Organ transplantation

Short description: Medical procedure

Organ transplant

Reenactment of the first heart transplant, performed in South Africa

MeSH| D016377

[edit on Wikidata]

Transplant surgeonOccupation

Names|

* Physician
* Surgeon

Occupation type

| Specialty

Activity sectors

| Medicine, Surgery
Description

Education required

* Doctor of Medicine (M.D.)
* Doctor of Osteopathic medicine (D.O.)
* Bachelor of Medicine, Bachelor of Surgery (M.B.B.S., MBChB)

Fields of
employment

| Hospitals, Clinics

Organ transplantation is a medical procedure in which an organ is removed from one body and placed in the body of a recipient, to replace a damaged or missing organ. The donor and recipient may be at the same location, or organs may be transported from a donor site to another location. Organs and tissues that are transplanted within the same person's body are called autografts. Transplants that are recently performed between two subjects of the same species are called allografts. Allografts can either be from a living or cadaveric source.

Organs that have been successfully transplanted include the heart, kidneys, liver, lungs, pancreas, intestine, thymus and uterus. Tissues include bones, tendons (both referred to as musculoskeletal grafts), corneae, skin, heart valves, nerves and veins. Worldwide, kidneys remain the most commonly transplanted organs, followed by liver and heart. Global analyses indicate that available transplants meet a minority of worldwide need, with the Transplant Observatory reporting substantial gaps between demand and supply and year-to-year increases in registered transplant activity in recent data releases.[1][2] J. Hartwell Harrison performed the first organ removal for transplant in 1954 as part of the first kidney transplant.[3] Corneae and musculoskeletal grafts are the most commonly transplanted tissues; these outnumber organ transplants by more than tenfold.[4]

Organ donors may be living individuals, or deceased due to either brain death or circulatory death. Tissues can be recovered from donors who have died from circulatory or brain death within 24 hours after cardiac arrest. Unlike organs, most tissues (with the exception of corneas) can be preserved and stored—also known as "banked"—for up to five years. Transplantation raises a number of bioethical issues, including the definition of death, when and how consent should be given for an organ to be transplanted, and payment for organs for transplantation.[5][6] Other ethical issues include transplantation tourism (medical tourism) and more broadly the socio-economic context in which organ procurement or transplantation may occur. A particular problem is organ trafficking.[7] There is also the ethical issue of not holding out false hope to patients.[8]

Transplantation medicine is one of the most challenging and complex areas of modern medicine. Some of the key areas for medical management are the problems of transplant rejection, during which the body has an immune response to the transplanted organ, possibly leading to transplant failure and the need to immediately remove the organ from the recipient. When possible, transplant rejection can be reduced through serotyping to determine the most appropriate donor-recipient match and through the use of immunosuppressant drugs.[9]

As of September 9, 2022, the United States reached one million cumulative transplants according to the Organ Procurement and Transplantation Network (OPTN), with kidneys being the most common globally.[10][11] Challenges include global shortages, with only 10-20% of needs met, and inequities in access.[12] Recent advances include xenotransplantation (eg, clinical trials and case reports of genetically modified porcine organs implanted into humans that have provided early safety and feasibility data and identified important infectious and immunologic risks), machine perfusion, and normothermic ex-vivo perfusion systems that have extended preservation intervals and improved graft assessment prior to transplant.[13][14]

## Contents

* 1 Types of transplant
* 1.1 Autograft
* 1.2 Allograft and allotransplantation
* 1.2.1 Isograft
* 1.3 Xenograft and xenotransplantation
* 1.4 Domino transplants
* 1.5 ABO-incompatible transplants
* 2 Organs and tissues transplanted
* 2.1 Eye
* 2.2 Chest
* 2.3 Abdomen
* 2.4 Tissues, cells and fluids
* 3 Indications for transplantation
* 4 Complications
* 4.1 Transplantation in obese individuals
* 4.2 Human herpesvirus 6 (HHV-6) reactivation
* 5 Types of donor
* 5.1 Living donor
* 5.2 Deceased donor
* 6 Allocation of organs
* 7 Reasons for donation and ethical issues
* 7.1 Living related donors
* 7.1.1 Paired exchange
* 7.2 Good Samaritan
* 7.3 Financial compensation
* 7.4 Forced donation
* 8 By region
* 9 Society and culture
* 9.1 Success rates
* 9.2 Comparative costs
* 9.3 Safety
* 9.4 Transplant laws
* 9.5 Ethical concerns
* 9.6 Artificial organ transplantation
* 10 Research
* 11 Negative effects of transplantation
* 12 See also
* 13 References
* 14 Further reading
* 15 External links

## Types of transplant

### Autograft

Main article: Medicine:Autotransplantation

Autografts are the transplant of tissue to the same person (e.g., kidney for nutcracker syndrome or ex vivo liver resection for tumors) to minimize rejection.[15][needs update] Sometimes this is done with surplus tissue, tissue that can regenerate, or tissues more desperately needed elsewhere (examples include skin grafts, vein extraction for CABG, etc.). Sometimes an autograft is done to remove the tissue and then treat it or the person before returning it[16] (examples include stem cell autograft and storing blood in advance of surgery). Autografts involve transplanting tissue within the same individual, such as skin for burns or veins for bypass surgery; rotationplasty relocates a foot/ankle to replace a knee in cancer cases.[17] No immunosuppression needed due to genetic identity.

### Allograft and allotransplantation

Main article: Biology:Allotransplantation

An allograft is a transplant of an organ or tissue between two genetically non-identical members of the same species. Most human tissue and organ transplants are allografts. Due to the genetic difference between the organ and the recipient, the recipient's immune system will identify the organ as foreign and attempt to destroy it, causing transplant rejection. The risk of transplant rejection can be estimated by measuring the panel-reactive antibody level.[18]

#### Isograft

An isograft is a subset of allograft in which organs or tissues are transplanted from a donor to a genetically identical recipient (such as an identical twin). Isografts are differentiated from other types of transplants because while they are anatomically identical to allografts, they do not trigger an immune response.[19]

### Xenograft and xenotransplantation

Main article: Unsolved:Xenotransplantation

A xenograft is a transplant of organs or tissue from one species to another. An example is porcine heart valve transplant, which is quite common and successful. Another example is attempted piscine–primate (fish to non-human primate) transplant of pancreatic islets. The latter research study was intended to pave the way for potential human use if successful. However, xenotransplantation is often an extremely dangerous type of transplant because of the increased risk of non-functional compatibility, rejection, and disease carried in the tissue. In the opposite direction, attempts are being made to devise a way to transplant human fetal hearts and kidneys into animals for future transplantation into human patients to address the shortage of donor organs.[20]

### Domino transplants

In people with cystic fibrosis (CF), where both lungs need to be replaced, it is a technically easier operation with a higher rate of success to replace both the heart and lungs of the recipient with those of the donor. As the recipient's original heart is usually healthy, it can then be transplanted into a second recipient in need of a heart transplant, thus making the person with CF a living heart donor.[21]

In a 2016 case at Stanford Medical Center, a complex set of transplant surgeries involved two patients and three surgical teams. The first patient, a woman with cystic fibrosis, required a heart-lung transplant due to the disease causing one lung to expand and the other to shrink, displacing her heart. Her heart was subsequently donated to a second patient—a woman with right ventricular dysplasia, a condition that caused a dangerously abnormal heart rhythm. The dual procedures also involved a third team responsible for retrieving the heart and lungs from a recently deceased donor. Both recipients recovered well and had the opportunity to meet six weeks after their simultaneous surgeries.[22]

Another example of this situation occurs with a special form of liver transplant in which the recipient has familial amyloid polyneuropathy, a disease where the liver slowly produces a protein that damages other organs. The recipient's liver can then be transplanted into an older person for whom the effects of the disease will not necessarily contribute significantly to mortality.[23]

This term also refers to a series of living donor transplants in which one donor donates to the highest recipient on the waiting list and the transplant center utilizes that donation to facilitate multiple transplants. These other transplants are otherwise impossible due to blood type or antibody barriers to transplantation. The "Good Samaritan" kidney is transplanted into one of the other recipients, whose donor in turn donates his or her kidney to an unrelated recipient. This method allows all organ recipients to get a transplant even if their living donor is not a match for them. This further benefits people below any of these recipients on waiting lists, as they move closer to the top of the list for a deceased-donor organ. Johns Hopkins Hospital in Baltimore and Northwestern University's Northwestern Memorial Hospital have received significant attention for pioneering transplants of this kind.[24][25] In February 2012, the last link in a record 60-person domino chain of 30 kidney transplants was completed.[26][27]

In May 2023, New York Presbyterian Morgan Stanley Children's Hospital performed the first domino heart transplantation in a baby, eventually saving two baby girls.[28]

### ABO-incompatible transplants

Main article: Medicine:ABO-incompatible transplantation

Because very young children (generally under 12 months, but often as old as 24 months[29]) do not have a well-developed immune system,[30] it is possible for them to receive organs from otherwise incompatible donors. This is known as ABO-incompatible (ABOi) transplantation. Graft survival and people's mortality are approximately the same between ABOi and ABO-compatible (ABOc) recipients.[31] While focus has been on infant heart transplants, the principles generally apply to other forms of solid organ transplantation.[29]

The most important factors are that the recipient not have produced isohemagglutinins, and that they have low levels of T cell-independent antigens.[30][32] United Network for Organ Sharing (UNOS) regulations allow for ABOi transplantation in children under two years of age if isohemagglutinin titers are 1:4 or below,[33][34] and if there is no matching ABOc recipient.[33][34][35] Studies have shown that the period under which a recipient may undergo ABOi transplantation may be prolonged by exposure to nonself A and B antigens.[36] Furthermore, should the recipient (for example, type B-positive with a type AB-positive graft) require eventual retransplantation, the recipient may receive a new organ of either blood type.[29][34]

Limited success has been achieved in ABO-incompatible heart transplants in adults,[37] though this requires that the adult recipients have low levels of anti-A or anti-B antibodies.[37] Renal transplantation is more successful, with similar long-term graft survival rates to ABOc transplants.[34]

## Organs and tissues transplanted

### Eye

* Eyeball (First successful transplantation of a non-functional eye was performed in 2024)[38]

### Chest

* Heart (deceased-donor only; porcine xenograft attempted)
* Lung (deceased-donor and living-related lung transplantation)
* Thymus
* Pulmonary artery: First successful main pulmonary artery transplantation to extend thymus cancer treatment possibility was performed in Switzerland at Ente Ospedaliero Cantonale in 2023[39][40]

### Abdomen

* Kidney (deceased-donor and living-donor; porcine xenograft attempted)
* Liver (deceased-donor, which enables donation of a whole liver; and living-donor, where each donor can provide up to 70% of a liver)
* Pancreas (deceased-donor only; a very severe type of diabetes ensues if a live person's entire pancreas is removed)
* Intestine (deceased-donor and living-donor; normally refers to the small intestine)
* Stomach (deceased-donor only)
* Uterus (deceased-donor only)[41][42]
* Testis[43] (deceased-donor and living-donor)
* Penis (deceased-donor only)

### Tissues, cells and fluids

* Hand (deceased-donor only), see first recipient Clint Hallam
* Cornea (deceased-donor only) see the ophthalmologist Eduard Zirm
* Skin, including face replant (autograft) and face transplant (extremely rare)
* Islets of Langerhans (pancreas islet cells) (deceased-donor and living-donor)
* Bone marrow or adult stem cell (living-donor and autograft)
* Blood transfusion, whole blood or fractionated blood products (living-donor and autograft)
* Blood vessels (autograft and deceased-donor)
* Heart valve (deceased-donor, living-donor and xenograft [porcine/bovine])
* Bone (deceased-donor and living-donor)

## Indications for transplantation

* Kidney transplantation is becoming increasingly common and is the preferred treatment for end-stage renal failure.[44]
* Liver transplantation is the only curative therapy for end-stage liver disease, and the liver is the second most frequently transplanted solid organ.[45]
* Pancreatic transplantation is a complex surgical procedure performed in patients with severe chronic diabetes, often in association with renal transplantation.[46]
* Heart transplantation is increasingly performed in patients with end-stage heart failure, most often related to ischemic and non-ischemic cardiomyopathies.[47]

## Complications

The main complications are procedural complications, infection, acute rejection, cardiac allograft vasculopathy and malignancy.[47]

Non-vascular and vascular complications can occur in the initial post-transplant phase and at later stages. Overall postoperative complications after kidney transplantation occur in approximately 12% to 25% of kidney transplant patients.[44]

Following transplantation, recipients undergo regular laboratory monitoring (eg, organ-specific function tests such as serum creatinine for kidney or liver function tests for liver, and immunosuppressant trough levels), imaging (eg, ultrasound/Doppler studies for transplanted kidneys and vascular anastomoses), and tissue biopsy when indicated to evaluate graft function and detect rejection.[48][49]

### Transplantation in obese individuals

Until recently, people with obesity were not considered appropriate candidate donors for renal transplantation. In 2009, the physicians at the University of Illinois Medical Center performed the first robotic renal transplantation in an obese recipient and have continued to transplant people with a body mass index over 35 using robotic surgery. As of January 2014, over 100 people who would otherwise have been turned down because of their weight have successfully been transplanted.[50][51]

### Human herpesvirus 6 (HHV-6) reactivation

Human herpesvirus 6 (HHV-6) reactivation emerged as a notable concern in pediatric liver transplantation, potentially influencing both graft and recipient health. HHV-6, prevalent in a substantial portion of the population, can manifest in liver transplant recipients with inherited chromosomally integrated HHV-6 (iciHHV-6), predisposing them to heightened risks of complications such as graft-versus-host disease and allograft rejections. Recent case studies underscore the significance of HHV-6 reactivation, demonstrating its ability to infect liver grafts and impact recipient outcomes. Clinical management involves early detection, targeted antiviral therapy, and vigilant monitoring post-transplantation, with future research aimed at optimizing preventive measures and therapeutic interventions to mitigate the impact of HHV-6 reactivation on pediatric liver transplant outcomes.[52]

## Types of donor

Organ donors may be living or may have died of brain death or circulatory death. Most deceased donors are those who have been pronounced brain dead. Brain dead means the cessation of brain function, typically after receiving an injury (either traumatic or pathological) to the brain, or otherwise cutting off blood circulation to the brain (drowning, suffocation, etc.). Breathing is maintained via artificial sources, which, in turn, maintains heartbeat. Once brain death has been declared, the person can be considered for organ donation. Criteria for brain death vary. Because less than 3% of all deaths in the US are the result of brain death, the overwhelming majority of deaths are ineligible for organ donation, resulting in severe shortages. It is important to note currently that patients that have been pronounced brain dead are one of the most common and ideal donors, since often these donors are young and healthy, thus leading to high quality organs.[53]

In certain cases—particularly when an individual has suffered severe brain injury and is not expected to survive without artificial ventilation and mechanical support—organ donation after circulatory death (DCD) is possible. Regardless of any decision about donation, the individual's family may choose to withdraw life-sustaining support. When withdrawal of life-sustaining treatment is planned, and death is expected within an institutionally acceptable interval, some controlled DCD pathways allow withdrawal to occur in an operating room so that organ retrieval can proceed immediately after the legally required observation interval following circulatory arrest.[54] Protocols and the required no-touch observation period vary between jurisdictions and are described in national best-practice guidance.

Tissues may be recovered from donors who die of either brain or circulatory death. In general, tissues may be recovered from donors up to 24 hours past the cessation of heartbeat.[1] In contrast to organs, most tissues (with the exception of corneas) can be preserved and stored for up to five years, meaning they can be "banked." Also, more than 60 grafts may be obtained from a single tissue donor. Because of these three factors - the ability to recover from a non-heart-beating donor, the ability to bank tissue, and the number of grafts available from each donor - tissue transplants are much more common than organ transplants.[4] Industry and regulator estimates report that millions of tissue grafts are distributed and that over one million tissue transplants are performed in the United States annually; for example, American Association of Tissue Banks documentation and related federal filings reference distribution of several million allografts and estimate more than one million tissue transplants per year in the U.S.[55]

### Living donor

In living donors, the individual remains alive and donates a renewable tissue, cell, or fluid—such as blood or skin—or an organ or part of an organ where the remaining portion can regenerate or compensate for the loss. This primarily includes donations such as a single kidney, a portion of the liver, a lung lobe, or a segment of the small intestine. Advances in regenerative medicine may one day enable the creation of laboratory-grown organs using a person's own cells, either through stem cell technology or by harvesting healthy cells from failing organs.[56]

### Deceased donor

Deceased donors (formerly cadaveric) are people who have been declared brain-dead and whose organs are kept viable by ventilators or other mechanical mechanisms until they can be excised for transplantation. Apart from brainstem-dead donors, who have formed the majority of deceased donors for the last 20 years, there is increasing use of after-circulatory-death donors (formerly non-heart-beating donors) to increase the potential pool of donors as demand for transplants continues to grow.[57] Prior to the legal recognition of brain death in the 1980s, all deceased organ donors had died of circulatory death. These organs have inferior outcomes to organs from a brain-dead donor.[58] For instance, patients who underwent liver transplantation using donation-after-circulatory-death allografts have been shown to have significantly lower graft survival than those from donation-after-brain-death allografts due to biliary complications and primary nonfunction in liver transplantation.[59] However, given the scarcity of suitable organs and the number of people who die waiting, any potentially suitable organ must be considered. Jurisdictions with medically assisted suicide may co-ordinate organ donations from that source.[60]

## Allocation of organs

See also: Medicine:Organ procurement

In most countries there is a shortage of suitable organs for transplantation. Countries often have formal systems in place to manage the process of determining who is an organ donor and in what order organ recipients receive available organs.

The overwhelming majority of deceased-donor organs in the United States are allocated by federal contract to the Organ Procurement and Transplantation Network, held since it was created by the Organ Transplant Act of 1984, by the United Network for Organ Sharing, or UNOS. (UNOS does not handle donor cornea tissue; corneal donor tissue is usually handled by multiple eye banks with guidance from the Eye Bank Association of America (EBAA) and the Food and Drug Administration (FDA). Individual regional organ procurement organizations, all members of the Organ Procurement and Transplantation Network, are responsible for the identification of suitable donors and the collection of the donated organs. UNOS (the United Network for Organ Sharing) allocates organs according to methodologies deemed most equitable by experts in the field. Allocation criteria vary by organ type and are periodically revised. For instance, liver allocation is partly determined by the MELD (Model for End-Stage Liver Disease) score, an evidence-based measure derived from laboratory values that reflect the severity of a patient's liver disease.

The foundation for national organ policy was laid with the passage of the National Organ Transplant Act (NOTA) in 1984, which led to the creation of the Organ Procurement and Transplantation Network (OPTN). The OPTN maintains the national organ transplant registry and ensures fair and equitable distribution of organs. Additionally, the Scientific Registry of Transplant Recipients (SRTR) was established to support continuous research on transplant outcomes and recipient health.

In 2000, the Children's Health Act was enacted, mandating that NOTA account for the specific needs and considerations of pediatric patients in organ allocation decisions.

An example of "line jumping" occurred in 2003 at Duke University, when physicians attempted to correct a critical error in an initial transplant. A teenage girl received a heart-lung transplant with organs of an incompatible blood type. Following the mistake, she was given priority for a second transplant, despite being in such poor physical condition that she would not typically qualify as a viable candidate. The case raised ethical concerns about fairness in organ allocation and the influence of public and institutional pressure on transplant decisions.[61]

In an April 2008 article published in The Guardian, Steven Tsui, head of the transplant team at Papworth Hospital in the UK, addressed the ethical dilemma of managing patient expectations in heart transplantation. He explained, "Conventionally, we would say if people's life expectancy was a year or less, we would consider them a candidate for a heart transplant. But we also have to manage expectations. If we know that in an average year we will do 30 heart transplants, there is no point putting 60 people on our waiting list, because we know half of them will die, and it's not right to give them false hope." His remarks highlight the ethical balance between offering access to life-saving treatment and the responsibility to avoid unrealistic expectations in the face of limited organ availability."[8]

Directed or targeted donation—while experiencing a slight increase in popularity—remains relatively rare. In such cases, the family of a deceased donor (often in accordance with the donor's expressed wishes) requests that an organ be allocated to a specific individual, thereby bypassing the standard organ allocation system. In the United States, waiting times for organ transplants can vary significantly depending on the availability of organs across different UNOS regions. By contrast, in countries such as the United Kingdom, only medical criteria and a patient's position on the waiting list determine organ allocation, with no allowance for directed donation outside of immediate family or exceptional circumstances.

One of the more widely publicized cases of directed donation occurred in 1994 with the Chester and Patti Szuber transplant. This marked the first known instance in which a parent received a heart donated by their own child. Although accepting a heart from his recently deceased daughter was an incredibly difficult decision, the Szuber family agreed that Patti would have wanted her heart to be given to her father.[62][63]

Access to organ transplantation is one reason for the growth of medical tourism.

## Reasons for donation and ethical issues

### Living related donors

Living related donors donate to family members or friends in whom they have an emotional investment. The risk of surgery is offset by the psychological benefit of not losing someone related to them, or not seeing them suffer the ill effects of waiting on a list.

#### Paired exchange

Diagram of an exchange between otherwise incompatible pairs

A "paired-exchange" is a technique that matches willing living donors with compatible recipients using serotyping. For example, a spouse may be willing to donate a kidney to their partner, but cannot since there is a lack of a biological match. The willing spouse's kidney is donated to a matching recipient who also has an incompatible but willing spouse. The second donor must match the first recipient to complete the pair exchange. Typically, the surgeries are scheduled simultaneously in case one of the donors decides to back out, and the couples are kept anonymous from each other until after the transplant. Paired-donor exchange, led by work in the New England Program for Kidney Exchange as well as at Johns Hopkins University and the Ohio organ procurement organizations, may more efficiently allocate organs and lead to more transplants.

Paired exchange programs were popularized by the New England Journal of Medicine article "Ethics of a paired-kidney-exchange program" in 1997 by L.F. Ross.[64] It was also proposed by Felix T. Rapport[65] in 1986 as part of his initial proposals for live-donor transplants, "The case for a living emotionally related international kidney donor exchange registry" in Transplant Proceedings.[66] A paired exchange is the simplest case of a much larger exchange registry program where willing donors are matched with any number of compatible recipients.[67] Transplant exchange programs have been suggested as early as 1970: "A cooperative kidney typing and exchange program."[68]

The first pair exchange transplant in the US was in 2001 at Johns Hopkins Hospital.[69] The first complex multihospital kidney exchange involving 12 people was performed in February 2009 by The Johns Hopkins Hospital, Barnes-Jewish Hospital in St. Louis, and Integris Baptist Medical Center in Oklahoma City.[70] Another 12-person multihospital kidney exchange was performed four weeks later by Cooperman Barnabas Medical Center in Livingston, New Jersey, Newark Beth Israel Medical Center, and NewYork-Presbyterian Hospital.[71] Surgical teams led by Johns Hopkins continue to pioneer this field with more complex chains of exchange, such as an eight-way multihospital kidney exchange.[72] In December 2009, a 13-organ 13-recipient matched kidney exchange took place, coordinated through Georgetown University Hospital and Washington Hospital Center, Washington, DC.[73]

### Good Samaritan

The term "good Samaritan" or "altruistic" has been used to describe an organ donation by an individual who donates an organ to someone with whom the donor has no prior affiliation. Donating one's organs without the intention of personal gain; it is out of pure selflessness. On the other hand, the current allocation system does not assess a donor's motive, so altruistic donation is not a requirement.[74] Some people choose to do this out of a personal need to donate. Some donate to the next person on the list; others use some method of choosing a recipient based on criteria important to them. Websites are being developed that facilitate such donations. Over half of the members of the Jesus Christians, an Australian religious group, have donated kidneys in such a fashion.[75]

### Financial compensation

See also: Social:Organ theft, Organ trade, and Repugnancy costs

Monetary compensation for organ donors, in the form of reimbursement for out-of-pocket expenses, has been legalised in Australia;[76] however, it has been strictly limited to the case of a kidney transplant. Moreover, in Singapore, the country's government offers minimal reimbursement in the case of other forms of organ harvesting. Kidney disease organizations in both countries have expressed their support.[77][78]

In compensated donation, donors get money or other compensation in exchange for their organs. This practice is common in some parts of the world, whether legal or not, and is one of the many factors driving medical tourism.[79]

In the illegal black market, the donors may not get sufficient after-operation care,[80] the price of a kidney may be above $160,000,[81] middlemen take most of the money, the operation is more dangerous to both the donor and receiver, and the receiver often gets hepatitis or HIV.[82] In Iran's legal markets,[83] the price of a kidney varies from $2,000 to $4,000.[82][84][85]

An article by Gary Becker and Julio Elias, "Introducing Incentives in the market for Live and Cadaveric Organ Donations",[86] stated that a free market could help solve the problem of a scarcity in organ transplants. Their economic modeling was able to estimate the price tag for human kidneys ($15,000) and human livers ($32,000).

In the United States, the National Organ Transplant Act of 1984 made organ sales illegal. In the United Kingdom, the Human Organ Transplants Act 1989 first made organ sales illegal, and has been superseded by the Human Tissue Act 2004. In 2007, two major European conferences recommended against the sale of organs.[87] The recent emergence of websites and personal advertisements for organs among listed transplant candidates has intensified ethical debates surrounding organ sales, directed donation, "good Samaritan" donation, and current U.S. organ allocation policies. These developments have raised concerns about fairness, equity, and potential exploitation. However, bioethicist Jacob M. Appel has argued that public solicitation of organs through billboards and the internet may ultimately increase the overall supply of organs, potentially benefiting patients awaiting transplants.[88]

In an experimental survey, Elias, Lacetera, and Macis (2019) found that preferences regarding compensation for kidney donors are deeply rooted in moral considerations. Participants particularly opposed direct payments made by patients to donors, viewing such transactions as violations of fairness principles.[89]

Many countries adopt different approaches to organ donation, including the opt-out system, where individuals are presumed donors unless they explicitly decline. Public campaigns and advertisements are also widely used to encourage organ donation. Although such laws and initiatives exist in various countries, organ donation ultimately remains a personal choice and is not mandatory for individuals.

Two books—Kidney for Sale by Owner by Mark Cherry (Georgetown University Press, 2005) and Stakes and Kidneys: Why Markets in Human Body Parts are Morally Imperative by James Stacey Taylor (Ashgate Press, 2005)—advocate for the use of markets to increase the supply of organs available for transplantation. Similarly, in a 2004 journal article, economist Alex Tabarrok argues that permitting the sale of organs and eliminating organ donor waiting lists would increase supply, reduce costs, and lessen social anxiety surrounding organ markets.[90]

Iran has had a legal market for kidneys since 1988.[91] The donor is paid approximately US$1200 by the government and also usually receives additional funds from either the recipient or local charities.[84][92] The Economist[93] and the Ayn Rand Institute[94] approve and advocate a legal market elsewhere. They argued that if 0.06% of Americans between 19 and 65 were to sell one kidney, the national waiting list would disappear (which, the Economist wrote, happened in Iran). The Economist argued that donating kidneys is no more risky than surrogate motherhood, which can be done legally for pay in most countries.

In Pakistan, 40 percent to 50 percent of the residents of some villages have only one kidney because they have sold the other for a transplant into a wealthy person, probably from another country, said Dr. Farhat Moazam of Pakistan, at a World Health Organization conference. Pakistani donors are offered $2,500 for a kidney but receive only about half of that because middlemen take so much.[95] In Chennai, southern India, poor fishermen and their families sold kidneys after their livelihoods were destroyed by the Indian Ocean tsunami on 26 December 2004. About 100 people, mostly women, sold their kidneys for 40,000–60,000 rupees ($900–1,350).[96] Thilakavathy Agatheesh, 30, who sold a kidney in May 2005 for 40,000 rupees, said, "I used to earn some money selling fish, but now the post-surgery stomach cramps prevent me from going to work." Most kidney sellers say that selling their kidney was a mistake.[97]

In Cyprus in 2010, police closed a fertility clinic under charges of trafficking in human eggs. The Petra Clinic, as it was known locally, brought in women from Ukraine and Russia for egg harvesting and sold the genetic material to foreign fertility tourists.[98] This sort of reproductive trafficking violates laws in the European Union. In 2010, Scott Carney reported for the Pulitzer Center on Crisis Reporting, and the magazine Fast Company explored illicit fertility networks in Spain, the United States, and Israel.[99][100]

### Forced donation

Increasing concerns have been raised on the international level that certain authorities and governments may be forcibly harvesting organs from individuals considered undesirable, such as prisoners. The World Medical Association has stated that prisoners and other persons in custody are effectively unable to provide free and voluntary consent transparently, their organs must not be used for transplantation.[101][102][103]

According to former Chinese Deputy Minister of Health, Huang Jiefu, the practice of transplanting organs from executed prisoners is still occurring as of February 2017[update].[104][105] World Journal reported that Huang had admitted that approximately 95% of all organs used for transplantation are from executed prisoners.[105] The lack of a public organ donation program in China is used as a justification for this practice. In July 2006, the Kilgour-Matas report[106] stated, "the source of 41,500 transplants for the six-year period 2000 to 2005 is unexplained" and "we believe that there has been and continues today to be large-scale organ seizures from unwilling Falun Gong practitioners."[106] Investigative journalist Ethan Gutmann estimates 65,000 Falun Gong practitioners were killed for their organs from 2000 to 2008.[107][108] However, 2016 reports updated the death toll of the 15-year period since the persecution of Falun Gong began, putting the death toll at 150,000[109] to 1.5 million.[110] In December 2006, after failing to receive credible assurances from the Chinese government about allegations relating to Chinese prisoners, the two major organ transplant hospitals in Queensland, Australia, stopped transplantation training for Chinese surgeons and banned joint research programs into organ transplantation with China.[111]

In May 2008, two United Nations Special Rapporteurs reiterated their requests for "the Chinese government to fully explain the allegation of taking vital organs from Falun Gong practitioners and the source of organs for the sudden increase in organ transplants that has been going on in China since the year 2000."[112] People in other parts of the world are responding to this availability of organs, and a number of individuals (including US and Japanese citizens) have elected to travel to China or India as medical tourists to receive organ transplants which may have been sourced in what might be considered elsewhere to be unethical manner.[113][114][115][116][117]

## By region

Some estimates of the number of transplants performed in various regions of the world have been derived from the Global Burden of Disease Study.[118]

Distribution of solid organ transplantation activity, by region used in the Global Burden of Disease Study, 2006–2011[118] Transplantation of organs in different regions in 2000[119] | Kidney

(pmp*)

| Liver

(pmp)

| Heart

(pmp)

|
|
|

United States | 52  | 19  | 8
Europe | 27  | 10  | 4
Africa | 11  | 3.5  | 1
Asia | 3  | 0.3  | 0.03
Latin America | 13  | 1.6  | 0.5
*All numbers per million population |  |  |

According to the Council of Europe, Spain through the Spanish Transplant Organization shows the highest worldwide rate of 35.1[120][121] donors per million population in 2005 and 33.8</ref>[122][123][124][125][126][127][128][129]

* 2025: First human bladder transplant (US)[130][131]

## Society and culture

### Success rates

Since 2000, there have been approximately 2,200 lung transplants performed each year worldwide. From 2000 to 2006, the median survival period for lung transplant patients has been 5.5 years.[132]

### Comparative costs

In China, a kidney transplant operation runs for around $70,000, liver for $160,000, and heart for $120,000.[106]

### Safety

In the United States, tissue transplants are regulated by the Food and Drug Administration (FDA), which enforces stringent safety standards primarily designed to prevent the transmission of communicable diseases. These regulations include detailed criteria for donor screening and testing, as well as strict controls over the processing and distribution of tissue grafts. In contrast, organ transplants are not regulated by the FDA.[133] It is essential that the HLA complexes of both the donor and recipient be as closely matched as possible to prevent graft rejection.

In November 2007, the CDC reported the first-ever case of HIV and Hepatitis C being simultaneously transferred through an organ transplant. The donor was a 38-year-old male classified as "high-risk" by donation organizations, whose organs transmitted HIV and Hepatitis C to four recipients. Experts suggest that the infections went undetected in screening tests because the donor likely contracted the diseases within three weeks prior to death, a period during which antibody levels are too low for detection. This incident has prompted calls for more sensitive screening methods capable of identifying antibodies earlier. Currently, standard tests cannot reliably detect the small number of antibodies produced in HIV infections within the first 90 days, or Hepatitis C infections within 18–21 days before organ donation.

Nucleic acid testing is now being done by many organ procurement organizations and is able to detect HIV and hepatitis C directly within seven to ten days of exposure to the virus.[134]

### Transplant laws

Both developing and developed countries have forged various policies to try to increase the safety and availability of organ transplants to their citizens. However, whilst potential recipients in developing countries may mirror their more developed counterparts in desperation, potential donors in developing countries do not. The Indian government has had difficulty tracking the flourishing organ black market in their country, but in recent times it has amended its organ transplant law to make punishment more stringent for commercial dealings in organs. It has also included new clauses in the law to support deceased organ donation, such as making it mandatory to request for organ donation in case of brain death. Other countries victimized by illegal organ trade have also implemented legislative reactions. Moldova has made international adoption illegal in fear of organ traffickers. China has made selling of organs illegal as of July 2006 and claims that all prisoner organ donors have filed consent. However, doctors in other countries, such as the United Kingdom, have accused China of abusing its high capital punishment rate. Despite these efforts, illegal organ trafficking continues to thrive and can be attributed to corruption in healthcare systems, which has been traced as high up as the doctors themselves in China and Ukraine, and the blind eye economically strained governments and health care programs must sometimes turn to organ trafficking. Some organs are also shipped to Uganda and the Netherlands. This was a main product in the triangular trade in 1934.[135]

Starting on 1 May 2007, doctors involved in commercial trade of organs will face fines and suspensions in China. Only a few certified hospitals will be allowed to perform organ transplants in order to curb illegal transplants. Harvesting organs without donor's consent was also deemed a crime.[136]

On 27 June 2008, Indonesian, Sulaiman Damanik, 26, pleaded guilty in Singapore court for sale of his kidney to CK Tang's executive chair, Tang Wee Sung, 55, for 150 million rupiah (S$22,200). The Transplant Ethics Committee must approve living donor kidney transplants. Organ trading is banned in Singapore and in many other countries to prevent the exploitation of "poor and socially disadvantaged donors who are unable to make informed choices and suffer potential medical risks." Toni, 27, the other accused, donated a kidney to an Indonesian patient in March, alleging he was the patient's adopted son, and was paid 186 million rupiah (US$20,200). Upon sentence, both would suffer each, 12 months in jail or 10,000 Singapore dollars (US$7,600) fine.[137][138]

In an article appearing in the April 2004 issue of Econ Journal Watch,[90] economist Alex Tabarrok examined the impact of direct consent laws on transplant organ availability. Tabarrok found that social pressures resisting the use of transplant organs decreased over time as the opportunity of individual decisions increased. Tabarrok concluded his study suggesting that gradual elimination of organ donation restrictions and move to a free market in organ sales will increase supply of organs and encourage broader social acceptance of organ donation as a practice.

In the United States 24 states have no law preventing discrimination against potential organ recipients based on cognitive ability, including children. A 2008 study found that of the transplant centers surveyed in those states 85 percent considered disability when deciding transplant list and forty four percent would deny an organ transplant to a child with a neurodevelopmental disability.[139][140]

### Ethical concerns

Main articles: Biology:Ethics of organ transplantation and Declaration of Istanbul

The existence and distribution of organ transplantation procedures in developing countries, while almost always beneficial to those receiving them, raise many ethical concerns. Both the source and method of obtaining the organ to transplant are major ethical issues to consider, as well as the notion of distributive justice. The World Health Organization argues that transplantations promote health, but the notion of "transplantation tourism" has the potential to violate human rights or exploit the poor, to have unintended health consequences, and to provide unequal access to services, all of which ultimately may cause harm. Regardless of the "gift of life", in the context of developing countries, this might be coercive. The practice of coercion could be considered exploitative of the poor population, violating basic human rights according to Articles 3 and 4 of the Universal Declaration of Human Rights. There is also a powerful opposing view, that trade in organs, if properly and effectively regulated to ensure that the seller is fully informed of all the consequences of donation, is a mutually beneficial transaction between two consenting adults, and that prohibiting it would itself be a violation of Articles 3 and 29 of the Universal Declaration of Human Rights.

Even within developed countries there is concern that enthusiasm for increasing the supply of organs may trample on respect for the right to life. The question is made even more complicated by the fact that the "irreversibility" criterion for legal death cannot be adequately defined and can easily change with changing technology.[141] U.S. reforms post-2022 aim to eliminate inequities in the organ transplantation system through evidence-based interventions.[142]

### Artificial organ transplantation

Surgeons, notably Paolo Macchiarini, in Sweden performed the first implantation of a synthetic trachea in July 2011, for a 36-year-old patient who had cancer. Stem cells taken from the patient's hip were treated with growth factors and incubated on a plastic replica of his natural trachea.[143]

According to information revealed by the Swedish documentary Dokument Inifrån: Experimenten ("Documents from the Inside: The Experiments"), the patient Andemariam developed a progressively worsening and ultimately bloody cough while hospitalized. An autopsy later determined that 90% of his synthetic windpipe had detached. Reports indicate that Andemariam made several attempts to consult with Dr. Macchiarini regarding his complications and even underwent surgery intended to replace the synthetic windpipe. However, Macchiarini was reportedly difficult to access for appointments, and the autopsy suggested that the old synthetic windpipe had not actually been replaced.[144]

Macchiarini's academic credentials have been called into question[145] and he has recently been accused of alleged research misconduct.[146]

Left ventricular assist devices (LVADs) are frequently used as a "bridge" to extend the survival of patients awaiting a heart transplant. For example, former U.S. Vice President Dick Cheney had an LVAD implanted in 2010 and received a heart transplant 20 months later, in 2012. In that same year, approximately 3,000 ventricular assist devices were implanted in the United States, compared to around 2,500 heart transplants. Additionally, safety measures such as the widespread use of airbags in vehicles and increased helmet use among bicyclists and skiers have contributed to a reduction in fatal head injuries, a common source of donor hearts.[147]

## Research

An early-stage medical laboratory and research company, called Organovo, designs and develops functional, three dimensional human tissue for medical research and therapeutic applications. The company utilizes its NovoGen MMX Bioprinter for 3D bioprinting. Organovo anticipates that the bioprinting of human tissues will accelerate the preclinical drug testing and discovery process, enabling treatments to be created more quickly and at lower cost. Additionally, Organovo has long-term expectations that this technology could be suitable for surgical therapy and transplantation.[148]

An active area of research focuses on improving and evaluating organs during preservation. Several promising techniques have been developed, most involving perfusion of the organ under either hypothermic (4–10 °C) or normothermic (37 °C) conditions. Although these methods increase the cost and logistical complexity of organ retrieval, preservation, and transplantation, early results indicate significant benefits. Hypothermic perfusion is currently used clinically for kidney and liver transplants, while normothermic perfusion has been effectively applied in heart, lung, and liver transplants, and to a lesser extent, in kidney transplantation.[149]

Another area of ongoing research to address donor shortages involves the use of genetically engineered animals as potential organ donors and inducing immune tolerance to reduce rejection.[56] Scientists have developed genetically modified pigs designed to reduce the risk of organ rejection when transplanted into human patients. Although this research remains in the early stages, it holds significant promise for addressing the shortage of donor organs and the growing number of patients on transplant waiting lists. Clinical trials are currently being delayed until concerns about the potential transmission of diseases from pigs to humans can be thoroughly addressed and managed safely (Isola & Gordon, 1991).

## Negative effects of transplantation

In 2021, the National Academies of Sciences, Engineering, and Medicine published a report titled Exploring the State of the Science of Solid Organ Transplantation and Disability which discussed quality of life after transplantation.[150] In the chapter about pediatric transplantation, Nitika Gupta, Eyal Shemesh, George Mazariegos, Dorry Segev, and other researchers discuss outcomes in young transplant recipients. Pediatric intestine transplant recipients have poor long-term outcomes with 15% requiring retransplant within 5 years of receiving their first transplant and 40-60% experiencing transplant failure after 10 years.

Pediatric transplant recipients frequently have mental and behavioral problems. As many as one in three adolescent transplant recipients are nonadherenant to their medication regimens. Adolescent kidney recipients are more likely to be diagnosed with mental disorders such as depression and anxiety following transplantation, living with their parents and experiencing unemployment as adults, and having poor grades in school. They were also more likely to commit suicide and abuse substances. Dr. Clifford Chin explains his opinion that rather than being a cure, heart transplantation creates a chronic illness with a plethora of adverse side effects, such as developmental delay, limited ability to participate in everyday activities, and impaired cognitive function, which may suggest an arrested development, but hepatologist Saeed Mohammad later explains how lack of proper oxygen levels may effect intellectual ability following the transplant.

Saeed Mohammad also discussed the correlation between developmental milestones and pediatric transplantation in general. He considers pediatric transplant recipients to be chronically ill, even though the transplants cured their illnesses. He explains how children who had received transplants are often underestimated, but also points out that immunosuppressive therapy can affect brain development.

Patients who had received liver transplants between the ages of eleven and seventeen had lower survival rates than compared to those who had received liver transplants when they were under five years old, especially if they had their transplant between the ages of sixteen and seventeen. Nitika Gupta, a pediatric hepatologist, points out that teenagers' brains are still forming and developing, which can have critical effects on patients.

It should be pointed out that the researchers refer to pediatric transplant recipients as chronically ill, special needs, and affected by chronic health conditions, though transplantation is a medical operation, rather than a diagnosable condition.[150]

In young liver transplant recipients, nonadherence was more common in girls, patients living in single-parent homes, and patients nineteen and older.[151]

## See also

* Allotransplantation
* Artificial organ
* Beating heart cadaver
* Blood transfusion
* Laboratory-grown organ
* Organ donation
* Regenerative medicine
* Transplant rejection
* Xenotransplantation
* Microchimerism
* Mitochondrial replacement therapy

Others

* Grafting
* List of organ transplant donors and recipients
* Transplantable organs and tissues

## References

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4. ↑ 4.0 4.1 Black, Cara K.; Termanini, Kareem M.; Aguirre, Oswaldo; Hawksworth, Jason S.; Sosin, Michael (October 2018). "Solid organ transplantation in the 21st century". Annals of Translational Medicine 6 (20): 409. doi:10.21037/atm.2018.09.68. ISSN 2305-5839. PMID 30498736.
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24. ↑ Blum, Karen (1 August 2003). "Seattle Times Article on domino transplants at Johns Hopkins". Seattletimes.nwsource.com. http://seattletimes.nwsource.com/html/nationworld/2004336130_kidney09.html.
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33. ↑ 33.0 33.1 "OPTN Policy 3.7 – Allocation of Thoracic Organs". United Network for Organ Sharing. 31 January 2013. http://optn.transplant.hrsa.gov/policiesAndBylaws/policies.asp.
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42. ↑ Ejzenberg, Dani; Andraus, Wellington; Baratelli Carelli Mendes, Luana Regina; Ducatti, Liliana; Song, Alice; Tanigawa, Ryan; Rocha-Santos, Vinicius; Macedo Arantes, Rubens et al. (December 2018). "Livebirth after uterus transplantation from a deceased donor in a recipient with uterine infertility". The Lancet 392 (10165): 2697–2704. doi:10.1016/S0140-6736(18)31766-5. PMID 30527853.
43. ↑ Connor, Steve (24 September 1999). "Doctors plan first testicle transplant". The Independent (London). https://www.independent.co.uk/life-style/health-and-families/health-news/doctors-plan-first-testicle-transplant-742015.html.
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66. ↑ Rapaport FT (June 1986). "The case for a living emotionally related international kidney donor exchange registry". Transplant. Proc. 18 (3 Suppl 2): 5–9. PMID 3521001.
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71. ↑ Amy Ellis Nutt/The Star-Ledger (5 June 2009). "Kidney donations connect strangers in "Chain of Life" forged by transplants". The Star-Ledger. http://www.nj.com/news/index.ssf/2009/06/kidney_donations_connect_stran.html.
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73. ↑ Val Willingham (14 December 2009). "Massive transplant effort pairs 13 kidneys to 13 patients". CNN. http://www.cnn.com/2009/HEALTH/12/14/kidney.transplant/index.html.
74. ↑ Wilkinson, T.M. (2011). ethics and the acquisition of organs. Oxford University Press. p. 148. ISBN 978-0-19-960786-0.
75. ↑ "Would you give your kidney to a stranger?". CNN. 5 June 2006. http://www.cnn.com/2006/HEALTH/06/01/living.donors/index.html.
76. ↑ Plibersek, Tanya (7 April 2013). "Supporting Paid Leave for Living Organ Donors". https://parlinfo.aph.gov.au/parlInfo/search/display/display.w3p;query=Id:"media/pressrel/2357133".
77. ↑ "Live donors to get financial support", Rashida Yosufzai, AAP, 7 April 2013
78. ↑ Bland B (2008). "Singapore legalises compensation payments to kidney donors". BMJ 337. doi:10.1136/bmj.a2456. PMID 18996933.
79. ↑ Budiani-Saberi, D.A.; Delmonico, F.L. (May 2008). "Organ Trafficking and Transplant Tourism: A Commentary on the Global Realities". American Journal of Transplantation 8 (5): 925–929. doi:10.1111/j.1600-6143.2008.02200.x. PMID 18416734.
80. ↑ The Meat Market , The Wall Street Journal, 8 January 2010.
81. ↑ Martinez, Edecio (27 July 2009). "Black Market Kidneys, $160,000 a Pop". CBS News. https://www.cbsnews.com/news/black-market-kidneys-160000-a-pop/.
82. ↑ 82.0 82.1 "Psst, wanna buy a kidney?". Organ transplants (The Economist Newspaper Limited 2011). 16 November 2006. https://www.economist.com/leaders/2006/11/16/psst-wanna-buy-a-kidney. Retrieved 12 June 2011.
83. ↑ Movassagh Hooman (2016). "Human Organ Donations Under the 'Iranian Model': A Rewarding Scheme for U.S. Regulatory Reform?". Indiana Health Law Review 13 (1): 82–118. doi:10.18060/3911.0013.
84. ↑ 84.0 84.1 Tober, Diane M. (September 2007). "Kidneys and Controversies in the Islamic Republic of Iran: The Case of Organ Sale". Body & Society 13 (3): 151–170. doi:10.1177/1357034x07082257.
85. ↑ Schall, John A. (May 2008). "A New Outlook on Compensated Kidney Donations". RENALIFE. American Association of Kidney Patients. http://www.aakp.org/aakp-library/Compensated-Donations/.
86. ↑ Gary S. Becker; Julio Jorge Elías. "Introducing Incentives in the Market for Live and Cadaveric Organ Donations". The New York Times. http://graphics8.nytimes.com/images/blogs/freakonomics/pdf/BeckerEliasOrgans(5-06).pdf.
87. ↑ William Saletan (14 April 2007). "Shopped Liver: The worldwide market in human organs". Salon. http://www.slate.com/id/2164177/nav/tap1/.
88. ↑ "Organ solicitation on the Internet: every man for himself?". Hastings Cent Rep 35 (3): 14; discussion 14–15. 2005. doi:10.1353/hcr.2005.0052. PMID 16092393.
89. ↑ Elías, Julio J.; Lacetera, Nicola; Macis, Mario (August 2019). "Paying for Kidneys? A Randomized Survey and Choice Experiment". American Economic Review 109 (8): 2855–2888. doi:10.1257/aer.20180568.
90. ↑ 90.0 90.1 Alexander Tabarrok (April 2004). "How to Get Real About Organs". Econ Journal Watch (Fraser Institute) 1 (1): 11–18. http://www.econjournalwatch.org/pdf/Tabarrok Comment April 2004.pdf. Retrieved 24 December 2013.
91. ↑ "Iranian model of paid and regulated living-unrelated kidney donation". Clinical Journal of the American Society of Nephrology 1 (6): 1136–45. November 2006. doi:10.2215/CJN.00700206. PMID 17699338.
92. ↑ Griffin A (March 2007). "Kidneys on demand". British Medical Journal 334 (7592): 502–05. doi:10.1136/bmj.39141.493148.94. PMID 17347232.
93. ↑ "Organ transplants: Psst, wanna buy a kidney?". The Economist. 16 November 2006. http://www.economist.com/opinion/displaystory.cfm?story_id=8173039.
94. ↑ David Holcberg (2005). "To Save Lives, Legalize Trade in Organs". Aynrand.org. The Ayn Rand Center for Individual Rights. http://www.aynrand.org/site/News2?JServSessionIdr012=e38noczlb2.app7a&page=NewsArticle&id=11517&news_iv_ctrl=1085.
95. ↑ Alexander G. Higgins (30 March 2007). "WHO says organ demand outstrips supply". USA Today. http://usatoday30.usatoday.com/news/health/2007-03-30-1689076706_x.htm.
96. ↑ R. Bhagwan Singh (16 January 2007). "Indian police probe kidney sales by tsunami victims". Reuters. https://www.reuters.com/article/healthNews/idUSDEL21432720070116.
97. ↑ Rothman DJ (October 2002). "Ethical and social consequences of selling a kidney". JAMA 288 (13): 1640–41. doi:10.1001/jama.288.13.1640. PMID 12350195.
98. ↑ "Cyprus Clinic Accused of Human Egg Harvesting". Pulitzer Center. 2010-08-17. http://pulitzercenter.org/blog/untold-stories/importing-egg-donors-ukraine-cyprus.
99. ↑ Scott Carney (17 August 2010). "Untold Stories: The Cyprus Scramble". http://pulitzercenter.org/blog/untold-stories/cyprus-scramble-investigation-human-egg-markets.
100. ↑ Carney, Scott (1 September 2010). "Unpacking the Global Human Egg Trade | Human Eggs for Sale". Fast Company. http://www.fastcompany.com/magazine/148/eggs-for-sale.html. Retrieved 25 December 2013.
101. ↑ "WMA Council Resolution on Organ Donation in China". World Medical Association. May 2006. http://www.wma.net/en/30publications/10policies/30council/cr_5/index.html.
102. ↑ McDermott, Staci (2025-08-07). "Uncovering Evil: Illegal Organ Harvesting in China and the 2025 "Stop Forced Organ Harvesting Act"" (in en-US). https://www.mccaininstitute.org/resources/blog/uncovering-evil-illegal-organ-harvesting-in-china-and-the-2025-stop-forced-organ-harvesting-act/.
103. ↑ "First Known Survivor of China's Forced Organ Harvesting Speaks Out" (in en-US). https://thediplomat.com/2024/08/first-known-survivor-of-chinas-forced-organ-harvesting-speaks-out/.
104. ↑ Kirchgaessner, Stephanie (8 February 2017). "China may still be using executed prisoners' organs, official admits". The Guardian. https://www.theguardian.com/world/2017/feb/07/china-still-using-executed-prisoners-organs-transplants-vatican.
105. ↑ 105.0 105.1 "Error: no `|title=` specified when using {{Cite web}}" (in zh). http://www.worldjournal.com/wj-ch-news.php?nt_seq_id=1275791.Error:+no+`|title=`+specified when+using+{{[[Template:Cite+web|Cite+web]]}}&rft.atitle=&rft_id=http://www.worldjournal.com/wj-ch-news.php?nt_seq_id=1275791&rfr_id=info:sid/en.wikibooks.org:Medicine:Organ_transplantation">
106. ↑ 106.0 106.1 106.2 David Kilgour, David Matas (6 July 2006, revised 31 January 2007) An Independent Investigation into Allegations of Organ Harvesting of Falun Gong Practitioners in China (free in 22 languages) organharvestinvestigation.net
107. ↑ Jay Nordlinger (25 August 2014) "Face The Slaughter: The Slaughter: Mass Killings, Organ Harvesting, and China's Secret Solution to Its Dissident Problem, by Ethan Gutmann" , National Review
108. ↑ Ethan Gutmann (August 2014) The Slaughter: Mass Killings, Organ Harvesting and China's Secret Solution to Its Dissident Problem "Average number of Falun Gong in Laogai System at any given time" Low estimate 450,000, High estimate 1,000,000 p. 320. "Best estimate of Falun Gong harvested 2000 to 2008" 65,000 p. 322.
109. ↑ Kilgour, David. "Blood Harvest: The Slaughter". End Organ Pillaging: 428. http://endorganpillaging.org/wp-content/uploads/2016/06/Bloody_Harvest-The_Slaughter-June-23-V2.pdf. Retrieved 18 July 2016.
110. ↑ Samuels, Gabriel (2016-06-29). "China kills millions of innocent meditators for their organs, report finds". https://www.independent.co.uk/news/world/asia/china-kills-millions-of-innocent-meditators-for-their-organs-report-finds-a7107091.html.
111. ↑ Hospitals ban Chinese surgeon training The Sydney Morning Herald. 5 December 2006
112. ↑ Market Wired (8 May 2008) China's Organ Harvesting Questioned Again by UN Special Rapporteurs: FalunHR Reports Retrieved 26 October 2014
113. ↑ Anuj Chopra, Chronicle Foreign Service (9 February 2008). "Organ-transplant black market thrives in India". SFGate. http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/02/09/MN23UPQ0K.DTL.
114. ↑ Vanessa Hua (17 April 2006). "Patients seeking transplants turn to China / Rights activists fear organs are taken from executed prisoners". SFGate. http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/04/17/MNGHAIA5B51.DTL.
115. ↑ Coonan, Clifford (21 March 2006). "Japan's rich buy organs from executed Chinese prisoners". The Independent (London). https://www.independent.co.uk/news/world/asia/japans-rich-buy-organs-from-executed-chinese-prisoners-470719.html.
116. ↑ Cyranoski, David; Gaind, Nisha; Gibney, Elizabeth; Masood, Ehsan; Maxmen, Amy; Reardon, Sara; Schiermeier, Quirin; Tollefson, Jeff et al. (19 December 2019). "Nature's 10: Ten people who mattered in science in 2019". Nature 576 (7787): 361–372. doi:10.1038/d41586-019-03749-0. PMID 31848484.
117. ↑ Rogers, Wendy; Robertson, Matthew P; Ballantyne, Angela; Blakely, Brette; Catsanos, Ruby; Clay-Williams, Robyn; Fiatarone Singh, Maria (February 2019). "Compliance with ethical standards in the reporting of donor sources and ethics review in peer-reviewed publications involving organ transplantation in China: a scoping review". BMJ Open 9 (2). doi:10.1136/bmjopen-2018-024473. PMID 30723071.
118. ↑ 118.0 118.1 White, SL; Hirth, R; Mahíllo, B; Domínguez-Gil, B; Delmonico, FL; Noel, L; Chapman, J; Matesanz, R et al. (1 November 2014). "The global diffusion of organ transplantation: trends, drivers and policy implications.". Bulletin of the World Health Organization 92 (11): 826–35. doi:10.2471/BLT.14.137653. PMID 25378744.
119. ↑ "The Transplantation Society". http://www.transplantation-soc.org/globalalliance.php#6a.
120. ↑ "Deceased Organ Donors, Annual Rate (p. m. p.) Europe". Council of Europe. p. 4. http://www.coe.int/t/dg3/health/Source/2006transplantNWSLTTR_en.pdf.
121. ↑ "Donantes de órganos en España. Número total y tasa anual (p. m. p.)". Organización Nacional de Transplantes. http://www.ont.es/Estadistica?accion=3&id_estadistica=24&posicion=1. (I wasn't sure about this – but I'm pretty sure this already supports our claim. This link is "dead cold" – archive.is, WayBack, WebCite, etc.)
122. ↑ Cafarotti, Stefano; Torre, Tiziano; Patella, Miriam; Demertzis, Stefanos (April 2023). "Resection of thymic carcinoma after induction therapy and reconstruction of right ventricular outflow tract with pulmonary homograft" (in en). European Journal of Cardio-Thoracic Surgery 63 (4). doi:10.1093/ejcts/ezad069. PMID 36852845.
123. ↑ "Prima mondiale al Cardiocentro". Radiotelevisione svizzera. 12 April 2023. https://www.rsi.ch/news/ticino-e-grigioni-e-insubria/Prima-mondiale-al-Cardiocentro-15871984.html.
124. ↑ Bluewin. "Prima mondiale al Cardiocentro"
125. ↑ Ticinonews. "Intervento al Cardiocentro per un tumore all'arteria polmonare"
126. ↑ Cardiocentro. "Un intervento straordinario al Cardiocentro"
127. ↑ PR.com. "Press release: World-first lung artery transplant at Cardiocentro"
128. ↑ "World-First Pulmonary Artery Transplant Performed In Thymic Carcinoma Case By Professor Stefano Cafarotti" (in en). 18 April 2025. https://www.benzinga.com/pressreleases/25/04/r44800812/world-first-pulmonary-artery-transplant-performed-in-thymic-carcinoma-case-by-professor-stefano-ca.
129. ↑ Robert Krcmar (8 June 2022). "Un intervento unico al mondo al Cardiocentro" (in it). https://www.tio.ch/ticino/attualita/1588406/intervento-cardiocentro-tumore-arteria-petto.
130. ↑ Nunn, Emily Baumgaertner (2025-05-18). "Surgeons Perform First Human Bladder Transplant" (in en-US). The New York Times. ISSN 0362-4331. https://www.nytimes.com/2025/05/18/health/bladder-transplant-human.html?unlocked_article_code=1.IU8.3ulr.Rkg7l6K72ElH&smid=url-share.
131. ↑ "First human bladder transplant performed at UCLA - Urology | UCLA Health" (in en). https://www.uclahealth.org/news/release/first-human-bladder-transplant-performed-ucla.
132. ↑ Dabak G, Şenbaklavacı Ö (2016). "History of Lung Transplantation". Turk Thorac J 17 (2): 71–75. doi:10.5578/ttj.17.2.014. PMID 29404127.
133. ↑ Center for Biologics Evaluation and Research. "Questions about Tissues – Tissue and Tissue Product Questions and Answers". https://www.fda.gov/vaccines-blood-biologics/tissue-tissue-products/tissue-and-tissue-product-questions-and-answers.
134. ↑ Len, O.; Garzoni, C.; Lumbreras, C.; Molina, I.; Meije, Y.; Pahissa, A.; Grossi, P.; The ESCMID Study Group of Infection in Compromised Hosts (ESGICH) (29 January 2014). "Recommendations for Screening of Donor and Recipient Prior to Solid Organ Transplantation and to Minimize Transmission of Donor-Derived Infections". Clin Microbiol Infect 20: 10–18. doi:10.1111/1469-0691.12557. PMID 24476053.
135. ↑ Hackmann, M; English, RA; Kizer, KW, eds. (2022-02-25), "Introduction and Study Context" (in en), Realizing the Promise of Equity in the Organ Transplantation System (National Academies Press (US)), https://www.ncbi.nlm.nih.gov/books/NBK580031/, retrieved 2025-11-25
136. ↑ "China issues new rules on organs". BBC. 7 April 2007. http://news.bbc.co.uk/2/hi/asia-pacific/6534363.stm.
137. ↑ "Two Indonesians plead guilty in Singapore midorgan trading case". Agence France-Presse. Abs-Cbn Interactive. 28 June 2008. http://www.abs-cbnnews.com/world/06/28/08/two-indonesians-plead-guilty-singapore-organ-trading-case.
138. ↑ Lee Hui Chieh; Sujin Thomas (28 June 2008). "CK Tang boss quizzed by police". The Straits Times. http://www.straitstimes.com/Free/Story/STIStory_252526.html.
139. ↑ Stetler, Pepper (2021-06-14). "It's Perfectly Legal in Many States to Deny People With Down Syndrome Organ Transplants" (in en). https://slate.com/technology/2021/06/organ-transplants-down-syndrome-iq.html.
140. ↑ Richards, Christopher T.; Crawley, LaVera M.; Magnus, David (November 2009). "Use of neurodevelopmental delay in pediatric solid organ transplant listing decisions: Inconsistencies in standards across major pediatric transplant centers". Pediatric Transplantation 13 (7): 843–850. doi:10.1111/j.1399-3046.2008.01072.x. PMID 19067911.
141. ↑ "Pro/con ethics debate: When is dead really dead?". Critical Care 9 (6): 538–42. 2005. doi:10.1186/cc3894. PMID 16356234.
142. ↑ National Academies of Sciences, Engineering; Division, Health and Medicine; Services, Board on Health Care; Policy, Board on Health Sciences; Committee on A Fairer and More Equitable, Cost-Effective; Hackmann, Meredith; English, Rebecca A.; Kizer, Kenneth W. (2022-02-25), "Introduction and Study Context" (in en), Realizing the Promise of Equity in the Organ Transplantation System (National Academies Press (US)), https://www.ncbi.nlm.nih.gov/books/NBK580031/, retrieved 2025-11-25
143. ↑ "Cancer Patient Gets First Totally Artificial Windpipe". NPR. 8 July 2011. https://www.npr.org/templates/transcript/transcript.php?storyId=137701848.
144. ↑ "Dokument inifrån: Experimenten – Avsnitt 2: Varje kirurg har sin kyrkogård". http://www.svtplay.se/video/5990228/dokument-inifran-experimenten/dokument-inifran-experimenten-avsnitt-2.
145. ↑ Ciralsky, Adam (31 January 2016). "The Celebrity Surgeon Who Used Love, Money, and the Pope to Scam an NBC News Producer". Vanity Fair. https://www.vanityfair.com/news/2016/01/celebrity-surgeon-nbc-news-producer-scam. Retrieved 7 January 2016.
146. ↑ "Karolinskas "superkirurg" utreds och granskas". 13 January 2016. http://www.expressen.se/nyheter/tekniken-skulle-radda-liv--sex-av-atta-dog/.
147. ↑ Cheney, helped for many months by a mechanical heart, is "terrific" after transplant, Washington Post, David Brown and Lena H. Sun, 25 March 2012.
148. ↑ "3D Human Tissues for Medical Research & Therapeutics". http://www.organovo.com/3d-human-tissues.
149. ↑ Nasralla, David; Coussios, Constantin C.; Mergental, Hynek; Akhtar, M. Zeeshan; Butler, Andrew J.; Ceresa, Carlo D. L.; Chiocchia, Virginia; Dutton, Susan J. et al. (2018). "A randomized trial of normothermic preservation in liver transplantation". Nature 557 (7703): 50–56. doi:10.1038/s41586-018-0047-9. PMID 29670285. Bibcode: 2018Natur.557...50N. https://www.repository.cam.ac.uk/handle/1810/276902.
150. ↑ 150.0 150.1 National Academies of Sciences Engineering and Medicine (30 June 2021). Exploring the State of the Science of Solid Organ Transplantation and Disability: Proceedings of a Workshop. Ruth Cooper, Megan Snair, Laura Aiuppa Denning, Division, Health and Medicine, Services, Board on Health Care. Washington, D.C: National Academies Press. ISBN 978-0-309-68336-4. https://www.ncbi.nlm.nih.gov/books/NBK573870/.
151. ↑ Berquist, R. K.; Berquist, W. E.; Esquivel, C. O.; Cox, K. L.; Wayman, K. I.; Litt, I. F. (2006). "Adolescent non-adherence: prevalence and consequences in liver transplant recipients". Pediatric Transplantation 10 (3): 304–310. doi:10.1111/j.1399-3046.2005.00451.x. PMID 16677353.

* Isola, L. M., & Gordon, J. W. (1991). Transgenic animals: a new era in developmental biology and medicine. Biotechnology (Reading, Mass.), 16, 3–20.

## Further reading

* World Health Organization (2008). Human organ and tissue transplantation. Geneva / New York: WHO. p. 13. http://apps.who.int/gb/ebwha/pdf_files/A62/A62_15-en.pdf. Retrieved 24 December 2013.

## External links

* Organ Transplant survival rates from the Scientific Registry of Transplant Recipients

* The short film A Science of Miracles (2009) is available for free download at the Internet Archive
* "Overcoming the Rejection Factor: MUSC's First Organ Transplant" online exhibit at Waring Historical Library

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