[Organ transplantation in Brazilian States: effectiveness, productivity, and capacity]

LIVER TRANSPLANTATION: TACROLIMUS BLOOD LEVELS VARIATION AND SURVIVAL, REJECTION AND DEATH OUTCOMES

BACKGROUND

Immunosuppressive drugs have important role in transplant of solid grafts, it aim avoid episodes of acute and chronic rejection and improving graft survival and patient survival. In Brazil, in 2016, liver transplantation was the third most frequent, with 1,880 transplants performed, of which 150 in Rio Grande do Sul. Several studies evaluated the association between variability in blood levels of immunosuppressive tacrolimus and late acute cellular graft rejection.

OBJECTIVE

To investigate the association of tacrolimus blood levels with clinical outcomes late acute cellular rejection, death, patient survival and graft survival in patients undergoing liver transplantation.

METHODS

This is a retrospective longitudinal study including patients submitted to adult liver transplantation by the Liver Transplantation Group in the Santa Casa de Misericórdia Hospital of Porto Alegre, from January 2006 to January 2013, and who used tacrolimus as immunosuppressive therapy.

RESULTS

Of the 127 patients included in the study, the majority were male (70.1%), 52-60 years old (33.9%) at the transplant. The most frequent causes of liver transplantation in this series were hepatitis C virus and hepatocellular carcinoma (24.4%) and alcohol (15.7%). Thirteen patients had late acute cellular rejection (10.2%); of these, three had two episodes. Regarding severity classification, seven patients had mild late acute cellular rejection. The mean time of rejection after liver transplantation was 14 months (ranging from 8 to 33 months). Overall survival was 8.98 years. Regarding tacrolimus blood levels, 52 patients with a variation ≥2 standard deviations were identified. Of these patients, eight had rejection; however, the association was not significant (P=0.146). A significant association was found between variation ≥2 standard deviations in tacrolimus blood levels and death (P=0.023) and survival (P=0.019). Regarding 5-year follow-up of graft survival, being two standard deviations above increases by 2.26 times the risk of transplanted graft loss, and for each unit of increase of standard deviation of tacrolimus blood levels there is a two-fold increase in the risk of graft loss in 5 years.

CONCLUSION

Increased risk of graft loss associated with increased standard deviations of tacrolimus blood levels may indicate the need for more rigorous and prospective monitoring of tacrolimus blood levels.

Using data envelopment analysis and the bootstrap method to evaluate organ transplantation efficiency in Brazil

Brazil has the most extensive public program for organ transplantation in the world, and the Brazilian National Health System (SUS) provides full coverage of all costs involved in organ donation, transplants, and post-transplant. Despite the relevance of the subject and the shortage of organs for transplants, transplantation process efficiency assessments are still uncommon in Brazil and abroad. This study aims to evaluate the efficiency of the Brazilian states and the Federal District in transforming potential organ donors into actual donations. We applied data envelopment analysis (DEA) in conjunction with the bootstrap technique, using organ transplantation data from 2018. The bootstrap methods applied (bootstrap technique, the bootstrap-biased scores of efficiency, and the bootstrap bias-corrected scores of efficiency) allow to obtain a confidence interval for DEA scores and provide greater robustness to studies based on DEA methodology. The bootstrap bias-corrected model indicates that there is significant room for improvement in terms of converting potential donors into actual donors. The mean corrected score is 0.55, signalizing that altogether the Brazilian states could maximize in 45% the number of transplanted organs without necessarily increasing the pool of potential donors. The study provides insights into the Brazilian processes of organ donation and transplantation, helping to identify locations in need of resource allocation improvements. Given the scarcity of studies with a joint application of DEA and bootstrap techniques in this crucial health activity, we also intend to methodologically contribute to this type of benchmark analysis, emphasizing the importance of considering measurement errors, randomness, and bias at DEA models.

Conhecimento e atitudes de estudantes da área da saúde sobre a doação de córneas

Objetivos: investigar o conhecimento e as atitudes em relação ao transplante de córneas entre os acadêmicos de cursos de graduação da área da saúde.Métodos: trata-se de um estudo observacional, descritivo, com delineamento transversal, que incluiu os alunos ativos dos cursos de graduação em Fonoaudiologia, Nutrição e Metabolismo, Fisioterapia ou Terapia Ocupacional, oferecidos pela Faculdade de Medicina de Ribeirão Preto (FMRP) da Universidade de São Paulo (USP), campus Ribeirão Preto. Os estudantes responderam em sala de aula a um instrumento estruturado. Foi aplicado um questionário contendo 16 itens sobre o conhecimento em relação ao transplante de córneas, baseado em instrumentos usados em trabalhos similares, e questões sobre as atitudes perante a doação.Resultados: participaram da pesquisa 335 estudantes (83,1% de sexo feminino).Apenas 6,6% declararam saber como proceder para ser um doador de córneas, e 55,5% declararam saber que a retirada da córnea só pode ser realizada após o óbito do doador. Dentre os 16 itens do questionário de conhecimento, os estudantes tiveram uma média de apenas 5,6 respostas corretas, com um desvio padrão de 3,1 acertos.Conclusões: o conhecimento dos estudantes entrevistados sobre a doação de córnea é bastante insatisfatório. Diante da conhecida escassez de córneas para transplantes, são necessárias ações educativas que tornem esses futuros profissionais aptos a divulgarem a prática da doação de córneas entre seus futuros pacientes e respectivos familiares.

Pediatric liver transplantation in Latin America: Where do we stand?

LT started in LA in 1968, and pediatric LT records are available starting in the 1990s. Currently, eight countries perform pediatric LT in LA. Registries by national organizations fail to report robust data on pediatric LT. The aim of this paper was to report on the pediatric LT activity in LA. Data were gathered retrospectively through information available in the national registries websites and from local centers. Of the eight countries that report pediatric LT activity, Brazil, Argentina, Mexico, and Colombia have adequate registries of the numbers of LT performed. These countries concentrate most of the activity for pediatric LT. A total of 4593 pediatric LT were reported in LA. Websites for national organizations do not provide open data on post-transplant survival rates or waiting list mortality. The information herein is based on reports by local centers. Overall, survival from select centers is similar to that reported on North American and European registries, between 80 and 90% in the first year post-transplant. In conclusion, pediatric LT activity is growing in LA, especially in Brazil and Argentina. However, the lack of an appropriate LA registry restricts the assessment of quality and therefore restricts interventions aimed at quality improvements in different regions.

Transplante de órgãos e tecidos: responsabilidades do enfermeiro

No Brasil, mais de 30.000 pacientes aguardam em fila de espera para a realização de transplantes de órgãos. A complexidade desta modalidade terapêutica exige preparo especializado e constante da equipe de profissionais de saúde envolvidos no cuidado do paciente. No cotidiano da prática, o enfermeiro é desafiado a prover assistência com qualidade aos pacientes e familiares. Frente à necessidade de definir o papel do enfermeiro no processo de doação e transplantes e a relevância de divulgação desta área de atuação, elaborou-se a presente revisão narrativa que teve como objetivo tecer considerações sobre o papel e as responsabilidades do enfermeiro que atua em programa de transplantes de órgãos e tecidos. Os textos encontrados foram lidos, organizados e sintetizados em cinco categorias temáticas, a saber: definição do papel do enfermeiro no transplante, diferença entre o enfermeiro clínico e o enfermeiro coordenador de transplante, aspectos legais e éticos, pesquisa e informação e educação em transplantes. Conclui-se que o enfermeiro deve ter conhecimento dos princípios de boas práticas e ter recursos disponíveis para avaliar o mérito, riscos e questões sociais relacionadas aos transplantes.