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1.
Int J Cardiovasc Imaging ; 37(10): 3027-3037, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33997925

RESUMO

To determine whether left ventricular (LV) global longitudinal strain (GLS) measured by feature-tracking (FT) cardiac magnetic resonance (CMR) improves after kidney transplantation (KT) and to analyze associations between LV GLS, reverse remodeling and myocardial tissue characteristics. This is a prospective single-center cohort study of kidney transplant recipients who underwent two CMR examinations in a 3T scanner, including cines, tagging, T1 and T2 mapping. The baseline exam was done up to 10 days after transplantation and the follow-up after 6 months. Age and sex-matched healthy controls were also studied for comparison. A total of 44 patients [mean age 50 ± 11 years-old, 27 (61.4%) male] completed the two CMR exams. LV GLS improved from - 13.4% ± 3.0 at baseline to - 15.2% ± 2.7 at follow-up (p < 0.001), but remained impaired when compared with controls (- 17.7% ± 1.5, p = 0.007). We observed significant correlation between improvement in LV GLS with reductions of left ventricular mass index (r = 0.356, p = 0.018). Improvement in LV GLS paralleled improvements in LV stroke volume index (r = - 0.429, p = 0.004), ejection fraction (r = - 0.408, p = 0.006), global circumferential strain (r = 0.420, p = 0.004) and global radial strain (r = - 0.530, p = 0.002). There were no significant correlations between LV GLS, native T1 or T2 measurements (p > 0.05). In this study, we demonstrated that LV GLS measured by FT-CMR improves 6 months after KT in association with reverse remodeling, but not native T1 or T2 measurements.


Assuntos
Transplante de Rim , Estudos de Coortes , Humanos , Recém-Nascido , Transplante de Rim/efeitos adversos , Imagem Cinética por Ressonância Magnética , Espectroscopia de Ressonância Magnética , Masculino , Valor Preditivo dos Testes , Estudos Prospectivos , Volume Sistólico , Função Ventricular Esquerda
2.
J. bras. nefrol ; 41(4): 534-538, Out.-Dec. 2019. tab
Artigo em Inglês | LILACS | ID: biblio-1056606

RESUMO

ABSTRACT Introduction: The number of incident and prevalent patients on dialysis has increased, as well as the number of candidates for renal transplantation in Brazil, without a proportional increase in the number of organ donors. The use of expanded kidneys, as to renal function, may be an alternative to increase the supply of organs. Objective: to discuss the feasibility of using expanded kidneys for renal function, which are in severe acute renal injury. Methods: All cases of renal transplantation of deceased donors performed at the Hospital das Clínicas de Botucatu of UNESP, from January 2010 to June 2018, totaling 732 cases were evaluated. Cases with final donor creatinine greater than 6 mg/dL were selected. Results: four patients were selected, of whom all donors were in severe acute kidney injury (AKI). These donors presented rhabdomyolysis as a probable cause of severe AKI, were young, with no comorbidities and had decreased urinary volume in the last 24 hours. The clinical evolution of all the recipients was satisfactory, with a glomerular filtration rate after transplantation ranging from 48 to 98 mL/min/1.73 m2. Conclusion: this series of cases shows the possibility of using renal donors in severe AKI, provided the following are respected: donor age, rhabdomyolysis as the cause of AKI, and implantation-favorable biopsy findings. Additional studies with better designs, larger numbers of patients and longer follow-up times are needed.


RESUMO Introdução: O número de pacientes incidentes e prevalentes em diálise tem aumentado, assim como o número de candidatos ao transplante renal no Brasil, sem um aumento proporcional do número de doadores de órgãos. O uso de rins expandidos, quanto à função renal, pode ser uma alternativa para aumentar a oferta de órgãos. Objetivo: discutir a viabilidade do uso de rins expandidos quanto à função renal, que estejam em lesão renal aguda severa. Métodos: foram avaliados todos os casos de transplante renal de doador falecido realizados no Hospital das Clínicas de Botucatu da UNESP, de janeiro de 2010 a junho de 2018, totalizando 732 casos. Selecionou-se os casos com creatinina final do doador maior do que 6 mg/dL. Resultados: quatro pacientes foram selecionados, dos quais todos os doadores estavam em lesão renal aguda (LRA) severa. Esses doadores apresentavam rabdomiólise como provável causa de LRA severa, eram jovens, sem comorbidades e apresentavam diminuição de volume urinário nas últimas 24 horas. A evolução clínica de todos os receptores foi satisfatória, com taxa de filtração glomerular após o transplante variando entre 48 a 98 mL/min/1,73m2. Conclusão: essa série de casos mostra a possibilidade de utilização de doadores renais em LRA severa, desde que respeitadas as condições seguintes: idade do doador, rabdomiólise como causa de LRA e achados de biópsia favoráveis à implantação. Estudos adicionais com melhores desenhos, maior número de pacientes e maiores tempos de seguimento são necessários.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Rabdomiólise/diagnóstico , Doadores de Tecidos/estatística & dados numéricos , Transplante de Rim/métodos , Função Retardada do Enxerto/diagnóstico , Injúria Renal Aguda/cirurgia , Projetos de Pesquisa , Brasil/epidemiologia , Cadáver , Estudos de Viabilidade , Estudos Retrospectivos , Diálise Renal/estatística & dados numéricos , Transplante de Rim/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde , Creatinina/sangue , Função Retardada do Enxerto/etiologia , Injúria Renal Aguda/etiologia , Taxa de Filtração Glomerular/fisiologia , Sobrevivência de Enxerto/fisiologia , Rim/fisiopatologia
3.
J Bras Nefrol ; 41(4): 534-538, 2019.
Artigo em Inglês, Português | MEDLINE | ID: mdl-31508667

RESUMO

INTRODUCTION: The number of incident and prevalent patients on dialysis has increased, as well as the number of candidates for renal transplantation in Brazil, without a proportional increase in the number of organ donors. The use of expanded kidneys, as to renal function, may be an alternative to increase the supply of organs. OBJECTIVE: to discuss the feasibility of using expanded kidneys for renal function, which are in severe acute renal injury. METHODS: All cases of renal transplantation of deceased donors performed at the Hospital das Clínicas de Botucatu of UNESP, from January 2010 to June 2018, totaling 732 cases were evaluated. Cases with final donor creatinine greater than 6 mg/dL were selected. RESULTS: four patients were selected, of whom all donors were in severe acute kidney injury (AKI). These donors presented rhabdomyolysis as a probable cause of severe AKI, were young, with no comorbidities and had decreased urinary volume in the last 24 hours. The clinical evolution of all the recipients was satisfactory, with a glomerular filtration rate after transplantation ranging from 48 to 98 mL/min/1.73 m2. CONCLUSION: this series of cases shows the possibility of using renal donors in severe AKI, provided the following are respected: donor age, rhabdomyolysis as the cause of AKI, and implantation-favorable biopsy findings. Additional studies with better designs, larger numbers of patients and longer follow-up times are needed.


Assuntos
Injúria Renal Aguda/cirurgia , Função Retardada do Enxerto/diagnóstico , Transplante de Rim/métodos , Rabdomiólise/diagnóstico , Doadores de Tecidos/estatística & dados numéricos , Injúria Renal Aguda/etiologia , Adulto , Brasil/epidemiologia , Cadáver , Creatinina/sangue , Função Retardada do Enxerto/etiologia , Estudos de Viabilidade , Feminino , Taxa de Filtração Glomerular/fisiologia , Sobrevivência de Enxerto/fisiologia , Humanos , Rim/fisiopatologia , Transplante de Rim/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Diálise Renal/estatística & dados numéricos , Projetos de Pesquisa , Estudos Retrospectivos , Rabdomiólise/complicações , Índice de Gravidade de Doença , Doadores de Tecidos/provisão & distribuição , Transplantados/estatística & dados numéricos
4.
J Cardiovasc Magn Reson ; 21(1): 21, 2019 03 27.
Artigo em Inglês | MEDLINE | ID: mdl-30917836

RESUMO

BACKGROUND: The measurement of native T1 through cardiovascular magnetic resonance (CMR) is a noninvasive method of assessing myocardial fibrosis without gadolinium contrast. No studies so far have evaluated native T1 after renal transplantation. The primary aim of the current study is to assess changes in the myocardium native T1 6 months after renal transplantation. METHODS: We prospectively evaluated 44 renal transplant patients with 3 T CMR exams: baseline at the beginning of transplantation and at 6 months after transplantation. RESULTS: The native T1 time was measured in the midventricular septum and decreased significantly from 1331 ± 52 ms at the baseline to 1298 ± 42 ms 6 months after transplantation (p = 0.001). The patients were split into two groups through a two-step cluster algorithm: In cluster-1 (n = 30) the left ventricular (LV) mass index and the prevalence of diabetes were lower. In cluster-2 (n = 14) the LV mass index and diabetes prevalence were higher. Decrease in native T1 values was significant only in the patients in cluster-1 (p = 0.001). CONCLUSIONS: The native myocardial T1 time decreased significantly 6 months after renal transplant, which may be associated with the regression of the reactive fibrosis. The patients with greater baseline LV mass index and the diabetic group did not reach a significant decrease in T1.


Assuntos
Cardiomiopatias/diagnóstico por imagem , Transplante de Rim , Imagem Cinética por Ressonância Magnética , Miocárdio/patologia , Insuficiência Renal Crônica/cirurgia , Adulto , Brasil/epidemiologia , Cardiomiopatias/epidemiologia , Cardiomiopatias/patologia , Cardiomiopatias/fisiopatologia , Diabetes Mellitus/epidemiologia , Feminino , Fibrose , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prevalência , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Fatores de Tempo , Resultado do Tratamento , Função Ventricular Esquerda , Remodelação Ventricular
5.
J Bras Nefrol ; 40(2): 162-169, 2018.
Artigo em Inglês, Português | MEDLINE | ID: mdl-29927459

RESUMO

INTRODUCTION: The progress in kidney transplantation has been evident over the years, as well as its benefits for patients. OBJECTIVES: To evaluate the 1.000 kidney transplants performed at the Botucatu Medical School University Hospital, subdividing the patients in different periods, according to the current immunosuppression, and evaluating the differences in graft and patient survival. METHODS: Retrospective cohort analysis of the transplants performed between 06/17/87 to 07/31/16, totaling 1,046 transplants, subdivided into four different periods: 1) 1987 to 2000: cyclosporine with azathioprine; 2) 2001 to 2006: cyclosporine with mycophenolate; 3) 2007 to 2014: tacrolimus with antimetabolic; and 4) 2015 to 2016: tacrolimus with antimetabolic, with increased use of the combination of tacrolimus and mTOR inhibitors. RESULTS: There was an increase in the mean age of recipients and increase in deceased donors and their age in the last two periods. There was a reduction in graft function delay, being 54.3% in the fourth period, compared to 78.8% in the first, p = 0.002. We found a reduction in acute rejection, being 6.1% in the last period compared to 36.3% in the first, p = 0.001. Urological complications and diabetes after transplantation were more frequent in the first two periods. The rates of cytomegalovirus infection were higher in the last two periods. There was an improvement in graft survival, p = 0.003. There was no difference in patient survival, p = 0.77 (Figure 2). CONCLUSION: There was a significant increase in the number of transplants, with evolution in graft survival, despite the worsening in the profiles of recipients and donors.


Assuntos
Transplante de Rim/estatística & dados numéricos , Transplante de Rim/tendências , Adulto , Brasil , Estudos de Coortes , Feminino , Sobrevivência de Enxerto , Hospitais Universitários , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Faculdades de Medicina , Análise de Sobrevida , Fatores de Tempo
6.
J. bras. nefrol ; 40(2): 162-169, Apr.-June 2018. tab, graf
Artigo em Inglês | LILACS | ID: biblio-954537

RESUMO

ABSTRACT Introduction: The progress in kidney transplantation has been evident over the years, as well as its benefits for patients. Objectives: To evaluate the 1.000 kidney transplants performed at the Botucatu Medical School University Hospital, subdividing the patients in different periods, according to the current immunosuppression, and evaluating the differences in graft and patient survival. Methods: Retrospective cohort analysis of the transplants performed between 06/17/87 to 07/31/16, totaling 1,046 transplants, subdivided into four different periods: 1) 1987 to 2000: cyclosporine with azathioprine; 2) 2001 to 2006: cyclosporine with mycophenolate; 3) 2007 to 2014: tacrolimus with antimetabolic; and 4) 2015 to 2016: tacrolimus with antimetabolic, with increased use of the combination of tacrolimus and mTOR inhibitors. Results: There was an increase in the mean age of recipients and increase in deceased donors and their age in the last two periods. There was a reduction in graft function delay, being 54.3% in the fourth period, compared to 78.8% in the first, p = 0.002. We found a reduction in acute rejection, being 6.1% in the last period compared to 36.3% in the first, p = 0.001. Urological complications and diabetes after transplantation were more frequent in the first two periods. The rates of cytomegalovirus infection were higher in the last two periods. There was an improvement in graft survival, p = 0.003. There was no difference in patient survival, p = 0.77 (Figure 2). Conclusion: There was a significant increase in the number of transplants, with evolution in graft survival, despite the worsening in the profiles of recipients and donors.


RESUMO Introdução: O progresso no transplante renal tem sido evidente ao longo dos anos, assim como seus benefícios para os pacientes. Objetivos: Avaliar os 1000 transplantes renais realizados no Hospital das Clínicas da Faculdade de Medicina de Botucatu, subdividindo os pacientes em diferentes períodos, de acordo com a imunossupressão vigente, e avaliar as diferenças em relação à sobrevida do enxerto e do paciente. Métodos: Análise da coorte retrospectiva dos transplantes realizados entre 17/06/87 a 31/07/16, totalizando 1046 transplantes, subdivididos em quatro diferentes períodos: 1) 1987 a 2000: ciclosporina com azatioprina; 2) 2001 a 2006: ciclosporina com micofenolato; 3) 2007 a 2014: tacrolimo com antimetabólico; e 4) 2015 a 2016: tacrolimo com antimetabólico, com aumento do uso da combinação de tacrolimo com inibidores da mTOR. Resultados: Houve aumento da idade média dos receptores e aumento de doadores falecidos e da idade destes nos dois últimos períodos. Observou-se redução de retardo de função do enxerto, sendo de 54,3% no quarto período, em comparação a 78,8% no primeiro, p = 0,002. Observamos redução de rejeição aguda, sendo 6,1% no último período em comparação a 36,3% no primeiro, p = 0,001. As complicações urológicas e o diabetes após o transplante foram mais frequentes nos primeiros dois períodos. As taxas de infecção por citomegalovírus foram maiores nos dois últimos períodos. Houve melhoria na sobrevida do enxerto, p = 0,003. Não houve diferença na sobrevida do paciente, p = 0,77 (Figura 2). Conclusão: Houve aumento significativo no número de transplantes, com evolução na sobrevida do enxerto, apesar da piora no perfil dos receptores e doadores.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Transplante de Rim/tendências , Transplante de Rim/estatística & dados numéricos , Faculdades de Medicina , Fatores de Tempo , Brasil , Análise de Sobrevida , Estudos Retrospectivos , Estudos de Coortes , Sobrevivência de Enxerto , Hospitais Universitários
7.
Ann Transplant ; 23: 207-217, 2018 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-29581414

RESUMO

There is no standardization on the timing of the best approach to treat a non-functioning renal graft. We reviewed the literature and performed a proportional meta-analysis of case series of transplantectomy and embolization for a non-functioning renal graft. The groups were compared for mortality and morbidity outcomes. A total of 2421 patients were included in this review. Of these, 2232 patients underwent transplantectomy and 189 underwent percutaneous embolization. The mortality rate in the nephrectomy group was 4% [95% confidence interval [CI], 2-7%; I²=87%] as compared with 0.1% [95% CI, 0.1-0.5%; I²=0%] in the embolization group. The rates of common morbidities were 18% [95% CI, 13-26%, I²=79.7%] for nephrectomy compared with 1.2% [95% CI, 0.7-2.1%, I²=26.4%] for embolization. The incidence of post-embolization syndrome was 68%, and 20% of patients needed post-embolization nephrectomy. Percutaneous embolization was associated with lower mortality and morbidity rates but also with a high rate of post-embolization syndrome. However, in most cases this complication had easily manageable symptoms. Embolization is a new and attractive technique that can be considered in treating non-functioning renal grafts.


Assuntos
Embolização Terapêutica/métodos , Rejeição de Enxerto/cirurgia , Transplante de Rim/efeitos adversos , Nefrectomia/métodos , Insuficiência Renal/cirurgia , Humanos
8.
Exp Clin Transplant ; 16(3): 301-306, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28836934

RESUMO

OBJECTIVES: There is no consensus on the best immunosuppressive regimen for elderly renal transplant recipients. The objective of this study was to assess cytomegalovirus infection incidence and kidney transplant outcomes in elderly recipients treated with mammalian target of rapamycin inhibitors sirolimus/ tacrolimus at low doses compared with those receiving tacrolimus/mycophenolate sodium. MATERIALS AND METHODS: In this single-center prospective randomized study (Trial Registration No. NCT02683291), kidney transplant recipients over 60 years of age were randomly allocated into 2 groups: tacrolimus-sirolimus (21 patients) and tacrolimus-mycophenolate (23 patients). Cytomegalovirus infection rate and patient survival, biopsy-proven acute rejection, and renal function at 12 months were assessed. RESULTS: Cytomegalovirus infection rate was higher in the mycophenolate group (60.9%) than in the sirolimus group (16.7%; P = .004). The rates of biopsy-proven acute rejection, patient survival, graft survival, and estimated glomerular filtration rate over 12 months did not significantly differ between groups. CONCLUSIONS: The incidence of cytomegalovirus infection was significantly lower in the sirolimus group. The use of tacrolimus combined with sirolimus in elderly kidney transplant recipients is safe.


Assuntos
Inibidores de Calcineurina/administração & dosagem , Imunossupressores/administração & dosagem , Transplante de Rim , Sirolimo/administração & dosagem , Tacrolimo/administração & dosagem , Fatores Etários , Idoso , Biópsia , Brasil/epidemiologia , Inibidores de Calcineurina/efeitos adversos , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/imunologia , Quimioterapia Combinada , Feminino , Taxa de Filtração Glomerular , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/imunologia , Sobrevivência de Enxerto , Humanos , Imunossupressores/efeitos adversos , Incidência , Transplante de Rim/efeitos adversos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Sirolimo/efeitos adversos , Tacrolimo/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
9.
PLoS One ; 12(11): e0188155, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29136640

RESUMO

INTRODUCTION: The treatment of choice for Atypical Hemolytic Uremic Syndrome (aHUS) is the monoclonal antibody eculizumab. The objective of this study was to assess the efficacy and safety of eculizumab in a cohort of kidney transplant patients suffering from aHUS. METHODS: Description of the prospective cohort of all the patients primarily treated with eculizumab after transplantation and divided into the therapeutic (onset of aHUS after transplantation) and prophylactic use (patients with previous diagnosis of aHUS undergoing kidney transplantation). RESULTS: Seven cases were outlined: five of therapeutic use and two, prophylactic. From the five cases of therapeutic use, there was improvement of the thrombotic microangiopathy in the 48 hours following the start of the drug and no patient experienced relapse during an average follow-up of 21 months in the continuous use of eculizumab (minimum of 6 and maximum of 42 months). One patient died at 6 months, due to Aspergillus infection. From the two cases of prophylactic use, one patient experienced relapsed thrombotic microangiopathy after 4 months and another patient remained asymptomatic after 16 months of follow-up, both on chronic treatment. DISCUSSION: The therapeutic use of eculizumab showed to be effective, with improvement of the microangiopathy parameters and persisting up to the end of the follow-up, without relapses. The additional risk of immunosuppression, leading to opportunistic infections, was well tolerated. The prophylactic use showed to be effective and safe; however, the doses and intervals should be individualized in order to avoid relapsed microangiopathy, especially in patients with factor H mutation.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Síndrome Hemolítico-Urêmica Atípica/tratamento farmacológico , Síndrome Hemolítico-Urêmica Atípica/fisiopatologia , Brasil , Humanos , Estudos Prospectivos , Resultado do Tratamento
10.
Int J Surg Case Rep ; 36: 82-85, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28550788

RESUMO

INTRODUCTION: Venous thrombosis is a serious surgical complication that frequently results in loss of kidney graft. CASE PRESENTATION: We report the case of a female patient recipient of a decease kidney transplant that in the tenth postoperative presented with hematuria, graft pain and oliguria. Ultrasound examination was suggestive of venous thrombosis with abnormal doppler waveform pattern and reversal of diastolic flow. She underwent emergency surgical intervention after 2h of diagnosis. The vein thrombus was removed by perfusing the renal graft artery with 1000ml of Euro-Collins solution. The patient evolves with recovery of renal function after 1 week of the procedure DISCUSSION: Similar reports of graft rescue in the vein thrombosis are scarce and that the time of diagnosis to intervention is a determining factor. CONCLUSION: Rapid diagnosis of exactly 2h combined with the early re-operation may be successful in preserving renal graft in cases of venous thrombosis.

11.
Int Urol Nephrol ; 47(11): 1899-905, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26377496

RESUMO

PURPOSE: Solid-organ transplant recipients present a high rate of non-adherence to drug treatment. Few interventional studies have included approaches aimed at increasing adherence. The objective of this study was to evaluate the impact of an educational and behavioral strategy on treatment adherence of kidney transplant recipients. METHODS: In a randomized prospective study, incident renal transplant patients (n = 111) were divided into two groups: control group (received usual transplant patient education) and treatment group (usual transplant patient education plus ten additional weekly 30-min education/counseling sessions about immunosuppressive drugs and behavioral changes). Treatment adherence was assessed using ITAS adherence questionnaire after 3 months. Renal function at 3, 6, and 12 months, and the incidence of transplant rejection were evaluated. RESULTS: The non-adherence rates were 46.4 and 14.5 % in the control and treatment groups (p = 0.001), respectively. The relative risk for non-adherence was 2.59 times (CI 1.38-4.88) higher in the control group. Multivariate analysis demonstrated a 5.84 times (CI 1.8-18.8, p = 0.003) higher risk of non-adherence in the control group. There were no differences in renal function and rejection rates between groups. CONCLUSIONS: A behavioral and educational strategy addressing the patient's perceptions and knowledge about the anti-rejection drugs significantly improved the short-term adherence to immunosuppressive therapy.


Assuntos
Aconselhamento , Imunossupressores/uso terapêutico , Transplante de Rim , Adesão à Medicação/psicologia , Educação de Pacientes como Assunto , Tacrolimo/uso terapêutico , Adulto , Feminino , Rejeição de Enxerto/prevenção & controle , Humanos , Imunossupressores/sangue , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Inquéritos e Questionários , Tacrolimo/sangue
12.
J Bras Nefrol ; 37(2): 206-11, 2015.
Artigo em Inglês, Português | MEDLINE | ID: mdl-26154641

RESUMO

INTRODUCTION: Indications for induction therapy is not consensual in living donors. OBJECTIVE: The objective of this study was compare no induction with thymoglobulin and basiliximab induction in the incidence of acute rejection in kidney transplantation with living donor. METHODS: We select all cases of renal transplantation with living donor performed in Hospital das Clínicas de Botucatu da UNESP during the period of January 2010 to December 2013. The group was divided by the type of medication used for induction. RESULTS: A total of 90 patients were evaluated. There were no differences in baseline characteristics of age and underlying disease. The rate of biopsy-proven acute rejection was higher in the group without induction (42.9%) compared to basiliximab group (20%) and Thymoglobulin (16.7%), p = 0.04. The rejection by compatibility shows that the identical had the lower rejection rate (10%). The haploidentical group without induction had the highest rejection rates (53.3%). In all distinct group the rejection rates were similar with basiliximab or Thymoglobulin, p = NS. The use of induction therapy was associated independently with a lower risk of rejection (OR = 0.32 CI: 0.11 to 0.93, p = 0.036). There were no differences in renal function at 6 months and patient survival and graft in the three groups. DISCUSSION: The haploidentical patients without induction were those with higher rates of acute rejection. The group of patients induced with Thymoglobulin had a higher immunological risk, however showed low rates of rejection. CONCLUSION: The use of induction therapy resulted in lower rates of rejection in transplantation with living donor.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Soro Antilinfocitário/uso terapêutico , Imunossupressores/uso terapêutico , Transplante de Rim , Proteínas Recombinantes de Fusão/uso terapêutico , Adulto , Basiliximab , Feminino , Humanos , Doadores Vivos , Masculino , Estudos Retrospectivos
13.
J. bras. nefrol ; 37(2): 206-211, Apr-Jun/2015. tab, graf
Artigo em Português | LILACS | ID: lil-751443

RESUMO

Resumo Introdução: A indicação de terapia de indução não é consensual em doadores vivos. Objetivo: Comparar não indução com indução com basiliximab e timoglobulina na incidência de rejeição aguda em transplante renal com doador vivo. Métodos: Todos os casos de transplante renal com doador vivo realizados no serviço de transplante do Hospital das Clínicas de Botucatu da UNESP no período de janeiro de 2010 a dezembro de 2013. O grupo foi dividido pelo tipo de medicação usada na indução. Resultados: Foram avaliados 90 pacientes. Não houve diferenças nas características basais de idade e doença de base. A taxa de rejeição aguda comprovada por biópsia foi maior no grupo sem indução (42,9%) em comparação aos grupos basiliximab (20%) e timoglobulina (16,7%), p = 0,04. A divisão das rejeições por compatibilidade mostra que os idênticos apresentaram menor taxa de rejeição (10%). O grupo haploidêntico sem indução apresentou as maiores taxas de rejeição (53,3%). No grupo distinto, todos foram induzidos e as taxas de rejeição foram semelhantes com basiliximab ou timoglobulina, p = NS. O uso de terapia de indução associou-se de forma independente a menor risco de rejeição (OR = 0,32 IC: 0,11-0,93, p = 0,036). Não houve diferenças na função renal aos 6 meses e sobrevida do paciente e enxerto nos três grupos. Discussão: Os pacientes haploidênticos sem indução foram os que apresentaram maiores taxas de rejeição aguda. O grupo de pacientes induzidos com timoglobulina apresentava maior risco imunológico, entretanto, eles mostraram baixas taxas de rejeição. Conclusão: O uso de terapia de indução resultou em menores taxas de rejeição em transplante com doador vivo. .


Abstract Introduction: Indications for induction therapy is not consensual in living donors. Objective: The objective of this study was compare no induction with thymoglobulin and basiliximab induction in the incidence of acute rejection in kidney transplantation with living donor. Methods: We select all cases of renal transplantation with living donor performed in Hospital das Clínicas de Botucatu da UNESP during the period of January 2010 to December 2013. The group was divided by the type of medication used for induction. Results: A total of 90 patients were evaluated. There were no differences in baseline characteristics of age and underlying disease. The rate of biopsy-proven acute rejection was higher in the group without induction (42.9%) compared to basiliximab group (20%) and Thymoglobulin (16.7%), p = 0.04. The rejection by compatibility shows that the identical had the lower rejection rate (10%). The haploidentical group without induction had the highest rejection rates (53.3%). In all distinct group the rejection rates were similar with basiliximab or Thymoglobulin, p = NS. The use of induction therapy was associated independently with a lower risk of rejection (OR = 0.32 CI: 0.11 to 0.93, p = 0.036). There were no differences in renal function at 6 months and patient survival and graft in the three groups. Discussion: The haploidentical patients without induction were those with higher rates of acute rejection. The group of patients induced with Thymoglobulin had a higher immunological risk, however showed low rates of rejection. Conclusion: The use of induction therapy resulted in lower rates of rejection in transplantation with living donor. .


Assuntos
Humanos , Masculino , Feminino , Adulto , Anticorpos Monoclonais/uso terapêutico , Soro Antilinfocitário/uso terapêutico , Imunossupressores/uso terapêutico , Transplante de Rim , Proteínas Recombinantes de Fusão/uso terapêutico , Doadores Vivos , Estudos Retrospectivos
14.
Ren Fail ; 37(4): 597-600, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25656834

RESUMO

BACKGROUND/AIMS: Cardiovascular diseases are major causes of mortality in chronic renal failure patients before and after renal transplantation. Among them, coronary disease presents a particular risk; however, risk predictors have been used to diagnose coronary heart disease. This study evaluated the frequency and importance of clinical predictors of coronary artery disease in chronic renal failure patients undergoing dialysis who were renal transplant candidates, and assessed a previously developed scoring system. METHODS: Coronary angiographies conducted between March 2008 and April 2013 from 99 candidates for renal transplantation from two transplant centers in São Paulo state were analyzed for associations between significant coronary artery diseases (≥70% stenosis in one or more epicardial coronary arteries or ≥50% in the left main coronary artery) and clinical parameters. RESULTS: Univariate logistic regression analysis identified diabetes, angina, and/or previous infarction, clinical peripheral arterial disease and dyslipidemia as predictors of coronary artery disease. Multiple logistic regression analysis identified only diabetes and angina and/or previous infarction as independent predictors. CONCLUSION: The results corroborate previous studies demonstrating the importance of these factors when selecting patients for coronary angiography in clinical pretransplant evaluation.


Assuntos
Algoritmos , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/etiologia , Falência Renal Crônica/complicações , Feminino , Humanos , Falência Renal Crônica/terapia , Transplante de Rim , Masculino , Pessoa de Meia-Idade , Prognóstico , Diálise Renal , Estudos Retrospectivos
15.
Int Urol Nephrol ; 47(2): 405-12, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25503640

RESUMO

PURPOSE: No safe ultrasound (US) parameters have been established to differentiate the causes of graft dysfunction. OBJECTIVES: To define US parameters and identify the predictors of normal graft evolution, delayed graft function (DGF), and rejection at the early period after kidney transplantation. METHODS: Between June 2012 and August 2013, 79 renal transplant recipients underwent US examination 1-3 days posttransplantation. Resistive index (RI), power Doppler (PD), and RI + PD (quantified PD) were assessed. Patients were allocated into three groups: normal graft evolution, DGF, and rejection. RESULTS: Resistive index of upper and middle segments and PD were higher in the DGF group than in the normal group. ROC curve analysis revealed that RI + PD was the index that best correlated with DGF (cutoff = 0.84). In the high RI + PD group, time to renal function recovery (6.33 ± 6.5 days) and number of dialysis sessions (2.81 ± 2.8) were greater than in the low RI + PD group (2.11 ± 5.3 days and 0.69 ± 1.5 sessions, respectively), p = 0.0001. Multivariate analysis showed that high donor final creatinine with a relative risk (RR) of 19.7 (2.01-184.7, p = 0.009) and older donor age (RR = 1.17 (1.04-1.32), p = 0.007) correlated with risk DGF. CONCLUSIONS: Quantified PD (RI + PD) was the best DGF predictor. PD quantification has not been previously reported.


Assuntos
Função Retardada do Enxerto/diagnóstico por imagem , Transplante de Rim/efeitos adversos , Ultrassonografia Doppler em Cores , Resistência Vascular , Adulto , Fatores Etários , Velocidade do Fluxo Sanguíneo , Creatinina/sangue , Função Retardada do Enxerto/etiologia , Função Retardada do Enxerto/fisiopatologia , Feminino , Rejeição de Enxerto/diagnóstico por imagem , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Valor Preditivo dos Testes , Estudos Prospectivos , Artéria Renal , Fatores de Risco , Doadores de Tecidos , Ultrassonografia Doppler em Cores/métodos , Adulto Jovem
16.
J Bras Nefrol ; 36(2): 194-200, 2014.
Artigo em Inglês, Português | MEDLINE | ID: mdl-25055360

RESUMO

INTRODUCTION: A progressive improvement in kidney transplant outcomes has been achieved over the last decades. OBJECTIVE: To determine the degree to which this has occurred in our center, we conducted an outcome analysis of our kidney transplant program during three different time periods, especially focusing on patient and graft survival. METHODS: The 600 kidney transplants performed at Botucatu Medical School/UNESP up to December 2011 were examined. Three different time periods were chosen to correspond with major shifts in immunosuppressant usage: Era 1 (1987-2000), cyclosporine and azathioprine usage (n = 180); Era 2 (2001-2006), cyclosporine and mycophenolate mofetil usage (n = 120); and Era 3 (2007-2011), tacrolimus and mycophenolate (n = 300). RESULTS: Compared with the first era, mean recipient age, diabetes prevalence, and the number of living donor transplantations (60%) were increased in the third era. Induction therapy was used in 75% of the cases in Era 3, 46.6% in Era 2, and in 3.9% in Era 1 (p < 0.0001). The mean number of transplants/year rose from 14 in Era 1 to 75 in Era 3. Overall survival according to donor type was similar to that reported in the literature. Five-year graft survival following deceased donor transplantation progressively increased from 13.1% (Era 1) to 81.9% (Era 3). CONCLUSION: Significant differences were observed over time. The percentage of living donors decreased as that of deceased donors increased. Survival after deceased donor transplants was greatest in Era 3, probably due to the improved experience of the medical team, and to the use of tacrolimus and mycophenolate mofetil combination with induction.


Assuntos
Transplante de Rim/estatística & dados numéricos , Adulto , Brasil , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Faculdades de Medicina , Fatores de Tempo
17.
J. bras. nefrol ; 36(2): 194-200, Apr-Jun/2014. tab, graf
Artigo em Português | LILACS | ID: lil-714675

RESUMO

Introdução: Os resultados alcançados pelos transplantes renais nas últimas décadas têm melhorado progressivamente. Objetivo: A fim de determinar a extensão desse progresso, conduzimos uma análise dos resultados obtidos em nosso programa de transplantes através de três períodos diferentes. Métodos: Avaliamos os 600 transplantes renais realizados no HC FMB-UNESP até dezembro de 2011, subdividindo-os em três eras, de acordo com a imunossupressão vigente. Era 1: de 1987 a 2000 (n = 180); associação de ciclosporina e azatioprina. Era 2: de 2001 a 2006 (n = 120); associação de ciclosporina e micofenolato e Era 3: de 2007 a 2011 (n = 300); associação de tacrolimus e micofenolato. Resultados: Os resultados mostram aumento da idade média do receptor, da prevalência de diabetes e do número de transplantes com doador falecido (60%) na terceira era. O uso de terapia de indução foi de 75% era atual contra 46,6% (Era 2) e 3,9% (Era 1), p < 0,0001. Os dados de sobrevida geral por tipo de doador mostram dados semelhantes à literatura. Houve progressivo aumento da sobrevida do enxerto com doadores falecidos em 5 anos, saindo de 13,7% (Era 1) para 81,9% (Era 3). Conclusão: Houve significativas diferenças ao longo do tempo, culminando com aumento do volume de transplantes na atual era (média de 14 transplantes/ano na Era 1 para 75 transplantes/ano na Era 3). Inverteu-se o perfil de transplantes na era atual com predomínio de doador falecido. A melhor sobrevida com doador falecido da atual era foi atribuída a maior experiência do centro e aos esquemas de imunossupressão baseados na combinação de tacrolimus com micofenolato associados a esquema de indução. .


Introduction: A progressive improvement in kidney transplant outcomes has been achieved over the last decades. Objective: To determine the degree to which this has occurred in our center, we conducted an outcome analysis of our kidney transplant program during three different time periods, especially focusing on patient and graft survival. Methods: The 600 kidney transplants performed at Botucatu Medical School/UNESP up to December 2011 were examined. Three different time periods were chosen to correspond with major shifts in immunosuppressant usage: Era 1 (1987-2000), cyclosporine and azathioprine usage (n = 180); Era 2 (2001-2006), cyclosporine and mycophenolate mofetil usage (n = 120); and Era 3 (2007-2011), tacrolimus and mycophenolate (n = 300). Results: Compared with the first era, mean recipient age, diabetes prevalence, and the number of living donor transplantations (60%) were increased in the third era. Induction therapy was used in 75% of the cases in Era 3, 46.6% in Era 2, and in 3.9% in Era 1 (p < 0.0001). The mean number of transplants/year rose from 14 in Era 1 to 75 in Era 3. Overall survival according to donor type was similar to that reported in the literature. Five-year graft survival following deceased donor transplantation progressively increased from 13.1% (Era 1) to 81.9% (Era 3). Conclusion: Significant differences were observed over time. The percentage of living donors decreased as that of deceased donors increased. Survival after deceased donor transplants was greatest in Era 3, probably due to the improved experience of the medical team, and to the use of tacrolimus and mycophenolate mofetil combination with induction. .


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transplante de Rim/estatística & dados numéricos , Brasil , Sobrevivência de Enxerto , Estudos Retrospectivos , Faculdades de Medicina , Fatores de Tempo
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