Word: ventricular
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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...
...been a nurse for 11 years, and was a cardiac nurse at a San Diego hospital the night a technician allowed a patient who had just suffered a heart attack to get out of bed and smoke a cigarette. "All of a sudden the patient's heart monitor showed ventricular fibrillation, a life-threatening condition in which you can die within minutes," says Kranstover. "I rushed in to resuscitate him. He almost didn't make...
...Food and Drug Administration has approved the first commercial implantable blood pump to keep patients alive while they await heart transplants. Called the HeartMate implantable pneumatic left-ventricular assist system, the ashtray-sized device boosts the heart's main pumping chamber while the natural heart continues to perform other functions. Only 2,000 donor hearts become available each year, while more than 15,000 people may need transplants...
Each year about 400,000 people in the U.S. die of sudden cardiac death. Kirby said most of these deaths are suspected of being caused by ventricular fibrillation, the most fatal form of irregular heart rhythm, or arrhythmia...
...pigs were chosen because their hearts "are similar to those of humans," Kirby said. Models of the pigs' physiological response to stress have shown that the animals under stress have higher levels of norepinephrine than their counterparts in control groups. The pigs subjected to stress even develop ventricular fibrillation...