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1.
Am J Transplant ; 22 Suppl 2: 519-552, 2022 03.
Article in English | MEDLINE | ID: mdl-35266619

ABSTRACT

SRTR uses data collected by OPTN to calculate metrics such as donation rate, organ yield, and rate of organs recovered for transplant but not transplanted. In 2020, there were 12,588 deceased donors, an increase from 11,870 in 2019; this number has been increasing since 2010. The number of deceased donor transplants increased to 33,303 in 2020, from 32,313 in 2019; this number has been increasing since 2012. The increase may be due in part to the rising number of deaths of young people amid the ongoing opioid epidemic. The number of organs transplanted included 18,410 kidneys, 962 pancreata, 8350 livers, 91 intestines, 3722 hearts, and 2463 lungs. Compared with 2019, transplants of all organs except pancreata and lung transplants increased in 2020, which is remarkable despite the pandemic caused by the SARS-CoV2 virus. In 2020, 4870 kidneys, 294 pancreata, 861 livers, 3 intestines, 39 hearts, and 115 lungs were discarded. The number of discards was similar to that of the previous year. In 2019, 4,324 kidneys, 346 pancreata, 867 livers, 5 intestines, 31 hearts, and 148 lungs were discarded. These numbers suggest an opportunity to increase numbers of transplants by reducing discards. Despite the pandemic, there was no dramatic increase in number of discards and an increase in total number of donors and transplants.


Subject(s)
COVID-19 , Organ Transplantation , Tissue Donors/statistics & numerical data , Tissue and Organ Procurement , Adolescent , COVID-19/epidemiology , Humans , Organ Transplantation/standards , Organ Transplantation/statistics & numerical data , Registries , SARS-CoV-2 , Tissue Donors/classification , Tissue and Organ Procurement/statistics & numerical data , Tissue and Organ Procurement/trends
2.
Goiânia; SES-GO; 25 mar. 2022. 1-21 p. quad, graf.
Non-conventional in Portuguese | LILACS, CONASS, Coleciona SUS, SES-GO | ID: biblio-1397377

ABSTRACT

A Portaria MS n.º 78, de 9 de março de 1.999, credenciou a Central Estadual de Transplantes de Goiás - CET/GO e desde então, os transplantes no Estado tem desenvolvido de forma íntegra e abrangente, inclusive no que tange outras instituições, as quais possam participar de forma direta ou indiretamente das ações relacionadas aos transplantes, no Estado. Diante disso, a presente Nota Técnica n.º 2/2022 visa orientar, organizar e publicizar o fluxo das ações relacionadas aos transplantes de rins em Goiás, de modo a atender as legislações vigentes, bem como a necessidade social e médica, em consonância com os princípios do SUS, que são norteadores desse processo


Ordinance MS n.º 78, of March 9, 1999, accredited the Goiás State Transplant Center - CET/GO and since then, transplants in the State have developed in an integral and comprehensive way, including with regard to other institutions, which can participate directly or indirectly in actions related to transplants in the State. Therefore, this Technical Note No. 2/2022 - aims to guide, organize and publicize the flow of actions related to kidney transplants in Goiás, in order to comply with current legislation, as well as the social need and medical, in line with the principles of the SUS, which guide this process


Subject(s)
Humans , Kidney Transplantation/standards , Tissue Donors/classification , Dialysis/standards
3.
Med Sci Monit ; 28: e933559, 2022 Jan 01.
Article in English | MEDLINE | ID: mdl-34972813

ABSTRACT

BACKGROUND In an environment of limited kidney donation resources, patient recovery and survival after kidney transplantation (KT) are highly important. We used pre-operative data of kidney recipients to build a statistical model for predicting survivability after kidney transplantation. MATERIAL AND METHODS A dataset was constructed from a pool of patients who received a first KT in our hospital. For allogeneic transplantation, all donated kidneys were collected from deceased donors. Logistic regression analysis was used to change continuous variables into dichotomous ones through the creation of appropriate cut-off values. A regression model based on the least absolute shrinkage and selection operator (LASSO) algorithm was used for dimensionality reduction, feature selection, and survivability prediction. We used receiver operating characteristic (ROC) analysis, calibration, and decision curve analysis (DCA) to evaluate the performance and clinical impact of the proposed model. Finally, a 10-fold cross-validation scheme was implemented to verify the model robustness. RESULTS We identified 22 potential variables from which 30 features were selected as survivability predictors. The model established based on the LASSO regression algorithm had shown discrimination with an area under curve (AUC) value of 0.690 (95% confidence interval: 0.557-0.823) and good calibration result. DCA demonstrated clinical applicability of the prognostic model when the intervention progressed to the possibility threshold of 2%. An average AUC value of 0.691 was obtained on the validation data. CONCLUSIONS Our results suggest that the proposed model can predict the mortality risk for patients after kidney transplants and could help kidney specialists choose kidney recipients with better prognosis.


Subject(s)
Kidney Transplantation , Models, Statistical , Risk Assessment , Tissue Donors , Cadaver , China/epidemiology , Female , Humans , Kidney Failure, Chronic/surgery , Kidney Transplantation/methods , Kidney Transplantation/mortality , Male , Middle Aged , Patient Selection , Predictive Value of Tests , Prognosis , Risk Assessment/methods , Risk Assessment/statistics & numerical data , Survival Analysis , Tissue Donors/classification , Tissue Donors/statistics & numerical data
4.
J Thorac Cardiovasc Surg ; 162(4): 1284-1293.e4, 2021 Oct.
Article in English | MEDLINE | ID: mdl-32977961

ABSTRACT

OBJECTIVE: The purpose of this study was to recognize clinically meaningful differences in lung transplant outcomes based on local or distant lung procurement. This could identify if the lung allocation policy change would influence patient outcomes. METHODS: This single-center retrospective cohort study analyzed adult patients who underwent lung transplant from 2006 to 2017. Donor and recipient data were abstracted from a collaborative, prospective registry shared by our local organ procurement organization, and tertiary medical center. Short-term outcomes, 1-year survival, and hospitalization costs were compared between local and distant lung transplants defined by donor service area. RESULTS: Of the 722 lung transplants performed, 392 (54%) had local donors and 330 (46%) had distant donors. Donors were similar in age and cause of death. Recipients were significantly different in diagnosis and local recipients had lower median lung allocation scores (local, 37.3 and distant, 44.9; P < .01). Distant lung transplants had longer total ischemic times (local, 231 ± 52 minutes and distant, 313 ± 48 minutes; P < .01). The rate of major complications, length of hospital stay, and 1-year survival were similar between groups. Distant lung transplants were associated with higher median overall cost (local, $183,542 and distant, $229,871; P < .01). Local lung transplants were more likely to be performed during daytime (local, 333 out of 392 [85%] and distant, 291 out of 330 [61%]; P < .01). CONCLUSIONS: Local lung transplants are associated with shorter ischemic times, lower cost, and greater likelihood of daytime surgery. Short- and intermediate-term outcomes are similar for lung transplants from local and distant donors. The new lung allocation policy, with higher proportion of distant lung transplants, is likely to incur greater costs but provide similar outcomes.


Subject(s)
Graft Survival , Lung Transplantation , Postoperative Complications , Resource Allocation , Tissue and Organ Procurement , Transplants/supply & distribution , Adult , Cold Ischemia/statistics & numerical data , Female , Humans , Lung/blood supply , Lung Transplantation/adverse effects , Lung Transplantation/economics , Lung Transplantation/methods , Lung Transplantation/statistics & numerical data , Male , Outcome Assessment, Health Care , Policy Making , Postoperative Complications/diagnosis , Postoperative Complications/etiology , Postoperative Complications/prevention & control , Registries/statistics & numerical data , Resource Allocation/economics , Resource Allocation/methods , Retrospective Studies , Tertiary Care Centers/statistics & numerical data , Tissue Donors/classification , Tissue Donors/statistics & numerical data , Tissue and Organ Procurement/methods , Tissue and Organ Procurement/organization & administration , Tissue and Organ Procurement/supply & distribution , Topography, Medical , United States
5.
Goiânia; SES-GO; 2021. 1-14 p. quad.
Non-conventional in Portuguese | LILACS, CONASS, Coleciona SUS, SES-GO | ID: biblio-1397349

ABSTRACT

O transplante é um procedimento cirúrgico que consiste na reposição de um órgão (coração, pulmão, rim, pâncreas, fígado) ou tecido (medula óssea, ossos, córneas) de uma pessoa doente (receptor), por outro órgão ou tecido normal de um doador vivo ou morto. São classificados por dois tipos, sendo doador falecido e doador vivo. Neste último, apenas maiores de idade e capaz juridicamente poderão doar e o procedimento ocorre de modo a preservar a qualidade de vida e a manutenção fisiológica do doador, salvaguardando a segurança do indivíduo, concomitante a espontaneidade da doação. Esta nota técnica tem como objetivo orientar e organizar o fluxo para a realização do transplante com doador vivo em Goiás, de modo a atender a necessidade social e médica, preservando os princípios legais e norteadores do processo


Transplantation is a surgical procedure that consists of replacing an organ (heart, lung, kidney, pancreas, liver) or tissue (bone marrow, bones, corneas) from a sick person (recipient) with another organ or normal tissue from a living or dead donor. They are classified by two types, being deceased donor and living donor. In the latter, only those of legal age and legal capacity can donate and the procedure takes place in order to preserve the quality of life and maintenance physiological function of the donor, safeguarding the individual's safety, concomitant with the spontaneity of the donation. This technical note aims to guide and organize the flow for carrying out the transplant with a live donor in Goiás, in order to meet the social and medical needs, preserving the legal and guiding principles of the process


Subject(s)
Humans , Kidney Transplantation/standards , Tissue Donors/classification , Living Donors
6.
Rev. esp. cardiol. (Ed. impr.) ; 73(11): 919-926, nov. 2020. tab, graf
Article in Spanish | IBECS | ID: ibc-200976

ABSTRACT

INTRODUCCIÓN Y OBJETIVOS: Se presentan las características clínicas y los resultados de los trasplantes cardiacos realizados en España con la actualización correspondiente a 2019. MÉTODOS: Se describen las características clínicas y los resultados de los trasplantes cardiacos realizados en 2019, así como las tendencias de estos en el periodo 2010-2018. RESULTADOS: En 2019 se realizaron 300 trasplantes (8.794 desde 1984; 2.745 entre 2010 y 2019). Respecto a años previos, los cambios más llamativos son el descenso hasta el 38% de los trasplantes realizados en código urgente, y la consolidación en el cambio de asistencia circulatoria pretrasplante, con la práctica desaparición del balón de contrapulsación (0,7%), la estabilización del uso del oxigenador extracorpóreo de membrana (9,6%) y el aumento de los dispositivos de asistencia ventricular (29%). La supervivencia en el trienio 2016-2018 es similar a la del trienio 2013-2015 (p = 0,34), y ambas mejores que la del trienio 2010-2012 (p = 0,002 y p = 0,01 respectivamente). CONCLUSIONES: Se mantienen estables tanto la actividad del trasplante cardiaco en España como los resultados en supervivencia en los últimos 2 trienios. Hay una tendencia a realizar menos trasplantes urgentes, la mayoría con dispositivos de asistencia ventricular


INTRODUCTION AND OBJECTIVES: The present report describes the clinical characteristics and outcomes of heart transplants in Spain and updates the data to 2019. METHODS: We describe the clinical characteristics and outcomes of heart transplants performed in Spain in 2019, as well as trends in this procedure from 2010 to 2018. RESULTS: In 2019, 300 transplants were performed (8794 since 1984; 2745 between 2010 and 2019). Compared with previous years, the most notable findings were the decreasing rate of urgent transplants (38%), and the consolidation of the type of circulatory support prior to transplant, with an almost complete disappearance of counterpulsation balloon (0.7%), stabilization in the use of extracorporeal membrane oxygenation (9.6%), and an increase in the use of ventricular assist devices (29.0%). Survival from 2016 to 2018 was similar to that from 2013 to 2015 (P=.34). Survival in both these periods was better than that from 2010 to 2012 (P=.002 and P=.01, respectively). CONCLUSIONS: Heart transplant activity has remained stable during the last few years, as have outcomes (in terms of survival). There has been a trend to a lower rate of urgent transplants and to a higher use of ventricular assist devices prior to transplant


Subject(s)
Humans , Heart Transplantation , Extracorporeal Membrane Oxygenation , Tissue Donors/classification , Tissue and Organ Procurement/trends , Heart Failure/surgery , Diseases Registries/statistics & numerical data , Research Report , Spain/epidemiology , Survival Analysis , Postoperative Complications/epidemiology , Indicators of Morbidity and Mortality , Emergency Treatment/methods
8.
J. bras. nefrol ; 42(2): 211-218, Apr.-June 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1134807

ABSTRACT

Abstract Introduction: Kidney Donor Profile Index (KDPI) has been incorporated in the United States to improve the kidney transplant allocation system. Objectives: To evaluate deceased kidney donors' profile using KDPI and compare to the previous United Network for Organ Sharing (UNOS) definition of expanded criteria donors (ECD) and assess the KDPI applicability to predict five-year graft survival and renal function in our sample. Methods: Retrospective cohort of 589 kidney transplants from deceased donors performed from January 2009 to May 2013 with follow-up until May 2018. Results: In 589 kidney transplants, 36.6% of donors were classified as ECD and 28.8% had KDPI ≥ 85%. Mean KDPI was 63.1 (95%CI: 60.8-65.3). There was an overlap of standard and ECD in KDPI between 60 and 95 and a significantly lower death-censored graft survival in KDPI ≥ 85% (78.6%); KDPI 0-20: 89.8%, KDPI 21-59: 91.6%, and KDPI 60-84: 83.0%; p = 0.006. The AUC-ROC was 0.577 (95%CI: 0.514-0.641; p = 0.027). Renal function at 5 years was significantly lower according to the incremental KDPI (p < 0.002). KDPI (HR 1.011; 95%CI 1.001-1.020; p = 0.008), donor-specific antibodies (HR 2.77; 95%CI 1.69-4.54; p < 0.001), acute rejection episode (HR 1.73; 95%CI 1.04-2.86; p = 0.034) were independent and significant risk factors for death-censored graft loss at 5 years. Conclusion: In our study, 36.6% were classified as ECD and 28.8% had KDPI ≥ 85%. KDPI score showed a moderate power to predict graft survival at 5 years. Renal function was significantly lower in patients with higher KDPI.


Resumo Introdução: O Índice de Perfil de Doadores de Rins (KDPI) foi adotado nos Estados Unidos para melhorar o sistema de alocação de transplantes renais. Objetivos: avaliar o perfil dos doadores de rim falecidos usando o KDPI e comparar com a definição anterior do United Network for Organ Sharing (UNOS) de doadores de critérios expandidos (DCE) e avaliar a aplicabilidade do KDPI para prever a sobrevida do enxerto em cinco anos e a função renal em nossa amostra. Métodos: Coorte retrospectiva de 589 transplantes renais de doadores falecidos, realizada de janeiro de 2009 a maio de 2013, com acompanhamento até maio de 2018. Resultados: Em 589 transplantes renais, 36,6% dos doadores foram classificados como DCE e 28,8% apresentaram KDPI ≥ 85%. O KDPI médio foi de 63,1 (IC 95%: 60,8-65,3). Houve uma sobreposição de padrão e DCE no KDPI entre 60 e 95 e uma sobrevida do enxerto censurada por óbito significativamente menor no KDPI ≥ 85% (78,6%); KDPI 0-20: 89,8%, KDPI 21-59: 91,6% e KDPI 60-84: 83,0%; p = 0,006. A ASC-ROC foi de 0,577 (IC 95%: 0,514-0,641; p = 0,027). A função renal aos 5 anos foi significativamente menor de acordo com o aumento do KDPI (p <0,002). KDPI (HR 1.011; 95% CI 1.001-1.020; p = 0.008), anticorpos específicos contra doadores (HR 2,77; 95% CI 1,69-4,54; p <0,001), episódio de rejeição aguda (HR 1,73; 95% CI 1,04-2,86; p = 0,034) foram fatores de risco independentes e significativos para perda do enxerto censurada por óbito em 5 anos. Conclusão: Em nosso estudo, 36,6% foram classificados como DCE e 28,8% apresentaram KDPI ≥ 85%. O escore KDPI mostrou potencial moderado para prever a sobrevida do enxerto em 5 anos. A função renal foi significativamente menor nos pacientes com maior KDPI.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Tissue Donors/classification , Tissue Donors/statistics & numerical data , Kidney Transplantation/adverse effects , Transplant Recipients/statistics & numerical data , Graft Survival/physiology , Tissue Donors/supply & distribution , Brazil/epidemiology , Predictive Value of Tests , Retrospective Studies , Risk Factors , Cohort Studies , Follow-Up Studies , Kidney Transplantation/mortality , Patient Selection/ethics , Glomerular Filtration Rate/physiology , Kidney Function Tests/trends , Kidney Function Tests/statistics & numerical data
9.
J Bras Nefrol ; 42(2): 211-218, 2020 May 11.
Article in English, Portuguese | MEDLINE | ID: mdl-32406473

ABSTRACT

INTRODUCTION: Kidney Donor Profile Index (KDPI) has been incorporated in the United States to improve the kidney transplant allocation system. OBJECTIVES: To evaluate deceased kidney donors' profile using KDPI and compare to the previous United Network for Organ Sharing (UNOS) definition of expanded criteria donors (ECD) and assess the KDPI applicability to predict five-year graft survival and renal function in our sample. METHODS: Retrospective cohort of 589 kidney transplants from deceased donors performed from January 2009 to May 2013 with follow-up until May 2018. RESULTS: In 589 kidney transplants, 36.6% of donors were classified as ECD and 28.8% had KDPI ≥ 85%. Mean KDPI was 63.1 (95%CI: 60.8-65.3). There was an overlap of standard and ECD in KDPI between 60 and 95 and a significantly lower death-censored graft survival in KDPI ≥ 85% (78.6%); KDPI 0-20: 89.8%, KDPI 21-59: 91.6%, and KDPI 60-84: 83.0%; p = 0.006. The AUC-ROC was 0.577 (95%CI: 0.514-0.641; p = 0.027). Renal function at 5 years was significantly lower according to the incremental KDPI (p < 0.002). KDPI (HR 1.011; 95%CI 1.001-1.020; p = 0.008), donor-specific antibodies (HR 2.77; 95%CI 1.69-4.54; p < 0.001), acute rejection episode (HR 1.73; 95%CI 1.04-2.86; p = 0.034) were independent and significant risk factors for death-censored graft loss at 5 years. CONCLUSION: In our study, 36.6% were classified as ECD and 28.8% had KDPI ≥ 85%. KDPI score showed a moderate power to predict graft survival at 5 years. Renal function was significantly lower in patients with higher KDPI.


Subject(s)
Graft Survival/physiology , Kidney Transplantation/adverse effects , Tissue Donors/classification , Tissue Donors/statistics & numerical data , Transplant Recipients/statistics & numerical data , Adult , Aged , Brazil/epidemiology , Cohort Studies , Female , Follow-Up Studies , Glomerular Filtration Rate/physiology , Humans , Kidney Function Tests/statistics & numerical data , Kidney Function Tests/trends , Kidney Transplantation/mortality , Kidney Transplantation/statistics & numerical data , Male , Middle Aged , Patient Selection/ethics , Predictive Value of Tests , Retrospective Studies , Risk Factors , Tissue Donors/supply & distribution
10.
Saudi J Kidney Dis Transpl ; 31(1): 245-253, 2020.
Article in English | MEDLINE | ID: mdl-32129219

ABSTRACT

Organ transplantation is the gold standard for treating end-stage organ diseases, many of whom are on waiting lists. The reasons for this include the nonavailability of suitable organs to be transplanted. In many nations, most of these challenges have been surmounted by the adoption of deceased donor program, which is not so in sub-Saharan countries such as Nigeria. This study is to audit the potentially transplantable organs available from potential deceased donors from a Nigerian tertiary hospital. This is a study of deaths in the intensive care unit (ICU) and the accident and emergency units of the University of Ilorin Teaching Hospital, Nigeria. Data included the biodata, social history, diagnosis or indications for admission, time of arrival and death, causes of death, associated comorbidities, potential organs available, social history, and availability of relations at the time of death. There were 104 deaths in the ICU and 10 patients in the accident and emergency unit. There were 66 males (57.9%) and 48 females (42.1%). Eighty patients were Muslims (70.2%) and 34 were Christians (19.8%). A total of 33 participants were unmarried (28.9%),whereas 81 (71.1%) were married. The tribes of the patients were Yoruba (105, 92.1%), Igbo (7, 6.1%), Hausa (1, 0.9%), and Nupe (1, 0.9%). The age range was 0.08-85 years. Twenty-two (19.3%) had primary and the remaining had at least secondary education. The causes of death were myriad, and there were relatives available at the times of all deaths. The Maastricht classification of the deaths were Class I - 1 (0.9%), Class II - 37 (32.2%), Class III - 9 (7.8%), Class IV - 20 (17.4%), and Class V - 47(40.9%). There were no transplantable organs in 42 (36.5%), one organ in eight (7%), two organs in two (7%), three organs in one (0.9%), four organs in 13 (11.3%), five organs in six (5.2%), six organs in 11 (9.6%), seven organs in 11 (9.6%), eight organs in five (13%), and nine organs in five (4.3%). Deceased donor sources of organs are worthy of being exploited to improve organ transplantation in Nigeria.


Subject(s)
Organ Transplantation/methods , Tissue Donors , Tissue and Organ Procurement , Transplants , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Middle Aged , Nigeria , Prospective Studies , Tissue Donors/classification , Tissue Donors/statistics & numerical data , Tissue and Organ Procurement/methods , Tissue and Organ Procurement/statistics & numerical data , Transplants/classification , Transplants/standards , Transplants/statistics & numerical data , Young Adult
11.
Transplant Proc ; 52(4): 1024-1029, 2020 May.
Article in English | MEDLINE | ID: mdl-32199648

ABSTRACT

Primary central nervous system tumors can be the cause of brain death. Not all of them contraindicate the donation of organs and tissues for transplant. A survey of cases was carried out in our country in which it was observed that the number of brain deaths caused by primary tumors was low, of the order of 2%, with an x (media) of 3 by year, which would increase the potential for donation. Medical records, an anatomopathologic study, and a detailed physical examination will be fundamental when applying the donor selection criteria. Nuclear magnetic resonance in expert hands has a sensitivity of 96% to catalog the benignity or malignancy of this type of tumors.


Subject(s)
Central Nervous System Neoplasms , Donor Selection/methods , Tissue Donors , Tissue and Organ Procurement/methods , Brain Death/diagnosis , Central Nervous System Neoplasms/mortality , Central Nervous System Neoplasms/pathology , Donor Selection/classification , Humans , Tissue Donors/classification , Tissue Donors/statistics & numerical data , Tissue Donors/supply & distribution
13.
J Thorac Cardiovasc Surg ; 160(2): 572-581, 2020 Aug.
Article in English | MEDLINE | ID: mdl-31924361

ABSTRACT

OBJECTIVES: To study the impact of using the US Public Health Service broadened definition of "increased-risk" donors (2013) in comparison with "high-risk" (1994) and standard infectious risk donors on lung transplant recipient outcomes. METHODS: Patients who underwent lung transplant between January 1, 2006, and May 31, 2017, in the Scientific Registry of Transplant Recipients were divided into 2 cohorts, recipients of: (1) high-risk donors: January 1, 2006, to October 1, 2013, and (2) increased-risk donors: January 1, 2014, to May 31, 2017, and compared with matched recipients who received standard-risk donors. Risks for acute rejection, patient, and graft survival using propensity score matched cohorts, multivariable logistic, and Cox models were examined. RESULTS: In total, 18,490 lung transplant recipients were analyzed with 36% transplanted during the increased-risk donor definition period. The proportion of donors classified as nonstandard infectious risk increased with the definition change (8% high-risk donors vs 22% increased-risk donors; P < .001). In both cohorts, male patients with a lower forced expiratory volume in 1 second and greater creatinine were more likely to receive an organ from increased risk donors. Neither graft nor patient survival differed by donor type in either period. Acute treated rejection within 1 year did not differ by period for recipients of increased risk donors (odds ratio, 0.87; P = .23) or recipients of high-risk donors (odds ratio, 1.2; P = .27). CONCLUSIONS: The 2013 broadened definition of donor risk increased the proportion of nonstandard infectious risk donors. Recipients of increased/high-risk donors had similar graft and patient survival compared with standard-risk donors.


Subject(s)
Donor Selection , Lung Diseases/surgery , Lung Transplantation/adverse effects , Terminology as Topic , Tissue Donors/classification , Adult , Aged , Female , Graft Rejection/immunology , Graft Rejection/mortality , Graft Survival , Health Status , Humans , Incidence , Lung Diseases/diagnosis , Lung Diseases/mortality , Lung Diseases/physiopathology , Lung Transplantation/mortality , Male , Middle Aged , Recovery of Function , Registries , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome , United States/epidemiology , United States Public Health Service , Young Adult
15.
JAMA Netw Open ; 2(8): e1910312, 2019 08 02.
Article in English | MEDLINE | ID: mdl-31469394

ABSTRACT

Importance: In the United States, substantial disparities in access to kidney transplant exist for wait-listed candidates with end-stage renal disease. The implications of transplant centers' willingness to accept kidney offers for access to transplant and mortality outcomes are unknown. Objective: To determine the outcomes for wait-listed kidney transplant candidates after the transplant center's refusal of a deceased donor kidney offer. Design, Setting, and Participants: This cohort study obtained data from the United Network for Organ Sharing Potential Transplant Recipient data set on all deceased donor kidney offers in the United States made between January 1, 2008, and December 31, 2015. The final study cohort included adult patients who were wait-listed for kidney transplant and received at least 1 allograft offer during the study period (N = 280 041). Data analysis was conducted from June 1, 2018, to March 30, 2019. Exposure: Candidate state of residence. Main Outcomes and Measures: Waiting list outcome event groups included received deceased donor allograft, received living donor allograft, died while on the waiting list, removed from the waiting list without a transplant, or still on the waiting list at the end of follow-up. Results: Among the 280 041 kidney transplant candidates included in the study, the mean (SD) age at wait-listing was 51.1 (13.1) years, and male patients were predominant (171 517 [61.2%]). In this cohort, 81 750 candidates (29.2%) received a deceased donor kidney allograft, 30 870 (11.0%) received a living donor allograft, 25 967 (9.3%) died while on the waiting list, and 59 359 (21.2%) were removed from the waiting list. Overall, 10 candidates with at least 1 previous allograft offer died each day during the study period. Time to first offer was similar for candidates who received deceased donor kidney allograft compared with those who died while waiting (median [interquartile range {IQR}] time, 79 [16-426] days vs 78 [17-401] days, respectively). Deceased donor allograft recipients had a median of 17 offers (IQR, 6-44) over 422 days (IQR, 106-909 days), whereas candidates who died while waiting received a median of 16 offers (IQR, 6-41) over 651 days (IQR, 304-1117 days). Most kidneys (84%) were declined on behalf of at least 1 candidate before being accepted for transplant. As reported by centers, organ or donor quality concerns accounted for 8 416 474 (92.6%) of all declined offers, whereas offers were infrequently refused because of patient-related factors (232 193 [2.6%]), logistical limitations (49 492 [0.5%]), or other concerns. The odds of death after an offer and the median number of offers received prior to death varied considerably by state. Conclusions and Relevance: This study found that transplant candidates appeared to receive a large number of viable deceased donor kidney offers that were refused on their behalf by transplant centers, potentially exacerbating the detrimental consequences of the organ shortage; increased transparency in organ allocation process and decisions may improve patient-centered care and access to kidney transplant.


Subject(s)
Allografts/supply & distribution , Kidney Failure, Chronic/surgery , Kidney Transplantation/statistics & numerical data , Tissue Donors/statistics & numerical data , Tissue and Organ Procurement/statistics & numerical data , Adult , Allografts/statistics & numerical data , Allografts/transplantation , Case-Control Studies , Female , Health Services Accessibility/ethics , Humans , Kidney Failure, Chronic/epidemiology , Kidney Transplantation/adverse effects , Kidney Transplantation/methods , Male , Middle Aged , Outcome Assessment, Health Care , Patient-Centered Care/ethics , Tissue Donors/classification , Tissue Donors/supply & distribution , Tissue and Organ Procurement/methods , Transplant Recipients/statistics & numerical data , United States/epidemiology , Waiting Lists/mortality
16.
Enferm. glob ; 18(55): 643-660, jul. 2019. tab, graf
Article in Spanish | IBECS | ID: ibc-186253

ABSTRACT

Introducción: la mayor parte de los diagnósticos de enfermería sobre los potenciales donantes de órganos están relacionados a alteraciones fisiológicas. Es común que estos pacientes presenten todos los diagnósticos citados para esta población. Pero todavía no existe en NANDA International un diagnóstico único que sea capaz de plantear este severo caso. Objetivo: identificar en la literatura las posibles características definitorias para la propuesta de diagnóstico Síndrome del equilibrio fisiológico deteriorado en pacientes con muerte encefálica y potenciales donantes de órganos. Método: revisión integrativa de la literatura con estudios publicados entre el 1997 y el 2017 en las bases de datos Web of Science, LILACS y PubMed. Resultados: la muestra constó de 37 artículos, de los cuales se identificó 44 posibles características distintas para el diagnóstico de enfermería en desarrollo. Se dividieron las características definitorias en cinco grupos principales: alteraciones endocrino-metabólicas; alteraciones hemodinámicas y/o cardiovasculares; alteraciones respiratorias; alteraciones nutricionales y alteraciones de la coagulación, inflamatorias e/o inmunológicas. Conclusiones: el desarrollo de este diagnóstico puede colaborar con la calificación de la taxonomía de NANDA Internacional, así como ampliar el conocimiento de la enfermería en el campo de mantenimiento del posible donante de órganos, lo que contribuye a la enseñanza e investigación. El empleo de este diagnóstico puede mejorar la sistematización del cuidado, auxilia en el mantenimiento del potencial donante y, en consecuencia, mejora la viabilidad de órganos para trasplante


Introdução: a maior parte dos diagnósticos de enfermagem prevalentes para potenciais doadores de órgãos está relacionada com alterações fisiológicas. Não raro estes pacientes apresentam todos os diagnósticos citados para esta população. Todavia, não existe na NANDA International um diagnóstico único que aborde este quadro agudo. Objetivo: identificar na literatura possíveis características definidoras para a proposta de diagnóstico Síndrome do equilíbrio fisiológico prejudicado para pacientes em morte encefálica e potenciais doadores de órgãos. Método: revisão integrativa da literatura incluindo artigos publicados entre 1997 e 2017 nas bases de dados Web of Science, LILACS e PubMed. Resultados: a amostra foi constituída por 37 artigos identificando 44 possíveis características definidoras para o diagnóstico de enfermagem em desenvolvimento. As características definidoras foram divididas em cinco grandes grupos: alterações endócrino-metabólicas, alterações hemodinâmicas e/ou cardiovasculares, alterações ventilatórias, alterações nutricionais e alterações de coagulação, inflamatórias e/ou imunológicas. Conclusões: o desenvolvimento deste diagnóstico pode colaborar com a qualificação da taxonomia da NANDA International, além de ampliar o conhecimento da enfermagem na área de manutenção do potencial doador de órgãos contribuindo para o ensino e pesquisa. O uso desta proposta de diagnóstico na prática pode proporcionar uma melhor sistematização do cuidado, auxiliando a adequada manutenção do potencial doador e consequentemente melhor viabilidade dos órgãos ofertados para transplantes


Introduction: most of nursing diagnoses for potential organ donors is related to physiological changes. These patients often have all diagnoses cited for this population. However, NANDA International does not have a diagnosis to address this acute condition. Objective: to identify possible defining characteristics for the diagnosis of impaired physiological equilibrium syndrome for brain death patients and for potential organ donors in the literature. Method: integrative literature review including articles published between 1997 and 2017 in the databases Web of Science, LILACS and PubMed. Results: the sample consisted of 37 articles identifying 44 possible defining characteristics for the nursing diagnosis to be developed. The defining characteristics were divided into five major groups of changes: endocrine-metabolic changes, hemodynamic and/or cardiovascular changes, ventilatory changes, nutritional changes, coagulation changes, inflammatory and/ or immune changes. Conclusions: developing this diagnosis can collaborate to the taxonomy of NANDA International, as well as to extend the nursing knowledge of the area of maintenance of the potential organ donor, contributing to teaching and research. The practical use of this diagnosis purpose can provide a better systematization of care, enabling the proper maintenance of the potential organ donor and consequently improving the viability of organs for transplantation


Subject(s)
Humans , Tissue Donors/classification , Nursing Diagnosis/methods , Stress, Physiological , Organ Transplantation/nursing , Tissue and Organ Procurement/methods
17.
Clin Exp Optom ; 102(5): 485-488, 2019 09.
Article in English | MEDLINE | ID: mdl-30924179

ABSTRACT

BACKGROUND: The cornea is a highly transparent structure covering the anterior one-fifth of the eyeball. The suitability of post-mortem donor corneas for keratoplasty is currently qualitatively assessed. This makes inferences prone to bias and subjective variability. This study aimed to develop a simple, feasible and cost-effective method to quantify corneal transparency. METHODS: An artificial anterior chamber was modified to provide a central transparent passage and a standardised pressure segment. All corneas graded 'fair' were included in this study. The corneoscleral buttons were mounted on the modified artificial anterior chamber. The mounted chamber was held in a horizontal position at a fixed distance from a white projection screen. The laser source was placed in alignment with an artificial anterior chamber so that it passed through the centre of the cornea. A camera mounted on a tripod stand was placed at a prefixed distance. An image of the scattered laser spot that formed after the laser passed through the mounted cornea on the screen was captured with a single digital camera and standardised settings. Image analysis was performed using ImageJ, an open platform for scientific image analysis. The average red pixel intensity, max intensity, and full-width half max were calculated. RESULTS: The average red intensity was 132.45 ± 6.65 SD. The mean for max intensity was 51.1 ± 3.78 SD and the full-width half max 787.7 ± 84.7 SD. CONCLUSION: Laser quantification is a simple and cost-effective method of quantifying corneal transparency. The study lends proof to the principle involved.


Subject(s)
Cornea/physiology , Diagnostic Techniques, Ophthalmological , Image Processing, Computer-Assisted/methods , Lasers , Postmortem Changes , Tissue Donors/classification , Tissue and Organ Harvesting/classification , Aged , Female , Humans , Light , Male , Middle Aged , Scattering, Radiation
18.
Medicine (Baltimore) ; 98(9): e14722, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30817617

ABSTRACT

BACKGROUND: A systematic review and meta-analysis was made to see whether extracorporeal membrane oxygenation (ECMO) in liver transplantation could improve non-heart-beating donors (NHBDs) recipients' outcomes compared with donors after brain death (DBDs) recipients. METHODS: We searched MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials for eligible studies. The study eligible criteria are cohort or case-control studies using ECMO in all NHBDs; studies involved a comparison group of DBDs; and studies evaluated 1-year graft and patient survival rate in NHBDs and DBDs groups. RESULTS: Four studies with 704 patients fulfilled the inclusion criteria. The pooled odds ratio (OR) of 1-year patient survival rate in NHBDs recipients compared with DBDs recipients was 0.8 (95% confidence interval [CI], 0.41-1.55). The pooled OR of 1-year graft survival rate in NHBDs recipients compared with DBDs recipients was 0.46 (95% CI, 0.26-0.81). NHBDs recipients were at greater risks to the occurrence of primary nonfunction (PNF) (OR = 7.12, 95% CI, 1.84-27.52) and ischemic cholangiopathy (IC) (OR = 9.46, 95% CI, 2.76-32.4) than DBDs recipients. CONCLUSIONS: ECMO makes 1-year patient survival acceptable in NHBDs recipients. One-year graft survival rate was lower in NHBDs recipients than in DBDs recipients. Compared with DBDs recipients, the risks to develop PNF and IC were increased among NHBDs recipients.


Subject(s)
Extracorporeal Membrane Oxygenation/methods , Liver Transplantation/methods , Tissue Donors/classification , Brain Death , Graft Rejection/epidemiology , Graft Survival , Humans , Liver Transplantation/mortality
19.
Surgeon ; 17(1): 1-5, 2019 Feb.
Article in English | MEDLINE | ID: mdl-29807673

ABSTRACT

INTRODUCTION: Transplant units are exploring strategies to increase the availability of donor kidneys. The use of en-bloc kidney transplantation (EBKT) from paediatric donors represents one potential solution. We present our long-term experience with paediatric EBKT among adult recipients. METHODS: Twenty-three paediatric to adult EBKTs were performed by the Irish National Kidney Transplant Service between 1990 and 2016. The primary outcome variable was long-term en-bloc allograft survival rate. Secondary outcome variables were incidence of allograft thrombosis, incidence of delayed graft function, overall patient survival and serum creatinine at most recent follow-up. Outcomes were compared to single kidney transplant recipients from the same time period. RESULTS: Mean donor age was 1.8 ± 0.97 years (range: 7 months to 3 years). Recipient age was 46 ± 12 years. Mean follow-up was 133 ± 64 months (range: 36-264). Overall graft survival was 100%, 91% and 80% after 1, 5 and 10 years respectively, compared to 92%, 79% and 61% in single kidney transplant recipients (p = 0.04). There were 5 cases of allograft failure, 3 due to death from unrelated causes. Median time to graft failure was 108 months (range: 36-172). Mean serum creatinine was 72.6 ± 21.6 µmol/l after the follow-up period. There were no cases of graft thrombosis or delayed graft function. Overall survival was 96.4%, 88.0%, 76.23% and 50.5% at 1, 5, 10 and 20 years respectively. CONCLUSION: En-bloc paediatric kidney transplantation is associated with excellent long-term allograft and patient survival and is a feasible strategy for increasing the transplant donor pool in carefully selected recipients.


Subject(s)
Graft Survival , Kidney Failure, Chronic/surgery , Kidney Transplantation/methods , Tissue Donors , Adult , Age Factors , Aged , Child, Preschool , Female , Humans , Infant , Kidney Transplantation/adverse effects , Male , Middle Aged , Retrospective Studies , Tissue Donors/classification , Treatment Outcome
20.
Ann Thorac Surg ; 107(2): 425-429, 2019 02.
Article in English | MEDLINE | ID: mdl-30312610

ABSTRACT

BACKGROUND: There is no objective method to estimate post-lung transplant survival solely on the basis of cumulative donor risk factors. METHODS: The United Network Organ Sharing thoracic transplant database was queried to identify patients who underwent lung transplantation between 2005 and 2015. A Cox proportional hazard model was generated using a training set to identify donor risk factors significantly associated with posttransplant survival. Significant donor risk factors were assigned a score on the basis of their hazard ratio. Donor risk score was calculated for each patient by adding the individual donor risk factor scores. Donors in the validation set were then categorized into low-risk (score = 0), intermediate-risk (score = 1), and high-risk (score >1) categories on the basis of the cumulative risk score. The Lung Allocation Score was used as a surrogate for recipient risk. Survival for each risk group was calculated using Kaplan-Meier curves. RESULTS: The donor risk groups' respective survival at 1 year was 85%, 81%, and 77%, and at 5 years it was 53%, 50%, and 42% (p < 0.001). The combination of low-risk recipients and low-risk donors had 1- and 5-year survival of 89% and 59%, respectively. The combination of high-risk recipients and high-risk donors had 1- and 5-year survival of 70% and 30%, respectively. CONCLUSIONS: The proposed lung donor scoring system is a simple, easy to use method that can aid transplant surgeons in the selection of a potential lung transplant donor. Using the lung donor score in conjunction with the Lung Allocation Score can allow for matching of recipients and donors, to optimize posttransplant outcomes.


Subject(s)
Lung Transplantation/mortality , Registries , Tissue Donors/classification , Tissue and Organ Procurement/methods , Transplant Recipients , Age Factors , Female , Graft Survival , Humans , Kentucky/epidemiology , Male , Middle Aged , Retrospective Studies , Risk Factors , Survival Rate/trends
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