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1.
BMJ Open ; 13(8): e072073, 2023 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-37586859

RESUMO

OBJECTIVES: The aim of this retrospective cross-sectional study was to assess the performance of paediatric organ donation in intensive care units following neurological determinants of death in Saudi Arabia. DESIGN: Retrospective cross-sectional study. SETTING: Paediatric intensive care units at three tertiary centres over 5 years. PARTICIPANTS: 423 paediatric deaths (<14 years) from January 2017 to December 2021. PRIMARY OUTCOME: Patients were identified as either possible, potential, eligible, approached, consented or actual donors based on organ donation definitions from the WHO, Transplantation Society and UK potential donor audit. SECONDARY OUTCOME: Secondary outcome was causative mechanisms of brain injury in possible donors. Demographics of the study cohort (age, sex, hospital length of stay (LOS), paediatric intensive care unit LOS, pre-existing comorbidities, admission type and diagnosis category) were compared between possible and non-possible donors. Demographics were also compared between patients who underwent neurological determination of death and patients who did not. RESULTS: Among the 423 paediatric deaths, 125 (29.6%) were identified as possible donors by neurological criteria (devastating brain insult with likelihood of brain death, Glasgow Coma Score of 3 and ≥2 absent brainstem reflexes). Of them, 41 (32.8%) patients were identified as potential donors (neurological determination of death examinations initiated by the treating team), while only two became actual donors. The eligible death conversion rate was 6.9%. The reporting rate to organ procurement organisation was 70.7% with a consent rate of 8.3%. The most common causes of brain insult causing death were cardiac arrest (44 of 125 patients, 35.2%), followed by traumatic brain injury and drowning (31 of 125 patients, 24.8%), and intracranial bleeding (13 of 125 patients, 11.4%). CONCLUSION: Major contributors to low actual donation rate were consent, donor identification and donor referral.


Assuntos
Morte Encefálica , Unidades de Terapia Intensiva Pediátrica , Obtenção de Tecidos e Órgãos , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Morte Encefálica/diagnóstico , Estudos Transversais , Estudos Retrospectivos , Arábia Saudita/epidemiologia , Centros de Atenção Terciária , Obtenção de Tecidos e Órgãos/estatística & dados numéricos
2.
Goiânia; SES-GO; ago. 2023. 1-19 p. graf, tab.(Estatística geral de doação de orgãos e transplantes de orgãos - Goiás).
Monografia em Português | LILACS, CONASS, Coleciona SUS, SES-GO | ID: biblio-1444028

RESUMO

Estatística geral de doação de orgãos e transplantes de orgãos - Goiás tem como objetivo transcrever em números os resultados de todo o trabalho executado pela Gerência de Transplantes em Goiás


General statistics of organ donation and organ transplants - Goiás aims to transcribe in numbers the results of all the work carried out by the Transplant Management in Goiás


Assuntos
Humanos , Masculino , Feminino , Transplantes/estatística & dados numéricos , Doadores de Tecidos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Morte Encefálica , Transplante de Medula Óssea/estatística & dados numéricos , Transplante de Córnea/estatística & dados numéricos
4.
Transplant Proc ; 55(2): 268-273, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36822886

RESUMO

BACKGROUND: Various interventions are reportedly effective in promoting organ donor registration. However, the identity of those who best serve as presenters to appeal to the general public is not known. METHODS: A campaign for organ donor registration was conducted through a local newspaper advertisement in Japan. The advertisement appeared in 439,733 copies of the newspaper on January 9, 2021. In addition to the main message, 6 different presenters with photos of their faces and quick response codes were listed in the advertisement, namely a urologist, transplant physician, nephrologist, dialysis physician, ophthalmologist, and kidney transplant recipient who was a nephrologist himself (ie, a recipient and nephrologist). Newspaper readers watched each video about deceased organ donation via the quick response codes, and the number of video views acquired 30 days after the appearance was the main outcome, which was assessed using YouTube analytics. The proportions (95% CI) of people who watched each video among 439,733 newspaper readers were compared among the 6 presenters. RESULTS: The analyzed videos were viewed 262 times. The video produced by the recipient and nephrologist had the highest number of views among the 6 presenters (proportion: 0.019% [95% CI, 0.015-0.023]), followed by the one produced by the dialysis physician (0.011% [95% CI, 0.008-0.014]), the nephrologist (0.010% [95% CI, 0.007-0.014]), the urologist (0.008% [95% CI, 0.006-0.012]), the transplant physician (0.006% [95% CI, 0.004-0.009]), and the ophthalmologist (0.005% [95% CI, 0.004-0.008]). CONCLUSIONS: The appeal by the recipient and the nephrologist reached the highest proportion of people who watched the video about deceased organ donation in Japan.


Assuntos
Publicidade , População do Leste Asiático , Promoção da Saúde , Jornais como Assunto , Transplante de Órgãos , Obtenção de Tecidos e Órgãos , Humanos , Publicidade/métodos , Publicidade/estatística & dados numéricos , População do Leste Asiático/estatística & dados numéricos , Promoção da Saúde/métodos , Promoção da Saúde/estatística & dados numéricos , Japão/epidemiologia , Jornais como Assunto/estatística & dados numéricos , Transplante de Órgãos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Doadores de Tecidos , Transplantes
5.
J Racial Ethn Health Disparities ; 10(3): 1478-1491, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-35595917

RESUMO

Asian Americans are the fastest growing racial group in the USA, but their health disparities are often overlooked. Although their needs for transplantable organs are substantial, they have the lowest rates of organ donation per million compared to other Americans by race. To better understand Asian Americans' disposition toward organ donation, a self-administered survey was developed based on formative data collection and guidance from a Community Advisory Board composed of Asian American stakeholders. The instrument was deployed online, and quota sampling based on the 2017 American Community Survey was used to achieve a sample representative (N = 899) of the Asian American population. Bivariate tests using logistic regression and the chi-square test of independence were performed. Over half (58.1%) of respondents were willing to be organ donors. A majority (81.8%) expressed a willingness to donate a family member's organs, but enthusiasm depended on the family member's donor wishes. Only 9.5% of respondents indicated that the decision to donate their organs was theirs alone to make; the remainder would involve at least one other family member. Other key sociodemographic associations were found. This study demonstrates both the diversity of Asian Americans but also the centrality of the family's role in making decisions about organ donation. Practice and research considerations for the field are also presented.


Assuntos
Asiático , Obtenção de Tecidos e Órgãos , Humanos , Asiático/psicologia , Asiático/estatística & dados numéricos , Família , Conhecimentos, Atitudes e Prática em Saúde , Inquéritos e Questionários , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Doadores de Tecidos
6.
J Heart Lung Transplant ; 42(4): 480-487, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36464610

RESUMO

BACKGROUND: Blood group O candidates have lower lung transplantation rates despite having the most common blood group. We postulated that waitlist outcomes among these candidates and those with other blood types vary with disease severity and lung allocation score (LAS). METHODS: We performed a retrospective cohort study of 32,772 waitlist candidates using the United Network of Organ Sharing registry from May 2005 to 2020. After identifying an interaction between blood group and LAS, we evaluated the association between blood group and waitlist outcomes within LAS quartiles using unadjusted and adjusted competing risk models. RESULTS: In the lowest LAS quartile, blood group O had a 20% reduced transplantation rate (SHR: 0.80, 95%CI: 0.75-0.85) and higher waitlist death/removal (1.33, 95%CI: 1.15-1.55) compared with group A. Blood group AB had a 52% higher transplantation rate (SHR: 1.52, 95%CI: 1.34-1.73) in the lowest LAS quartile compared with group A. In the highest LAS quartile, there was no difference in transplantation rates between groups O and A. In contrast, group B had a 19% reduced transplantation rate (SHR, 0.81 95%CI: 0.73-0.89) and AB had a 28% reduced transplantation rate (SHR: 0.72, 95%CI: 0.61-0.86) in the highest LAS quartile. Additionally, groups B and AB had increased risk of waitlist death/removal in the highest LAS quartile compared with A (SHR: 1.27, 95%CI: 1.08-1.48; SHR: 1.31, 95%CI: 1.00-1.72). CONCLUSIONS: Waitlist outcomes among ABO blood groups vary depending on illness severity, which is represented by LAS. Blood group O has lower transplantation rates at low LAS while groups B and AB have lower transplantation rates at high LAS.


Assuntos
Sistema ABO de Grupos Sanguíneos , Pneumopatias , Transplante de Pulmão , Gravidade do Paciente , Obtenção de Tecidos e Órgãos , Listas de Espera , Humanos , Pulmão , Transplante de Pulmão/estatística & dados numéricos , Estudos Retrospectivos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Sistema de Registros/estatística & dados numéricos , Estados Unidos/epidemiologia , Pneumopatias/epidemiologia , Pneumopatias/cirurgia
7.
Am J Transplant ; 22 Suppl 2: 519-552, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35266619

RESUMO

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.


Assuntos
COVID-19 , Transplante de Órgãos , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos , Adolescente , COVID-19/epidemiologia , Humanos , Transplante de Órgãos/normas , Transplante de Órgãos/estatística & dados numéricos , Sistema de Registros , SARS-CoV-2 , Doadores de Tecidos/classificação , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/tendências
8.
ScientificWorldJournal ; 2022: 5206043, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35250393

RESUMO

BACKGROUND: Visual impairments have physical, emotional, social, and economical consequences and are a crucial element influencing one's quality of life. A total of 1.285 million people are estimated to be visually impaired worldwide of which 39 million are categorised as blind. These figures are startling, given that 80 percent of known vision impairments are either treatable or preventable. Corneal transplants appear to be our best hope for resolving this problem; however, a global shortage of available donors continues to dampen efforts addressing this issue. METHODS: This two-year cross-sectional study employed a convenience sampling technique and a standardised questionnaire to survey 150 paramedical and allied health science students at a tertiary care teaching hospital and assessed the awareness, knowledge, willingness and barriers regarding eye donation. RESULTS: The study revealed a 93.3% awareness rate of the donation procedure, of which 46% attributed their awareness to media sources. However, other aspects assessed had much lower awareness rates; when the eyes are donated (53.3%), optimal time period for retrieval of tissue/organ (54%), ideal part transplanted (54%), age limit not restricting donation (67%), donation by donors using spectacles (48%), confidentiality of the donor and recipient (54%), hospital having the facility of an eye bank (63%). 49 percent of the respondents were willing to pledge themselves as eye donors, and a majority of the unwilling respondents reported that familial opposition was the reason for their hesitation. CONCLUSION: Knowledge levels appear to be below expectations, and more effort is required to ensure that knowledge is imparted to our healthcare practitioners, who will then transfer this knowledge to the population, resulting in an increase in donation rates.


Assuntos
Pessoal Técnico de Saúde/psicologia , Transplante de Córnea , Conhecimentos, Atitudes e Prática em Saúde , Estudantes de Ciências da Saúde/psicologia , Obtenção de Tecidos e Órgãos , Adolescente , Adulto , Pessoal Técnico de Saúde/educação , Pessoal Técnico de Saúde/estatística & dados numéricos , Transplante de Córnea/psicologia , Transplante de Córnea/estatística & dados numéricos , Estudos Transversais , Olho , Feminino , Humanos , Índia , Masculino , Estudantes de Ciências da Saúde/estatística & dados numéricos , Inquéritos e Questionários , Doadores de Tecidos/psicologia , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Adulto Jovem
9.
J Am Coll Surg ; 234(2): 115-120, 2022 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-35213430

RESUMO

BACKGROUND: Living donor liver transplantation (LDLT) continues to be the primary modality of liver transplantation in Asia, but it accounts for about 5% of all liver transplantations in the US. ABO incompatibility is the primary reason motivated donors are declined. Although kidney paired exchanges are common, liver paired exchange (LPE) is still evolving in the US. STUDY DESIGN: This is a retrospective review (between January 1, 2019, and July 31, 2021) of our initial experience with LPE. RESULTS: A total of 10 LPEs (20 LDLTs) were performed during the study period. Seven LPEs were initiated by a nondirected O donor. The other 3 pair sets involved 1 ABO compatible and 1 ABO incompatible pair. Transplantations in a pair set were completed within a mean of 4.8 (range 1-14) days of each other. All 20 donors are doing well with no major complications at 12.7 (range 1-20) months. Seventeen of 20 recipients are alive and have good allograft function. One recipient died in the early postoperative period. Two late deaths of patients with functioning allografts were due to COVID-19 (at 8 months) and peritoneal carcinomatosis and gram-negative sepsis (at 9 months). CONCLUSIONS: LPE is feasible in a high-volume LDLT center and is a useful option to increase LDLT by overcoming ABO incompatibility. Nondirected donors can be utilized to initiate an LPE.


Assuntos
Transplante de Fígado/estatística & dados numéricos , Doadores Vivos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/métodos , Sistema ABO de Grupos Sanguíneos , Adolescente , Adulto , Idoso , Incompatibilidade de Grupos Sanguíneos , COVID-19/mortalidade , Causas de Morte , Feminino , Humanos , Rim , Doadores Vivos/provisão & distribuição , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Transplantados/estatística & dados numéricos , Adulto Jovem
10.
Goiânia; SES-GO; jan. 2022. 26 p. graf, tab.
Não convencional em Português | LILACS, CONASS, Coleciona SUS, SES-GO | ID: biblio-1398331

RESUMO

Esta Análise Situacional dos Transplantes em Goiás mostra tudo que está relacionado às modalidades de transplantes feitas no Estado, além de toda a estatística dos transplantes no período pré-pandemia/pandemia, entre os anos de 2019 e 2021. São dados extremamente importantes que mostram toda a evolução do sistema de transplantes em Goiás, com números, gráficos compara-vos e planilhas, e expondo, também, a sua estrutura organizacional


This Situational Analysis of Transplants in Goiás shows everything related to the modalities of transplants made in the state, in addition to all the statistics of transplants in the pre-pandemic/pandemic period, between the years 2019 and 2021. These are extremely important data that show all the evolution of the transplant system in Goiás, with numbers, comparative charts and spreadsheets, and also exposing its organizational structure


Assuntos
Humanos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Morte Encefálica/diagnóstico , Transplante de Córnea/estatística & dados numéricos , Transplante de Rim/estatística & dados numéricos
11.
Hepatology ; 75(3): 634-645, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34724224

RESUMO

BACKGROUND AND AIMS: The European Liver Transplant Registry (ELTR) has collected data on liver transplant procedures performed in Europe since 1968. APPROACH AND RESULTS: Over a 50-year period (1968-2017), clinical and laboratory data were collected from 133 transplant centers and analyzed retrospectively (16,641 liver transplants in 14,515 children). Data were analyzed according to three successive periods (A, before 2000; B, 2000-2009; and C, since 2010), studying donor and graft characteristics and graft outcome. The use of living donors steadily increased from A to C (A, n = 296 [7%]; B, n = 1131 [23%]; and C, n = 1985 [39%]; p = 0.0001). Overall, the 5-year graft survival rate has improved from 65% in group A to 75% in group B (p < 0.0001) and to 79% in group C (B versus C, p < 0.0001). Graft half-life was 31 years, overall; it was 41 years for children who survived the first year after transplant. The late annual graft loss rate in teenagers is higher than that in children aged <12 years and similar to that of young adults. No evidence for accelerated graft loss after age 18 years was found. CONCLUSIONS: Pediatric liver transplantation has reached a high efficacy as a cure or treatment for severe liver disease in infants and children. Grafts that survived the first year had a half-life similar to standard human half-life. Transplantation before or after puberty may be the pivot-point for lower long-term outcome in children. Further studies are necessary to revisit some old concepts regarding transplant benefit (survival time) for small children, the role of recipient pathophysiology versus graft aging, and risk at transition to adult age.


Assuntos
Rejeição de Enxerto/epidemiologia , Sobrevivência de Enxerto/fisiologia , Transplante de Fígado , Obtenção de Tecidos e Órgãos , Imunologia de Transplantes/fisiologia , Adolescente , Fatores Etários , Criança , Europa (Continente)/epidemiologia , Feminino , Humanos , Lactente , Transplante de Fígado/efeitos adversos , Transplante de Fígado/métodos , Transplante de Fígado/estatística & dados numéricos , Transplante de Fígado/tendências , Doadores Vivos/estatística & dados numéricos , Masculino , Sistema de Registros/estatística & dados numéricos , Tempo , Obtenção de Tecidos e Órgãos/organização & administração , Obtenção de Tecidos e Órgãos/estatística & dados numéricos
12.
J Hepatol ; 76(3): 628-638, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34785324

RESUMO

BACKGROUND & AIMS: Donor death is the most serious complication of living liver donation but is reported rarely. We investigated the actual mortality of living liver donors (LLDs) compared with matched control groups based on analysis of the Korean National Health Insurance Services (NHIS) database. METHODS: This cohort study included 12,372 LLDs who donated a liver graft between 2002 and 2018, and were registered in the Korean Network for Organ Sharing. They were compared to 3 matched control groups selected from the Korean NHIS and comprising a total of 123,710 individuals: healthy population (Group I); general population without comorbidities (Group II); and general population with comorbidities (Group III). RESULTS: In this population, 78.5% of living liver donors were 20-39 years old, and 64.7% of all donors were male. Eighty-nine donors (0.7%) in the LLD group died (68 males and 21 females), a mortality rate (/1,000 person-years) of 0.91 (0.74-1.12). Mortality rate ratio and the adjusted hazard ratio of the LLD group was 2.03 (1.61-2.55) and 1.71 (1.31-2.25) compared to Control Group I, 0.75 (0.60-0.93) and 0.63 (0.49-0.82) compared to Control Group II, and 0.58 (0.46-0.71) and 0.49 (0.39-0.60) compared to Control Group III. LLD group, depression, and lower income were risk factors for adjusted mortality. The incidence of liver failure, depression, cancer, diabetes, hypertension, brain infarction, brain hemorrhage, and end-stage renal disease in the LLD group was significantly higher than in Control Group I. CONCLUSIONS: Outcomes of the LLD group were worse than those of the matched healthy control group despite the small number of deaths and medical morbidities in this group. LLDs should receive careful medical attention for an extended period after donation. LAY SUMMARY: The incidence of mortality, liver failure, depression, cancer, diabetes, hypertension, brain infarction, brain hemorrhage, and end-stage renal disease in the living liver donor group was significantly higher than in the matched healthy group. Careful donor evaluation and selection processes can improve donor safety and enable safe living donor liver transplantation.


Assuntos
Transplante de Fígado/efeitos adversos , Doadores Vivos/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/normas , Adulto , Estudos de Coortes , Feminino , Humanos , Incidência , Fígado/fisiopatologia , Fígado/cirurgia , Transplante de Fígado/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde/métodos , República da Coreia/epidemiologia , Fatores de Risco , Obtenção de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos
13.
J Heart Lung Transplant ; 41(1): 95-103, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34666942

RESUMO

BACKGROUND: The United States National Organ Procurement Transplant Network (OPTN) implemented changes to the adult heart allocation system to reduce waitlist mortality by improving access for those at greater risk of pre-transplant death, including patients on short-term mechanical circulatory support (sMCS). While sMCS increased, it is unknown whether the increase occurred equitably across centers. METHODS: The OPTN database was used to assess changes in use of sMCS at time of transplant in the 12 months before (pre-change) and after (post-change) implementation of the allocation system in October 2018 among 5,477 heart transplant recipients. An interrupted time series analysis comparing use of bridging therapies pre- and post-change was performed. Variability in the proportion of sMCS use at the center level pre- and post-change was determined. RESULTS: In the month pre-change, 9.7% of patients were transplanted with sMCS. There was an immediate increase in sMCS transplant the following month to 32.4% - an absolute and relative increase of 22.7% and 312% (p < 0.001). While sMCS use was stable pre-change (monthly change 0.0%, 95% CI [-0.1%,0.1%]), there was a continuous 1.2%/month increase post-change ([0.6%,1.8%], p < 0.001). Center-level variation in sMCS use increased substantially after implementation, from a median (interquartile range) of 3.85% (10%) pre-change to 35.7% (30.6%) post-change (p < 0.001). CONCLUSIONS: Use of sMCS at time of transplant increased immediately and continued to expand following heart allocation policy changes. Center-level variation in use of sMCS at the time of transplant increased compared to pre-change, which may have negatively impacted equitable access to heart transplantation.


Assuntos
Equidade em Saúde , Política de Saúde , Transplante de Coração , Coração Auxiliar , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/normas , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Estados Unidos
14.
J Heart Lung Transplant ; 41(2): 217-225, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34802876

RESUMO

BACKGROUND: The United States (US) Lung Allocation Score (LAS) relies on the performance of 2 survival models that estimate waitlist and post-transplant survival. These models were developed using data from 2005 to 2008, and it is unknown if they remain accurate. METHODS: We performed an observational cohort study of US lung transplantation candidates and recipients greater than 12 years of age between February 19, 2015 and February 19, 2019. We evaluated the LAS waitlist and post-transplant models with the concordance probability estimate and by comparing predicted vs observed 1-year restricted mean survival times by risk decile. We then compared a nonparametric estimate of the observed LAS with the predicted LAS for each percentile of recipients. RESULTS: The waitlist model ranked candidates (N = 11,539) in the correct risk order 72% of the time (95% CI 71%-73%), and underestimated candidate one-year survival by 136 days for the highest risk decile (p < 0.001). The post-transplant model ranked recipients (N = 9,377) in the correct risk order 57% of the time (95% CI 55-58%), and underestimated recipient one-year survival by 70 days for the highest risk decile (p < 0.001). Overall, the LAS at transplant explained only 56% of the variation in observed outcomes, and was increasingly inaccurate at higher predicted values. CONCLUSIONS: The waitlist and the post-transplant models that constitute the LAS are inaccurate, limiting the ability of the system to rank candidates on the waitlist in the correct order. The LAS should therefore be updated and the underlying models should be modernized.


Assuntos
Transplante de Pulmão/mortalidade , Sistema de Registros , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Transplantados/estatística & dados numéricos , Listas de Espera/mortalidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Fatores de Tempo , Estados Unidos/epidemiologia
15.
J Hepatol ; 76(3): 619-627, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34774638

RESUMO

BACKGROUND & AIMS: In Italy, since August 2014, liver transplant (LT) candidates with model for end-stage liver disease (MELD) scores ≥30 receive national allocation priority. This multicenter cohort study aims to evaluate time on the waiting list, dropout rate, and graft survival before and after introducing the macro-area sharing policy. METHODS: A total of 4,238 patients registered from 2010 to 2018 were enrolled and categorized into an ERA-1 Group (n = 2,013; before August 2014) and an ERA-2 Group (n = 2,225; during and after August 2014). A Cox proportional hazards model was used to estimate the hazard ratio (HR) of receiving a LT or death between the two eras. The Fine-Gray model was used to estimate the HR for dropout from the waiting list and graft loss, considering death as a competing risk event. A Fine-Gray model was also used to estimate risk factors of graft loss. RESULTS: Patients with MELD ≥30 had a lower median time on the waiting list (4 vs.12 days, p <0.001) and a higher probability of being transplanted (HR 2.27; 95% CI 1.78-2.90; p = 0.001) in ERA-2 compared to ERA-1. The subgroup analysis on 3,515 LTs confirmed ERA-2 (odds ratio 0.56; 95% CI 0.46-0.68; p = 0.001) as a protective factor for better graft survival rate. The protective variables for lower dropouts on the waiting list were: ERA-2, high-volume centers, no competition centers, male recipients, and hepatocellular carcinoma. The protective variables for graft loss were high-volume center and ERA-2, while MELD ≥30 remained related to a higher risk of graft loss. CONCLUSIONS: The national MELD ≥30 priority allocation was associated with improved patient outcomes, although MELD ≥30 was associated with a higher risk of graft loss. Transplant center volumes and competition among centers may have a role in recipient prioritization and outcomes. CLINICAL TRIAL NUMBER: NCT04530240 LAY SUMMARY: Italy introduced a new policy in 2014 to give national allocation priority to patients with a model for end-stage liver disease (MELD) score ≥30 (i.e. very sick patients). This policy has led to more liver transplants, fewer dropouts, and shorter waiting times for patients with MELD ≥30. However, a higher risk of graft loss still burdens these cases. Transplant center volumes and competition among centers may have a role in recipient prioritization and outcomes.


Assuntos
Transplante de Fígado/efeitos adversos , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Fatores de Tempo , Obtenção de Tecidos e Órgãos/normas , Estudos de Coortes , Doença Hepática Terminal/epidemiologia , Doença Hepática Terminal/mortalidade , Doença Hepática Terminal/cirurgia , Feminino , Sobrevivência de Enxerto/fisiologia , Política de Saúde/legislação & jurisprudência , Política de Saúde/tendências , Humanos , Itália , Transplante de Fígado/reabilitação , Transplante de Fígado/estatística & dados numéricos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Avaliação de Resultados em Cuidados de Saúde/métodos , Seleção de Pacientes , Modelos de Riscos Proporcionais , Fatores de Risco , Obtenção de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Listas de Espera/mortalidade
16.
J Cardiovasc Med (Hagerstown) ; 23(3): 167-175, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34420009

RESUMO

Heart transplantation represents the gold standard for end-stage heart failure. However, due to the increasing demand and the shortage of available organs, donor supply remains the main limitation. Marginal donor hearts in high-risk candidates who do not meet standard listing criteria are the only alternative when life expectancy is limited, but their use is still debated. Surgical correction of detected coronary lesions or valvular heart defects allows further enlargement of the number of available organs. In this article, we offer a literature review on this topic and report two marginal donor hearts with angiography evidence of coronary stenosis and preserved ventricular function, which underwent concomitant myocardial revascularization during heart implantation.


Assuntos
Insuficiência Cardíaca/cirurgia , Transplante de Coração/estatística & dados numéricos , Revascularização Miocárdica/métodos , Doadores de Tecidos/provisão & distribuição , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
17.
J Hepatol ; 76(2): 371-382, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34655663

RESUMO

BACKGROUND & AIMS: The concept of benchmarking is established in the field of transplant surgery; however, benchmark values for donation after circulatory death (DCD) liver transplantation are not available. Thus, we aimed to identify the best possible outcomes in DCD liver transplantation and to propose outcome reference values. METHODS: Based on 2,219 controlled DCD liver transplantations, collected from 17 centres in North America and Europe, we identified 1,012 low-risk, primary, adult liver transplantations with a laboratory MELD score of ≤20 points, receiving a DCD liver with a total donor warm ischemia time of ≤30 minutes and asystolic donor warm ischemia time of ≤15 minutes. Clinically relevant outcomes were selected and complications were reported according to the Clavien-Dindo-Grading and the comprehensive complication index (CCI). Corresponding benchmark cut-offs were based on median values of each centre, where the 75th-percentile was considered. RESULTS: Benchmark cases represented between 19.7% and 75% of DCD transplantations in participating centres. The 1-year retransplant and mortality rates were 4.5% and 8.4% in the benchmark group, respectively. Within the first year of follow-up, 51.1% of recipients developed at least 1 major complication (≥Clavien-Dindo-Grade III). Benchmark cut-offs were ≤3 days and ≤16 days for ICU and hospital stay, ≤66% for severe recipient complications (≥Grade III), ≤16.8% for ischemic cholangiopathy, and ≤38.9 CCI points 1 year after transplant. Comparisons with higher risk groups showed more complications and impaired graft survival outside the benchmark cut-offs. Organ perfusion techniques reduced the complications to values below benchmark cut-offs, despite higher graft risk. CONCLUSIONS: Despite excellent 1-year survival, morbidity in benchmark cases remains high. Benchmark cut-offs targeting morbidity parameters offer a valid tool to assess the protective value of new preservation technologies in higher risk groups and to provide a valid comparator cohort for future clinical trials. LAY SUMMARY: The best possible outcomes after liver transplantation of grafts donated after circulatory death (DCD) were defined using the concept of benchmarking. These were based on 2,219 liver transplantations following controlled DCD donation in 17 centres worldwide. Donor and recipient combinations with higher risk had significantly worse outcomes. However, the use of novel organ perfusion technology helped high-risk patients achieve similar outcomes as the benchmark cohort.


Assuntos
Transplante de Fígado/efeitos adversos , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Choque/etiologia , Idoso , Área Sob a Curva , Benchmarking/métodos , Benchmarking/estatística & dados numéricos , Estudos de Coortes , Feminino , Humanos , Estimativa de Kaplan-Meier , Transplante de Fígado/métodos , Transplante de Fígado/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Escores de Disfunção Orgânica , Avaliação de Resultados em Cuidados de Saúde/métodos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Modelos de Riscos Proporcionais , Curva ROC , Choque/epidemiologia , Obtenção de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos
18.
Rev. bras. oftalmol ; 81: e0037, 2022. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1376781

RESUMO

ABSTRACT Objective: To outline the epidemiological profile of cornea donors and recipients before reaching queue zero. Methods: Epidemiological study, of quantitative approach, with transversal, analytical design, analyzing database records from the Health Secretary of the State of Ceará, from 2013 to 2015. Results: We obtained 1,558 cornea donors and 2,287 cornea recipients from 2013 to 2015. Most donors were male, capital residents, from 21 to 40 years old. Of donated eyeballs, 14.52% were disposed, due to poor condition, infiltration or positive serology. The recipients were predominantly women over 60 years old. The procedures were mostly elective, due to bullous keratopathy (28%). Regarding emergency transplants, ulcer (38.51%) and retransplant (35.14%) were most prevalent. Predominantly, transplants were funded by the Unified Health System. Conclusion: The majority of patients who were submitted to corneal transplantation are senile, especially females, therefore should be cautiously observed. On the other hand, donors are mainly male and young, reflecting the high number of tragic accidents. The surgery for bullous keratopathy is the most frequent among elective transplants, while the ulcer surgery is the main cause of emergency procedures. The fact that most surgeries were financed by the Unified Health System reflects the importance of this system.


RESUMO Objetivo: Traçar o perfil epidemiológico dos doadores e receptores de córnea antes de atingir a Fila Zero. Métodos: Estudo epidemiológico, de abordagem quantitativa, com delineamento transversal e analítico, analisando registros da base de dados da Secretaria de Saúde do Estado do Ceará, de 2013 a 2015. Resultados: Foram obtidos 1.558 doadores de córnea e 2.287 receptores de córnea, de 2013 a 2015. A maioria dos doadores era homem, procedente da capital, de 21 a 40 anos. Dentre os globos oculares doados, 14,52% foram descartados por má condição, infiltração ou sorologia positiva. Os receptores eram predominantemente mulheres acima de 60 anos de idade. Os procedimentos foram majoritariamente eletivos, devido à ceratopatia bolhosa (28%). Já para transplantes de emergência, a úlcera (38,51%) e o retransplante (35,14%) foram os mais prevalentes. Em geral, os transplantes foram custeados pelo Sistema Único de Saúde. Conclusão: A maioria dos pacientes submetidos a transplantes de córnea foram do grupo etário senil, principalmente do sexo feminino, devendo esse grupo ser observado com cautela. Em contrapartida, os doadores eram, principalmente, homens e jovens, refletindo o alto número de pessoas que morrem devido a acidentes trágicos. A cirurgia de ceratopatia bolhosa foi a mais frequente dentre os transplantes eletivos; já a de úlcera foi a principal causa dos procedimentos de emergência. O fato de a maioria das cirurgias ter sido financiada pelo Sistema Único de Saúde reflete a importância desse sistema.


Assuntos
Humanos , Masculino , Feminino , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Transplante de Córnea/estatística & dados numéricos , Bancos de Olhos/estatística & dados numéricos , Transplantados/estatística & dados numéricos , Agendamento de Consultas , Doadores de Tecidos/provisão & distribuição , Obtenção de Tecidos e Órgãos/normas , Obtenção de Tecidos e Órgãos/organização & administração , Estudos Epidemiológicos , Registros , Estudos Transversais , Listas de Espera , Transplante de Córnea/normas , Bancos de Olhos/organização & administração , Bancos de Olhos/provisão & distribuição
19.
Rev. bras. oftalmol ; 81: e0009, 2022. tab, graf
Artigo em Português | LILACS | ID: biblio-1360920

RESUMO

RESUMO Objetivo: Tendo em vista que o sistema visual representa uma via de contaminação para o novo Corona vírus, a The Global Alliance of Eye Bank Association (GAEBA) divulgou um guideline preconizando a prevenção de transmissão do vírus entre o doadores de tecido ocular e o pacientes receptores, o que resultou em uma diminuição no número de ceratoplastias e aumento de filas de espera para transplantes de córnea (TC) em todo o mundo. Nesse sentido, o presente trabalho tem por objetivo analisar a situação do transplante de córnea (TC) no estado de Alagoas durante o primeiro ano de pandemia da COVID-19. Métodos: Trata-se de um estudo analítico, transversal, observacional utilizando dados provenientes de 3 fontes diferentes: Banco de Tecido Ocular Humano de Alagoas (BTO-AL), Registro Brasileiro de Transplantes (RBT) e Agência Nacional de Vigilância Sanitária (ANVISA). Resultados: Durante os últimos seis anos, foram realizados 284 TCs em Alagoas, segundo dados do Banco de Transplante de Olhos do estado (BTO), já segundo a Registro Brasileiro de Transplantes (RBT) foram realizados 451 TCs. A porcentagem de córneas não oriundas do BTO de Alagoas se mostrou crescente até 2019, porém decresceu em 2020, e no primeiro ano de pandemia , apenas 11,66% da necessidade anual estimada foi atendida, sendo o período com menor número de TCs realizados entre os seis anos analisados na pesquisa. Conclusão: O estudo demonstra o declínio na doação e realização de transplantes de córnea durante o primeiro ano da pandemia da COVID-19 em Alagoas.


ABSTRACT Objective: Considering the visual system is one source of contamination for the new coronavirus, The Global Alliance of Eye Bank Association (GAEBA) released a guideline recommending prevention of virus transmission between eye tissue donors and recipients, which resulted in a reduction of keratoplasties and increase in the waiting lists for corneal transplants worldwide. Hence, this work aims to analyze the situation of corneal transplantation in the state of Alagoas, during the first year of COVID-19 pandemic. Methods: This is an analytical, cross-sectional, observational study using data from 3 different sources: Human Eye Tissue Bank of Alagoas (BTO-AL), Brazilian Transplant Registry (RBT) and National Health Surveillance Agency (ANVISA). Results: During the past six years, 284 corneal transplants were performed in Alagoas, according to data from the Eye Transplant Bank (BTO) of the state, whereas according to the Brazilian Transplant Registry (RBT) 451 corneal transplants were performed. The percentage of corneas not coming from the BTO of Alagoas increased until 2019 but dropped in 2020. In the first year of the pandemic, only 11.66% of estimated annual need was met, and this period had the lowest number of corneal transplants performed out of the six years analyzed in the research. Conclusion: The study demonstrated the decline in donation and performance of corneal transplants during the first year of the COVID-19 pandemic in Alagoas.


Assuntos
Humanos , Masculino , Feminino , Transplante de Córnea/estatística & dados numéricos , Infecções por Coronavirus/prevenção & controle , COVID-19/epidemiologia , Doadores de Tecidos/provisão & distribuição , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Estudos Transversais , Bancos de Olhos , Pandemias , Estudo Observacional
20.
Rev. bras. oftalmol ; 81: e0062, 2022. graf
Artigo em Português | LILACS | ID: biblio-1407673

RESUMO

RESUMO Objetivo conhecer o perfil clínico e cirúrgico de pacientes que realizaram ceratoplastia em um hospital universitário. Métodos Trata-se de um estudo observacional analítico, do tipo transversal. Foram avaliadas as fichas de descrição cirúrgica dos prontuários dos pacientes transplantados nos anos de 2019 e 2020, a fim de analisar dados sociais e clínicos. Os dados foram tratados por meio do programa Microsoft Office Excel 2017. As variáveis numéricas foram analisadas com auxílio da estatística descritiva no programa Bioestat versão 5.3 (frequência, porcentagem, média). As informações descritivas foram analisadas qualitativamente. Resultados Foram realizados 167 procedimentos nesse período, notando-se faixa etária média de 45 anos, indivíduos do sexo masculino, receptores de tecidos doados no Pará ou provenientes do Estado do Ceará. Os transplantes foram majoritariamente ópticos, eletivos, com botão corneano doador em média de 8mm e receptor de 7,5mm. Quanto às indicações, a maioria era decorrente de distrofias corneanas, seguidas de leucoma e perfuração do globo ocular, com predominância da técnica cirúrgica penetrante, sutura interrompida e anestesia local. Conclusão O conhecimento desses dados é importante para considerar que o perfil clínico e cirúrgico dos pacientes do hospital estudado se aproxima da realidade nacional, sobretudo na indicação clínica.


ABSTRACT Objective to investigate the clinical and surgical profile of patients who performed keratoplasty in a university hospital. Methods It is a cross-sectional, observational study. The surgical description from the medical records of transplanted patients in the years 2019 and 2020 was assessed to analyze social and clinical data. Data were processed using the Microsoft Office Excel 2017 program. Numerical variables were analyzed using descriptive statistics in the Bioestat program version 5.3. Descriptive information was analyzed qualitatively. Results 167 procedures were performed in this period, with an average age of 45 years old, male individuals, recipients of tissue donated in Pará or sent from the State of Ceará. Transplants were mostly optic, elective, with an average corneal donor button of 8mm and recipient of 7.5mm. As for the indications, most were due to corneal dystrophies, followed by leukoma and perforation of the eyeball, with a predominance of the penetrating surgical technique, interrupted suture, and local anesthesia. Conclusion The knowledge of these data is important to consider that the clinical and surgical profile of patients in the hospital studied is close to the national reality, especially in clinical indication.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Transplante de Córnea/estatística & dados numéricos , Doenças da Córnea/epidemiologia , Perfil de Saúde , Estudos Transversais , Estudo Observacional , COVID-19 , Hospitais Universitários/estatística & dados numéricos
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