Organs for transplantation are usually obtained from living genetic re
latives or from heart-beating cadavers. Unfortunately, these sources h
ave so far been unable to keep up with demand. As a result, there is a
large and steadily increasing number of potential recipients awaiting
transplantation, some of whom will die before an organ can be found.
In an attempt to rectify this tragic situation, several solutions have
been proposed. This review will consider proposals designed to increa
se the availability of human organs without resorting to commercialism
. These include expanding the use of living donors by: 1) encouraging
donations by genetic relatives; 2) allowing volunteers a greater voice
in determining their own suitability; 3) encouraging the use of emoti
onally related individuals and accepting altruistic strangers; and 4)
considering motivated identical twin miners and older adolescents as d
onors, Suggestions for increasing the pool of cadaveric donors include
: 1) overcoming the family consent barrier by presuming consent, manda
ting completion of binding advanced directives, or by eliminating the
need for consent entirely; 2) reconsidering non-heart-beating donors;
3) elective ventilation for organ donation; and 4) accepting organs fr
om anencephalic infants before brain death occurs. All of these propos
als raise concerns which are discussed. Those approaches considered to
be ethically acceptable and to hold promise for success should be vig
orously pursued, beginning with carefully designed pilot studies. Hope
fully, such an approach will eventually increase the number of organs
available for patients sufferung from end-stage organ disease.