., and his doctors waived their fees. Had Clark done well enough
- to leave the hospital, he probably would have spent $2,700 to equip
- his home with ramps, well outlets for air and other fittings. Then
- there was the hospital bill. At the time of Clark's death, it
- exceeded a whopping $200,000, to be paid by donations and U.M.C. endowment
- funds.
-
- The cost, the 375-lb. encumbrance and the siege of postoperative
- ailments have all raised doubts about the use of artificial hearts.
- Said Dr. Michael DeBakey, the noted heart-transplant surgeon from
- Houston: "To be a success, the heart must restore the individual to
- normal life. If all it does it keep the patient alive, it has not
- succeeded." DeBakey and fellow Houston Transplant Expert Denton
- Cooley therefore favor transplants, which now offer recipients a 70%
- to 80% chance of surviving a year and a 42% chance of living five
- years. The best use of the mechanical heart, says Cooley, may be "to
- sustain a patient until a donor heart can be found."
-
- Clark's experience will undoubtedly help doctors build a better heart.
- "We have learned more in a few months with Clark than in the past nine
- years with animals," says Larry Hastings, a U.M.C. heart-pump
- technician. Jarvik has already designed a portable drive system the
- size of a camera bag that can run the Utah heart for twelve hours. It
- may be ready by 1985. Researchers at the Cleveland Clinic, as well as
- Jarvik, are now working on hearts with implantable motors. In ten
- years, the only external apparatus needed by an artificial-heart
- patient may be a 5-lb. battery pack.
-
- Yet even if these technological wonders occur, the costly artificial
- heart is sure to raise some difficult questions. "How much is life
- worth?" asks Dr. George Lundberg, editor of the Journal of the
- American Medical Association. "How much is one or more days of longer
- life worth? Is every life worth the same amount, and if not, why not?"
-
- According to a 1982 study published by the U.S. Office of Technology
- Assessment, as many as 66,000 Americans a year might qualify for an
- artificial heart, should it be approved for general use. Clearly,
- very few individuals could afford the device. The U.S. Government now
- spends $1.8 billion a year on Medicare assistance for the 60,000
- Americans who require kidney dialysis. If Medicare were to be
- extended to artificial-heart patients, that could mean an added burden
- to taxpayers of as much as $5.5 billion annually. Dr. Willard Gaylin,
- president of the Hastings Center, an institute just north of New York
- City for the study of biomedical ethics, points out that such patients
- might be a drain on the nation's health-care system throughout their
- lives. Says Gaylin: "We Americans like to think of ourselves as
- having an open-ended attitude toward health care, the more the better,
- but we've come to the point where we're running out of resources."
-
- A better course would be to develop ways of preventing such chronic
- ailments as cardiomyopathy and coronary artery disease. "If such work
- is not done," wrote Dr. Lewis Thomas, chancellor of the Memorial
- Sloan-Kettering Cancer Center, "We will be stuck forever with this
- insupportably expensive, ethically puzzling halfway technology." But
- preventing heart disease, as Thomas readily admits, is a long way off.
- Says Dr. William Friedewald, associate director of the National Heart,
- Lung and Blood Institute: "Of course, our goal is prevention, to have
- no Barney Clarks in the future, but right now that's pipe-dreaming."
-
- Though the Utah team is looking for a second artificial-heart
- candidate, it plans to proceed slowly. "The artificial heart today is
- at the stage that the transplants were when those operations began 16
- years ago." says Stanford Cardiologist Philip Oyer. "Then no one
- knew how a patient would do, and there was a lot of skepticism." An
- encouraging note is that the world's first mechanical-heart recipient
- survived nearly six times as long as the first heart-transplant
- patient, who lived only 19 days. And Clark, for all his suffering,
- said he would not hesitate to recommend the procedure to others "if
- the alternative is that they will die." Said the gallant pioneer:
- "It is worth it."
-
- --By Claudia Wa