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1.
Transplant Proc ; 50(10): 3017-3024, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30577161

RESUMO

A high percentage of family refusal is found for several outcomes in the Donor Register. Misconceptions and concerns regarding donation impede next of kin from making a well-considered decision. The donation request is the moment in which such concerns should be addressed by the requestor. The Communication about Donation-Telephone Advice by Psychologist (CaD-TAP) is a direct telephone intervention for requestors who are about to request the relatives for donation. The aim of this intervention is to improve requestors' communication skills regarding the donation request and thereby increase the consent rate for organ and/or tissue donation. The intervention started on the April 1, 2014, and lasted until December 31, 2014. To determine the effects, the consent and assent rates were compared between requestors who received the CaD-TAP intervention and those who did not. The requestors who received the CaD-TAP intervention (N = 141) had a significantly (P < .001) higher consent rate (58%) compared with the group who did not receive the intervention (N = 1563, consent rate: 34%). More tissue donor requestors received the intervention (74%) and most interventions took place outside office hours (82%). No significant difference was found in the effect of the intervention with regard to type of donation, time, or day. Furthermore, the intervention increased requestors' self-confidence in requesting for donation (P < .001), and a higher self-confidence indicated a significant association with increased consent rate. The intervention is unanimously experienced as positive and valuable by users. Based on these results the intervention is effective in increasing the consent rate for organ and tissue donation.


Assuntos
Comunicação , Pessoal de Saúde/educação , Encaminhamento e Consulta , Doadores de Tecidos/psicologia , Obtenção de Tecidos e Órgãos/métodos , Estudos Transversais , Família , Feminino , Humanos , Masculino , Psicologia/métodos , Telefone , Doadores de Tecidos/estatística & dados numéricos
2.
Ned Tijdschr Geneeskd ; 161: D812, 2017.
Artigo em Holandês | MEDLINE | ID: mdl-28378695

RESUMO

OBJECTIVE: To investigate how the composition of the waiting list for postmortem kidney transplant has developed, and whether the waiting list reflects actual demand. DESIGN: Retrospective research and cohort study. METHOD: We used data from the period 2000-2014 from the Dutch Transplant Foundation, 'RENINE' and Eurotransplant. This concerned data on postmortem kidney donation, live donor transplants, the waiting list and kidney transplantation. RESULTS: The postmortem kidney transplant waiting list included transplantable (T) and non-transplantable (NT) patients. The number of T-patients declined from 1271 in 2000 to 650 in 2014, and the median waiting time between the start of dialysis and postmortem kidney transplant decreased from 4.1 years in 2006 to 3.1 years in 2014. The total number of patients on the waiting list, however, increased from 2263 in 2000 to 2560 in 2014 and in the same period the number of new patient registrations increased from 772 to 1212. In about 80% of the NT-patients the reason for their NT status was not registered. A cohort analysis showed that NT-patients have a 2-times lower chance of a postmortem kidney transplant and a 2-times higher chance of leaving the waiting list without transplantation or of live-donor transplantation. CONCLUSION: The demand for donor kidneys remains high. The increased number of transplants resulted in a declining waiting list for T-patients while the total waiting list is getting longer. Waiting list registration and maintenance need to be improved, to give better insight into the real demand.


Assuntos
Transplante de Rim , Listas de Espera , Humanos , Doadores Vivos , Estudos Retrospectivos , Obtenção de Tecidos e Órgãos
3.
Am J Transplant ; 17(6): 1563-1573, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28009475

RESUMO

Female renal transplant recipients (RTRs) have an increased risk for developing human papillomavirus (HPV)-related (pre)malignant lesions of the genital tract. This study aims to assess the genital prevalence of HPV before and after renal transplantation (RT). In female patients who were counseled for RT at the Radboud University Medical Center Nijmegen, the Netherlands, gynecological examination was performed at first visit, and 1 and 2 years later. HPV self-sampling and questionnaires on sexual behavior were performed every 3 months. In 65 patients who underwent RT, the high-risk human papillomavirus (hrHPV) prevalence as assessed with the highly sensitive SPF10 -LiPA25 test increased significantly from 19% before to 31% after RT (p = 0.045). Based upon the clinically validated Cobas 4800 HPV test, the hrHPV prevalence increased from 10% before to 14% after RT (p = 0.31). During follow-up, no changes in sexual behavior were reported. Thirty-three patients who did not undergo RT showed a hrHPV prevalence of 21% at study entry and of 27% after 12 months with the sensitive test, and a stable prevalence of 16% with the clinically validated test. The results of this study indicate that activation of latent HPV infections may contribute to the increased risk of HPV-related (pre)malignant lesions in female RTRs.


Assuntos
Falência Renal Crônica/virologia , Transplante de Rim/métodos , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Ativação Viral , Adulto , Idoso , Feminino , Seguimentos , Taxa de Filtração Glomerular , Humanos , Falência Renal Crônica/cirurgia , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Infecções por Papillomavirus/virologia , Prevalência , Prognóstico , Fatores de Risco , Comportamento Sexual , Transplantados , Adulto Jovem
4.
Am J Transplant ; 15(12): 3041-54, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26414703

RESUMO

A better understanding of the course and risk factors for impaired long-term health-related quality of life (HRQoL; ie, physical, psychological, and social-relational functioning) after kidney donation might help clinicians improve the care of live kidney donors. This systematic review and meta-analysis summarizes prospective studies about the course and predictors of HRQoL in living kidney donors. Studies indicate that shortly after donation, donors have lower HRQoL, with minor to moderate changes in psychological and social-relational functioning and major changes in physical functioning. At 3-12 months after donation, HRQoL returned to baseline or was slightly reduced, particularly for fatigue, but scores were still comparable to general population norms. Results were mainly robust across surgery techniques. A limited number of studies examined risk factors for impaired HRQoL, with low psychological functioning before donation as the most consistent predictor. Based on these results, clinicians can inform potential donors that, on average, kidney donors have high long-term HRQoL; however, donors with low psychological functioning at baseline are those most at risk of impaired long-term HRQoL. Future studies should focus on other potentially relevant predictors of postdonation HRQoL, including donor eligibility criteria and donor-recipient relationships, to optimize screening and interventions for donors at risk.


Assuntos
Transplante de Rim/psicologia , Doadores Vivos/psicologia , Nefrectomia/psicologia , Qualidade de Vida/psicologia , Nível de Saúde , Humanos , Doadores Vivos/estatística & dados numéricos , Complicações Pós-Operatórias , Fatores de Tempo
5.
Am J Transplant ; 15(3): 723-33, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25675976

RESUMO

Immunosuppressive treatment of organ transplant recipients is associated with an increase in the occurrence of human papillomavirus (HPV) related anogenital (pre)malignancies. This cohort study investigated the genotype-specific prevalence of HPV infections in a large cohort of female renal transplant recipients (RTRs). Participants self-collected a cervicovaginal sample for detection and genotyping of HPV. Besides, they completed a questionnaire regarding sociodemographic variables, medical data and sexual behavior. Anogenital screening was offered to all HPV-positive participants. A total number of 218 female RTRs was included. The prevalence of mucosal HPV infections was 27.1% and 17.4% for high risk HPV in particular. The studied cohort showed a broad range of HPV genotypes and multiple HPV genotypes were found in 27.1% of HPV-positive patients. Seven participants were identified with occult premalignant anogenital lesions. In conclusion, this study shows a high point-prevalence of HPV in female RTRs (age-matched West-European general population: 9-10%) with a shift in the distribution of genotypes as compared with the general population. Moreover, a substantial number of patients with occult premalignancies was identified. The introduction of self-sampling for HPV positivity can help in early detection of (pre)malignant anogenital lesions in this vulnerable population.


Assuntos
Colo do Útero/virologia , Transplante de Rim , Infecções por Papillomavirus/complicações , Vagina/virologia , Estudos de Coortes , Feminino , Humanos
6.
Transpl Immunol ; 31(4): 184-90, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25258025

RESUMO

Kidney transplantation is the best treatment option for patients with end-stage renal failure. At present, approximately 800 Dutch patients are registered on the active waiting list of Eurotransplant. The waiting time in the Netherlands for a kidney from a deceased donor is on average between 3 and 4 years. During this period, patients are fully dependent on dialysis, which replaces only partly the renal function, whereas the quality of life is limited. Mortality among patients on the waiting list is high. In order to increase the number of kidney donors, several initiatives have been undertaken by the Dutch Kidney Foundation including national calls for donor registration and providing information on organ donation and kidney transplantation. The aim of the national PROCARE consortium is to develop improved matching algorithms that will lead to a prolonged survival of transplanted donor kidneys and a reduced HLA immunization. The latter will positively affect the waiting time for a retransplantation. The present algorithm for allocation is among others based on matching for HLA antigens, which were originally defined by antibodies using serological typing techniques. However, several studies suggest that this algorithm needs adaptation and that other immune parameters which are currently not included may assist in improving graft survival rates. We will employ a multicenter-based evaluation on 5429 patients transplanted between 1995 and 2005 in the Netherlands. The association between key clinical endpoints and selected laboratory defined parameters will be examined, including Luminex-defined HLA antibody specificities, T and B cell epitopes recognized on the mismatched HLA antigens, non-HLA antibodies, and also polymorphisms in complement and Fc receptors functionally associated with effector functions of anti-graft antibodies. From these data, key parameters determining the success of kidney transplantation will be identified which will lead to the identification of additional parameters to be included in future matching algorithms aiming to extend survival of transplanted kidneys and to diminish HLA immunization. Computer simulation studies will reveal the number of patients having a direct benefit from improved matching, the effect on shortening of the waiting list, and the decrease in waiting time.


Assuntos
Teste de Histocompatibilidade/métodos , Falência Renal Crônica/cirurgia , Transplante de Rim/mortalidade , Obtenção de Tecidos e Órgãos/métodos , Listas de Espera , Epitopos de Linfócito B/imunologia , Epitopos de Linfócito T/imunologia , Rejeição de Enxerto/imunologia , Sobrevivência de Enxerto/imunologia , Antígenos HLA/imunologia , Humanos , Rim/imunologia , Rim/cirurgia , Qualidade de Vida , Diálise Renal
7.
Neth J Med ; 72(5): 258-63, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24930459

RESUMO

BACKGROUND: Hypertension in kidney transplant recipients jeopardises graft and patient survival. Guidelines suggest blood pressure targets of ≤130/80 mmHg and sodium intake <90 mmol/day. METHODS: Since the efficacy of antihypertensive treatment among kidney transplant recipients is unknown, we analysed data on office-based blood pressure and use of antihypertensive drugs from the Netherlands Organ Transplant Registry on 5415 kidney transplant recipients. Additionally, we studied dosages, prevalence of treatment-resistant hypertension and 24-hour sodium excretion in 534 kidney transplant recipients from our centre to explore possibilities for therapy optimisation. RESULTS: In patients registered in the Netherlands Organ Transplant Registry, median blood pressure was 134/80 mmHg (interquartile range 122-145/70-85). In 77.2%, the blood pressure was ≥130/80 mmHg; of these patients 10.4% had no registered use, 30.0% used one and 25.9% used ≥3 classes of antihypertensive agents. Parameters from our centre were comparable: 78.7% had a median blood pressure of ≥130/80 mmHg of whom 14.5% had no registered use of antihypertensives and 26.4% used ≥3 classes. Sub-maximal dosages were prescribed in 74.0% of the kidney transplant recipients with a blood pressure of ≥130/80 mmHg while using at least one antihypertensive agent. Treatment-resistant hypertension was present in 7.7%. Median 24-hour sodium excretion was 147 mmol/day (interquartile range 109-195). CONCLUSIONS: This study suggests that therapeutic optimisation of antihypertensive treatment in kidney transplant recipients is, in theory, frequently possible by intensifying pharmacological treatment and by providing more advice on dietary sodium restrictions.


Assuntos
Anti-Hipertensivos/uso terapêutico , Hipertensão/tratamento farmacológico , Transplante de Rim , Adulto , Anti-Hipertensivos/administração & dosagem , Pressão Sanguínea/efeitos dos fármacos , Resistência a Medicamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Sistema de Registros , Sódio/urina
8.
Clin Transplant ; 27(4): E478-83, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23795745

RESUMO

Nowadays, laparoscopic donor nephrectomy (LDN) has become the gold standard to procure live donor kidneys. As the relationship between donor and recipient loosens, it becomes of even greater importance to optimize safety and comfort of the surgical procedure. Low-pressure pneumoperitoneum has been shown to reduce pain scores after laparoscopic cholecystectomy. Live kidney donors may also benefit from the use of low pressure during LDN. To evaluate feasibility and efficacy to reduce post-operative pain, we performed a randomized blinded study. Twenty donors were randomly assigned to standard (14 mmHg) or low (7 mmHg) pressure during LDN. One conversion from low to standard pressure was indicated by protocol due to lack of progression. Intention-to-treat analysis showed that low pressure resulted in a significantly longer skin-to-skin time (149 ± 86 vs. 111 ± 19 min), higher urine output during pneumoperitoneum (23 ± 35 vs. 11 ± 20 mL/h), lower cumulative overall pain score after 72 h (9.4 ± 3.2 vs. 13.5 ± 4.5), lower deep intra-abdominal pain score (11 ± 3.3 vs. 7.5 ± 3.1), and a lower cumulative overall referred pain score (1.8 ± 1.9 vs. 4.2 ± 3). Donor serum creatinine levels, complications, and quality of life dimensions were not significantly different. Our data show that low-pressure pneumoperitoneum during LDN is feasible and may contribute to increase live donors' comfort during the early post-operative phase.


Assuntos
Falência Renal Crônica/cirurgia , Transplante de Rim , Laparoscopia/normas , Doadores Vivos/psicologia , Nefrectomia/normas , Dor Pós-Operatória/prevenção & controle , Pneumoperitônio , Coleta de Tecidos e Órgãos/normas , Método Duplo-Cego , Estudos de Viabilidade , Feminino , Seguimentos , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Prognóstico , Padrão de Cuidado
9.
World J Urol ; 31(4): 901-6, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22331323

RESUMO

BACKGROUND: Poor early graft function (EGF) after living donor kidney transplantation (LDKT) has been found to decrease rejection-free graft survival rates. However, its influence on long-term graft survival remains inconclusive. METHODS: Data were collected on 472 adult LDKTs performed between July 1996 and February 2010. Poor EGF was defined as the occurrence of delayed or slow graft function. Slow function was defined as serum creatinine above 3.0 mg/dL at postoperative day 5 without dialysis. RESULTS: The incidence of slow and delayed graft function was 9.3 and 4.4%, respectively. Recipient overweight, pretransplant dialysis and warm ischemia were identified as risk factors for the occurrence of poor EGF. The rejection-free survival was worse for poor EGF as compared to immediate graft function with an adjusted hazard ratio (HR) of 6.189 (95% CI 4.075-9.399; p < 0.001). Long-term graft survival was impaired in the poor EGF group with an adjusted HR of 4.206 (95% CI 1.839-9.621; p = 0.001). CONCLUSIONS: Poor EGF occurs in 13.7% of living donor kidney allograft recipients. Both, rejection-free and long-term graft survivals are significantly lower in patients with poor EGF as compared to patients with immediate graft function. These results underline the clinical relevance of poor EGF as phenomenon after LDKT.


Assuntos
Sobrevivência de Enxerto/fisiologia , Nefropatias/terapia , Transplante de Rim , Rim/fisiopatologia , Doadores Vivos , Adulto , Creatinina/sangue , Feminino , Humanos , Nefropatias/mortalidade , Transplante de Rim/mortalidade , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Diálise Renal , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Isquemia Quente
10.
J Thromb Haemost ; 10(12): 2484-93, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22970891

RESUMO

BACKGROUND: It is has been suggested that dialysis patients have lower mortality rates for pulmonary embolism than the general population, because of platelet dysfunction and bleeding tendency. However, there is limited information whether dialysis is indeed associated with a decreased mortality risk from pulmonary embolism. OBJECTIVE: The aim of our study was to evaluate whether mortality rate ratios for pulmonary embolism were lower than for myocardial infarction and stroke in dialysis patients compared with the general population. METHODS: Cardiovascular causes of death for 130,439 incident dialysis patients registered in the ERA-EDTA Registry were compared with the cardiovascular causes of death for the European general population. RESULTS: The age- and sex-standardized mortality rate (SMR) from pulmonary embolism was 12.2 (95% CI 10.2-14.6) times higher in dialysis patients than in the general population. The SMRs in dialysis patients compared with the general population were 11.0 (95% CI 10.6-11.4) for myocardial infarction, 8.4 (95% CI 8.0-8.8) for stroke, and 8.3 (95% CI 8.0-8.5) for other cardiovascular diseases. In dialysis patients, primary kidney disease due to diabetes was associated with an increased mortality risk due to pulmonary embolism (HR 1.9; 95% CI 1.0-3.8), myocardial infarction (HR 4.1; 95% CI 3.4-4.9), stroke (HR 3.5; 95% CI 2.8-4.4), and other cardiovascular causes of death (HR 3.4; 95% CI 2.9-3.9) compared with patients with polycystic kidney disease. CONCLUSIONS: Dialysis patients were found to have an unexpected highly increased mortality rate for pulmonary embolism and increased mortality rates for myocardial infarction and stroke.


Assuntos
Infarto do Miocárdio/mortalidade , Embolia Pulmonar/mortalidade , Diálise Renal , Acidente Vascular Cerebral/mortalidade , Estudos de Coortes , Feminino , Humanos , Masculino
11.
Transplant Proc ; 44(5): 1222-6, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22663989

RESUMO

BACKGROUND: Recent studies investigating early graft function (EGF) after living donor kidney transplantation (LDKT) identified prolonged warm ischemia time (WIT) as a risk factor for the occurrence of poor EGF. The latter is associated with long-term graft loss; therefore the question arises whether prolonged WIT affects long-term outcomes in LDKT. METHODS: Data were collected on 472 consecutive adult LDKTs. Patients were divided according to the total WIT into 3 groups with short (<30 minutes), intermediate (30-45 minutes), or prolonged (>45 minutes) WIT. RESULTS: Of all patients, 193 (40.9%) experienced short, 249 (52.8%) intermediate, and 30 (6.4%) prolonged WIT. Prolonged WIT was a significant risk factor for the occurrence of poor EGF with an adjusted odds ratio of 4.252 (95% confidence interval [CI), 1.914 -9.447). Long-term graft survival was impaired in patients with prolonged WIT, with an adjusted hazard ratio of 3.163 (95% CI, 1.202-8.321). Multivariate analysis revealed determinants of prolonged WIT, including laparoscopic procurement, recipient overweight, right donor kidney, and multiple renal arteries. CONCLUSION: Prolonged WIT impairs long-term graft survival in LDKT. This finding underlines the need to develop strategies to avoid the occurrence of prolonged WIT in LDKT.


Assuntos
Transplante de Rim/efeitos adversos , Doadores Vivos , Disfunção Primária do Enxerto/etiologia , Isquemia Quente/efeitos adversos , Adulto , Distribuição de Qui-Quadrado , Feminino , Sobrevivência de Enxerto , Humanos , Estimativa de Kaplan-Meier , Transplante de Rim/métodos , Transplante de Rim/mortalidade , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Países Baixos , Razão de Chances , Disfunção Primária do Enxerto/mortalidade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Isquemia Quente/mortalidade
12.
Br J Surg ; 98(9): 1260-6, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21656512

RESUMO

BACKGROUND: Donation after cardiac death (DCD) expands the pool of donor kidneys, but is associated with warm ischaemic injury. Two methods are used to preserve kidneys from controlled DCD donors and reduce warm ischaemic injury: in situ preservation using a double-balloon triple-lumen catheter (DBTL) inserted via the femoral artery and direct cannulation of the aorta after rapid laparotomy. The aim of this study was to compare these two techniques. METHODS: This was a retrospective cohort study of 165 controlled DCD procedures in two regions in the Netherlands between 2000 and 2006. RESULTS: There were 102 donors in the DBTL group and 63 in the aortic group. In the aortic group the kidney discard rate was lower (4·8 versus 28·2 per cent; P < 0·001), and the warm (22 versus 27 min; P < 0·001) and the cold (19 versus 24 h; P < 0·001) ischaemia times were shorter than in the DBTL group. Risk factors for discard included preservation with the DBTL catheter (odds ratio (OR) 5·19, 95 per cent confidence interval 1·88 to 14·36; P = 0·001) and increasing donor age (1·05, 1·02 to 1·07; P < 0·001). Warm ischaemia time had a significant effect on graft failure (hazard ratio 1·04, 1·01 to 1·07; P = 0·009), and consequently graft survival was higher in the aortic cannulation group (86·2 per cent versus 76·8 per cent in the DBTL group at 1 year; P = 0·027). CONCLUSION: In this retrospective study, direct aortic cannulation appeared to be a better method to preserve controlled DCD kidneys.


Assuntos
Morte , Transplante de Rim/métodos , Preservação de Órgãos/métodos , Obtenção de Tecidos e Órgãos/métodos , Idoso , Cateterismo , Cateterismo Periférico , Feminino , Sobrevivência de Enxerto , Humanos , Hepatopatias/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Doadores de Tecidos/estatística & dados numéricos , Resultado do Tratamento , Isquemia Quente
13.
Clin Nephrol ; 74(6): 433-9, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21084046

RESUMO

BACKGROUND: Cinacalcet is used for treating secondary hyperparathyroidism in dialysis patients, but it is currently unknown whether it can safely be continued immediately after renal transplantation. METHODS: We prospectively studied renal transplant recipients with secondary hyperparathyroidism who were receiving cinacalcet before transplantation and continued treatment afterwards (n = 29) at a dose of 30 mg/day. Cinacalcet dose was titrated to serum calcium. Patients were followed for 6 months. Incidence of hypercalcemia, serum calcium and intact PTH (iPTH) were analyzed. Tacrolimus levels, acute rejection rate and renal function were compared with an age and sex matched control group. RESULTS: In 16 patients hypercalcemia was observed after transplantation. Severe hypercalcemia (>= 2.87 mmol/l) (n = 4) and hypocalcemia (n = 2) were infrequent. No difference in acute rejection rate or renal function between the cinacalcet and the control group was found. There also was no clinically relevant influence of cinacalcet on tacrolimus levels. CONCLUSIONS: Our study shows that cinacalcet can safely be continued immediately after renal transplantation. Studies are needed to determine if continuation of cinacalcet is better than early withdrawal. Also, the optimum dose of cinacalcet and the long-term effects of cinacalcet after renal transplantation must be defined.


Assuntos
Calcimiméticos/administração & dosagem , Hiperparatireoidismo Secundário/tratamento farmacológico , Transplante de Rim , Naftalenos/administração & dosagem , Adulto , Biomarcadores/sangue , Calcimiméticos/efeitos adversos , Cálcio/sangue , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Cinacalcete , Esquema de Medicação , Feminino , Taxa de Filtração Glomerular , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto/efeitos dos fármacos , Humanos , Hipercalcemia/induzido quimicamente , Hiperparatireoidismo Secundário/sangue , Imunossupressores/uso terapêutico , Transplante de Rim/efeitos adversos , Masculino , Pessoa de Meia-Idade , Naftalenos/efeitos adversos , Países Baixos , Hormônio Paratireóideo/sangue , Fosfatos/sangue , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento
14.
Ned Tijdschr Geneeskd ; 151(12): 696-701, 2007 Mar 24.
Artigo em Holandês | MEDLINE | ID: mdl-17447597

RESUMO

OBJECTIVE: To assess the number of potential organ donors and the main reasons why organ donation is not performed. DESIGN: Retrospective. METHOD: The number of potential heart-beating (HB) and non-heart-beating (NHB) donors was assessed by reviewing the medical records of 588o patients who died between 2001 and 2004 in 52 intensive-care units (ICUs) in 30 hospitals. The number of actual donations was also assessed. RESULTS: The potential of HB donors was 2.5 to possibly 6.6% of all ICU deaths and HB donation was performed in 1.9% of all ICU deaths. The potential of NHB donors of category III was at least 4.2% of all ICU deaths and NHB donation was performed in 1.0% of all ICU deaths. The main difficulty in the donation process was objection from family members, which was reported in 45% of all potential HB and NHB donors and in 59% of all donation requests to relatives. Of the potential HB and NHB donors 7.3% were not identified as potential donors. CONCLUSION: These results confirm that organ-donor potential is greater than the number of actual donations. Objection from family members is the main limiting factor.


Assuntos
Unidades de Terapia Intensiva/estatística & dados numéricos , Transplante de Órgãos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Família , Humanos , Países Baixos , Estudos Retrospectivos
15.
Neth J Med ; 65(1): 23-8, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17293636

RESUMO

BACKGROUND: The introduction of sirolimus has provided the opportunity to develop an immunosuppressive regimen without the nephrotoxic calcineurin inhibitors. METHODS: We conducted a first trial in 30 renal allograft recipients. Ten patients were followed prospectively and received sirolimus, to achieve a target blood level of 10 to 15 ng/ml, induction therapy with one dose of daclizumab, low-dose steroids and mycophenolate mofetil. We compared this group with a historical control group of 20 patients who received our standard treatment consisting of tacrolimus, low-dose steroids, and mycophenolate mofetil. RESULTS: After a mean follow-up of 15 weeks, seven patients developed an acute rejection in the sirolimus group (70%) compared with three patients in the tacrolimus group (15%) (p.<0.01). Because of this unacceptable high rate of acute rejections we conducted a second prospective pilot study in nine patients. These patients received sirolimus in combination with two doses of daclizumab, high-dose steroids and mycophenolate mofetil. No rejections occurred under this immunosuppressive regimen; however, many immunosuppression-related adverse events were seen. CONCLUSION: The present study demonstrates an unacceptably high rate of acute rejections (70%) in patients treated with sirolimus, daclizumab, mycophenolate mofetil and low-dose prednisolone. No rejections but many adverse events were seen when sirolimus was given in combination with high-dose steroids.


Assuntos
Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Transplante de Rim , Sirolimo/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Humanizados , Daclizumabe , Feminino , Glucocorticoides/uso terapêutico , Humanos , Imunoglobulina G/uso terapêutico , Imunossupressores/efeitos adversos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapêutico , Prednisolona/uso terapêutico , Sirolimo/efeitos adversos , Tacrolimo/uso terapêutico
16.
Kidney Int ; 70(7): 1355-7, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16912706

RESUMO

Recent studies have reported a significant increase of proteinuria in kidney transplant recipients who were switched from a calcineurin inhibitor (CI) to sirolimus. This has (partly) been ascribed to the hemodynamic renal effects of CI withdrawal. We have evaluated the evolution of proteinuria in renal transplant recipients who underwent conversion from azathioprine to sirolimus. In a randomized, prospective, multicenter study called RESCUE (Recurrent cutanEous Squamous cell Carcinoma Under RapamunE) the efficacy and safety is investigated of conversion to sirolimus in stable renal transplant recipients with a cutaneus squamous cell carcinoma (SCC). In our center 25 patients have been included in this study of which 13 patients were randomized to continue their current immunosuppressive treatment and 12 to conversion to sirolimus. After a mean follow-up of 360 days mean proteinuria increased from 0.37+/-0.34 to 1.81+/-1.73 g/24 h after conversion to sirolimus (P<0.005). In the control group there was no change in proteinuria. A significant increase of proteinuria was observed in all seven patients with proteinuria before conversion, whereas proteinuria remained absent in all patients without previous proteinuria. Two of the patients with proteinuria were converted from cyclosporine and five were converted from azathioprine to sirolimus. Sirolimus was discontinued in five patients with proteinuria, and in all of them proteinuria declined to baseline values. Our study demonstrates that conversion from azathioprine to sirolimus after kidney transplantation may cause a reversible increase of proteinuria. Sirolimus-induced proteinuria therefore cannot be ascribed to the hemodynamic renal effects of withdrawal of CI.


Assuntos
Azatioprina/uso terapêutico , Terapia de Imunossupressão , Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Transplante de Rim , Rim/efeitos dos fármacos , Proteinúria/induzido quimicamente , Sirolimo/efeitos adversos , Idoso , Inibidores de Calcineurina , Carcinoma de Células Escamosas/prevenção & controle , Creatinina/sangue , Creatinina/urina , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Proteinúria/diagnóstico , Neoplasias Cutâneas/prevenção & controle , Fatores de Tempo
17.
J Am Acad Dermatol ; 49(3): 407-12, 2003 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-12963902

RESUMO

INTRODUCTION: After renal transplantation, the incidence of premalignant and malignant skin lesions is high. Treatment with acitretin improves the number and aspect of actinic keratoses and appears to reduce the incidence of squamous cell carcinomas, but treatment is hampered by frequent side effects. No optimal long-term dosing advice is available. METHODS: A total of 26 long-term renal transplant recipients were randomized to 1-year treatment with acitretin, either 0.4 mg/kg/d throughout the whole year or 0.4 mg/kg/d during the first 3 months followed by 0.2 mg/kg/d for the remaining 9 months. At 9 different time points, the number of actinic keratoses and tumors was counted, and erythema and thickness of the lesions, and severity of side effects were scored. Patient's judgment was recorded using visual analog scores. RESULTS: In both groups, the number of actinic keratoses decreased by nearly 50%, but the number of new malignant tumors during the study year was similar to the number of tumors in the year before the study. Thickness of the keratoses decreased significantly in both groups. Acitretin dose had to be reduced in most patients because of the frequent occurrence of mucocutaneous side effects, such as cheilitis, excessive peeling of the skin, and hair disorders. In the 14 patients randomized to continuous treatment with a dose of 0.4 mg/kg/d, this dose could be maintained in 3 of 14 patients only. Temporary interruption of acitretin therapy was necessary in 7 of 26 patients. Patients' contentment about the aspect of their skin increased significantly, with no differences between groups. CONCLUSIONS: Acitretin therapy decreased the number of actinic keratoses in renal transplant recipients at a low maintenance dose of 0.2 mg/kg/d and significantly decreased the degree of thickness of the lesions. However, the incidence of new skin malignancies remained unchanged. Despite the high incidence of mucocutaneous side effects, patient's contentment with the aspect of their skin increased significantly.


Assuntos
Acitretina/administração & dosagem , Transplante de Rim , Lesões Pré-Cancerosas/tratamento farmacológico , Lesões Pré-Cancerosas/patologia , Neoplasias Cutâneas/tratamento farmacológico , Neoplasias Cutâneas/patologia , Adulto , Idoso , Análise de Variância , Biópsia por Agulha , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Seguimentos , Humanos , Imuno-Histoquímica , Ceratolíticos/administração & dosagem , Assistência de Longa Duração , Masculino , Pessoa de Meia-Idade , Probabilidade , Valores de Referência , Medição de Risco , Estatísticas não Paramétricas , Resultado do Tratamento
18.
Clin Nephrol ; 59(1): 1-9, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12572924

RESUMO

AIM: Pauci-immune small vessel vasculitis (SVV) and anti-GBM disease are the most common causes of rapidly progressive glomerulonephritis (RPGN) and they frequently lead to end-stage renal disease. For renal replacement therapy, renal transplantation is the preferred treatment option. However, in patients with glomerular diseases, the outcome of renal transplantation can be adversely affected by recurrence of the original disease. The information in the medical literature on the outcome of renal transplantation in patients with RPGN is limited because most data are derived from case studies and from studies involving a small number of patients. METHODS: We studied the outcome of renal transplantation in patients with pauciimmune SVV or anti-GBM disease, transplanted in our center between 1968 and 2000. Patient and graft survival were compared with a matched control group from our hospital. We specifically looked for any evidence of recurrent disease. RESULTS: Included in the study were 43 patients (31 male, 12 female) with a mean age (+/- SD) of 48 +/- 15 years at transplantation. Patients were diagnosed as Wegener's granulomatosis (n = 8), microscopic polyangiitis (n = 7), renal limited vasculitis (n = 18) and anti-GBM disease (n = 10). The average follow-up was 62 +/- 57 months. No graft was lost due to recurrence of the underlying disease. One patient with Wegener's granulomatosis had a relapse with only extrarenal manifestations 5 months after transplantation. Patient and graft survival at 5 years after transplantation were 77% and 60%. Survival rates were not significantly different from a matched control group of renal transplant patients with other underlying diseases, 79% and 56%, respectively. Patients with pauci-immune SVV or anti-GBM disease developed significantly more malignancies than the control group (p = 0.02). CONCLUSIONS: Recurrence of pauci-immune SVV and anti-GBM disease after transplantation is rare. Renal transplantation can be successfully performed in patients with pauciimmune vasculitis or anti-GBM disease. Physicians should be aware of the greater risk of developing malignancies, especially skin cancer.


Assuntos
Doença Antimembrana Basal Glomerular/complicações , Doença Antimembrana Basal Glomerular/cirurgia , Glomerulonefrite/complicações , Glomerulonefrite/cirurgia , Falência Renal Crônica/etiologia , Falência Renal Crônica/cirurgia , Transplante de Rim , Avaliação de Resultados em Cuidados de Saúde , Vasculite/complicações , Vasculite/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Antimembrana Basal Glomerular/mortalidade , Feminino , Glomerulonefrite/mortalidade , Sobrevivência de Enxerto , Humanos , Falência Renal Crônica/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Taxa de Sobrevida , Vasculite/mortalidade
20.
Clin Nephrol ; 56(4): 279-88, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11680657

RESUMO

BACKGROUND: The outcome of renal transplantation in patients with IgA nephropathy (IgAN) may be affected by recurrence of the original disease. Despite this risk of recurrent glomerulonephritis, graft survival in patients with IgAN is considered good although formal comparisons with graft survival in patients with other renal diseases have given conflicting results. METHODS: We have studied both recurrence rate and outcome after renal transplantation in 79 adult patients with IgAN, all of whom received a first renal graft (55 cadaveric, 24 living-related donor) in our center in the period between 1969 and 1997. Graft survival in patients with IgAN was compared with the outcome in patients with pyelonephritis and adult polycystic kidney disease (group 2) and patients with non-IgA primary glomerulonephritis (group 3). RESULTS: Follow-up averaged 5.6 +/- 4.5 years. Histological evidence of mesangial IgA deposits was present in 17 of 32 available biopsies (53%). Clinically recurrent IgAN was diagnosed only in 7 patients (9% of all recipients), with a higher incidence in recipients of a living-related donor graft (5/24 (20%) vs 2/55 (4%)). These recurrences were diagnosed in biopsies taken 13-145 months after transplantation; and all were characterized by significant proteinuria (> 1 g/day). In only one patient the graft was lost due to the recurrence. For recipients of a cadaveric graft, the 5-year graft survival was significantly better in IgAN patients than in both reference groups (86% vs 67% in group 2; p = 0.012, and 60% in group 3; p = 0.007). This difference remained significant after censoring for death. There was no statistically significant difference in the patient survival between the groups. The rejection rate in the first 3 months was numerically lower in the IgAN patients (37% vs 43% and 49%, respectively). and total immunological failure rate was also lower in the IgAN patients compared to the control groups (13% vs 21% and 23%, respectively); although the differences were not statistically significant. The 5- and 10-year graft survival in recipients of living-related donor grafts was significantly better in IgAN patients than in group 3 (96% and 84% vs 64% and 21%, respectively; p = 0.02), but similar to graft survival in group 2 (87% and 75%). CONCLUSION: A clinical recurrence of IgAN occurred in 4% of patients with a cadaveric donor graft and 20% of patients with a living-related donor graft. The recurrence had negligible influence on 5- and 10-year graft survival. Graft survival after cadaveric transplantation was better in the IgAN patients compared to control groups; possibly due to the lower immunological failure rate in IgAN.


Assuntos
Glomerulonefrite por IGA/cirurgia , Sobrevivência de Enxerto , Falência Renal Crônica/cirurgia , Transplante de Rim , Doadores Vivos , Doenças Renais Policísticas/cirurgia , Pielonefrite/cirurgia , Adulto , Cadáver , Feminino , Seguimentos , Glomerulonefrite por IGA/complicações , Glomerulonefrite por IGA/patologia , Humanos , Falência Renal Crônica/etiologia , Falência Renal Crônica/patologia , Masculino , Pessoa de Meia-Idade , Doenças Renais Policísticas/complicações , Doenças Renais Policísticas/patologia , Pielonefrite/complicações , Pielonefrite/patologia , Recidiva , Fatores de Tempo , Resultado do Tratamento
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