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First Self ContainedHeart Implanted
？？A patient on the brink ofdeath has received the world's first self-contained artificial heart-a bat-tery powered device about the size of a softball that runs without the need forwires, tubes or hoses sticking out of the chest.？？？？
？？ Two surgeons from the University of Louisvilleimplanted the titanium and plastic pump during a seven-hour operation at JewishHospital Monday. The hospital said the patient was "awake andre-sponsive" Tuesday and resting comfortably. It refused to releasepersonal details.
？？ The patient had been expectedto die within a month without the operation, and doctors said they expected theartificial heart to extend the person's life by only a month But the device isconsidered a major step toward improving the patient's quality of life.？？
？？ The new pump, called AbioCor, is also a technological leap from the mechanical hearts used in the 1980s,which were attached by wires and tubes to bulky machinery outside the body. Themost fa- mous of those, the Jarvic-7, used air as a pumping device and wasattached to an apparatus about the size of a washing machine.？？
？？ "I think it'spotentially a major step forward in the artificial heart development,"said Dr. David Faxon, president of the American Heart Association. However, hesaid the dream of an implantable, permanent artificial heart is not yet areality: "This is obviously an experimental device whose long-term successhas to be demonstrated. " Only about half of the 4, 200 Americans on awaiting list for donor hearts receivedthem last year, and most of the rest died:？？
？？ Some doctors, includingRobert Higgins, chairman of cardiology at the Medical Colle？？ge of Virgin-ia in Richmond, said artificial hearts are unlikely to replacedonor hearts.
？？ "A donor heart in a goodtransplant can last 15 t0 30 years, " he said. "It's going to be hardto re-place that with a machine. "
？？ The Abil Cor has a 2-poundpumping unit, and electronic controls that adjust the pumping？？ speed based onthe body's needs. It is powered by a small battery pack worn outside the bodythat transmits current through the skin.
The pump of the first implanted self-contained heart was made of titanium andplastic？？？？？？？？？？？？
Ulcers are wounds in thestomach that are similar to small cuts or tears. These wounds can harm the tis-sue in the stomach, the pipe that carries the food to the stomach or parts ofthe small intestines. Fluids in the stomach then increase the pain of an ulcer.How does a person know he or she has an ulcer？ Doctors say most people withulcers feel a buming pain in their chest or stomach. This pain often is calledheart bunx It usually happens before eating or during the night. It causes somepeople to lose their desire to eat, or they are unable to keep food in theirstomachs. Doctors believed that ulcers were caused by unusualfy strong stomachfluids, which damaged stomach tissue. Now they have discovered that most ulcersare caused by a bacterial organism called Hillico Bactor Pilorie or HPillorie.HPillorie bacteria are what make stomach produce extra stomach fluid Doctorsfound that they can kill the bacteria with medicines called antibiotics. Healthexperts say the discovery of a cure for ulcers can save thousands of millionsof dollars in medical costs. They also believe curing ulcers will re- duce thenumber of people who develop stomach 'cancer. The number of people with stomachcancer is very high inJapan,Southeast Asia and parts of Africa.
Doctors say a person is more likely to getan ulcer if his or her family has had one. In fact a person with the familyhistory of ulcers is three times more likely to get one than other people.There are ways people can protect themselves from developing an ulcer. Doctorssay it is more important to reduce the amount of strong fluids in the stomach.To do this, doctors say, people should not smoke cigarettes or drink alcohol.And they say people should reduce tension in their lives.
In the past, doctors could not do anything about stomach ulcers
？？This essay talks about DNA fingerprinting concerning the following aspects EXCEPT________？？
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