When Biobanks Meet Religion: Association Between Religiosity and Attitudes of Polish Medical Students Toward Biobanking of Human Biological Material for Research Purposes

While biobanking is expanding globally, the empirical evidence concerning the impact of religion on future healthcare professionals' awareness and willingness to donate biospecimens for biobank research is lacking. To understand how medical students' religious beliefs can fuel their questions regarding how biospecimens would be stored, cared for, and used, we conducted a survey among 1500 medical students at Poznań University of Medical Sciences. Our findings suggest that, while both religious and nonreligious students supported the idea of biobanking of human biological material and were willing to donate for research purposes, nonreligious students felt more positive toward biobanking, supported the idea of establishing biobanks in Poland more often, and were more eager to donate most types of tissues and to participate in biobank research. Religious beliefs were also associated with medical students' perception of benefits and risks resulting from biobanking, perceived trust toward various biobank institutions, and preferred type of consent.

How to counteract the lack of donor tissue in cardiac surgery? Initial experiences with a newly established homograft procurement program

Homograft heart valves may have significant advantages and are preferred for the repair of congenital valve malformations, especially in young women of childbearing age, athletes and in patients with active endocarditis. A growing problem, however, is the mismatch between tissue donation and the increasing demand. The aim of this paper is to describe the initiation process of a homograft procurement program to attenuate the shortage of organs. A comprehensive description of the infrastructure and procedural steps required to initiate a cardiac and vascular tissue donation program combined with a prospective follow-up of all homografts explanted at our institution. Between January 2020 and May 2022, 28 hearts and 12 pulmonary bifurcations were harvested at our institution and delivered to the European homograft bank. Twenty-seven valves (19 pulmonary valves, 8 aortic valves) were processed and allocated for implantation. The reasons for discarding a graft were either contamination (n = 14), or morphology (n = 13) or leaflet damage (n = 2). Five homografts (3 PV, 2 AV) have been cryopreserved and stored while awaiting allocation. One pulmonary homograft with a leaflet cut was retrieved by bicuspidization technique and awaits allocation, as a highly requested small diameter graft. The implementation of a tissue donation program in cooperation with a homograft bank can be achieved with reasonable additional efforts at a transplant center with an in-house cardiac surgery department. Challenging situations with a potential risk of tissue injury during procurement include re-operation, harvesting by a non-specialist surgeon and prior central cannulation for mechanical circulatory support.

Isolation and primary culture of human abdominal aorta smooth muscle cells from brain-dead donors: an experimental model for vascular diseases

Primary cell cultures are essential tools for elucidating the physiopathological mechanisms of the cardiovascular system. Therefore, a primary culture growth protocol of cardiovascular smooth muscle cells (VSMCs) obtained from human abdominal aortas was standardized. Ten abdominal aorta samples were obtained from patients diagnosed with brain death who were organ and tissue donors with family consent. After surgical ablation to capture the aorta, the aortic tissue was removed, immersed in a Custodiol® solution, and kept between 2 and 8 °C. In the laboratory, in a sterile environment, the tissue was fragmented and incubated in culture plates containing an enriched culture medium (DMEM/G/10% fetal bovine serum, L-glutamine, antibiotics and antifungals) and kept in an oven at 37 °C and 5% CO2. The aorta was removed after 24 h of incubation, and the culture medium was changed every six days for twenty days. Cell growth was confirmed through morphological analysis using an inverted optical microscope (Nikon®) and immunofluorescence for smooth muscle alpha-actin and nuclei. The development of the VSMCs was observed, and from the twelfth day, differentiation, long cytoplasmic projections, and adjacent cell connections occurred. On the twentieth day, the morphology of the VSMCs was confirmed by actin fiber immunofluorescence, which is a typical characteristic of VSMCs. The standardization allowed VSMC growth and the replicability of the in vitro test, providing a protocol that mimics natural physiological environments for a better understanding of the cardiovascular system. Its use is intended for investigation, tissue bioengineering, and pharmacological treatments.

[The presumed consent legislation - A success factor or a disruptive factor for tissue donation? A qualitative study based on multidisciplinary interviews with experts]

INTRODUCTION

Tissue transplantation can improve the quality of life of patients in a very wide range of applications. In 2021, around 900 people in Germany agreed to donate organs after death - the number of tissue donors was significantly higher. Nevertheless, there is a shortage of organs and tissues in Germany. In order to counteract this, the introduction of a presumed consent legislation has been discussed time and again. However, the debates focused on possible positive effects for organ donation, whereas potential consequences for tissue donation have so far not been considered in the political discourse or in research. Using an exploratory approach, this paper aims to contribute to closing this research gap: Multidisciplinary interviews with experts were conducted to investigate whether the presumed consent legislation is a key success factor for increasing the number of tissue donors in Germany and which other approaches might be promising.

METHODS

We conducted qualitative interviews with 14 experts who worked as employees in different positions in tissue banks/networks, ophthalmologists performing corneal transplantation, medical ethicists, lawyers or scientists. These interviews were evaluated using the structuring content analysis according to Mayring. In reporting, we followed the Standards for Reporting Qualitative Research (SQRQ).

RESULTS

The majority of experts did not consider presumed consent legislation to be a key factor in increasing the donation rate in Germany. Instead, an improvement of processes and structures in tissue donation was cited as the most important optimization potential. Furthermore, communication measures were postulated to create transparency about the characteristics of tissue donation as distinct from organ donation. These should address not only the general population, but also the professional groups involved in the tissue donation process.

CONCLUSION

The present study indicates that the presumed consent legislation is not a success factor for increasing the number of tissue donors in Germany. It would be far more effective to improve structures and processes in order to identify the large number of potential tissue donors and to be able to conduct informed conversations with their relatives. Information measures for the general public and professionals, which clearly differentiate between tissue donation and organ donation, are also more promising than fruitless debates about the introduction of the presumed consent legislation.

Eye donation in hospice and hospital palliative care settings: perceptions, practice, and service development needs - findings from a national survey

OBJECTIVES

New routes for supply of eye tissue are needed in the UK to support transplant surgery and medical research. Hospice care (HC) and Hospital-based Palliative care (HPC) services represent potential supply routes. This paper reports findings from the survey arm of the Eye Donation from Palliative and Hospice Care-Investigating potential, practice preference and perceptions study (EDiPPPP), objectives of which were to: i) Investigate existing practice in relation to eye donation across HC and HPC settings; ii) identify perceptions of HCPs toward embedding eye donation into routine end of life care planning; iii) investigate the informational, training, or support needs of clinicians regarding eye donation.

DESIGN

Online survey of UK-based HC and HPC clinicians, distributed through professional organisations (Association of Palliative Medicine (UK); Hospice UK).

PARTICIPANTS

One hundred fifty-six participants completed (63% HC; 37% HPC-8% response rate, of n = 1894 approached).

RESULTS

Majority of participants (63%, n = 99) supported raising eye donation (ED) with patients and families and agreed that ED should be discussed routinely with eligible patients. However, 72%, (n = 95) indicated that staff within their clinical setting did not routinely discuss the option of ED in end-of-life care planning conversations with the majority of participants reporting that the option of ED was not 'routinely discussed in multi-disciplinary team or other meetings.

CONCLUSIONS

Despite significant support, ED is not part of routine practice. Attention to barriers to embedding ED and reducing knowledge deficits are urgently needed to increase the supply of eye tissue for use in transplant operations.

[Terra incognita of tissue donation: A systematic literature review analyzing institutional factors influencing the willingness to donate tissue]

INTRODUCTION

Partly because of a lack of governmental commitment in educational work, tissue donation is largely unknown in the German population, although it has an increasing relevance for patient care. Due to the progress in research, the shortage of donor tissues in Germany is constantly increasing and has to be compensated by imports. In contrast, nations such as the USA are self-sufficient in donor tissue and can even export it. Since not only individual but also institutional factors (e.g., legal framework, allocation principles and the organization of tissue donation) can lead to these national differences in donor rates, the present systematic literature review will investigate how these factors influence the willingness to donate tissue.

METHODS

Relevant publications were systematically searched in seven databases. The search command consisted of English and German terms for the two search components "tissue donation" and "health care system". Papers published in English or German between 2004 and May 2021 and focusing on the analysis of institutional factors influencing the willingness to donate tissue post-mortem for transplantation were included (inclusion criteria); studies on blood and organ and living donation as well as publications not dealing with institutional factors influencing the willingness to donate tissue were excluded (exclusion criteria). In reporting, we followed the PRISMA 2020 statement.

RESULTS

Of 1,398 hits, seven were finally included after screening. Many of the remaining studies focused on organ donation or non-institutional aspects of tissue donation. Only two studies considered the central population perspective. Furthermore, five publications originate from an Australian research group and focus on the international allocation of tissues. The results highlight the inadequate state of research and at the same time suggest that both tissue bank organization and allocation principles may influence the willingness to donate tissue. At the same time, the publications indicate that tissue donors are often not informed about a potential commercial use or an international allocation of tissues, which represents an ethical-legal conflict.

CONCLUSION

The results indicate that institutional factors may influence people's willingness to donate. In particular, the lack of societal awareness of the issue results in various areas of tension for which recommendations for action have been developed. In order to prevent a slump in tissue donations because of socially unacceptable practices, further population-based studies should explore the institutional framework conditions that society demands for tissue donation.

Why community specialist practitioner district nurses should promote tissue donation

A high proportion of patients are being supported with end-of-life (EoL) care in the community, many of which are known to district nursing (DN) caseloads. Over time, community specialist practitioner district nursing (CSPDN) teams build therapeutic relationships with patients, and they are adept at providing EoL care. They are also now actively and routinely undertaking verification of death (VoD). Thus, they are in a prime position to promote and facilitate community tissue donation among patients and their families. The Government has recognised a need to promote organ and tissue donation, implementing the Organ Donation (Deemed Consent) Act (2019), whereby every person over the age of 18 years is now considered for organ and tissue donation with the anticipation of more recipients receiving life-changing tissue transplantation. DN teams seem to lack awareness of the change in law and, therefore, are not actively promoting this in practice. Further, there is no available community-focused guidance or training to support DNs to have these difficult and complex conversations enabling exploration of patients' wishes with regard to promote tissue donation. Therefore, guidance and education are needed in order to improve overall referrals, in the hope that they lead to an increase in donation.

Algorithms for the Testing of Tissue Donors for Human Immunodeficiency Virus, Hepatitis B Virus, and Hepatitis C Virus

Background

Although transmission of pathogenic viruses through human tissue grafts is rare, it is still one of the most serious dreaded risks of transplantation. Therefore, in addition to the detailed medical and social history, a comprehensive serologic and molecular screening of the tissue donors for relevant viral markers for human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) is necessary. In the case of reactive results in particular, clear decisions regarding follow-up testing and the criteria for tissue release must be made.

Methods

Based on the clinical relevance of the specific virus markers, the sensitivity of the serological and molecular biological methods used and the application of inactivation methods, algorithms for tissue release are suggested.

Results

Compliance with the preanalytical requirements and assessment of a possible hemodilution are mandatory requirements before testing the blood samples. While HIV testing follows defined algorithms, the procedures for HBV and HCV diagnostics are under discussion. Screening and decisions for HBV are often not as simple, e.g., due to cases of occult HBV infection, false-positive anti-HBc results, or early window period positive HBV NAT results. In the case of HCV diagnostics, modern therapies with direct-acting antivirals, which are often associated with successful treatment of the infection, should be included in the decision.

Conclusion

In HBV and HCV testing, a high-sensitivity virus genome test should play a central role in diagnostics, especially in the case of equivocal serology, and it should be the basis for the decision to release the tissue. The proposed test algorithms and decisions are also based on current European recommendations and standards for safety and quality assurance in tissue and cell banking.

Comparison of Total Immunoglobulin G in Ante- and Postmortem Blood Samples from Tissue Donors

Background

A serology testing for infectious diseases (HIV, hepatitis B and C, syphilis) is mandatory in tissue donors. In many donors postmortem blood is the only sample available. Even though serological tests and nucleic acid amplification tests (NAT) used are validated for postmortem blood, a characterization of those blood samples is not yet established. We therefore investigated the total immunoglobulin G (IgG) content in postmortem blood of tissue donors and compared it to a corresponding antemortem blood sample.

Methods

Ante- and postmortem blood samples were obtained from 100 consecutive tissue donors. The total IgG of all samples was measured using an immune-turbidometric test on the AU 480 Chemistry Analyzer (Beckman Coulter).

Results

The mean total IgG concentration of antemortem blood samples from all 100 donors was 8.9 g/L ± 3.7 g/L (median 8.9 g/L, range 1.5 to 23.8 g/L). In 80 donors the IgG concentration in the antemortem blood sample was within the normal range with values ≥6 g/L (mean 10.0 g/L ± 3.3 g/L, median 9.3 g/L,). The total IgG concentration of the postmortem blood samples was lower with 7.2 g/L ± 3.2 g/L (median 6.7 g/L, range 0.6 to 18.2 g/L). The difference between the values of the antemortem and postmortem blood samples was 1.7 g/L ± 2.6 g/L (16.3%) (median 1.6 g/L, range -7.7 to 10.1 g/L). In 36 donors this difference was less than 10%, in 23 it was between 10 and 25%, in 33 between 26 and 50%, and in 8 over 50%. In 57 donors the total IgG in the postmortem blood sample was within the normal range with ≥6 g/L, in 53 of them also the value of the antemortem blood sample was within the normal range. No correlation for total IgG was found regarding the donor characteristics (age, sex, disease) and the sample characteristics (hemolysis, postmortem time).

Conclusion

Total IgG values in antemortem samples were below the lower limit of 6 g/L in 20% of the cases. Total IgG was significantly lower in the postmortem samples compared to the antemortem samples, while 57% were still above the lower limit. No correlation with the postmortem time could be found. This lowered IgG levels should be payed attention to when using postmortem blood for infectious serology testing. Additional NAT testing should be considered.

Making a family decision to donate the brain for genomic research: lessons from the genotype-tissue expression project (GTEx)

This study sheds light on the attitudes and circumstances that influence decisions by families to donate the brain of a deceased family member for research. This study, a part of the Genotype-Tissue Expression (GTEx) project, interviewed families of patients who had authorized organ and/or tissue donation for transplantation. A total of 384 family decision makers (FDMs) who decided to donate organs and/or tissues for transplantation were also asked to donate to GTEx. Of these, 297 families were asked to donate their loved one's whole brain and 87 families responded to a hypothetical request for brain donation. The decision to donate the brain to GTEx, actually or hypothetically, was the major outcome measure. The majority of the FDMs would choose to donate the brain, 78%. Unwillingness to donate the brain was associated with four attitudes: (1) the FDM unwillingness to donate their own tissues for research (OR 1.91, 95% CI .67 to 2.96; p = .05), (2) concern with potential for-profit use of tissues (OR 2.12, 95% CI 1.2 to 3.7; p = .008), (3) reported squeamishness about tissue donation (OR 1.34, 95% CI 1.1 to 1.7; p = .006), and (4) belief that FDMs should have a say in how the donated tissues are used (OR 1.36, 95% CI 1.13 to 1.5; p = .01). Organ and tissue donors may present a plenteous source of brains for research. Family concerns about tissue use and collection should be addressed by requesters.

A Review of Skin Banking Guidelines and Standards Worldwide: Towards the Harmonization of Guidelines for Skin Banking in Therapeutic Applications for the Regions under the Asia Pacific Burn Association (APBA)

Currently, there are no harmonized guidelines which govern skin banking in the Asia Pacific region. Therefore, skin banks are either unregulated or rely on their nation's legislation or international accreditation to uphold their quality standards. A new set of skin banking guidelines was developed through a comprehensive review and collation of best international practices for the Asia Pacific Burn Association (APBA) members, from donor screening and testing, to skin recovery, processing, storage and distribution, and quality assurance. National regulatory requirements reviewed include the European directives, Australia's Therapeutic Goods Administration and Singapore's tissue banking standards. Further technical and quality management recommendations are referenced from the American Association of Tissue Banks (AATB), the United States Food and Drug Administration standards and guidance documents, various relevant European guides, Japanese Society of Tissue Transplantation guidelines and the Asia Pacific Association of Surgical Tissue Banking. Adapted mainly from the AATB standards, the new Asia Pacific Burn Association Guidelines for Skin Banking in Therapeutic Applications offer a comprehensive manual, addressing: governance and contracts; staff responsibilities; quality management; facilities, equipment and supplies management; donor consent and testing; and recommendations of good practices pertaining to skin recovery, processing, storage and distribution. Besides complementing current generic regulations, they provide technical specifications of major aspects unaddressed in most legislations. This inaugural set of new regional skin banking guidelines would be a start for regional members of the APBA to adopt, and will hopefully culminate in a set of standards so that, in the long run, skin allografts from this region can be of similar quality, which can simplify import process and facilitate the exchange of allografts between members.

Assessing comfort level of organ donation competencies among pediatric intensivists in Saudi Arabia: a national survey

BACKGROUND

As increasing the number of organ donations presents a global challenge, Saudi Arabia is no different. Intensivists can play a major role in maximizing the organ donation process and minimize the challenges. The purpose of this study was to investigate Saudi pediatric intensivists' comfort and importance levels of organ donation competencies.

METHODS

We conducted a cross-sectional survey whose sampling frame included 100 pediatric intensivists. The pediatrician intensivists were identified through an updated list provided by the Saudi Critical Care Society. We assessed 14 competencies categorized into four domains: the general donation, donation after brain death (DBD), neurological determination of death, and medicolegal, religious, and ethical domains. Then we investigated the association between these competencies and physicians' characteristics.

RESULTS

With a response rate of 76%, we found that 40-60% of the surveyed pediatric intensivists rated their comfort in 6 out of 14 competencies as high or very high. There was a statistically significant gap in the intensivists' rating of 10 competencies (i.e., high importance but low comfort levels). Ordinal regression showed that comfort levels with the general donation, neurological determination of death, and medicolegal, religious, and ethical domains were higher in intensivists who were frequently involved with DBD than those who had never been exposed.

CONCLUSIONS

Pediatric intensivists expressed low comfort levels to organ donation competencies that are essential for maximizing donation rates. Adapting mandatory comprehensive donation education programs and dedicated physician specialists may be beneficial in critical care units aiming to increase donation rates.

Cornea Procurement and Processing up to 72 Hours: No Risk for Cornea Transplant Quality

Background

The realization of tissue donations is bound to a tight timeframe. Depending on the type of tissue, time limits are specified within which the donation must be procured and processed. Otherwise, there is a risk of tissue quality loss with increasing time intervals from cardiovascular arrest. According to the European Directorate for the Quality of Medicines and HealthCare (EDQM) guide, cornea must be procured and processed within 72 h after death. The question arises whether this time interval has an influence on the quality of transplanted tissues and how it affects the accomplishment of tissue donations.

Methods

In order to obtain information on this, the numbers of tissue donations in the network of the German Society for Tissue Transplantation (DGFG) were evaluated as a function of the death to retrieval time (DRT) as well as the death to preservation time (DPT). For this purpose, 21,454 database entries of cornea donations made in the period from 2014 to 2018 were included.

Results

The results show that nearly 50% of donations realized in the DGFG network could be processed only 48 h or later after cardiovascular death due to the opt-in regulation in Germany. For these donations, there seems to be a higher discard rate compared to donations taken earlier. Nevertheless, there is a transplantation rate for these grafts of more than 65%, which is comparable to average transplantation rates stated in the literature.

Conclusion

All corneas finally selected for transplantation must meet the specified quality parameters. Since this naturally also applies to transplants that could only be procured at later time points, it can be concluded that DPT up to 72 h for corneal tissue is adequate and has no influence on the quality of corneas that are ultimately transplanted.

Post mortem tissue donation in the Netherlands: a nationwide approach

In this article we describe the organization of post mortem tissue donation in the Netherlands, the average number of tissue donors procured during the years 2015-2019 and the main challenges we face to improve this number. Licensed by the Dutch Ministry of Health, the Dutch Transplant Foundation (NTS) plays a central role in the organization of tissue donation. The NTS works closely with the Dutch hospitals, two tissue banks and a procurement organization. Potential tissue donors are reported to the NTS 24/7. After consulting the Donor Register and relatives give consent for donation, donors are subject to a thorough medical evaluation. If no medical contraindication is mentioned, the donor is approved for tissue donation. Each year, tissues of an average of 1918 donors (112.1 donors Per Million Population) are procured. After procurement of tissues, donor blood and tissues are tested on virology and quality respectively. Based on the test results and the assessment of potential disease transmission, tissues can either be released for transplantation or discarded. In conclusion, the Netherlands has developed a uniform, nationwide approach for safe and efficient post mortem tissue donation in which the NTS plays a central role. In the past 5 years, tissues from a considerable number of donors are procured. The NTS will continue to work together with their partners, by stimulating donor recognition, registration of the donor will, relatives' informed consent and by extending donor selection criteria, for an even more efficient way to help patients on the waiting list for a transplantation.

Risks Posed to Corneal Transplant Recipients by COVID-19-Affected Donors

The recent emergence of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its resultant human disease, COVID-19, will likely have a significant impact on the corneal tissue donor pool. Current recommendations from the United States and global eye bank associations call for the outright avoidance of tissues from donors recently infected with or exposed to COVID-19. This conservative recommendation is currently appropriate given the reported ocular sequelae, tear film viral detectability, and transmissibility of COVID-19. However, the rapidly increasing global prevalence and mortality of COVID-19 threatens the tenability of current tissue exclusion guidelines, and may necessitate their relaxation in the near future.

Improving recognition of potential tissue donors: a quality improvement project by a hospitalist in training in The Hague, The Netherlands

The number of tissue donations decreased in The Netherlands over recent years. The aim of this project was to determine the number of missed tissue donors in the Haaglanden Medical Centre and to develop a strategy to improve the number of tissue donors. We retrospectively analyzed patient files of all deceased patients in 2014 for their potential as tissue donors. Our objectives were to determine the number of missed tissue donors and the percentage of correctly identified tissue donors among all physicians and hospitalists in training. In addition, a clinical audit and three focus group interviews were used to determine the level of knowledge about and adherence to local and national protocols. The findings enabled us to suggest national and local improvements to reduce the percentage of missed tissue donors. The number of missed tissue donors was 94 (17.2%) of 548 deceased patients in 2014. The percentage of correctly identified tissue donors was 65.7% among all physicians (Cohen's Kappa coefficient 0.557, p ≤ 0.001) and 57.1% among hospitalists in training (Cohen's Kappa coefficient 0.492, p ≤ 0.001). In 31 patients (32.4%), the reported contra-indication by physicians was not a contra-indication for tissue donation in The Netherlands. There was no statistical difference in correct identification between physicians and hospitalists in training (p = 0.321, Mann-Whitney). The most effective actions to increase the number of tissue donations include to better inform physicians about contra-indications and help them in the recognition of a tissue donor.

Organ and tissue donation in a regional paediatric intensive care unit: evaluation of practice

Approximately 2% of those on the organ transplant list in the UK are children. Early identification of donors and referral to organ donation teams (ODT) has proven to increase both the success rate of gaining consent and the number of organs actually retrieved. To evaluate the practice relating to organ donation for children receiving end-of-life care on a paediatric intensive care unit (PICU) measured against the National Guidelines. All children 0-18 who received their end-of-life care and died on the PICU. A retrospective cohort study of organ donation patterns including referral, approach, consent and donation. This involved a review of case notes on PICU between the years 2009 and 2014. One hundred five deaths were identified and 100 notes were examined and data analysed to ascertain if religion, age and length of stay on PICU impacted on practice. Eighty-six children met the early identification criteria for potential donors, 40 (46.5%) children were referred to the ODT and 33 (38.3%) families were approached regarding donation. Twenty-one (24.4%) families consented to donation. Seventeen donations took place with a total of 41 sets of organs/tissues retrieved. Despite the majority of children meeting early identification for potential donors, many were not being referred.

CONCLUSIONS

All children on end-of-life care should be referred for potential organ donation. Organ donation needs to be seen as a priority for hospitals as a part of routine end-of-life care to help increase referral rates and give families the opportunity to donate. Many paediatric deaths are not referred for consideration of organ donation, despite guidelines stating that this process should be standard of care. Further optimization of referral rates may aid in increasing the number of organs available for donation. What is Known: • Shortage of organs continues to be a national problem. • NICE guidelines state that all patients who are on end-of-life care should have the option of organ donation explored. • Required referral both increases the number of donors and organs donated. What is New: • The process of identifying and referring children for paediatric organ donation. • Identifies that children are still not being referred for organ donation. • Organ donation is still not a priority for hospitals.

Literature overview highlights lack of paediatric donation protocols but identifies common themes that could guide their development

AIM

Paediatric donation is a unique and extremely sensitive process that requires specific knowledge and competencies. Most countries use protocols for organ and tissue donation to ensure optimal care for the donor and family, but these mainly focus on adults. However, the donation process for children differs from adults in many ways. An overview of the literature was performed to identify protocols for the paediatric population.

METHODS

PubMed, Web of Science, EMBASE and the Internet were searched up to March 2016 for papers or other sources in English related to specific organ and tissue donation protocols for children and neonates. This comprised title, abstract and then full-text screening of relevant data.

RESULTS

We included 12 papers and two electronic sources that were mainly from North America and Europe. Most discussed donations after cardiac death. The recurring themes included identifying potential donors, approaching parents, palliative care and collaboration with organ procurement organisations. Most papers called for paediatric donation policies to be standardised.

CONCLUSION

Scientific publications in English on paediatric donation protocols are very scarce. No comprehensive paediatric donation protocol was found. We identified several recurring themes in the literature that could be used to develop such protocols.

[Influence of the donor age on graft survival : Is the demographic change also important for corneal tissue donation?]

The success of corneal transplantation highly depends on the quality of the used graft. Various factors play a crucial role such as a perfect stroma without optically relevant, centrally located cloudiness or changes (e. g. scars) or an adherent Descemet membrane. One of the most important parameters is the quality of the endothelial cell layer with a sufficiently large endothelial cell count. An open question is so far whether the donor age affects corneal quality and therefore has an impact on the success of transplantation. A comprehensive review of the available literature revealed that a large amount of scientific data on the influence of donor age exist to answer this question. In a variety of studies, no significant dependence of graft quality of donor age could be detected. Rather the studies prove that graft survival depends primarily on the state of the endothelial cell layer, and postoperative endothelial cell loss must be considered as a major cause of graft failure. Extensive quality assurance procedures in tissue preparation and cornea processing in the eye banks in Germany (Europe) ensures that only corneas with tested high quality are allocated for transplantation regardless of the donor age. Against the background of an aging population, the use of grafts from older donors should not be waived.

Distribution of potential eye and tissue donors within an Australian teaching hospital

Eye and Tissue donation has the capacity to transform lives, yet the vast majority of potential in-hospital donors are not recognised. Studies which describe the relative importance of specific units or wards in determining the size of the donor pool are limited. The aim of this study was to map the distribution of potential Eye and Tissue donors within the study hospital. A 12-month retrospective analysis of all patient deaths at the study hospital was undertaken. The ability to donate corneal, heart valve, bone and skin tissue was investigated. Patients were classified as potential donors if they met specific age criteria and had an absence of contraindications based on electronic database search. There were 985 deaths during the study period. Deaths occurred under the care of 26 separate clinical units, and within 28 unique wards and treatment spaces. Four hundred and forty nine (45.6%) patients were identified as potential eye or tissue donors. The majority of potential donors occurred in ICU, Emergency and palliative care units. Of the subset of 328 deaths ≤ 70 years, the frequency of potential tissue donors was 55% (n = 181). ED and ICU had significantly higher frequencies of potential donor than other wards (86 and 77%, p < 0.01). The current study has identified the ED, ICU and PCUs are being important sites for potential Eye and Tissue Donors within our hospital. These will provide an important focus for future interventions to improve the rate of eye and tissue donation.

Fresh osteochondral allografts-procurement and tissue donation in Europe

Fresh osteochondral allografts are a well-established treatment for large, full-thickness cartilage defects. The clinical outcome for carefully selected patients is very favorable, especially for the young and active and graft survival up to 25 years has been described in the literature. Furthermore, a high patient satisfaction rate has been reported, but the biggest obstacle to overcome is the availability of tissue for transplantation. Large fresh bone allografts for cartilage damage repair only can be harvested from organ donors following organ removal or cadaveric donors, preferably in the setting of an operation room to minimize possible contamination of the tissue. Apart from the logistic challenges this entails, an experienced recovery team is needed. Furthermore, the public as well as medical staff is much less aware of the possibility and requirements of tissue donation than organ donation and families of deceased are rarely approached for bone and cartilage donation. This review aims to highlight the current situation of organ and tissue donation in Europe with special focus on the processing of bones and possible safety and quality concerns. We analyze what may prevent consent and what might be done to improve the situation of tissue donation.

"Why throw away something useful?": Attitudes and opinions of people treated for bipolar disorder and their relatives on organ and tissue donation

In regard to mental illness, brain donation is essential for the biological investigation of central pathology. Nevertheless, little is known about the thoughts of people with mental disorders on tissue donation for research. Here, our objective was to understand the attitudes and opinions of people treated for bipolar disorder and their relatives regarding donation in general, and particularly donation for research. This is a qualitative study that used in-depth interviews to determine the thoughts of participants regarding tissue donation for research. Theoretical sampling was used as a recruitment method. Grounded theory was used as a framework for content analyses of the interviews. A semi-structured interview guide was applied with the topics: donation in general; donation for research; mental health and body organs; opinion regarding donation; feelings aroused by the topic. Although all participants were aware of organ donation for transplant, they were surprised that tissue could be donated for research. Nevertheless, once they understood the concept they were usually in favor of the idea. Although participants demonstrated a general lack of knowledge on donation for research, they were willing to learn more and viewed it as a good thing, with altruistic reasons often cited as a motive for donation. We speculate that bridging this knowledge gap may be a fundamental step towards a more ethical postmortem tissue donation process.

Disinfection of human musculoskeletal allografts in tissue banking: a systematic review

Musculoskeletal allografts are typically disinfected using antibiotics, irradiation or chemical methods but protocols vary significantly between tissue banks. It is likely that different disinfection protocols will not have the same level of microorganism kill; they may also have varying effects on the structural integrity of the tissue, which could lead to significant differences in terms of clinical outcome in recipients. Ideally, a disinfection protocol should achieve the greatest bioburden reduction with the lowest possible impact on tissue integrity. A systematic review of three databases found 68 laboratory and clinical studies that analyzed the microbial bioburden or contamination rates of musculoskeletal allografts. The use of peracetic acid–ethanol or ionizing radiation was found to be most effective for disinfection of tissues. The use of irradiation is the most frequently published method for the terminal sterilization of musculoskeletal allografts; it is widely used and its efficacy is well documented in the literature. However, effective disinfection results were still observed using the BioCleanse™ Tissue Sterilization process, pulsatile lavage with antibiotics, ethylene oxide, and chlorhexidine. The variety of effective methods to reduce contamination rate or bioburden, in conjunction with limited high quality evidence provides little support for the recommendation of a single bioburden reduction method.

Disinfection of human cardiac valve allografts in tissue banking: systematic review report

Cardiovascular allografts are usually disinfected using antibiotics, but protocols vary significantly between tissue banks. It is likely that different disinfection protocols will not have the same level of efficacy; they may also have varying effects on the structural integrity of the tissue, which could lead to significant differences in terms of clinical outcome in recipients. Ideally, a disinfection protocol should achieve the greatest bioburden reduction with the lowest possible impact on tissue integrity. We conducted a systematic review of methods applied to disinfect cardiovascular tissues. The use of multiple broad spectrum antibiotics in conjunction with an antifungal agent resulted in the greatest reduction in bioburden. Antibiotic incubation periods were limited to less than 24 h, and most protocols incubated tissues at 4 °C, however one study demonstrated a greater reduction of microbial load at 37 °C. None of the reviewed studies looked at the impact of these disinfection protocols on the risk of infection or any other clinical outcome in recipients.

Disinfection of human skin allografts in tissue banking: a systematic review report

The use of skin allografts to temporarily replace lost or damaged skin is practiced worldwide. Naturally occurring contamination can be present on skin or can be introduced at recovery or during processing. This contamination can pose a threat to allograft recipients. Bacterial culture and disinfection of allografts are mandated, but the specific practices and methodologies are not dictated by standards. A systematic review of literature from three databases found 12 research articles that evaluated bioburden reduction processes of skin grafts. The use of broad spectrum antibiotics and antifungal agents was the most frequently identified disinfection method reported demonstrating reductions in contamination rates. It was determined that the greatest reduction in the skin allograft contamination rates utilized 0.1 % peracetic acid or 25 kGy of gamma irradiation at lower temperatures.

Using Mixed Methods to Examine Perceptions and Willingness to Participate in Bio-specimen Banking in Diverse Asian Americans

Background

On a large scale, bio-specimen banking offers researchers the ability to newly understand areas like community genetics and to apply new sampling technologies to housed samples. Understanding cultural differences in knowledge and perceptions of bio-specimen banking allows for addressing community concerns and facilitates dissemination of culturally relevant health education.

Methods

Community-based participatory approaches (CBPA) provide opportunities to solicit community input and to build mechanisms for maximizing outcomes of potential interventions. As part of a larger CBPA project, Chinese, Korean, and Vietnamese community members participated in eight focus groups on bio-specimen banking. Demographics and qualitative text were analyzed.

Results

The study results indicate that education and English proficiency were the most important predictors of knowledge of bio-specimen banking. Ethnic and age differences also were identified as predictors of knowledge in bivariate analyses. Participants discussed safety in bio-specimen sample collection procedures; processes of tissue removal, including spinal and blood draws; privacy protection; trust in healthcare providers; concerns about genetic research; importance of contributing to science; and family concerns.

Conclusion

The diversity of Asian American populations requires that, to increase participation in bio-specimen banking, understanding and addressing community concerns requires health education efforts that improve knowledge of innovations in sampling and cultural tailoring of health education messages. Promotion messages should highlight scientific benefits including possibilities for tailoring medical treatment and new diagnoses. Issues of health information privacy and stigma for communities at risk for certain diseases remain community worries.

Validation of Serological Testing for Anti-Treponema pallidum from Postmortem Blood on the Siemens-BEP(®)-III Automatic System

BACKGROUND

Infectious disease marker testing is obligatory for the release of human tissue for transplantation. Most CE-marked tests are not validated for postmortem blood. In a previous study we have validated the testing for anti-HIV-1/2, anti-HCV, HBsAg, and anti-HBc. Here, we present the validation of testing for antibodies against T. pallidum, which is the last marker obligatory for tissue release for transplantation.

METHODS

17 samples of postmortem sera and 10 samples of both pre-und postmortem sera were obtained from cornea donors and tested for anti-T. pallidum on the Siemens-BEP-III-System. These sera were spiked with anti-T. pallidum-positive standard sera in concentrations which give low- and high-positive results at the respective dilution.

RESULTS

Two of the unspiked postmortem sera were false-positive most likely due to intense hemolysis (free hemoglobin > 50 mg/dl). Of the 25 negative postmortem sera, none of the spiked samples was false-negative after 0, 24 and 60 h.

CONCLUSION

There is no indication that postmortem samples give false-negative or false-positive results with the test system and test kits used in cases of low hemolysis. The procedure described might serve as a model for validating other test kits on postmortem samples.

Stakeholder perceptions of thoracic rapid tissue donation: An exploratory study

Rapid autopsy or rapid tissue donation (RTD) is a novel method of tissue procurement in which 'fresh' tissue is collected within 2-6 h following the death of a patient. While the use of RTD offers many opportunities to develop new therapies for lung cancer patients, it raises ethical concerns. The purpose of this study was to examine knowledge, perceptions and ethical concerns about recruiting patients for an RTD program. To achieve research goals, we conducted six focus groups, each containing 5-10 participants (N = 38). Participants were cancer patients (n = 17) their caregivers (n = 6), physicians (n = 6) and clinic staff (n = 9) from the Thoracic Oncology Program at Moffitt Cancer Center, in Tampa, Florida, USA. All focus groups were audio-recorded and conducted using a semi-structured focus group guide. The transcripts were analyzed using hand-coding methods. Data were coded independently by at least two researchers, and an inter-rater reliability rate of ≥90% was achieved. Knowledge about RTD was low among all groups, with physicians having slightly higher knowledge; all groups agreed that RTD offered major benefits to cancer research; physicians and clinic staff were mainly concerned about making a patient feel uncomfortable and reducing hope, while, patients and family members were more concerned about logistics and how the family would be affected during tissue retrieval. All groups agreed the physician was the appropriate person to begin a discussion about RTD and that recruitment should be individualized. All groups reported that physician training is necessary, as well as an awareness campaign for patients and families to be more receptive about RTD. The results of this study suggested more education is needed for all stakeholders to learn about RTD prior to the initiation of a research program. Our approach of querying all stakeholders provides a firm foundation for future training modules regarding RTD programs in lung cancer.

Regional experiences of tissue donation and forensic medicine in hamburg - results of a 5-year period

OBJECTIVE

We present the operational organization and daily workflow of our Hamburg model and the results of the years 2007-2011 concerning donation of corneas, musculoskeletal and, since 2010, cardiovascular tissues.

METHODS

Each of the about 3,600 deceased every year undergoes an evaluation process by two coordinators on duty, the tissue coordinator and the family coordinator. All donation connected issues are carried out within the standardized protocols of a quality management system and documented in a special data base. Two catamnestic surveys evaluated the satisfaction of donor families retrospectively. The inclusion rate for cornea donation was 23% and for musculoskeletal donation 10%, with a decrease after the 75 years age restriction of musculoskeletal donors in 2011 defined by the contracting tissue bank German Institute for Cell and Tissue Replacement gGmbH (DIZG), Berlin.

RESULTS

Since 2007 1,268 corneas were explanted altogether, reflecting an increasing explantation rate from 156 (University Medical Center Hamburg-Eppendorf (UMC: 9) in 2007 up to 304 (UMC: 52) in 2011. Overall 173 musculoskeletal donors (5 years) and 11 cardiovascular donors (2 years) spent tissues. The consent rate was much higher. The evaluation of the families reflected a positive feedback for the guiding of the donation process.

CONCLUSION

Forensic institutes can act as an interface between donors and recipients without neglecting forensic investigations. They are uniquely positioned to recognize potential donors. In addition, the contact with a physician of the forensic institute may help families during the mourning phase.

Validation of Virus NAT for HIV, HCV, HBV and HAV Using Post-Mortal Blood Samples

OBJECTIVE

Commercial available NAT systems are usually not validated for screening of post-mortem blood samples. NAT testing might be challenging due to inhibitory substances in the cadaveric blood sample that cause false-negative test results. Validation studies have to be performed to show the performance characteristics of the NAT assays for testing cadaveric blood.

METHODS

A set of 32 post-mortem serum and plasma samples from cornea donors and 40 control samples from blood donors, serologically and NAT negative for all investigated parameters, were spiked with defined concentrations of WHO reference material and tested for HIV-1, HCV, HBV, and HAV by NAT using DRK Baden-Württemberg-Hesse CE PCR kits. Analytical sensitivity, analytical specificity and reproducibility/precision were validated and compared with each other in both groups of samples.

RESULTS

The analytical sensitivity was 100% for control and post-mortem specimens when spiked with virus standards at concentrations of 3 × level of detection (LOD). Invalid results did not occur. The analytical specificity rate for all assays was 100%. Intra-assay variation was analyzed as a function of sample material and sampling time post mortem. Values of % coefficient of variation (%CV) were comparable for serum and plasma but slightly higher for post-mortem samples especially for those samples collected more than 24 h post mortem.

CONCLUSION

Based on the presented validation, postmortem donor samples can be tested with the automated DRK Baden-Würtemberg-Hesse NAT system.