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categories: ["bodies", "society"]categories: ["bodies", "society"]tags: ["transplantation", "health policy", "donation", "allocation", "bioethics", "kidney"]tags: ["transplantation", "health policy", "donation", "allocation", "bioethics", "kidney"]summary: "The persistent gap between the number of people who need a transplant and the number of usable donated organs, which drives most work on engineered and animal-derived replacements."summary: "The persistent gap between the number of people who need a transplant and the number of usable donated organs, which drives most work on engineered and animal-derived replacements."updated: "2026-07-27"updated: "2026-10-29"issues: ["Waiting-list size, the daily death figure and the 2023 transplant record are attributed to federal agencies but uncited.", "The claim that Iran eliminated its kidney waiting list needs a source."]issues: ["Waiting-list size, the daily death figure and the 2023 transplant record are attributed to federal agencies but uncited.", "The claim that Iran eliminated its kidney waiting list needs a source."]------ lines 16–22 → 16–222 unchanged lines not shown
"caption": "Health system problem", "caption": "Health system problem", "rows": [ "rows": [ { "label": "US waiting list", "value": "Over 100,000 candidates" }, { "label": "US waiting list", "value": "Over 100,000 candidates" }, { "label": "Largest component", "value": "Kidney, about 85–90%" }, { "label": "Largest component", "value": "Kidney, about 85-90%" }, { "label": "US deaths on the list", "value": "About 17 per day" }, { "label": "US deaths on the list", "value": "About 17 per day" }, { "label": "Deaths permitting donation", "value": "A small percentage" }, { "label": "Deaths permitting donation", "value": "A small percentage" }, { "label": "Highest national donation rate", "value": "Spain" }, { "label": "Highest national donation rate", "value": "Spain" },lines 46–52 → 46–5223 unchanged lines not shown
Deceased organ donation depends on a rare mode of death. Transplantable organs require perfusion until recovery, which in practice means the donor died in an intensive care unit, either after a determination of death by neurological criteria while a ventilator maintained circulation, or after planned withdrawal of life support with rapid recovery afterwards. Only a small percentage of all deaths occur in circumstances that permit either. Deaths at home, in the community, or after prolonged illness almost never yield organs.Deceased organ donation depends on a rare mode of death. Transplantable organs require perfusion until recovery, which in practice means the donor died in an intensive care unit, either after a determination of death by neurological criteria while a ventilator maintained circulation, or after planned withdrawal of life support with rapid recovery afterwards. Only a small percentage of all deaths occur in circumstances that permit either. Deaths at home, in the community, or after prolonged illness almost never yield organs. This is what distinguishes organs from blood, the other donated tissue: a healthy adult can give blood repeatedly, which is why the response to blood scarcity has been recruitment and, more recently, the manufactured substitutes discussed in [[artificial-blood]], while the response to organ scarcity cannot be either.Blood, the other donated tissue, differs on exactly this point: a healthy adult can give blood repeatedly. The response to blood scarcity has therefore been recruitment and, more recently, the manufactured substitutes discussed in [[artificial-blood]]; neither response is open to organ scarcity. That biological ceiling means consent rates, however improved, operate on a small denominator. Even a country converting every eligible family to donation would not produce enough kidneys to clear its dialysis population, which is why living donation and non-human sources matter.That biological ceiling means consent rates, however improved, operate on a small denominator. Even a country converting every eligible family to donation would not produce enough kidneys to clear its dialysis population, which is why living donation and non-human sources matter. lines 60–69 → 60–697 unchanged lines not shown
**Allocation.** How organs are ranked among candidates is a distributional question with no neutral answer: weighting medical urgency, expected years of graft survival, waiting time, and geography produce different winners. Continuous distribution frameworks that replace hard geographic boundaries with weighted scores have been introduced for several organs in the United States. Oversight of the American system itself was restructured by 2023 legislation that ended the single-contractor model under which one organisation had run the national network since the 1980s.**Allocation.** How organs are ranked among candidates is a distributional question with no neutral answer: weighting medical urgency, expected years of graft survival, waiting time, and geography produce different winners. Continuous distribution frameworks that replace hard geographic boundaries with weighted scores have been introduced for several organs in the United States. Oversight of the American system itself was restructured by 2023 legislation that ended the single-contractor model under which one organisation had run the national network since the 1980s. **Incentives.** United States law prohibits transfer of organs for valuable consideration, and most countries have similar bans. Reform proposals separate removing disincentives — reimbursing lost wages, travel and childcare for living donors, which is now permitted in the United States — from paying donors, which is not. Iran operates the only legal regulated market in living kidney donation and reports having eliminated its waiting list; critics point to evidence that donors are disproportionately poor and that follow-up care is inadequate. The Declaration of Istanbul, adopted in 2008 and revised since, sets the international position against organ trafficking and transplant tourism.**Incentives.** United States law prohibits transfer of organs for valuable consideration, and most countries have similar bans. Reform proposals separate removing disincentives, such as reimbursing lost wages, travel and childcare for living donors (now permitted in the United States), from paying donors, which is not permitted. Iran operates the only legal regulated market in living kidney donation and reports having eliminated its waiting list; critics point to evidence that donors are disproportionately poor and that follow-up care is inadequate. The Declaration of Istanbul, adopted in 2008 and revised since, sets the international position against organ trafficking and transplant tourism. > [!debate] Does paying for organs increase supply or corrupt it> [!debate] Does paying for organs increase supply or corrupt it> Proponents of regulated compensation argue that the current system already pays everyone in the operating room except the person supplying the organ, and that a legal market with price floors and follow-up care would be safer than the black market that exists anyway. Opponents argue that payment converts a gift relationship into a transaction that will fall hardest on the poor, that valuation of body parts is corrosive regardless of safeguards, and that the Iranian experience shows exploitation rather than a solution. The disagreement is about values, not primarily about elasticity of supply.> Proponents of regulated compensation argue that the current system already pays everyone in the operating room except the person supplying the organ, and that a legal market with price floors and follow-up care would be safer than the black market that exists anyway. Opponents argue that payment converts a gift relationship into a transaction that will fall hardest on the poor, that valuation of body parts is corrosive regardless of safeguards, and that the Iranian experience shows exploitation rather than a solution. The disagreement is primarily about values rather than about the elasticity of supply. ## Technology responses## Technology responses lines 81–87 → 81–8711 unchanged lines not shown
The furthest version of the demand-side argument belongs to the [[geroscience-hypothesis]]: organ failure is concentrated in later life, so an intervention that slowed the underlying aging process would reduce the incidence of every form of it at once. That claim is unproven in humans, and its economic version is set out in [[longevity-dividend]]. It also cuts the other way, since populations that live longer accumulate more organ failure in absolute terms unless morbidity compresses as well, the disputed proposition examined in [[compression-of-morbidity]]. A transplant system whose list stops growing because fewer organs fail would be a better outcome than one that grows its supply to match.The furthest version of the demand-side argument belongs to the [[geroscience-hypothesis]]: organ failure is concentrated in later life, so an intervention that slowed the underlying aging process would reduce the incidence of every form of it at once. That claim is unproven in humans, and its economic version is set out in [[longevity-dividend]]. It also cuts the other way, since populations that live longer accumulate more organ failure in absolute terms unless morbidity compresses as well, the disputed proposition examined in [[compression-of-morbidity]]. A transplant system whose list stops growing because fewer organs fail would be a better outcome than one that grows its supply to match. Whether that happens is the open question. Every previous expansion of supply — expanded criteria donors, donation after circulatory death, machine perfusion — has been absorbed by increased listing rather than a shorter list, which is what makes the shortage structural rather than a temporary deficit, and what keeps [[access-and-inequality]] central to any discussion of who receives a manufactured organ if one ever arrives.Whether that happens is the open question. Every previous expansion of supply (expanded criteria donors, donation after circulatory death, machine perfusion) has been absorbed by increased listing rather than a shorter list. That pattern makes the shortage structural rather than a temporary deficit, and it keeps [[access-and-inequality]] central to any discussion of who receives a manufactured organ if one ever arrives. ## See also## See also removed, struck through added, underlinedLine numbers count the serialised markdown of each revision, frontmatter included.
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