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The success rates of transplant surgery have improved
remarkably, but growing shortages exist in the supply of organs and
tissues available for transplantation. Many Americans who need transplants
cannot get them because of these shortages. The result: some of these
people die while waiting for that "Gift of Life."
Each year, the National Kidney Foundation develops
special public education programs aimed at increasing public awareness of
the need for organ and tissue donation. Learning more about organ and
tissue donation will help every American to make an informed decision
about this important issue. Here are some facts everyone should know:
- More than 60,000 U.S.
patients are currently waiting for an organ transplant; more than
2,000 new patients are added to the waiting list each month.
- Every day, 10 to 11 people
die while waiting for a transplant of a vital organ, such as a heart,
liver, kidney, pancreas, lung or bone marrow.
- Because of the lack of
available donors in this country, 1,998 kidney patients, 1,131 liver
patients, 773 heart patients and 409 lung patients died last year
while waiting for life-saving organ transplants.
- About 10 percent of the
patients currently waiting for liver transplants are young people
under 18 years of age.
- Acceptable organ donors
can range in age from newborn to 65 years or more.
- People who are 65 years of
age or older may be acceptable donors, particularly of corneas, skin,
bone and for total body donation.
- An estimated 10,000 to
14,000 people who die each year meet the criteria for organ donation,
but less than half of that number become actual organ donors.
- Vital organs may be
recovered and transported thousands of miles to a transplant center
for transplantation. This is due, in part, to advances in preservation
techniques. Following are the approximate preservation times for a
variety of organs and tissues.
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Kidney
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up to 72 hours
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Liver
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up to 18 hours
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Heart
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up to 5 hours
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Heart/Lung
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up to 5 hours
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Pancreas
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up to 20 hours
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Corneas
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up to 10 days
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Bone Marrow
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varies by individual program
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Skin
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5 years or more
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Bone
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5 years or more
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Heart Valves
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5 years or more
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- Donor organs are matched
to waiting recipients by a national computer registry, called the
National Organ Procurement and Transplantation Network (OPTN). This
computer registry is operated by an organization known as the United
Network for Organ Sharing (UNOS), which is located in Richmond,
Virginia.
- Currently there are 54
organ procurement organizations (OPOs) across the country, which
provide organ procurement services to some 275 transplant centers.
- By federal mandate, all
states must have some form of "Required Request"
legislation, which requires hospitals within the state to set up a
protocol for offering the next-of-kin of someone who has died the
option of donating the organs and tissues of the deceased.
- By signing a Uniform Donor
Card, an individual indicates his or her wish to be a donor. However,
at the time of death, the person's next-of-kin will still be asked to
sign a consent form for donation. It is important for people who wish
to be organ and tissue donors to tell their family about this decision
so that their wishes will be honored at the time of death. It is
estimated that about 35 percent of potential donors never become
donors because family members refuse to give consent.
- All costs related to the
donation of organs and tissues are paid for by the donor program. A
family who receives a bill by mistake should contact the hospital or
procurement agency immediately.
- There were 5,473 cadaveric
donors in the U.S. in 1997, which represented a small increase over
the total of 5,416 in 1996. Living donors increased from 3,524 in 1996
to 3,676 in 1997.
- Donor organs and tissues
are removed surgically, and the donor's body is closed, as in any
surgery. There are no outward signs of organ donation and open casket
funerals are still possible.
- Acceptable organ donors
are those who are "brain dead" (whose brain function has
ceased permanently) but whose heart and lungs continue to function
with the use of artificial life support. Brain dead is a legal
definition of death.
- Organ transplant
recipients are selected on the basis of medical urgency, as well as
compatibility of body size and blood chemistries, and not race, sex or
creed.
- Advances in surgical
technique and organ preservation and the development of more effective
drugs to prevent rejection have improved the success rates of all
types of organ and tissue transplants.
- About 87 percent of the
kidneys transplanted from cadavers (persons who died recently) are
still functioning well at one year after surgery. The results are even
better for kidneys transplanted from living donors. One year after
surgery, 93 percent of these kidneys were still functioning well.
- Following are one-year
patient and organ graft survival rates:
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Organ
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Patient Survival Rate
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Graft Survival Rate
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Kidney (cadaveric)
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94.7%
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86.6%
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Kidney (live donor)
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97.9%
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93.3%
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Pancreas
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93.2%
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79.6%
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Liver
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87.0%
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79.1%
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Heart
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85.1%
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84.5%
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Heart/Lung
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74.8%
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74.1%
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Lung
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77.3%
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76.1%
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Intestine
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69.6%
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59.4%
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- Following is a comparison
of the numbers of organ transplants done in 1997 and the numbers of
individuals who remained on the national waiting list as of June 1998.
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Organ
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Number
of Transplants
in 1997
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Number
of Registrants on Waiting List*
(as of June 12, 1998)
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Kidney
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11,349
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39,652
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Kidney/Pancreas
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841
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1,727
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Pancreas
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215
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390
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Liver
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4,159
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10,750
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Heart
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2,284
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4,134
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Heart/Lung
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62
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228
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Lung
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940
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2,917
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Intestine
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66
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88
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Total:
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19,916
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59,886
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- *Due to multiple listings, the number of waiting
list registrants exceeds the actual number of individuals waiting for
organ transplants.
- Of the single kidney
transplants performed in 1997, 3,579 were from living donors and 7,770
were from cadaveric donors. Another 841 kidneys were transplanted in
combination with pancreas transplants.
- An estimated 50 bone
marrow transplants are performed each month in the U.S. Marrow is
collected from a pelvic bone using a special needle while the
volunteer donor is under anesthesia. The majority of bone marrow
transplants are done for leukemia.
- In 1997, there were 35,209
corneal transplants done in the U.S. The number of Americans on
waiting lists for corneas averages as high as 5,000 at any given time.
Corneal transplantation results in improved vision in nearly 95
percent of those who undergo the procedure because of corneal
disorders. Corneas are acceptable for donation regardless of
abnormalities in vision.
- Virtually all
religious denominations approve of organ and tissue donation as
representing the highest humanitarian ideals and the ultimate
charitable act.
Data Sources: June
1998
American Association of Tissue Banks
Eye Bank Association of America
National Marrow Donor Program
National Kidney Foundation, Inc.
UNOS Scientific Registry
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