. >> reporter: taking those drugs for the rest of her life is something lindsay porter has been able> my kidneys weighed about eight pounds a piece. all of my other organs were sort of being crushed together. >> reporter: her stem cell infusion allowed her to gradually wean off the drugs after only a year. she has been off them now for more than two years. it's a significant financial savings as well. the average transplants patients will spends up yards wa*rdz of $2,500 a month on pos postoperae medications. for craig and the nearly 100,000 people in the u.s. still on the kid any donation waiting list, it means a chance at a better quality of life at a greatly reduced cost. al jazerra, chicago. >>> and in some cases a person's body may reject the transplanted kid any that case they have to go back on die alice or have another transplants. >>> saving people who suffer from sudden cardiac arrest is a race against time where ever minute can be critical. there is an unusual new effort in seattle aimed at helping to improve the survival rate. alan explains. >> reporter: james seu a veryj