Since not enough livers from cadavers are available, living donors have stepped up and filled the need. Here is an excerpt from the referenced article:
“The Rise in Living Donors
Just over a decade ago, this gift of life between two close friends would have been impossible. Partial organ transplants between adults were unheard of: People’s immune systems typically rejected organs from nonrelatives, and doctors, for the most part, considered such operations not only risky but unethical. But today, Michael could be the poster boy for a trend that’s changing the course of transplant medicine in the United States. There are more living donors today than deceased ones. And many of the living donors are unrelated to the patient in need; sometimes they don’t even know them.
“Illustrating the altruistic nature of family, friends and even strangers, living donation rates have steadily increased. This increase has helped bring awareness to the critical shortage of organs.” says Annie Moore, spokesperson for the United Network for Organ Sharing (UNOS), the nation’s organ clearinghouse that matches donors to recipients. Consider the numbers: There were 6,618 live donors in 2002, a 230% increase over 1989, according to UNOS. By comparison, there were 6187 deceased donors, people who have died, often in the prime of life in an accident. Living kidney donors now account for nearly 52% of all kidney donors and the number of living donor liver transplants has doubled since 1999, according to UNOS.
Clearly attitudes are changing. A survey in 2000 by the National Kidney Foundation showed that 90% of Americans say they would consider donating a kidney to a family member while alive. That same survey reported that one in four Americans would consider donating a kidney to a stranger. Indeed, UNOS reports that living donors unrelated to the patients increased tenfold between 1992 and 2001.”
To read the entire article see:
http://men.webmd.com/features/between-friends-living-donors