Word: pumps
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Dates: during 1990-1999
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...believe these patients' hearts were impaired either by damage resulting from a heart attack or by a viral infection. When thus weakened, the heart tries to compensate by stretching its muscles to help it beat. But as the heart's muscular left ventricle expands, it becomes less efficient at pumping blood through the body. Patients in late-stage heart failure pump as little as 15% of the blood that enters the heart back into the body, compared with 65% to 70% for those with a healthy heart. Patients' symptoms include general feelings of weakness and shortness of breath...
McCarthy has been more cautious than Batista and more research oriented. He picks only patients who are healthy enough to be on the transplant list, so that if the procedure does not work they can be put on a left-ventricular assist device, or artificial pump, until a suitable donor can be found. "We've had a 72% success rate with the procedure," says McCarthy. "If you look at all the people who die just waiting for a heart transplant, those odds are pretty good...
...brought a level of scientific professionalism to Batista's procedure. To be sure, the greatest benefit of U.S. hospitals is the state-of-the-art postoperative care. American doctors also offer a safety net for patients by placing them on a left-ventricular assist device that helps the heart pump blood into the body if the procedure fails. In addition, McCarthy has somewhat changed the procedure. Where Batista does his work on a beating heart, McCarthy stops the heart so he can make cleaner cuts (a common practice in open-heart surgery in the U.S.). Of greatest benefit is that...
...Nino generally peaks around December, which is why Peruvian fishermen long ago gave the Christmastime weather visitor a name that in Spanish means "Christ Child." If the warming trend continues, scientists say, the incipient El Nino could pump so much heat into the ocean that average sea-surface temperatures might rise 3.5[degrees]C, or 7[degrees]F--and if this happens, the effects would be felt far into the new year. Among the disasters that would be likely to result are landslides, flash floods, droughts and crop failures. Ecuadorian cocoa producers estimate that the current El Nino could lower...
...subsequent battle for incoming air waged by the different engineering factions. The engine guys needed the air to cool their oil and transmission fluids, the fuel folks wanted it to keep the alternator from overheating, and--of course--the climate people had to have enough air to pump into the interior. They could solve the whole problem by making the grill larger, but that would require a less sleek front-end, and no one wanted that...