Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 112
Filtrar
1.
Hepatology ; 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38536021

RESUMO

The liver transplantation (LT) evaluation and waitlisting process is subject to variations in care that can impede quality. The American Association for the Study of Liver Diseases (AASLD) Practice Metrics Committee (PMC) developed quality measures and patient-reported experience measures along the continuum of pre-LT care to reduce care variation and guide patient-centered care. Following a systematic literature review, candidate pre-LT measures were grouped into 4 phases of care: referral, evaluation and waitlisting, waitlist management, and organ acceptance. A modified Delphi panel with content expertise in hepatology, transplant surgery, psychiatry, transplant infectious disease, palliative care, and social work selected the final set. Candidate patient-reported experience measures spanned domains of cognitive health, emotional health, social well-being, and understanding the LT process. Of the 71 candidate measures, 41 were selected: 9 for referral; 20 for evaluation and waitlisting; 7 for waitlist management; and 5 for organ acceptance. A total of 14 were related to structure, 17 were process measures, and 10 were outcome measures that focused on elements not typically measured in routine care. Among the patient-reported experience measures, candidates of LT rated items from understanding the LT process domain as the most important. The proposed pre-LT measures provide a framework for quality improvement and care standardization among candidates of LT. Select measures apply to various stakeholders such as referring practitioners in the community and LT centers. Clinically meaningful measures that are distinct from those used for regulatory transplant reporting may facilitate local quality improvement initiatives to improve access and quality of care.

2.
Ann Surg ; 279(3): 429-436, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37991182

RESUMO

OBJECTIVE: To characterize the current state of mental health within the surgical workforce in the United States. BACKGROUND: Mental illness and suicide is a growing concern in the medical community; however, the current state is largely unknown. METHODS: Cross-sectional survey of the academic surgery community assessing mental health, medical error, and suicidal ideation. The odds of suicidal ideation adjusting for sex, prior mental health diagnosis, and validated scales screening for depression, anxiety, post-traumatic stress disorder (PTSD), and alcohol use disorder were assessed. RESULTS: Of 622 participating medical students, trainees, and surgeons (estimated response rate=11.4%-14.0%), 26.1% (141/539) reported a previous mental health diagnosis. In all, 15.9% (83/523) of respondents screened positive for current depression, 18.4% (98/533) for anxiety, 11.0% (56/510) for alcohol use disorder, and 17.3% (36/208) for PTSD. Medical error was associated with depression (30.7% vs. 13.3%, P <0.001), anxiety (31.6% vs. 16.2%, P =0.001), PTSD (12.8% vs. 5.6%, P =0.018), and hazardous alcohol consumption (18.7% vs. 9.7%, P =0.022). Overall, 13.2% (73/551) of respondents reported suicidal ideation in the past year and 9.6% (51/533) in the past 2 weeks. On adjusted analysis, a previous history of a mental health disorder (aOR: 1.97, 95% CI: 1.04-3.65, P =0.033) and screening positive for depression (aOR: 4.30, 95% CI: 2.21-8.29, P <0.001) or PTSD (aOR: 3.93, 95% CI: 1.61-9.44, P =0.002) were associated with increased odds of suicidal ideation over the past 12 months. CONCLUSIONS: Nearly 1 in 7 respondents reported suicidal ideation in the past year. Mental illness and suicidal ideation are significant problems among the surgical workforce in the United States.


Assuntos
Alcoolismo , Suicídio , Humanos , Estados Unidos/epidemiologia , Saúde Mental , Alcoolismo/epidemiologia , Alcoolismo/psicologia , Estudos Transversais , Fatores de Risco , Ideação Suicida , Depressão/epidemiologia , Depressão/psicologia
3.
Liver Transpl ; 30(8): 775-784, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38190240

RESUMO

Donation after circulatory death (DCD) donors now represent over 30% of the deceased donor pool in the United States. Compared to donation after brain death, DCD is less likely to result in transplantation. For each potential donor whose organs cannot be utilized for transplantation (ie, dry run), fees are associated with the attempted donation, which add to the overall costs of organ acquisition. To better characterize the true costs of DCD liver acquisition, we performed a cost comparison of the fees associated with organ acquisition for DCD versus donation after brain death at a single transplant institute that comprises 2 liver transplant centers. Cost, recipient, and transportation data for all cases, including fees associated with liver acquisition from July 1, 2019, to October 31, 2021, were collected. We found that the total cost of DCD liver acquisition per liver transplant was $15,029 more than that for donation after brain death donation, with 18% of the costs of the DCD transplant attributed to dry runs. Overall, the costs associated with DCD transplantation accounted for 34.5% of the total organ acquisition costs; however, DCD transplantation accounted for 30.3% of the transplantation volume. Because the expansion of DCD is essential to increasing the availability of liver grafts for transplantation, strategies need to be implemented to decrease the costs associated with dry runs, including using local recovery, transferring donors to hospitals close to transplant centers, and performing more prerecovery organ analysis. Moreover, these strategies are needed to ensure that financial disincentives to DCD procurement and utilization do not reverse the gains made by expanding the organ donor pool using machine perfusion technologies.


Assuntos
Morte Encefálica , Transplante de Fígado , Doadores de Tecidos , Obtenção de Tecidos e Órgãos , Humanos , Transplante de Fígado/economia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/estatística & dados numéricos , Transplante de Fígado/métodos , Obtenção de Tecidos e Órgãos/economia , Obtenção de Tecidos e Órgãos/métodos , Doadores de Tecidos/provisão & distribuição , Doadores de Tecidos/estatística & dados numéricos , Estados Unidos , Masculino , Feminino , Pessoa de Meia-Idade , Adulto
4.
Clin Transplant ; 38(4): e15297, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38545915

RESUMO

INTRODUCTION: Normothermic regional perfusion (NRP) represents an innovative technology that improves the outcomes for liver and kidney recipients of donation after circulatory determination of death (DCD) organs but protocols for abdominal-only NRP (A-NRP) DCD are lacking in the US. METHODS: We describe the implementation and expansion strategies of a transplant-center-based A-NRP DCD program that has grown in volume, geographical reach, and donor acceptance parameters, presented as four eras. RESULTS: In the implementation era, two donors were attempted, and one liver graft was transplanted. In the local expansion era, 33% of attempted donors resulted in transplantation and 42% of liver grafts from donors who died within the functional warm ischemic time (fWIT) limit were transplanted. In the Regional Expansion era, 25% of attempted donors resulted in transplantation and 50% of liver grafts from donors who died within the fWIT limit were transplanted. In the Donor Acceptance Expansion era, 46% of attempted donors resulted in transplantation and 72% of liver grafts from donors who died within the fWIT limit were transplanted. Eight discarded grafts demonstrated a potential opportunity for utilization. CONCLUSION: The stepwise approach to building an A-NRP program described here can serve as a model for other transplant centers.


Assuntos
Preservação de Órgãos , Obtenção de Tecidos e Órgãos , Humanos , Preservação de Órgãos/métodos , Perfusão/métodos , Doadores de Tecidos , Morte , Sobrevivência de Enxerto
5.
Curr Opin Organ Transplant ; 29(3): 200-204, 2024 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-38465664

RESUMO

PURPOSE OF REVIEW: Normothermic regional perfusion (NRP) is a novel procurement technique for donation after circulatory death (DCD) in the United States. It was pioneered by cardiothoracic surgery programs and is now being applied to abdominal-only organ donors by abdominal transplant programs. Multiple technical approaches can be used for abdominal-only NRP DCD donors and this review describes these techniques. RECENT FINDINGS: NRP has been associated with higher utilization of organs, particularly liver and heart grafts, from DCD donors and with better recipient outcomes. There are lower rates of delayed graft function in kidney transplant recipients and lower rates of ischemic cholangiopathy in liver transplant recipients. These benefits are driving increased interest from abdominal transplant programs in using NRP for DCD procurements. SUMMARY: This paper describes the technical aspects of NRP DCD that allow for maximization of its use based on different donor and policy characteristics.


Assuntos
Transplante de Fígado , Preservação de Órgãos , Perfusão , Doadores de Tecidos , Humanos , Perfusão/métodos , Perfusão/efeitos adversos , Perfusão/instrumentação , Doadores de Tecidos/provisão & distribuição , Preservação de Órgãos/métodos , Preservação de Órgãos/efeitos adversos , Transplante de Fígado/métodos , Transplante de Fígado/efeitos adversos , Obtenção de Tecidos e Órgãos , Transplante de Órgãos/métodos , Seleção do Doador , Transplante de Rim/métodos , Transplante de Rim/efeitos adversos
6.
Curr Opin Organ Transplant ; 29(3): 175-179, 2024 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-38506730

RESUMO

PURPOSE OF REVIEW: Normothermic regional perfusion (NRP) is a novel procurement technique for donation after circulatory death (DCD) in the United States. It was pioneered by cardiothoracic surgery programs and is now being applied to abdominal-only organ donors by abdominal transplant programs. RECENT FINDINGS: Liver and kidney transplantation from thoracoabdominal NRP (TA-NRP) donors in the United States was found to have lower rates of delayed kidney graft function and similar graft and patient survival versus recipients of cardiac super rapid recovery (SRR) DCD donors. The excellent outcomes with NRP have prompted the expansion of NRP technology to abdominal transplant programs. SUMMARY: Excellent early outcomes with liver and kidney transplantation have prompted the growth of NC-NRP procurement for abdominal-only DCD donors across the US, and now requires standardization of technical and nontechnical aspects of this procedure.


Assuntos
Transplante de Rim , Transplante de Fígado , Perfusão , Doadores de Tecidos , Humanos , Perfusão/tendências , Perfusão/métodos , Perfusão/efeitos adversos , Estados Unidos , Transplante de Rim/tendências , Transplante de Rim/efeitos adversos , Transplante de Fígado/tendências , Transplante de Fígado/efeitos adversos , Transplante de Fígado/métodos , Doadores de Tecidos/provisão & distribuição , Sobrevivência de Enxerto , Resultado do Tratamento , Preservação de Órgãos/tendências , Preservação de Órgãos/métodos , Obtenção de Tecidos e Órgãos/tendências
7.
Am J Transplant ; 23(2): 265-271, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36695701

RESUMO

Uterus transplantation is a growing field, but little is known about living uterus donors' perceptions of informed consent or their decision-making processes. This study used semistructured interviews to collect information regarding uterus donors' experiences with uterus donation, perceptions of the informed consent process, and information on how they decided to pursue uterus donation. Interviews were coded for thematic analysis. Three major themes emerged in this study. First, the decision-making process was based on individuals' motivations, rationale, and considerations of alternative contributions to help other women with infertility. Second, participants described how they felt about the process of informed consent, their decision-making processes, and how their experiences compared with their expectations. Third, participants discussed how uterus donation was a valuable experience. This study found that living uterus donors are motivated to give another woman the opportunity to experience pregnancy and childbirth. They were satisfied with the informed consent process, their experiences were in line with their expectations, and the value of uterus donation was associated with the act of donation itself. Our findings suggest that living donor uterus programs should develop robust informed consent processes that provide detailed information about uterus donation and encourage shared decision-making with potential uterus donors.


Assuntos
Transplante de Rim , Doadores Vivos , Humanos , Feminino , Consentimento Livre e Esclarecido , Pesquisa Qualitativa , Motivação , Útero
8.
Am J Transplant ; 23(7): 987-995, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37088143

RESUMO

Standard US practice for donation after circulatory death (DCD) abdominal organ procurement is superrapid recovery (SRR). A newer approach using thoracoabdominal normothermic regional perfusion (TA-NRP) shows promise for better recipient outcomes for all organs, but there are few reports of abdominal recipient outcomes from TA-NRP donors. We used the United Network for Organ Sharing data to identify all cardiac DCD donors from October 1, 2020, to May 20, 2022, and categorized them by recovery procedure (SRR vs TA-NRP). We then identified all liver, kidney, and pancreas recipients of these donors for whom 6-month outcome data were available and compared patient and graft survival, kidney delayed graft function (DGF), and biliary complications between TA-NRP DCD and SRR DCD organ recipients. Patient and graft survival did not differ significantly between groups for either kidney or liver recipients. Significantly fewer TA-NRP kidney recipients developed DGF (12.7% [15/118] vs 42.0% [84/200], P <.001), and TA-NRP and pumped kidneys had lower odds for DGF on multivariate analysis. No liver recipients in either group had biliary complications or were relisted for transplantation for ischemic cholangiopathy. Although long-term outcomes need to be investigated, our early results show similar outcomes for recipients of TA-NRP DCD abdominal organs versus recipients of SRR DCD abdominal organs. We believe that TA-NRP is an effective approach to expand the use of DCD organs.


Assuntos
Obtenção de Tecidos e Órgãos , Transplantados , Humanos , Estudos Retrospectivos , Preservação de Órgãos/métodos , Doadores de Tecidos , Perfusão/métodos , Sobrevivência de Enxerto , Morte
9.
Am J Transplant ; 23(9): 1290-1299, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37217005

RESUMO

In June 2022, the US Food and Drug Administration Center for Biologics Evaluation and Research held the 73rd meeting of the Cellular, Tissue, and Gene Therapies Advisory Committee for public discussion of regulatory expectations for xenotransplantation products. The members of a joint American Society of Transplant Surgeons/American Society of Transplantation committee on xenotransplantation compiled a meeting summary focusing on 7 topics believed to be key by the committee: (1) preclinical evidence supporting progression to a clinical trial, (2) porcine kidney function, (3) ethical aspects, (4) design of initial clinical trials, (5) infectious disease issues, (6) industry perspectives, and (7) regulatory oversight.


Assuntos
Motivação , Cirurgiões , Estados Unidos , Animais , Suínos , Humanos , Transplante Heterólogo , United States Food and Drug Administration
10.
Liver Transpl ; 2023 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-38009866

RESUMO

Liver transplantation (LT) for alcohol-associated hepatitis (AH) remains controversial due to concerns about candidate selection subjectivity, post-LT alcohol relapse, and the potential exacerbation of LT disparities. Our aim was to design, perform, and examine the results of a simulated selection of candidates for LT for AH. Medical histories, psychosocial profiles and scores, and outcomes of 4 simulation candidates were presented and discussed at 2 multidisciplinary societal conferences with real-time polling of participant responses. Candidate psychosocial profiles represented a wide spectrum of alcohol relapse risk. The predictive accuracy of four psychosocial scores, Dallas consensus criteria, sustained alcohol use post-LT, Stanford Integrated Psychosocial Assessment for Transplant, and QuickTrans, were assessed. Overall, 68 providers, mostly academic transplant hepatologists, participated in the simulation. Using a democratic process of selection, a significant majority from both simulations voted to accept the lowest psychosocial risk candidate for LT (72% and 85%) and decline the highest risk candidate (78% and 90%). For the 2 borderline-risk candidates, a narrower majority voted to decline (56% and 65%; 64% and 82%). Two out of 4 patients had post-LT relapse. Predictive accuracies of Dallas, Stanford Integrated Psychosocial Assessment for Transplant, and Quicktrans scores were 50%, while sustained alcohol use post-LT was 25%. The majority of voting outcomes were concordant with post-LT relapse in 3 out of 4 patients. When defining "success" in LT for AH, providers prioritized allograft health and quality of life rather than strict abstinence. In this simulation of LT for AH using a democratic process of selection, we demonstrate its potential as a learning model to evaluate the accuracy of psychosocial scores in predicting post-LT relapse and the concordance of majority voting with post-LT outcomes. Provider definitions of "success" in LT for AH have shifted toward patient-centered outcomes.

11.
Perspect Biol Med ; 66(1): 195-209, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38662016

RESUMO

This article provides an in-depth ethical analysis of living donor uterus transplantation, incorporating clinical, psychological, and qualitative study data into the discussion. Although the concept of living organ donors as patients in their own right has not always been present in the field of transplantation, this conceptualization informs the framework for living donor ethics that we apply to living uterus donation. This framework takes root in the principles of research ethics, which include respect for persons, beneficence, and justice. It incorporates an analysis based on eight potential vulnerabilities of living donors: capacitational, juridic, deferential, social, medical, situational, allocational, and infrastructural. Finally, it recognizes that special relationships-such as that of the living donor advocate with the potential donor-require special responsibilities, including identifying vulnerabilities and engaging donors in a shared decision-making process. Directed and non-directed uterus donors require separate ethical analyses because their different relationships with recipients will influence the types of vulnerabilities, they are subject to as well as the potential benefits they may gain from donation.


Assuntos
Doadores Vivos , Útero , Humanos , Feminino , Útero/transplante , Doadores Vivos/ética , Transplante de Órgãos/ética , Obtenção de Tecidos e Órgãos/ética
12.
Eur Surg Res ; 64(2): 158-168, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36623496

RESUMO

BACKGROUND: Uterus transplantation (UTx) has come of age in the 21st century, building on the 20th century developments in vascular anastomosis and effective immunosuppressive protocols that have enabled solid organ transplantation to become the life-extending and life-improving treatment option we know today. However, UTx has the goal of enabling reproduction, meaning that research has focused on establishment of pregnancy and healthy live birth in addition to surgical technique and immunosuppression. SUMMARY: The Dallas Uterus Transplant Study (DUETS), established at Baylor University Medical Center in 2015, is one of four UTx programs in the USA, and it holds the distinction of being home not only to the first US live birth but also the highest volume UTx program worldwide, with 23 uterus transplants performed to date, resulting in 15 live births. Innovations pioneered at our center span all aspects of the UTx process, all seeking to improve success for recipients in terms of achieving pregnancy and live birth, while also minimizing the burden on donors and recipients. They have included the following: (1) a deceased donor hysterectomy approach that allows the uterus to be procured prior to cross clamp; (2) proof of concept with use of only superior uterine veins after procuring both the superior and inferior uterine veins during the donor surgery, enabling the choice of the best option in terms of size and location for outflow, while also preserving ovary viability in living donors; (3) contribution to robot-assisted technique/minimally invasive technique with vaginal extraction of the uterus graft for living donor surgeries, shortening donor recovery times; (4) developing a robot-assisted technique for graft hysterectomies, improving recovery times for recipients at the end of their UTx journey; (5) refining immunosuppression protocols to enable embryo transfer as early as 3 months after induction therapy, increasing recipients' chances for achieving up to two live births during the 5 years posttransplant the UTx protocol specifies; and (6) building on our clinical trial experience to now offer UTx in the U.S. outside the setting of a clinical study. KEY MESSAGES: Our center along with others throughout the world has demonstrated that UTx can be reproducible, result in live births from both living and deceased donors, and be safely introduced as a clinical option. Due to the complexity of UTx as well as the need for long-term multidisciplinary care, centers implementing UTx should have an established abdominal transplant program, a gynecologic surgery program, high-risk obstetric and neonatal care, and institutional support and oversight, and should partner with established UTx programs for protocol development and operative proctoring.


Assuntos
Infertilidade Feminina , Gravidez , Recém-Nascido , Feminino , Humanos , Infertilidade Feminina/cirurgia , Útero/transplante , Doadores Vivos , Nascido Vivo
13.
Am J Perinatol ; 2023 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-36608701

RESUMO

OBJECTIVE: Doppler velocimetry of the uterine and umbilical arteries is used to predict preeclampsia and monitor fetal outcomes. There have been no reports of Doppler velocimetry indices in pregnancies conceived after uterus transplantation, which differ from traditional pregnancies because of different uterine vascular inflow and outflow and exposure to immunosuppressive agents. We sought to examine whether Doppler indices can be used to predict embryo transfer success after uterus transplantation and whether Doppler indices across pregnancy predict fetal growth restriction. STUDY DESIGN: This was a single-center cohort observational study of 14 uterus transplant recipients who underwent embryo transfer. Of these, 12 women successfully delivered 14 babies. Five Doppler investigations were performed within the cohort: (1) prepregnancy; (2) uterine artery assessment across pregnancy; (3) umbilical artery assessment across pregnancy; (4) successive pregnancies; and (5) fetal growth. RESULTS: Prepregnancy uterine artery Doppler indices did not correlate with successful implantation after embryo transfer. Uterine artery Doppler indices in uterus transplant recipients decreased across pregnancy as described in pregnancies without uterus transplantation. The umbilical artery systolic/diastolic velocity ratio was lower at all weeks of gestation after uterus transplantation compared with values described in pregnancies without uterus transplantation. In those women who delivered two successive babies after uterus transplant, umbilical artery Doppler indices were significantly lower during the second pregnancy. There was always forward flow throughout diastole in the umbilical arteries, and no babies experienced fetal growth restriction. CONCLUSION: In our study, uterus transplantation was not associated with abnormal blood flow indices in either the uterine or umbilical arteries. Although Doppler indices were not predictive of embryo transfer success, they supported the expectation that pregnancies after uterus transplantation at our center result in normally grown babies. KEY POINTS: · Uterus transplantation is not associated with abnormal blood flow indices.. · Prepregnancy uterine artery Doppler indices did not correlate with successful embryo implantation.. · Doppler assessment supports the expectation of normal placentation, fetal growth, and healthy live births after uterus transplantation..

14.
Curr Opin Organ Transplant ; 28(2): 133-138, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36580376

RESUMO

PURPOSE OF REVIEW: The aim of this study is to examine ethical issues raised by organ recovery from donors after circulatory death (DCD). RECENT FINDINGS: Recent technological developments and policy modifications have implications for evolving ethical issues related to DCD organ procurement and donation. We identify four such changes and discuss the most significant ethical issues raised by each: the use of cardiac perfusion machines and the need to develop criteria to allow prioritization for organ preservation in joint thoracic-abdominal procurements, normothermic regional perfusion and the irreversibility criterion in the definition of death, practice variability in DCD withdrawal of care and death declarations, and equitable access to donation, and changes in organ procurement organization evaluation metrics and transplant system resource utilization. SUMMARY: The evolution of DCD donation raises new ethical concerns that require further analysis to ensure that deceased donors, donor families and transplant recipients are treated respectfully and equitably.


Assuntos
Morte , Obtenção de Tecidos e Órgãos , Humanos , Doadores de Tecidos , Preservação de Órgãos , Perfusão
15.
Am J Transplant ; 22(5): 1311-1315, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35040263

RESUMO

The novel approach of thoracic normothermic regional perfusion (TA-NRP) for in-situ preservation of organs prior to removal presents a new series of ethical questions about donation after circulatory determination of death (DCD) procedures. This manuscript describes the framework used for the analysis of ethical acceptability of DCD donation and analyzes the specific practice of TA-NRP DCD within that framework to demonstrate that TA-NRP DCD can be performed within the ethical boundaries of DCD donation. We argue that TA-NRP DCD organ procurements meet the ethical standards of informed consent, non-maleficence, adherence to the dead donor rule, and irreversibility, and as such, are ethically acceptable. We also describe the potential benefits of TA-NRP DCD procedures that result from higher organ yields and better recipient outcomes. Finally, we call for open and transparent support of TA-NRP DCD by professional organizations as a necessary cornerstone for the advancement of TA-NRP DCD procedures.


Assuntos
Preservação de Órgãos , Obtenção de Tecidos e Órgãos , Morte , Humanos , Preservação de Órgãos/métodos , Perfusão/métodos , Doadores de Tecidos
16.
Am J Transplant ; 22(11): 2661-2667, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35822324

RESUMO

The volume of abdominal organ offers received by the Baylor Simmons Transplant Institute has increased over time, resulting in a higher workload for our donor call team. To quantify the increase in organ offers, determine the characteristics of these offers, and estimate the impact on our transplant center workload, we collected center-specific organ offer data from May 2019 to July 2021 using the UNOS Center Acceptance and Refusal Evaluation Report and performed a time study that collected the number of communications and time spent on communications for organ offers made during a typical week. The total offers per month increased by 140% (270/month to 648/month), while the number of transplanted organs remained stable. In addition, the percentage of offers for organs that were never transplanted increased from 54% to 75%. In a representative week-long time study, surgeons made 505, center coordinators 590, and answering service coordinators 318 distinct communications, averaging 3, 4, and 2 communications/hour. Between November 2019 and July 2021, offer-related workload increased by an estimated 97%. These results demonstrate a sizeable inefficiency in abdominal organ allocation associated with a nonrecoverable cost to our transplant center.


Assuntos
Obtenção de Tecidos e Órgãos , Humanos , Carga de Trabalho , Doadores de Tecidos , Rim , Fígado
17.
Am J Transplant ; 22(12): 2921-2930, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36053559

RESUMO

Accurate assessment of donor quality at the time of organ offer for liver transplantation candidates may be inadequately captured by the donor risk index (DRI). We sought to develop and validate a novel objective and simple model to assess donor risk using donor level variables available at the time of organ offer. We utilized national data from candidates undergoing primary LT (2013-2019) and assessed the prediction of graft failure 1 year after LT. The final components were donor Insulin-dependent diabetes mellitus, Donor type (DCD or DBD), cause of Death = CVA, serum creatinine, Age, height, and weight (length). The ID2 EAL score had better discrimination than DRI using bootstrap corrected concordant index over time, especially in the current era. We explored donor-recipient matching. Relative risk of graft failure ranged from 1.15 to 3.5 based on relevant donor-recipient matching by the ID2 EAL score. As an example, for certain recipients, a young DCD donor offer was preferable to an older DBD with relevant comorbidities. The ID2 EAL score may serve as an important tool for patient discussion about donor risk and decisions regarding offer acceptance. In addition, the score may be preferable to succinctly capture donor risk in future organ allocation that considers continuous distribution (www.iddealscore.com).


Assuntos
Doença Hepática Terminal , Transplante de Fígado , Obtenção de Tecidos e Órgãos , Humanos , Transplante de Fígado/efeitos adversos , Doença Hepática Terminal/cirurgia , Seleção do Doador , Sobrevivência de Enxerto , Doadores de Tecidos , Estudos Retrospectivos
18.
Am J Transplant ; 22(2): 371-380, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34706165

RESUMO

Transplant centers seeking to increase coronavirus disease 2019 (COVID-19) vaccine coverage may consider requiring vaccination for healthcare workers or for candidates. The authors summarize current data to inform an ethical analysis of the harms, benefits, and individual and societal impact of mandatory vaccination, concluding that vaccine requirements for healthcare workers and transplant candidates are ethically justified by beneficence, net utility, and fiduciary duty to patients and public health. Implementation strategies should mitigate concerns about respect for autonomy and transparency for both groups. We clarify how the same arguments might be applied to related questions of caregiver vaccination, allocation of other healthcare resources, and mandates for non-COVID-19 vaccines. Finally, we call for effort to achieve global equity in vaccination as soon as possible.


Assuntos
Vacinas contra COVID-19 , Vacinação , COVID-19 , Revisão Ética , Pessoal de Saúde , Humanos , Pacientes
19.
Clin Transplant ; 36(1): e14490, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34545967

RESUMO

BACKGROUND: Knowledge of metabolic processes affected by major hepatectomy (MHx), and the metabolic pathways involved in liver regeneration and recovery of function, is limited and mainly derived from animal models. Assessment of restoration of hepatic function is essential in human living liver donors (LD). METHODS: We used a targeted metabolomic approach to longitudinally quantify changes in plasma and urine biomarkers from healthy LD. The biomarkers were analyzed before MHx and at scheduled intervals up to 12 months thereafter. RESULTS: Marked changes were found in the concentration of 15 primary and secondary plasma bile acids. Most significant changes occurred 2 days after MHx and persisted for up to 3 months. In addition, there were significant changes in acylcarnitine, phospholipid, and amino acid metabolism. The sum of aromatic amino acids and the Fischer ratio, both metabolic markers of liver damage, and the symmetrically demethylated arginine to arginine ratio, a marker of kidney function, were affected. CONCLUSIONS: This is the first comprehensive longitudinal study investigating metabolic processes during recovery of liver function after MHx in LD. It provides further evidence of full restoration of metabolic processes 3 months after MHx and supports future investigation to understand how metabolic changes affect donors' hepatic function.


Assuntos
Regeneração Hepática , Fígado , Animais , Hepatectomia , Humanos , Doadores Vivos , Estudos Longitudinais
20.
BJOG ; 129(7): 1095-1102, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34889028

RESUMO

OBJECTIVE: To assess how absolute uterine factor infertility affects women who undergo uterus transplantation, how uterus transplantation impacts women with absolute uterine factor infertility and how uterus transplant recipients view uterus transplantation in terms of their reproductive autonomy. DESIGN: Qualitative semi-structured interview study. SETTING: Uterus transplant programme in a large academic medical centre in the USA. POPULATION/SAMPLE: Twenty one uterus transplant recipients. METHODS: A medical chart review was conducted to collect patient demographic information and clinical outcomes. Semi-structured interviews collected information regarding participants' experience. MAIN OUTCOME MEASURE(S): The outcomes of interest were participants' experience of infertility, experience with uterus transplantation and general perceptions of uterus transplantation. RESULTS: Six participants were pregnant (one with a second child), six had experienced early graft failure and removal, five had delivered a healthy baby, and four had a viable graft and were awaiting embryo transfer. The primary themes identified were: the negative impact of absolute uterine factor infertility diagnosis on psychological wellbeing, relationships and female identity; the positive impact of uterus transplantation on healing the emotional scars of absolute uterine factor infertility, female identity and value of research trial participation and the perception of uterus transplantation as an expansion of reproductive autonomy. All participants reported that uterus transplantation was worthwhile, regardless of individual outcome. CONCLUSION: Absolute uterine factor infertility has a negative impact on women from a young age, affects multiple relationships and challenges female identity. Uterus transplantation helps to reverse this impact, transforming women's life narrative of infertility and enhancing female identity. TWEETABLE ABSTRACT: Absolute uterine factor infertility (AUFI) adversely affects women. Uterus transplantation helps mitigate the negative impact of AUFI, by transforming women's life narratives of infertility and enhancing female identity.


Assuntos
Transferência Embrionária , Infertilidade Feminina , Útero , Feminino , Humanos , Infertilidade Feminina/diagnóstico , Gravidez , Pesquisa Qualitativa , Útero/transplante
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa