RESUMO
INTRODUCTION: While the growing knowledge on HIV among solid organ transplant recipients (SOT) is limited to either pretransplant infection or allograft transmission, there are only sparse reports describing HIV-infection after transplantation through sexual route, the primary mode of transmission in the general population. METHODS: From two different centers, we report nine new cases of HIV infection in SOT recipients attributed to sexual acquisition: eight cases of kidney-transplant recipients and one heart-transplant recipient. FINDINGS: There were nine cases of post-transplant HIV-infection detected among 14 526 transplants performed 1998 to 2015. In 6/9 cases, infection was contracted 5 years after SOT. All but one patient had stable allograft function under immunosuppressive therapy. The main trigger to diagnosis was late CMV disease and sexually transmitted diseases; five patients had CDC-stage 3 HIV infection. In 7/9 patients, virologic response and CD4 recovery were achieved within 3 months after starting antiretroviral therapy (ART). After an average of 3.6 years post diagnosis, 5/9 patients remained alive with well-controlled infection and functioning allograft. CONCLUSION: Sexual acquisition of HIV infection after SOT represents a difficult challenge, as it may occur in any kind of transplant and at any time. The course of infection resembles that of the general population, with life-threatening infectious complications, but good response to ART. Assessment of lifestyle and risk behavior is paramount, as indications may be not disclosed without direct questioning.
Assuntos
Antivirais/uso terapêutico , Infecções por HIV/epidemiologia , Transplante de Coração/efeitos adversos , Transplante de Rim/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Adulto , Feminino , Seguimentos , Rejeição de Enxerto/prevenção & controle , HIV/efeitos dos fármacos , HIV/isolamento & purificação , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Comportamentos de Risco à Saúde , Humanos , Imunossupressores/uso terapêutico , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/virologia , Resposta Viral SustentadaRESUMO
OBJECTIVES: This is a retrospective and observational study addressing clinical and therapeutic aspects of melanized fungal infections in kidney transplant recipients. METHODS: We retrospectively reviewed medical records of all patients admitted between January 1996 and December 2013 in a single institution who developed infections by melanized fungi. RESULTS: We reported on 56 patients aged between 30 and 74 years with phaeohyphomycosis or chromoblastomycosis (0.54 cases per 100 kidney transplants). The median time to diagnosis post-transplant was 31.2 months. Thirty-four (60.8%) infections were reported in deceased donor recipients. Fifty-one cases of phaeohyphomycosis were restricted to subcutaneous tissues, followed by two cases with pneumonia and one with brain involvement. Most dermatological lesions were represented by cysts (23/51; 45.1%) or nodules (9/51; 17.9%). Exophiala spp. (34.2%) followed by Alternaria spp. (7.9%) were the most frequent pathogens. Graft loss and death occurred in two patients and one patient, respectively. Regarding episodes of subcutaneous phaeohyphomycosis, a complete surgical excision without antifungal therapy was possible in 21 of 51 (41.2%) patients. Long periods of itraconazole were required to treat the other 30 (58.8%) episodes of subcutaneous disease. All four cases of chromoblastomycosis were treated only with antifungal therapy. CONCLUSIONS: Melanized fungal infections should be considered in the differential diagnosis of all chronic skin lesions in transplant recipients. It is suggested that the impact of these infections on graft function and mortality is low. The reduction in immunosuppression should be limited to severely ill patients.
Assuntos
Cromoblastomicose/diagnóstico , Cromoblastomicose/tratamento farmacológico , Transplante de Rim , Feoifomicose/diagnóstico , Feoifomicose/tratamento farmacológico , Adulto , Idoso , Alternaria/efeitos dos fármacos , Alternaria/isolamento & purificação , Antifúngicos/uso terapêutico , Exophiala/efeitos dos fármacos , Exophiala/isolamento & purificação , Feminino , Seguimentos , Humanos , Itraconazol/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , TransplantadosRESUMO
BACKGROUND: Highly active antiretroviral therapy has turned human immunodeficiency virus (HIV)-infected patients with end-stage renal disease into suitable candidates for renal transplantation. We present the Brazilian experience with kidney transplantation in HIV-infected recipients observed in a multicenter study. METHODS: HIV-infected kidney transplant recipients and matched controls were evaluated for the incidence of delayed graft function (DGF), acute rejection (AR), infections, graft function, and survival of patients and renal grafts. RESULTS: Fifty-three HIV-infected recipients and 106 controls were enrolled. Baseline characteristics were similar, but a higher frequency of pre-transplant positivity for hepatitis C virus and cytomegalovirus infections was found in the HIV group. Immunosuppressive regimens did not differ, but a trend was observed toward lower use of anti-thymocyte globulin in the group of HIV-infected recipients (P = 0.079). The HIV-positive recipient group presented a higher incidence of treated AR (P = 0.036) and DGF (P = 0.044). Chronic Kidney Disease Epidemiology Collaboration estimated that glomerular filtration rate was similar at 6 months (P = 0.374) and at 12 months (P = 0.957). The median number of infections per patient was higher in the HIV-infected group (P = 0.018). The 1-year patient survival (P < 0.001) and graft survival (P = 0.004) were lower, but acceptable, in the group of HIV-infected patients. CONCLUSIONS: In the Brazilian experience, despite somewhat inferior outcomes, kidney transplantation is an adequate therapy for selected HIV-infected recipients.
Assuntos
Rejeição de Enxerto/epidemiologia , Infecções por HIV/complicações , Terapia de Imunossupressão/métodos , Falência Renal Crônica/cirurgia , Transplante de Rim/mortalidade , Adulto , Soro Antilinfocitário/administração & dosagem , Terapia Antirretroviral de Alta Atividade , Brasil/epidemiologia , Estudos de Casos e Controles , Coinfecção/epidemiologia , Citomegalovirus/isolamento & purificação , Infecções por Citomegalovirus/epidemiologia , Feminino , Taxa de Filtração Glomerular , Sobrevivência de Enxerto , Infecções por HIV/tratamento farmacológico , Infecções por HIV/mortalidade , Hepacivirus/isolamento & purificação , Hepatite C/epidemiologia , Humanos , Imunossupressores/administração & dosagem , Imunossupressores/uso terapêutico , Incidência , Falência Renal Crônica/etiologia , Falência Renal Crônica/mortalidade , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Transplantados , Resultado do TratamentoRESUMO
BACKGROUND: Kidney transplantation (KT) in obese patients is controversial. The present study aimed to evaluate patient and graft survival and post-transplantation complications between obese and nonobese recipients. METHODS: Patients (n = 3,054) receiving a KT from 1998 to 2008 were divided according to body mass index (BMI) into 3 groups for analysis: group I: BMI <30 kg/m(2) (nonobese); group II: ≥30-34.9 kg/m(2) (class I obese); and group III: ≥35 kg/m(2) (class II and III obese). RESULTS: Mean BMIs were: group I (n = 2,822): 22.6 ± 3.3 kg/m(2); group II (n = 185): 31.9 ± 1.3 kg/m(2); and group III (n = 47): 36.8 ± 1.7 kg/m(2). There were no differences among the 3 groups in patient demographic variables regarding race, sex, or organ source. One-year (I, 98%; II, 98%; III, 95%) and 5-year (I, 90%; II, 92%; III, 89%) patient survival rates were similar among groups. Graft survival rates at 1 year were 96% for groups I and II and 91.5% for group III. Five-year graft survivals were: I, 81%; II, 96%; and III, 79%. The most common cause of graft loss was death, and the main cause of death was infection in all groups. Obese patients were more likely to experience wound dehiscence (I, 1.9%; II, 7.6%; III, 19.1%; P < .001), develop new-onset diabetes after transplantation (NODAT; I, 16.2%; II, 27%; III, 36%; P < .001), and have a prolonged length of hospital stay (I, 11.3 ± 11.4 d; II, 14.5 ± 14.3 d; III, 15.9 ± 16.7 d; P < .001). CONCLUSIONS: Obese recipients demonstrated outcomes similar to nonobese patients regarding patient and graft survival. However, they had higher rates of prolonged length of hospital stay, wound dehiscence, and NODAT.
Assuntos
Falência Renal Crônica/complicações , Transplante de Rim , Obesidade/complicações , Transplantados , Adulto , Índice de Massa Corporal , Brasil/epidemiologia , Feminino , Sobrevivência de Enxerto , Humanos , Falência Renal Crônica/mortalidade , Falência Renal Crônica/cirurgia , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Obesidade/mortalidade , Taxa de Sobrevida/tendências , Resultado do TratamentoRESUMO
After undergoing kidney transplantation, some patients still face one symptom that continues after the dialysis sessions: fatigue (physical and mental tiredness that does not get better after resting). Fatigue effects in the everyday lives of kidney transplant patients can be beneficially modified early by changing this scenario. This is a quantitative study about the intensity and impacts of fatigue in kidney transplant patients admitted to the Hypertension and Kidney Hospital from October 2011 to March 2012. The fatigue pictogram was used to evaluate the level of fatigue interference in the daily life activities of kidney transplant patients. The sample consists of 39 patients, and was developed in 2 phases: data collection and attendance after and before the transplantation until hospital discharge. Descriptive statistical analyses were used. In the group at issue, we have noticed the following profile of the sample: 84.3% of transplantations with live donors, most were men, average age 36.5 years old, average hospitalization time 11.1 days, average time of renal failure 66.4 months, systemic arterial hypertension prevalence 66.7%, and the prevalence of at least 1.8 diseases in each individual. The self-referred causes of chronic renal failure were uncontrolled systemic arterial hypertension, glomerulonephritis, and overuse of anti-inflammatory drugs, among others. The study shows that fatigue is directly related to the level of activities of daily living, causing less ability to perform activities in the higher level of fatigue, which is in the immediate postoperative period and only settling fully on the 9th postoperative day.
Assuntos
Atividades Cotidianas , Fadiga/etiologia , Transplante de Rim , Transplantados , Adulto , Feminino , Humanos , MasculinoRESUMO
INTRODUCTION: Simultaneous pancreas-kidney transplantation is associated with a high rate of complications when it is compared with transplantation of other organs; these increased complications can result in increased financial costs of the procedure. The objective of this study was to determine operating costs and financial results of simultaneous pancreas-kidney transplantation and its different variables in a Brazilian hospital. PATIENTS AND METHODS: Between January 2008 and December 2011, the monthly costs of 105 patients were calculated. These patients were divided into 2 groups; the first consecutive 53 patients were labeled group I and the second set of 52 patients were labeled group II. The cost evaluation was made in US dollars. RESULTS: A total of 89 patients corresponded to the public health system and 16 patients to the supplementary health system. The percentage of hospital discharge was 92.4%. There was an increase in operating room costs in group II compared with group I with no statistically significant difference ($18,749.33 for group I and $17,608.26 for group II). The outcome of the operation was positive; it was greater for group II than for group I ($16,303.22 vs $3494.53). CONCLUSIONS: Simultaneous pancreas-kidney transplantation is a financially feasible procedure in Brazil, with the public health system being the main payment source.
Assuntos
Custos Hospitalares/estatística & dados numéricos , Hospitais/estatística & dados numéricos , Transplante de Rim/economia , Transplante de Pâncreas/economia , Adulto , Brasil , Custos e Análise de Custo , Feminino , Humanos , MasculinoRESUMO
Planned conversion from tacrolimus to sirolimus was evaluated in de novo kidney transplant recipients. In this multicenter, randomized, open-label study, 297 patients were initially treated with tacrolimus, mycophenolate sodium and prednisone. Of the 283 patients reaching 3 months, 97 were converted to sirolimus (SRL), 107 were maintained on tacrolimus (TAC) and 79 were patients receiving TAC without criteria to undergo intervention at month 3 (TACex). The primary objective was to show superior estimated glomerular filtration rate (eGFR) in the SRL group at month 24. Of the 258 patients who completed 24 months, 91 (94%) were in the SRL group, 101 (94%) in the TAC group and 66 (84%) in the TACex group. In the intention-to-treat population there were no differences in eGFR (66.2 ± 25.3 vs. 70.7 ± 25.1, p = 0.817) or in the severity of chronic sclerosing lesions scores in 24-month protocol biopsies. Higher mean urinary protein-to-creatinine ratio (0.36 ± 0.69 vs. 0.15 ± 0.53, p = 0.03) and higher incidence of treated acute rejection between months 3-24 (13.4% vs. 4.7%, p = 0.047) were observed in SRL compared to TAC group. In this population planned conversion from TAC to SRL 3 months after kidney transplantation was not associated with improved renal function at 24 months.
Assuntos
Rejeição de Enxerto/prevenção & controle , Transplante de Rim , Insuficiência Renal/terapia , Sirolimo/administração & dosagem , Tacrolimo/administração & dosagem , Adulto , Biópsia , Creatinina/sangue , Feminino , Taxa de Filtração Glomerular , Humanos , Imunossupressores/administração & dosagem , Imunossupressores/efeitos adversos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/administração & dosagem , Ácido Micofenólico/análogos & derivados , Prednisona/administração & dosagem , Estudos Prospectivos , Sirolimo/efeitos adversos , Tacrolimo/efeitos adversos , Resultado do TratamentoRESUMO
Patients in the BENEFIT-EXT study received extended criteria donor kidneys and a more intensive (MI) or less intensive (LI) belatacept immunosuppression regimen, or cyclosporine A (CsA). Patients who remained on assigned therapy through year 3 were eligible to enter a long-term extension (LTE) study. Three hundred four patients entered the LTE (n = 104 MI; n = 113 LI; n = 87 CsA), and 260 continued treatment through year 5 (n = 91 MI; n = 100 LI; n = 69 CsA). Twenty patients died during the LTE (n = 5 MI; n = 9 LI; n = 6 CsA), and eight experienced graft loss (n = 2 MI; n = 1 LI; n = 5 CsA). Three patients experienced an acute rejection episode (n = 2 MI; n = 1 LI). The incidence rate of serious adverse events, viral infections and fungal infections was similar across groups during the LTE. There were four cases of posttransplant lymphoproliferative disorder (PTLD) from the beginning of the LTE to year 5 (n = 3 LI; n = 1 CsA); two of three PTLD cases in the LI group were in patients who were seronegative for Epstein-Barr virus (EBV(-)) at transplantation. Mean ± SD calculated GFR at year 5 was 55.9 ± 17.5 (MI), 59.0 ± 29.1 (LI) and 44.6 ± 16.4 (CsA) mL/min/1.73 m(2) . Continued treatment with belatacept was associated with a consistent safety profile and sustained improvement in renal function versus CsA over time.
Assuntos
Ciclosporina/uso terapêutico , Rejeição de Enxerto/prevenção & controle , Imunoconjugados/uso terapêutico , Imunossupressores/uso terapêutico , Falência Renal Crônica/cirurgia , Transplante de Rim , Doadores de Tecidos , Abatacepte , Estudos de Coortes , Feminino , Seguimentos , Taxa de Filtração Glomerular , Humanos , Agências Internacionais , Testes de Função Renal , Lipídeos/sangue , Transtornos Linfoproliferativos/prevenção & controle , Masculino , Dose Máxima Tolerável , Pessoa de Meia-Idade , Complicações Pós-Operatórias/prevenção & controle , Prognóstico , Segurança , Fatores de TempoRESUMO
BACKGROUND: Debate is increasing on whether mycophenolic acid (MPA) provides survival benefits comparable to azathioprine (AZA) after renal transplantation. METHODS: This retrospective cohort study compared safety and efficacy of AZA (n = 662) vs. MPA (n = 267) in low-immunologic-risk kidney transplant recipients (KTR) receiving tacrolimus (TAC) and steroids between 1998 and 2007. Primary outcomes were treatment discontinuation and infection. Secondary endpoints included survival free from biopsy-proven acute rejection, graft loss, death, and renal function. RESULTS: The 5-year survival free of treatment discontinuation was higher in the MPA compared to the AZA group (74.1% vs. 60.3%, P < 0.001). MPA was discontinued exclusively because of adverse events (16.4%), while AZA was discontinued primarily for lack of efficacy (21.2%). In univariable analysis, MPA was associated with higher incidence of total (561.5 vs. 667.5 episodes/1000 person-year, P < 0.001), bacterial (167 vs. 158 episodes/1000 person-years, P = 0.001), and viral infections (83.2 vs. 100.4 episodes/1000 person-years, P = 0.001), but this association was not confirmed in multivariable analysis. Over 29% of viral infections in the AZA group occurred after conversion to MPA. A high incidence of tuberculosis was observed (2.9 episodes/1000 person-years) with a higher incidence (but not a statistically significant difference) in the AZA group. No significant differences were found in patient survival (90% vs. 89%, P = 0.78) or graft survival (81% vs. 77.7%, P = 0.08), but infection accounted for >50% of all deaths. CONCLUSION: The type of antimetabolite, AZA or MPA, was not independently associated with any safety or efficacy outcome 5 years after transplantation, suggesting that AZA is still a viable option for low-risk KTR receiving TAC and steroids.
Assuntos
Corticosteroides/uso terapêutico , Azatioprina/efeitos adversos , Imunossupressores/uso terapêutico , Transplante de Rim/mortalidade , Ácido Micofenólico/efeitos adversos , Tacrolimo/uso terapêutico , Adolescente , Adulto , Idoso , Azatioprina/administração & dosagem , Feminino , Rejeição de Enxerto/epidemiologia , Humanos , Terapia de Imunossupressão , Incidência , Infecções/epidemiologia , Infecções/etiologia , Transplante de Rim/efeitos adversos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/administração & dosagem , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND: Cardiovascular disease (CVD) mortality is extremely high among kidney transplant recipients (KTRs), particularly in the first months after transplantation. Few data are available comparing the cardiovascular profile between KTRs from living versus deceased donors. OBJECTIVES AND METHODS: The aim of the present study was to evaluate the prevalence of CVD in the first 2 months following transplantation, among 120 KTRs of living versus deceased donor organs. RESULTS: Left ventricular hypertrophy was observed in 65% of patients, coronary artery calcification in 30%, and cardiac arrhythmias in 46%. CVD was more prevalent among KTRs from deceased versus living donors: ventricular hypertrophy 87% versus 59% (P = .008); coronary artery calcification 42% versus 24% (P = .04); and cardiac arrhythmias 59% versus 39% (P = .06). Multiple logistic regression analysis adjusted for age and dialysis vintage, showed graft donor to not be associated with the prevalence of any CVD (ß coefficient 0.912, 95% confidence interval 0.276-3.012, P = .88). CONCLUSION: In conclusion, the present study demonstrated an elevated prevalence of CVD among KTRs. Patient characteristics, mainly longer length on dialysis seemed to contribute to a greater prevalence of cardiovascular complications among KTRs from deceased compared with living donors on univariate but not multivariate analysis.
Assuntos
Doenças Cardiovasculares/epidemiologia , Transplante de Rim , Doadores Vivos , Adulto , Arritmias Cardíacas/epidemiologia , Brasil/epidemiologia , Doenças Cardiovasculares/diagnóstico , Distribuição de Qui-Quadrado , Doença da Artéria Coronariana/epidemiologia , Estudos Transversais , Feminino , Humanos , Hipertrofia Ventricular Esquerda/epidemiologia , Transplante de Rim/efeitos adversos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prevalência , Diálise Renal , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Calcificação Vascular/epidemiologiaRESUMO
Recipients of extended-criteria donor (ECD) kidneys have poorer long-term outcomes compared to standard-criteria donor kidney recipients. We report 3-year outcomes from a randomized, phase III study in recipients of de novo ECD kidneys (n = 543) assigned (1:1:1) to either a more intensive (MI) or less intensive (LI) belatacept regimen, or cyclosporine. Three hundred twenty-three patients completed treatment by year 3. Patient survival with a functioning graft was comparable between groups (80% in MI, 82% in LI, 80% in cyclosporine). Mean calculated GFR (cGFR) was 11 mL/min higher in belatacept-treated versus cyclosporine-treated patients (42.7 in MI, 42.2 in LI, 31.5 mL/min in cyclosporine). More cyclosporine-treated patients (44%) progressed to GFR <30 mL/min (chronic kidney disease [CKD] stage 4/5) than belatacept-treated patients (27-30%). Acute rejection rates were similar between groups. Posttransplant lymphoproliferative disorder (PTLD) occurrence was higher in belatacept-treated patients (two in MI, three in LI), most of which occurred during the first 18 months; four additional cases (3 in LI, 1 in cyclosporine) occurred after 3 years. Tuberculosis was reported in two MI, four LI and no cyclosporine patients. In conclusion, at 3 years after transplantation, immunosuppression with belatacept resulted in similar patient survival, graft survival and acute rejection, with better renal function compared with cyclosporine. As previously reported, PTLD and tuberculosis were the principal safety findings associated with belatacept in this study population.
Assuntos
Rejeição de Enxerto/prevenção & controle , Imunoconjugados/uso terapêutico , Imunossupressores/uso terapêutico , Falência Renal Crônica/cirurgia , Transplante de Rim , Complicações Pós-Operatórias , Abatacepte , Adulto , Ciclosporina/uso terapêutico , Feminino , Seguimentos , Taxa de Filtração Glomerular , Sobrevivência de Enxerto , Humanos , Falência Renal Crônica/complicações , Testes de Função Renal , Transtornos Linfoproliferativos/induzido quimicamente , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Risco , Taxa de SobrevidaRESUMO
AIM: This study analyzed the incidence, time course, and risk factors associated with dyslipidemia during the first year after kidney transplantation among patients receiving various immunosuppressive regimens. METHODS: The analysis included 474 kidney transplant recipients receiving cyclosporine (CSA) combined with sirolimus (SRL; n=137) or mycophenolate (MMF, n=58) or everolimus (EVR, n=47); or SRL combined with MMF (n=32); or tacrolimus (TAC) combined with SRL (n=86) or MMF (n=114). All patients received prednisone. We evaluated the influence of demographic features, clinical outcomes, and statin use on lipid profiles during the first year after transplantation. total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (hdl-C), low-density lipoprotein cholesterol (ldl-C), non-HDL-C, TC:HDL-C, LDL-C:HDL-C, TG:HDL-C. RESULTS: Lipid profiles were within the recommended ranges in 28% of patients pretransplantation and in 10% at 1 year; 27% of them received statins. At 1 year, LDL-C<100 mg/dL was observed in 31.8% of patients but more than 35% of these patients still showed other lipid fractions or ratios outside recommended target concentrations. Among all patients with LDL-C>100 mg/dL, almost 70% to 80% had other lipid fractions or ratios within target ranges. A logistic regression analysis showed age, gender, time on dialysis, diabetes, type of calcineurin inhibitor (CSA vs TAC), adjunctive therapy (SRL/EVR vs MMF) and prednisone dose to be associated with dyslipidemia. CONCLUSION: Dyslipidemia is frequent at 1 year after transplantation. The lack of agreement among changes observed in lipid fractions and ratios suggests that more studies are necessary to guide therapy besides targeting LDL-C concentrations as recommended by current guidelines.
Assuntos
Dislipidemias/etiologia , Imunossupressores/efeitos adversos , Transplante de Rim/efeitos adversos , Lipídeos/sangue , Adulto , Análise de Variância , Biomarcadores/sangue , Brasil/epidemiologia , Distribuição de Qui-Quadrado , Ciclosporina/efeitos adversos , Quimioterapia Combinada , Dislipidemias/sangue , Dislipidemias/induzido quimicamente , Dislipidemias/epidemiologia , Everolimo , Feminino , Humanos , Incidência , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/efeitos adversos , Ácido Micofenólico/análogos & derivados , Razão de Chances , Prednisona/efeitos adversos , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Sirolimo/efeitos adversos , Sirolimo/análogos & derivados , Tacrolimo/efeitos adversos , Fatores de Tempo , Resultado do TratamentoRESUMO
We describe a female patient with Alport disease who developed antiglomerular basement membrane nephritis late after kidney transplantation during the treatment of an acute bacterial pyelonephritis and discuss the potential role of the infection as a trigger for the development of this nephritis.
Assuntos
Doença Antimembrana Basal Glomerular/etiologia , Infecções por Escherichia coli/microbiologia , Falência Renal Crônica/cirurgia , Transplante de Rim/efeitos adversos , Nefrite Hereditária/complicações , Pielonefrite/microbiologia , Adolescente , Antibacterianos/uso terapêutico , Doença Antimembrana Basal Glomerular/imunologia , Doença Antimembrana Basal Glomerular/terapia , Autoanticorpos/sangue , Membrana Basal/imunologia , Ceftriaxona/uso terapêutico , Substituição de Medicamentos , Infecções por Escherichia coli/tratamento farmacológico , Feminino , Humanos , Imunossupressores/administração & dosagem , Falência Renal Crônica/etiologia , Glomérulos Renais/imunologia , Plasmaferese , Pulsoterapia , Pielonefrite/tratamento farmacológico , Resultado do TratamentoRESUMO
Brazil is a country with over 190 000 000 inhabitants and a health system composed of a large public, government managed system. Between 1999 and 2010 the number of deceased donors increased by 161%, from 3.8 to 9.9 pmp, and the number of solid organ transplants increased by 121%, from 2891 to 6402. This growth was a consequence of the creation of a well-organized national transplant program. Government funding, decentralization and educational investment in transplant coordinators and related professional were decisive. In 2009 Brazil was the second largest country in the absolute number of kidney transplants (n = 4259). There are significant region disparities in performance which are mainly due to the development status. Improvements in transplant and research regulations resulted in an increasing participation of Brazilian transplant centers in multicenter trials, reaching over 44 studies during the last 11 years. Brazilian centers have been involved in clinical trials using everolimus, sirolimus, fingolimod, mycophenolate mofetyl, mycophenolate sodium, tacrolimus modified-release, sotrastaurin, belatacept, JAK3 inhibitor CP690,550 and valganciclovir. The still increasing number of transplants performed every year along with more efficient regulatory and sanitary analysis, organized clinical research programs and reduction in region performance disparities will eventually increase even more the participation of Brazil in trials worldwide.
Assuntos
Transplante de Rim , Brasil , Ensaios Clínicos como Assunto , História do Século XX , História do Século XXI , Humanos , Imunossupressores/uso terapêutico , Transplante de Órgãos/história , Doadores de Tecidos , Obtenção de Tecidos e ÓrgãosRESUMO
BACKGROUND: Simultaneous pancreas-kidney transplantation (SPKT) is one of the treatments for insulin-dependent chronic renal failure patients. METHODS: One-year patient and kidney allograft survival rates of 150 patients undergoing SPKT were subjected to Cox regression and Kaplan-Meier analyses. Uni- and multivariate methods identified risk factors involved in allograft and patient survival. RESULTS: One-year patient and kidney allograft survival rates were 82% and 80%, respectively. Delayed graft function (DGF) (P = .001; hazard ratio [HR]5.41) and acute kidney rejection episodes (P = .016; HR 3.36) were related to 1 year patient survival as well as intra-abdominal infection (IAI) rates. (IAI). One-year kidney allograft survival was related to DGF (P = .013; odds ratio [OR] 3.39), acute rejection (P = .001; OR 4.74), and IAI (P = .003, OR 6.29). DGF was related to a time on dialysis >27 months (P = .046; OR 2.59), cold kidney ischemia time >14 hours (P = .027; OR 2.94), donor age >25 years (P = .03; OR 2.82), and donor serum sodium concentration >155 mEq/L (P < .0001; OR 1.09). Female kidney to male recipient in 17% of the cases did not increase the risk of DGF. We observed an important correlation between donor serum sodium and creatinine (P < .0001), which suggested undertreatment of diabetes insipidus secondary to brain death. CONCLUSIONS: DGF, acute rejection, and IAI were the main determinants of survival after SPKT. Improving the care of deceased donors may reduce DGF occurrence.
Assuntos
Função Retardada do Enxerto/etiologia , Diabetes Mellitus Tipo 1/cirurgia , Nefropatias Diabéticas/cirurgia , Falência Renal Crônica/cirurgia , Transplante de Rim/efeitos adversos , Rim/fisiopatologia , Transplante de Pâncreas/efeitos adversos , Adolescente , Adulto , Brasil , Distribuição de Qui-Quadrado , Criança , Função Retardada do Enxerto/mortalidade , Função Retardada do Enxerto/fisiopatologia , Diabetes Mellitus Tipo 1/complicações , Nefropatias Diabéticas/etiologia , Feminino , Rejeição de Enxerto/etiologia , Sobrevivência de Enxerto , Humanos , Estimativa de Kaplan-Meier , Falência Renal Crônica/etiologia , Transplante de Rim/mortalidade , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Transplante de Pâncreas/mortalidade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Transplante Homólogo , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND: Simultaneous pancreas-kidney transplantation has evolved as the best treatment for type 1 diabetic patients at end-stage renal disease. The surgical complication rate is high, which is an important barrier to the success of this procedure. The frequent complications that require relaparotomies include fistulas, graft thromboses, and intra-abdominal abscesses. Intestinal obstructions after pancreas transplantation due to internal herniation are not common. PURPOSE: The objective of this article was to review the literature about this problem and describe our personal experience in pancreas transplantation. METHODS: We examined the cases of small bowel obstruction secondary to an internal hernia after following 292 pancreas transplantations in our center from 2000 to 2009 as well as performed a Medline literature review. RESULTS: Only 2 articles described the diagnosis and treatment of internal hernias after pancreas transplantation. However, both contribution were from the same center reporting the same 3 cases, with surgical versus radiologic perspectives. We have described our 2 cases of young pancreas-kidney transplant patients who presented with acute intestinal obstruction due to internal hernia. CONCLUSION: Although internal hernias are rare, they are potentially fatal and difficult to diagnose when they occur after pancreas transplantation. Detection with early surgery demands a high degree of clinical vigilance.
Assuntos
Diabetes Mellitus Tipo 1/cirurgia , Hérnia Abdominal/etiologia , Obstrução Intestinal/etiologia , Transplante de Pâncreas/efeitos adversos , Adulto , Diabetes Mellitus Tipo 1/complicações , Nefropatias Diabéticas/etiologia , Nefropatias Diabéticas/cirurgia , Evolução Fatal , Hérnia Abdominal/cirurgia , Humanos , Obstrução Intestinal/cirurgia , Transplante de Rim , Masculino , Resultado do TratamentoRESUMO
The safety and efficacy of concentration-controlled use of sirolimus (SRL) and cyclosporine (CsA) followed by CsA minimization (CsAm) or elimination (CsAe) beginning at week 13 was compared in a phase 4, open-label, randomized (1:1) trial of renal transplant recipients enrolled between March 2004 and November 2005. The primary endpoint was renal function, measured at 12 months using the Nankivell formula, in patients remaining on therapy. Though a total enrollment of 140 patients in each group was planned to provide an 80% power to detect a difference in means, only 207 subjects were enrolled in this study. Demographic characteristics were similar between groups, with 98.1% recipients of first grafts, 69.1% from living donors, and 7.2% diabetics. At 12 months, there were no differences in renal function (61.08 vs 65.24 mL/min, P = .132); incidence of biopsy-confirmed acute rejection (14.3% vs 22.5%, P = .152); and patient (89.5% vs 92.2%, P = .632), graft (87.6% vs 88.2%, P = .999), and death-censored graft (98.1% vs 94.1%, P = .166) survivals between CsAm and CsAe groups, respectively. There were no differences in the overall rate of study-drug discontinuation (32.4% vs 36.3%, P = .562) but more patients discontinued because of lack of efficacy/graft loss in the CsAe group (4.8% vs 14.7%, P = .018). This study was underpowered to demonstrate the superiority of one regimen over the other. In summary, SRL immunotherapy combined with CsA minimization or elimination showed comparative safety and efficacy. Both regimens offer potential treatment options for de novo renal allograft recipients.
Assuntos
Ciclosporina/uso terapêutico , Transplante de Rim/imunologia , Sirolimo/uso terapêutico , Adulto , Cadáver , Ciclosporina/efeitos adversos , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Etnicidade , Feminino , Teste de Histocompatibilidade , Humanos , Imunossupressores/uso terapêutico , Testes de Função Renal , Transplante de Rim/mortalidade , Transplante de Rim/fisiologia , Doadores Vivos , Masculino , Seleção de Pacientes , Doadores de Tecidos , Transplante Homólogo , Falha de Tratamento , Resultado do TratamentoRESUMO
The impact of surgical site infections (SSIs) on graft function in kidney transplant recipients is controversial. We conducted a matched case-control study (1:1 ratio) between April 2001 and December 2004 in a Brazilian cohort of kidney transplant recipients. The epidemiological and clinical characteristics of SSIs were described based on chart review. The impact on graft function was assessed by comparing serum creatinine measurements and creatinine clearance up to 18 months after transplantation with analysis of variance model. Among 1939 kidney transplants, 120 patients with 145 SSIs were enrolled. Most wound infections were superficial (73.1%). The mortality rate was 0.8%. No impact on graft function was detected. In conclusion, accurate identification of SSIs may have resulted in shorter hospitalization periods, but they had no impact on graft function up to 18 months post transplantation.
Assuntos
Transplante de Rim/efeitos adversos , Rim/fisiopatologia , Infecção da Ferida Cirúrgica/fisiopatologia , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Infecção da Ferida Cirúrgica/mortalidade , Transplante HomólogoRESUMO
The aim of this study was to investigate whether slow graft function (SGF) after transplantation of deceased-donor kidneys affected the prevalence of anemia or the glomerular filtration rate (GFR). We retrospectively evaluated the records of 534 kidney transplant patients who were classified based on their initial renal function, namely, immediate graft function (IGF), slow graft function (SGF), or delayed graft function (DGF). Among the 534 kidney transplant patients studied, the occurrences of each condition were IGF 104, SGF 133, and DGF 297. Six months after transplantation, a greater percentage of DGF patients were anemic compared with the others (P = .028). However, at 12 months after transplantation, SGF patients showed more anemia than the IGF group. DGF and SGF patients displayed similar GFR values at 18 and 24 months after transplantation. However, IGF patients displayed higher GFRs, even when subjects who experienced acute rejection episodes were censored (P = .004). The incidence of acute rejection episodes was similar among SGF and DGF patients. Patients displaying SGF after deceased-donor transplantation showed a greater tendency to be anemic than those displaying IGF. This study also suggested that SGF patients were at risk for acute rejection episodes and/or significantly reduced kidney function as measured by GFR.