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1.
Transplant Direct ; 10(6): e1651, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38817628

ABSTRACT

Background: There is no consensus on the ideal strategy to treat posttransplant focal segmental glomerulosclerosis. The multiple-target therapy, which consisted of high-dose intravenous cyclosporine, prednisone, and plasmapheresis, showed favorable results. Methods: This single-center, prospective study sought to evaluate the multiple-target therapy in an independent cohort of patients. Results: Thirteen patients with posttransplant focal segmental glomerulosclerosis received multiple-target therapy. Complete remission was achieved in 2 patients (15.4%), and partial remission in another 2 patients (15.4%). Four patients (30.7%) did not show remission, and 5 patients (38%) lost the graft because of posttransplant focal segmental glomerulosclerosis during the 12-mo follow-up. Premature discontinuation of treatment occurred in 10 patients (77%), all associated with infectious adverse events. Cytomegalovirus was the most common complication, and preemptive therapy was used instead of prophylaxis. Conclusions: In this cohort of patients, the efficacy of the multiple-target therapy was poor and limited by the high incidence of infectious adverse events.

4.
Clin J Am Soc Nephrol ; 16(8): 1247-1255, 2021 08.
Article in English | MEDLINE | ID: mdl-34362788

ABSTRACT

BACKGROUND AND OBJECTIVES: In patients with kidney failure due to IgA nephropathy, IgA deposits can recur in a subsequent kidney transplant. The incidence, effect, and risk factors of IgA nephropathy recurrence is unclear, because most studies have been single center and sample sizes are relatively small. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed a multicenter, international, retrospective study to determine the incidence, risk factors, and treatment response of recurrent IgA nephropathy after kidney transplantation. Data were collected from all consecutive patients with biopsy-proven IgA nephropathy transplanted between 2005 and 2015, across 16 "The Post-Transplant Glomerular Disease" study centers in Europe, North America, and South America. RESULTS: Out of 504 transplant recipients with IgA nephropathy, recurrent IgA deposits were identified by kidney biopsy in 82 patients; cumulative incidence of recurrence was 23% at 15 years (95% confidence interval, 14 to 34). Multivariable Cox regression revealed a higher risk for recurrence of IgA deposits in patients with a pre-emptive kidney transplant (hazard ratio, 3.45; 95% confidence interval, 1.31 to 9.17) and in patients with preformed donor-specific antibodies (hazard ratio, 2.59; 95% confidence interval, 1.09 to 6.19). After kidney transplantation, development of de novo donor-specific antibodies was associated with subsequent higher risk of recurrence of IgA nephropathy (hazard ratio, 6.65; 95% confidence interval, 3.33 to 13.27). Immunosuppressive regimen was not associated with recurrent IgA nephropathy in multivariable analysis, including steroid use. Graft loss was higher in patients with recurrence of IgA nephropathy compared with patients without (hazard ratio, 3.69; 95% confidence interval, 2.04 to 6.66), resulting in 32% (95% confidence interval, 50 to 82) graft loss at 8 years after diagnosis of recurrence. CONCLUSIONS: In our international cohort, cumulative risk of IgA nephropathy recurrence increased after transplant and was associated with a 3.7-fold greater risk of graft loss.


Subject(s)
Antibodies/blood , Glomerulonephritis, IGA/epidemiology , Kidney Failure, Chronic/etiology , Kidney Failure, Chronic/surgery , Adult , Allografts/immunology , Allografts/pathology , Biopsy , Brazil/epidemiology , Europe/epidemiology , Female , Glomerulonephritis, IGA/complications , Glomerulonephritis, IGA/drug therapy , Glomerulonephritis, IGA/pathology , Graft Survival , Humans , Incidence , Kidney/pathology , Kidney Transplantation , Male , Middle Aged , Recurrence , Retrospective Studies , Risk Factors , United States/epidemiology
5.
Rev. adm. pública (Online) ; 54(3): 524-544, maio-jun. 2020. tab
Article in English | LILACS | ID: biblio-1136963

ABSTRACT

Abstract Collective leadership, reflecting the representative and participatory character of bureaucracies, is known to have a good fit for public organizations. Despite the importance of the topic, very few studies have examined what triggers the emergence of shared or participative leadership in public organizations and how these plural forms of leadership translate into team outcomes. To fill this gap, this study explores whether the existence of an organizational climate characterized by participative safety (a climate characterized by shared purpose, social support, and voice) can facilitate the emergence of collective forms of leadership, such as shared leadership. Further, we investigate if shared leadership ultimately influences an important organizational outcome: voluntary turnover. To test our model, we conducted a field study with 96 public schools and more than 1,000 teachers of the public educational system of the city of Rio de Janeiro. Our results highlight the importance of the existence of a favorable organizational climate for the emergence of shared leadership and provide evidence of the positive effects of this type of leadership on reducing turnover ratings among public teachers.


Resumen El liderazgo compartido, que refleja el carácter representativo y participativo de las organizaciones públicas, es reconocido por su adecuación a este tipo de burocracia. Sin embargo, a pesar de la importancia del tema, pocos son los estudios han examinado qué desencadena la aparición del liderazgo compartido o participativo en las organizaciones públicas y cómo estas formas plurales de liderazgo se traducen en resultados organizacionales. Para llenar esta brecha, exploramos cómo la existencia de un clima organizacional caracterizado por la seguridad participativa (un clima determinado por propósito compartido, apoyo social y voz) puede facilitar estilos de colectivos de liderazgo, como el liderazgo compartido. Además, investigamos si el liderazgo puede tener impacto sobre un importante indicador organizacional: rotación de personal. Para probar nuestro modelo, realizamos un estudio de campo con 96 escuelas públicas y más de 1.000 profesores de la red pública de enseñanza de la ciudad de Río de Janeiro. Nuestros resultados resaltan la importancia de la existencia de un clima organizacional favorable al surgimiento del liderazgo compartido y evidencia los efectos positivos de ese tipo de liderazgo en la reducción de los índices de rotación de profesionales de la red pública.


Resumo A liderança coletiva, que reflete o caráter representativo e participativo das burocracias públicas, é reconhecida como um bom modelo para este tipo de organizações. No entanto, apesar da importância do tópico, poucos estudos exploraram o que promove a emergência da liderança compartilhada ou participativa em organizações públicas e como essas formas plurais de liderança se traduzem em resultados organizacionais. Para preencher essa lacuna, exploramos como a existência de um clima organizacional caracterizado pela segurança participativa (um clima marcado por propósito compartilhado, apoio social e voz) pode facilitar o de estilos de coletivos de liderança, como a liderança compartilhada. Além disso, investigamos se a liderança pode impactar um importante indicador organizacional: rotatividade. Para testar nosso modelo, realizamos um estudo de campo com 96 escolas públicas e mais de 1.000 professores da rede pública de ensino da cidade do Rio de Janeiro. Nossos resultados ressaltam a importância da existência de um clima organizacional favorável ao surgimento de liderança compartilhada e evidencia os efeitos positivos desse tipo de liderança na redução dos índices de rotatividade de profissionais da rede pública.


Subject(s)
Public Administration , Community Participation , Education, Primary and Secondary , Leadership
6.
Clin J Am Soc Nephrol ; 15(2): 247-256, 2020 02 07.
Article in English | MEDLINE | ID: mdl-31974287

ABSTRACT

BACKGROUND AND OBJECTIVES: FSGS recurrence after kidney transplantation is a major risk factor for graft loss. However, the natural history, clinical predictors, and response to treatment remain unclear because of small sample sizes and poor generalizability of single-center studies, and disease misclassification in registry-based studies. We therefore aimed to determine the incidence, predictors, and treatment response of recurrent FSGS in a large cohort of kidney transplant recipients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The Post-Transplant Glomerular Disease (TANGO) project is an observational, multicenter, international cohort study that aims to investigate glomerular disease recurrence post-transplantation. Transplant recipients were screened for the diagnosis of idiopathic FSGS between 2005 and 2015 and details were recorded about the transplant, clinical outcomes, treatments, and other risk factors. RESULTS: Among 11,742 kidney transplant recipients screened for FSGS, 176 had a diagnosis of idiopathic FSGS and were included. FSGS recurred in 57 patients (32%; 95% confidence interval [95% CI], 25% to 39%) and 39% of them lost their graft over a median of 5 (interquartile range, 3.0-8.1) years. Multivariable Cox regression revealed a higher risk for recurrence with older age at native kidney disease onset (hazard ratio [HR], 1.37 per decade; 95% CI, 1.09 to 1.56). Other predictors were white race (HR, 2.14; 95% CI, 1.08 to 4.22), body mass index at transplant (HR, 0.89 per kg/m2; 95% CI, 0.83 to 0.95), and native kidney nephrectomies (HR, 2.76; 95% CI, 1.16 to 6.57). Plasmapheresis and rituximab were the most frequent treatments (81%). Partial or complete remission occurred in 57% of patients and was associated with better graft survival. CONCLUSIONS: Idiopathic FSGS recurs post-transplant in one third of cases and is associated with a five-fold higher risk of graft loss. Response to treatment is associated with significantly better outcomes but is achieved in only half of the cases.


Subject(s)
Glomerulosclerosis, Focal Segmental/surgery , Graft Survival , Kidney Transplantation/adverse effects , Adult , Brazil , Europe , Female , Glomerulosclerosis, Focal Segmental/diagnosis , Glomerulosclerosis, Focal Segmental/physiopathology , Graft Survival/drug effects , Humans , Immunosuppressive Agents/therapeutic use , Male , Middle Aged , Plasmapheresis , Recurrence , Retreatment , Retrospective Studies , Risk Assessment , Risk Factors , Rituximab/therapeutic use , Time Factors , Treatment Outcome , United States
7.
Transpl Int ; 32(11): 1127-1143, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31278785

ABSTRACT

The optimal immunosuppressive regimen for recipients of expanded criteria donor (ECD) kidneys has not been identified. In this single-center study, 171 recipients of ECD kidney transplants were randomized to receive antithymocyte globulin induction, and delayed introduction of reduced dose tacrolimus, prednisone and everolimus (r-ATG/EVR, n = 88), or mycophenolate (r-ATG/MPS, n = 83). No cytomegalovirus (CMV) pharmacological prophylaxis was used. The primary endpoint was the incidence of CMV infection/disease at 12 months. Secondary endpoints included treatment failure [first biopsy-proven acute rejection (BPAR), graft loss, or death] and safety. Patients treated with EVR showed a 89% risk reduction (13.6 vs. 71.6%; HR 0.11, 95% CI 0.06-0.220, P < 0.001) in the incidence of first CMV infection/disease. Incidences of BPAR (16% vs. 5%, P = 0.021), graft loss (11% vs. 1%, P = 0.008), death (10% vs. 1%, P = 0.013), and treatment discontinuation (40% vs. 28%, P = 0.12) were higher in the r-ATG/EVR, leading to premature study termination. Mean glomerular filtration rate was lower in r-ATG/EVR (31.8 ± 18.8 vs. 42.6 ± 14.9, P < 0.001). In recipients of ECD kidney transplants receiving no CMV pharmacological prophylaxis, the use of everolimus was associated with higher treatment failure compared with mycophenolate despite the significant reduction in the incidence of CMV infection/disease (ClinicalTrials.gov.NCT01895049).


Subject(s)
Antilymphocyte Serum/administration & dosage , Donor Selection/methods , Everolimus/administration & dosage , Kidney Failure, Chronic/surgery , Kidney Transplantation/methods , Mycophenolic Acid/administration & dosage , Aged , Cytomegalovirus Infections/prevention & control , Delayed Graft Function , Donor Selection/standards , Female , Glomerular Filtration Rate , Graft Rejection , Humans , Immunosuppression Therapy , Immunosuppressive Agents/therapeutic use , Incidence , Kidney/surgery , Kidney Function Tests , Male , Middle Aged , Prednisone/administration & dosage , Prospective Studies , Risk Assessment , Risk Factors , Tacrolimus/administration & dosage , Treatment Outcome
8.
Nephrology (Carlton) ; 24(11): 1179-1188, 2019 Nov.
Article in English | MEDLINE | ID: mdl-30891898

ABSTRACT

AIM: Focal segmental glomerulosclerosis recurs in up to 30% and up to 80% of adult and pediatric kidney transplant recipients, respectively. There is no standard of care treatment. The purpose of this study was to evaluate clinical characteristics, treatments and outcomes of patients with focal segmental glomerulosclerosis recurrence (FSGSr). METHODS: This was a retrospective single-center cohort study including FSGSr patients treated with plasmapheresis (PP) and combinations of high dose steroids, cyclosporine and rituximab. RESULTS: Among 61 patients included in this analysis the median time to diagnosis was 19 days. The incidence of first biopsy-confirmed FSGSr was 18% reaching 52.4% with follow-up biopsies. During PP treatment 54% of the patients developed infectious complications. PP was discontinued in 37% of patients due to treatment failure (no remission or graft loss) and in 26% due to an adverse event. All patients who discontinued PP due to adverse event did not show clinical response or lost the allograft. The incidence of acute rejection was 34.4%. The incidences of partial and complete remissions were 16.4% and 27.8%, respectively. Overall 6-years patient and graft survivals were 90.7% and 64.5%, respectively. CONCLUSION: This analysis confirms the low, variable and unpredictable rate of FSGSr remission, inconsistencies among available therapeutic options and its high rate of adverse events, and the negative impact on graft survival.


Subject(s)
Glomerulosclerosis, Focal Segmental/epidemiology , Kidney Transplantation , Adolescent , Adult , Child , Female , Glomerulosclerosis, Focal Segmental/therapy , Graft Rejection/epidemiology , Graft Survival , Humans , Kidney Transplantation/adverse effects , Male , Middle Aged , Plasmapheresis/adverse effects , Recurrence , Retrospective Studies , Young Adult
9.
Int J Nephrol ; 2018: 3720591, 2018.
Article in English | MEDLINE | ID: mdl-30112208

ABSTRACT

There are scarce data about clinical presentation and outcomes of posttransplant membranous nephropathy (MN), and few reports include a large number of patients. This was a retrospective cohort including adult patients with posttransplant MN transplanted between 1983 and 2015 in a single center (n=41). Only patients with histological diagnosis of MN in kidney grafts were included. Clinical and laboratory presentation, histological findings, treatment, and outcomes were detailed. Patients were predominantly male (58.5%), with a mean age of 49.4 ± 13.2 years; 15 were considered as recurrent primary MN; 3 were class V lupus nephritis; 14 were considered as de novo cases, 7 secondary and 7 primary MN; and 9 cases were considered primary but it was not possible to distinguish between de novo MN and recurrence. Main clinical presentations were proteinuria (75.6%) and graft dysfunction (34.1%). Most patients with primary recurrent and de novo primary MN were submitted to changes in maintenance immunosuppressive regimen, but no standard strategy was identified; 31 patients presented partial or complete remission, and glomerulopathy appeared not to impact graft and patient survival.

10.
J Bras Nefrol ; 40(1): 95-97, 2018.
Article in English, Portuguese | MEDLINE | ID: mdl-29796577

ABSTRACT

Histoplasmosis is a fungus infection that mainly affects immunosuppressed patients. The authors present a case of a kidney transplant recipient who developed sepsis-like histoplasmosis, na atypical but severe manifestation of the disease. The fungus was found in blood and in a skin biopsy, and the treatment with liposomal amphotericin resulted in hepatotoxicity.


Subject(s)
Histoplasmosis , Kidney Transplantation , Postoperative Complications , Sepsis , Fatal Outcome , Female , Histoplasmosis/diagnosis , Histoplasmosis/drug therapy , Humans , Middle Aged , Postoperative Complications/diagnosis , Postoperative Complications/drug therapy , Sepsis/diagnosis , Sepsis/drug therapy
11.
Transpl Infect Dis ; 20(4): e12907, 2018 Aug.
Article in English | MEDLINE | ID: mdl-29679515

ABSTRACT

INTRODUCTION: Several studies and meta-analysis suggest the mTOR inhibitors are associated with reduced incidence of CMV infection after kidney transplantation, although their effects on the high-risk population have not been investigated thoroughly. OBJECTIVE: This retrospective cohort study investigates the association between immunosuppression and CMV infection in D+/R- kidney transplant recipients receiving preemptive therapy. METHODS: All patients received rabbit anti-thymocyte globulin, tacrolimus, prednisone and azathioprine (AZA), mycophenolate (MPA) or everolimus (EVR). RESULTS: Among 89 D+R-, the overall incidence of CMV infection was 76%, with no difference among the groups AZA vs MPA vs EVR (73 vs 83 vs 74%, P = 0.643). CMV infection occurred later (31 in AZA vs 31 in MPA vs 43 days in EVR group, P < 0.001) and showed a lower trend of recurrences (57% in AZA vs 79% in MPA vs 48% in EVR group, P = 0.058) in the everolimus group. There were no differences in the IgG seroconversion rate (82% in AZA vs 76% in MPA vs 72% in EVR group, P = 0.983). There were no differences in the incidence of biopsy-proven acute rejection (10% in AZA vs 8% in MPA vs 6% in EVR group, P = 0.811) and renal function at 12 months (53.6 in AZA vs 60.3 in MPA vs. 55.4 mL/min/1.73 m2 in EVR group). CONCLUSION: In this cohort of high-risk CMV D+/R- kidney transplant recipients receiving rATG induction and tacrolimus, the use of mTOR inhibitors could only show a tendency towards but not a significant difference on the incidence of CMV events, when compared to antimetabolites.


Subject(s)
Cytomegalovirus Infections/epidemiology , Cytomegalovirus/isolation & purification , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , TOR Serine-Threonine Kinases/antagonists & inhibitors , Adult , Aged , Antiviral Agents/therapeutic use , Cytomegalovirus Infections/drug therapy , Cytomegalovirus Infections/transmission , Cytomegalovirus Infections/virology , Female , Graft Rejection/prevention & control , Humans , Incidence , Male , Middle Aged , Retrospective Studies , Serologic Tests , Tissue Donors , Young Adult
12.
J. bras. nefrol ; 40(1): 95-97, Jan.-Mar. 2018. graf
Article in English | LILACS | ID: biblio-893819

ABSTRACT

Abstract Histoplasmosis is a fungus infection that mainly affects immunosuppressed patients. The authors present a case of a kidney transplant recipient who developed sepsis-like histoplasmosis, na atypical but severe manifestation of the disease. The fungus was found in blood and in a skin biopsy, and the treatment with liposomal amphotericin resulted in hepatotoxicity.


Resumo Histoplasmose é uma infecção fúngica que afeta principalmente pacientes imunossuprimidos. Os autores apresentam um caso de uma receptora de transplante de rim que desenvolveu histoplasmose disseminada, uma manifestação atípica, mas grave da doença. O fungo foi encontrado no sangue e na biópsia cutânea, e o tratamento com anfotericina lipossomal resultou em hepatotoxicidade.


Subject(s)
Humans , Female , Middle Aged , Postoperative Complications/diagnosis , Postoperative Complications/drug therapy , Kidney Transplantation , Sepsis/diagnosis , Histoplasmosis/diagnosis , Histoplasmosis/drug therapy , Fatal Outcome , Sepsis/drug therapy
13.
J. bras. nefrol ; 39(4): 413-423, Oct.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-893792

ABSTRACT

Abstract Cytomegalovirus (CMV) infection in kidney transplantation has changed its clinical spectrum, mostly due to the current and more effective immunosuppression. In the absence of preventive strategies it is associated with significant morbi-mortality. Objective: This study evaluated the incidence of CMV events and its effect on outcomes of kidney transplantation in recipients without pharmacological prophylaxis or targeted preemptive treatment. Results: The study cohort comprised 802 recipients of kidney transplants between 04/30/2014 and 04/30/2015. The majority received induction with anti-thymocyte globulin (81.5%), tacrolimus and prednisone in combination with either mycophenolate (46.3%) or azathioprine (53.7%). The overall incidence of CMV events was 42% (58.6% infection and 41.4% disease). Patients with CMV showed higher incidence of first treated acute rejection (19 vs. 11%, p = 0,001) compared with those without CMV but no differences in graft loss, death or loss to follow-up. The incidence of delayed graft function was higher (56% vs. 37%, p = 0.000) and the eGFR at 1 (41 ± 21 vs. 54 ± 28 ml/min, p = 0.000) and 12 months (50 ± 19 vs. 61 ± 29 ml/min, p = 0.000) were lower in patients with CMV. Recipients age (OR = 1.03), negative CMV serology (OR = 5.21) and use of mycophenolate (OR = 1.67) were associated with increased risk of CMV. Changes in immunosuppression was more often in patients with CMV (63% vs. 31%, p = 0.000). Conclusion: the incidence of CMV events was high and associated with higher incidence of acute rejection and changes in immunosuppression. Besides traditional risk factors, renal function at 1 month was independently associated with CMV infection.


Resumo A infecção por citomegalovírus (CMV) no transplante renal mudou seu espectro clínico, principalmente devido à atual e mais efetiva imunossupressão. Na ausência de estratégias preventivas, está associado a significativa morbimortalidade. Objetivo: este estudo avaliou a incidência de eventos de CMV e seu efeito nos desfechos do transplante renal em receptores sem profilaxia farmacológica ou tratamento preventivo direcionado. Resultados: A coorte do estudo envolveu 802 receptores de transplantes de rim entre 30/04/2014 e 30/04/2015. A maioria recebeu indução com globulina anti-timocitária (81,5%), tacrolimus e prednisona em combinação com micofenolato (46,3%) ou azatioprina (53,7%). A incidência global de eventos de CMV foi de 42% (58,6% de infecção e 41,4% de doença). Os pacientes com CMV apresentaram maior incidência de rejeição aguda do primeiro tratamento (19 vs. 11%, p = 0,001), em comparação com aqueles sem CMV, mas sem diferenças na perda de enxerto, morte ou perda de seguimento. A incidência de função retardada de enxerto foi maior (56% vs. 37%, p = 0,000) e a TFGe a 1 (41 ± 21 vs. 54 ± 28 ml/min, p = 0,000) e 12 meses (50 ± 19 vs. 61 ± 29 ml/min, p = 0.000) foram menores em pacientes com CMV. A idade dos receptores (OR = 1,03), a sorologia negativa para CMV (OR = 5,21) e o uso de micofenolato (OR = 1,67) foram associados ao aumento do risco de CMV. As alterações na imunossupressão foram mais frequentes em doentes com CMV (63% vs. 31%, p = 0,000). Conclusão: a incidência de eventos relacionados a CMV foi alta e associada a maior incidência de rejeição aguda e alterações na imunossupressão. Além dos fatores de risco tradicionais, a função renal com 1 mês foi associada de forma independente à infecção por CMV.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Postoperative Complications/epidemiology , Kidney Transplantation , Cytomegalovirus Infections/epidemiology , Incidence , Retrospective Studies , Cost of Illness
14.
J Bras Nefrol ; 39(2): 224-228, 2017.
Article in English, Portuguese | MEDLINE | ID: mdl-29069249

ABSTRACT

Mycobacterium tuberculosis infection in renal transplant recipients is associated with significant morbidity and mortality. Genitourinary tuberculosis is a less frequent presentation and a high level of suspicion is needed to avoid treatment delay. Management is challenging due to the interaction of calcineurin inhibitors with antituberculous medications and the known side effects of these drugs, with higher prevalence in this population. The authors present a case of a renal transplant recipient with urinary and constitutional symptoms whom is diagnosed with tuberculosis after a prostatic biopsy in an already disseminated stage and develops hepatotoxicity to antituberculous therapy.


Subject(s)
Kidney Transplantation , Postoperative Complications/diagnosis , Tuberculosis, Urogenital/diagnosis , Humans , Male , Middle Aged
15.
J. bras. nefrol ; 39(2): 224-228, Apr.-June 2017. tab, graf
Article in English | LILACS | ID: biblio-893750

ABSTRACT

Abstract Mycobacterium tuberculosis infection in renal transplant recipients is associated with significant morbidity and mortality. Genitourinary tuberculosis is a less frequent presentation and a high level of suspicion is needed to avoid treatment delay. Management is challenging due to the interaction of calcineurin inhibitors with antituberculous medications and the known side effects of these drugs, with higher prevalence in this population. The authors present a case of a renal transplant recipient with urinary and constitutional symptoms whom is diagnosed with tuberculosis after a prostatic biopsy in an already disseminated stage and develops hepatotoxicity to antituberculous therapy.


Resumo A infeção por Mycobacterion tuberculosis nos doentes transplantados renais está associada a morbilidade e mortalidade significativas. A tuberculose genitourinária é uma apresentação menos frequente desta infeção e é necessário um elevado índice de suspeição para evitar atraso no diagnóstico e tratamento. A abordagem terapeutica é desafiante dada a interação dos inibidores da calcineurina com os tuberculostáticos e os vários efeitos secundários destes fármacos, mais prevalentes nesta população. Os autores apresentam um caso de um doente transplantado renal com sintomas urínários e constitucionais que é diagnosticado com tuberculose após biópsia prostática e que desenvolve hepatotoxicidade à terapeutica.


Subject(s)
Humans , Male , Middle Aged , Postoperative Complications/diagnosis , Tuberculosis, Urogenital/diagnosis , Kidney Transplantation
16.
Am J Nephrol ; 45(6): 497-508, 2017.
Article in English | MEDLINE | ID: mdl-28511172

ABSTRACT

BACKGROUND: This analysis compared efficacy, renal function, and histology in kidney transplant recipients receiving tacrolimus (TAC) combined with everolimus (EVR) or mycophenolate (MPS). METHODS: This was a retrospective analysis from a randomized trial in kidney transplant recipients who received a single 3 mg/kg dose of rabbit antithymocyte globulin (r-ATG), TAC, EVR, and prednisone (PRED; r-ATG/EVR, n = 85), basiliximab (BAS), TAC, EVR, and PRED (BAS/EVR, n = 102) or BAS, TAC, MPS, and PRED (BAS/MPS, n = 101). We evaluated the incidence of de novo donor-specific anti-human leukocyte antigens antibodies (DSA) and histology on protocol biopsies at 12 months, and the incidence of acute rejection, estimated glomerular filtration rate (eGFR) and proteinuria at 36 months. RESULTS: At 12 months, there were no differences in de novo DSA (6.4 vs. 3.4 vs. 5.5%) or in subclinical inflammation (2.0 vs. 4.8 vs. 10.2%), interstitial fibrosis/tubular atrophy (57.1 vs. 58.5 vs. 53.8%) and C4d deposition (2.0 vs. 7.3 vs. 2.6%). At 36 months, there were no differences in the incidence of treatment failure (19.0 vs. 27.7 vs. 27.7%, p = 0.186), first biopsy-proven acute rejection (9.5 vs. 21.8 vs. 16.8%, p = 0.073), and urine protein/creatinine ratios (0.53 ± 1.05 vs. 0.62 ± 0.75 vs. 0.71 ± 1.24). eGFR was lower in the BAS/EVR compared to that in the BAS/MPS group (53.4 ± 20.9 vs. 50.8 ± 19.5 vs. 60.7 ± 21.2 mL/min/1.73 m2, p = 0.017) but comparable using a sensitive analysis (49.5 ± 23 vs. 47.5 ± 22.6 vs. 53.6 ± 27.8 mL/min/1.73 m2, p = 0.207). CONCLUSION: In this cohort, the use of EVR and reduced TAC concentrations were associated with comparable efficacy, renal function, and histological parameters compared to the standard-of-care immunosuppressive regimen.


Subject(s)
Graft Rejection/prevention & control , Graft Survival/drug effects , HLA Antigens/immunology , Immunosuppressive Agents/therapeutic use , Kidney Failure, Chronic/therapy , Kidney Transplantation/adverse effects , Adult , Allografts/immunology , Allografts/pathology , Antibodies, Monoclonal/therapeutic use , Antilymphocyte Serum/therapeutic use , Basiliximab , Biopsy , Drug Therapy, Combination/methods , Everolimus/therapeutic use , Female , Glomerular Filtration Rate , Graft Rejection/epidemiology , Graft Rejection/immunology , Graft Rejection/pathology , Humans , Kidney/immunology , Kidney/pathology , Kidney Function Tests , Male , Middle Aged , Mycophenolic Acid/therapeutic use , Prednisone/therapeutic use , Prospective Studies , Recombinant Fusion Proteins/therapeutic use , Retrospective Studies , Tacrolimus/therapeutic use , Tissue Donors , Treatment Failure , Treatment Outcome , Withholding Treatment/statistics & numerical data , Young Adult
17.
Transplantation ; 101(4): 844-850, 2017 Apr.
Article in English | MEDLINE | ID: mdl-27490418

ABSTRACT

BACKGROUND: De novo use of mammalian target of rapamycin inhibitors after kidney transplantation is associated with a concentration-dependent incidence of wound healing adverse events (WHAE). The objective of this analysis was to compare the incidence of WHAE in patients receiving everolimus (EVR) or mycophenolate sodium (MPS). METHODS: This was a predefined subanalysis of a single-center prospective randomized study in which 288 kidney transplant recipients receiving tacrolimus and prednisone were randomized for 3 different regimens: rabbit antithymocyte globulin (r-ATG)/EVR (N = 85); basiliximab (BAS)/EVR (N = 102); BAS/MPS (N = 101). Clinical WHAE were prospectively collected using a prespecified case report form in all study visits. Abdominal ultrasound was performed at 30 days posttransplant to capture subclinical abnormalities. Surgeons were blinded to randomized treatment and no specific surgical procedures were implemented. RESULTS: A higher proportion of patients in BAS/EVR showed at least 1 clinical WHAE (22.3% vs 35.3% vs 22.0%, P = 0.03) and total clinical and subclinical WHAE (35% vs 42% vs 26%, P = 0.014) compared with BAS/MPS, respectively. A higher proportion of patients in r-ATG/EVR showed subclinical WHAE (13% vs 7% vs 4%, P = 0.025) compared with BAS/MPS, respectively. Patients receiving EVR showed a higher risk of developing clinical or subclinical WHAE (r-ATG/EVR vs BAS/MPS hazard ratio 1.30; BAS/EVR vs BAS/MPS hazard ratio 1.73, P = 0.028). CONCLUSIONS: In this cohort of de novo kidney transplant recipients receiving tacrolimus and prednisone, the use of EVR was associated with higher incidence of combined clinical and subclinical WHAE compared with MPS.


Subject(s)
Everolimus/adverse effects , Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Mycophenolic Acid/adverse effects , Wound Healing/drug effects , Adult , Antibodies, Monoclonal/adverse effects , Antilymphocyte Serum/adverse effects , Basiliximab , Brazil , Drug Therapy, Combination , Female , Humans , Male , Middle Aged , Prednisone/adverse effects , Prospective Studies , Recombinant Fusion Proteins/adverse effects , Risk Factors , Tacrolimus/adverse effects , Time Factors , Treatment Outcome , Ultrasonography
18.
J Bras Nefrol ; 39(4): 413-423, 2017.
Article in English, Portuguese | MEDLINE | ID: mdl-29319768

ABSTRACT

Cytomegalovirus (CMV) infection in kidney transplantation has changed its clinical spectrum, mostly due to the current and more effective immunosuppression. In the absence of preventive strategies it is associated with significant morbi-mortality. OBJECTIVE: This study evaluated the incidence of CMV events and its effect on outcomes of kidney transplantation in recipients without pharmacological prophylaxis or targeted preemptive treatment. RESULTS: The study cohort comprised 802 recipients of kidney transplants between 04/30/2014 and 04/30/2015. The majority received induction with anti-thymocyte globulin (81.5%), tacrolimus and prednisone in combination with either mycophenolate (46.3%) or azathioprine (53.7%). The overall incidence of CMV events was 42% (58.6% infection and 41.4% disease). Patients with CMV showed higher incidence of first treated acute rejection (19 vs. 11%, p = 0,001) compared with those without CMV but no differences in graft loss, death or loss to follow-up. The incidence of delayed graft function was higher (56% vs. 37%, p = 0.000) and the eGFR at 1 (41 ± 21 vs. 54 ± 28 ml/min, p = 0.000) and 12 months (50 ± 19 vs. 61 ± 29 ml/min, p = 0.000) were lower in patients with CMV. Recipients age (OR = 1.03), negative CMV serology (OR = 5.21) and use of mycophenolate (OR = 1.67) were associated with increased risk of CMV. Changes in immunosuppression was more often in patients with CMV (63% vs. 31%, p = 0.000). CONCLUSION: the incidence of CMV events was high and associated with higher incidence of acute rejection and changes in immunosuppression. Besides traditional risk factors, renal function at 1 month was independently associated with CMV infection.


Subject(s)
Cytomegalovirus Infections/epidemiology , Kidney Transplantation , Postoperative Complications/epidemiology , Adult , Cost of Illness , Female , Humans , Incidence , Male , Middle Aged , Retrospective Studies
19.
Ther Drug Monit ; 38(4): 447-55, 2016 08.
Article in English | MEDLINE | ID: mdl-27414973

ABSTRACT

BACKGROUND: This study evaluated the influence of pharmaceutical care (PhC) in the intra-individual variability of dose-corrected whole blood tacrolimus (TAC) trough concentrations, adherence to immunosuppressive therapy and clinical outcomes. METHODS: We randomized 128 kidney transplant recipients to receive PhC consisted of predefined instructions provided by a pharmacist (PhC group, n = 64) or standard nurse staff instructions (control group, n = 64) from day 3 to day 90 after kidney transplantation. The study was powered to detect at least 50% reduction in the coefficient of variation (%CV), calculated from 6 dose-corrected whole blood TAC trough concentrations, in the PhC group. Patient adherence was evaluated using Basel Assessment of Adherence to Immunosuppressive Medication Scale (BAASIS) questionnaire. RESULTS: There was no difference in the %CV comparing PhC and control group (31.4% ± 12.3% versus 32.5% ± 16.1%, P = 0.673). There were no differences in the proportion of patients showing TAC concentrations within predefined target concentrations in each study visit. There was no difference in the proportion of nonadherent patients at day 28 (17% versus 26%, P = 0.135) and day 90 (27% versus 25%, P = 0.457) based on BAASIS questionnaire answers, respectively. There were no differences in clinical outcomes. CONCLUSIONS: Universal PhC in addition to standard nurse staff instruction was not associated with reduced intra-individual variability of dose-corrected whole blood TAC trough concentrations or improved adherence.


Subject(s)
Immunosuppressive Agents/blood , Tacrolimus/blood , Adult , Drug Administration Schedule , Female , Graft Rejection/prevention & control , Humans , Immunosuppression Therapy/methods , Immunosuppressive Agents/therapeutic use , Kidney Transplantation/methods , Male , Medication Adherence , Middle Aged , Pharmaceutical Services , Prospective Studies , Tacrolimus/therapeutic use , Transplant Recipients
20.
Ren Fail ; 38(4): 643-7, 2016.
Article in English | MEDLINE | ID: mdl-26906105

ABSTRACT

OBJECTIVE: To establish the occurrence and intensity of podocyturia and its relation to grade of disease activity, as defined by clinical and laboratory criteria. METHODS: Prospective, cross-sectional study involving 50 patients with lupus nephritis and 29 controls, which had podocyturia levels determined from random urine samples using an immunofluorescence technique. Disease activity was graded by BILAG (renal criteria) and an additional system used in the service (S2). RESULTS: Fifty patients with lupus nephritis (WHO classes III, IV and V), with a median age of 37 years, were evaluated. Of these, 86.5% were female, and 52% were BILAG A. Podocyturia quantification in the lupus nephritis and control groups differed significantly (p = 0.009). This score was higher in relation to classes III, IV and V. The correlation with C3 consumption was stronger (p = 0.011) than with C4. The highest levels were found in the most active groups (A and B of BILAG and S2). Lower podocyturia correlated with a lower dose of prednisone. There was no association with the intensity of proteinuria, hematuria or pyuria, serum creatinine levels, among others. CONCLUSIONS: Podocyturia assessment, which was performed by immunofluorescence in this study, can be used as an indicator of disease activity with the advantage of being a urinary biomarker. The levels proved to be higher in patients with lupus nephritis than in the controls and were particularly higher in class IV.


Subject(s)
Lupus Nephritis/urine , Podocytes , Adult , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Prospective Studies , Urine/cytology , Young Adult
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