NEW YORK (Reuters Health) - Hooking seriously-ill children to a pump that assists the heart helps them live longer than those hooked to a heart-lung machine while they await a heart transplant, doctors report in a new study. "The device did well; more than 80% made it to transplant," Dr. Daphne Hsu, chief of pediatric cardiology at the Children's Hospital at Montefiore Medical Center in New York ...