#06#

 

Revisiones-Clínica-Pronóstico *** Reviews-Clinical-Prognosis

 

TRASPLANTE RENAL *** RENAL TRANSPLANTATION

(Conceptos / Keywords: Renal-Kidney transplantation; Kidney donation-procurement; etc).

 

Enero / January 2001 --- Marzo / March 2004

 

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Enlace / Link

 

[1]

TÍTULO / TITLE:  - Strategies to improve long-term outcomes after renal transplantation.

REVISTA / JOURNAL:  - N Engl J Med. Acceso gratuito al texto completo a partir de los 6 meses de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://content.nejm.org/ 

      ●● Cita: New England J Medicine (NEJM): <> 2002 Feb 21;346(8):580-90.

      ●● Enlace al texto completo (gratuito o de pago) 1056/NEJMra011295

AUTORES / AUTHORS:  - Pascual M; Theruvath T; Kawai T; Tolkoff-Rubin N; Cosimi AB

INSTITUCIÓN / INSTITUTION:  - Renal Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA. mpascual@partners.org  N. Ref:: 99

 

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[2]

TÍTULO / TITLE:  - Clinical practice guidelines for managing dyslipidemias in kidney transplant patients: a report from the Managing Dyslipidemias in Chronic Kidney Disease Work Group of the National Kidney Foundation Kidney Disease Outcomes Quality Initiative.

REVISTA / JOURNAL:  - Am J Transplant 2004;4 Suppl 7:13-53.

      ●● Enlace al texto completo (gratuito o de pago) 1111/j.1600-6135.2004.0355.x

AUTORES / AUTHORS:  - Kasiske B; Cosio FG; Beto J; Bolton K; Chavers BM; Grimm R Jr; Levin A; Masri B; Parekh R; Wanner C; Wheeler DC; Wilson PW

RESUMEN / SUMMARY:  - The incidence of cardiovascular disease (CVD) is very high in patients with chronic kidney (CKD) disease and in kidney transplant recipients. Indeed, available evidence for these patients suggests that the 10-year cumulative risk of coronary heart disease is at least 20%, or roughly equivalent to the risk seen in patients with previous CVD. Recently, the National Kidney Foundation’s Kidney Disease Outcomes Quality Initiative (K/DOQI) published guidelines for the diagnosis and treatment of dyslipidemias in patients with CKD, including transplant patients. It was the conclusion of this Work Group that the National Cholesterol Education Program Guidelines are generally applicable to patients with CKD, but that there are significant differences in the approach and treatment of dyslipidemias in patients with CKD compared with the general population. In the present document we present the guidelines generated by this workgroup as they apply to kidney transplant recipients. Evidence from the general population indicates that treatment of dyslipidemias reduces CVD, and evidence in kidney transplant patients suggests that judicious treatment can be safe and effective in improving dyslipidemias. Dyslipidemias are very common in CKD and in transplant patients. However, until recently there have been no adequately powered, randomized, controlled trials examining the effects of dyslipidemia treatment on CVD in patients with CKD. Since completion of the K/DOQI guidelines on dyslipidemia in CKD, the results of the Assessment of Lescol in Renal Transplantation (ALERT) Study have been presented and published. Based on information from randomized trials conducted in the general population and the single study conducted in kidney transplant patients, these guidelines, which are a modified version of the K/DOQI dyslipidemia guidelines, were developed to aid clinicians in the management of dyslipidemias in kidney transplant patients. These guidelines are divided into four sections. The first section (Introduction) provides the rationale for the guidelines, and describes the target population, scope, intended users, and methods. The second section presents guidelines on the assessment of dyslipidemias (guidelines 1-3), while the third section offers guidelines for the treatment of dyslipidemias (guidelines 4-5). The key guideline statements are supported mainly by data from studies in the general population, but there is an urgent need for additional studies in CKD and in transplant patients. Therefore, the last section outlines recommendations for research.

 

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[3]

TÍTULO / TITLE:  - Prognostic value of myocardial perfusion studies in patients with end-stage renal disease assessed for kidney or kidney-pancreas transplantation: a meta-analysis.

REVISTA / JOURNAL:  - J Am Soc Nephrol. Acceso gratuito al texto completo a partir de 1 año de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://www.jasn.org/ 

      ●● Cita: Journal of the American Society of Nephrology: <> 2003 Feb;14(2):431-9.

AUTORES / AUTHORS:  - Rabbat CG; Treleaven DJ; Russell JD; Ludwin D; Cook DJ

INSTITUCIÓN / INSTITUTION:  - Department of Medicine, Division of Nephrology, McMaster University, Hamilton, Ontario, Canada. rabbatc@mcmaster.ca

RESUMEN / SUMMARY:  - The prognostic utility of myocardial perfusion studies (MPS) such as thallium scintigraphy and dobutamine stress echocardiography (DSE) for stratifying cardiac risk among candidates for kidney or kidney-pancreas transplantation is uncertain. This study is a meta-analysis to determine the prognostic significance of MPS results on future myocardial infarction (MI) and cardiac death (CD) in patients with end-stage renal disease (ESRD) assessed for kidney or kidney-pancreas transplantation. MEDLINE was searched using combinations of MeSH headings and text words for transplantation, coronary artery disease, prognosis, end-stage renal disease, and noninvasive cardiac testing (nuclear scintigraphy and DSE) for primary studies. Studies were included if they reported MPS results and cardiac events in patients assessed for kidney or kidney-pancreas transplantation. Methodologic study quality and outcome data were independently abstracted in duplicate by two researchers. The relative risks (RR) of MI and CD were calculated using a random effects model. Twelve articles met all inclusion criteria; 12 studies reported CD, and 9 reported MI. In eight studies, thallium scintigraphy was used (four with pharmacologic stress, four with exercise stress), whereas four used DSE. When compared with negative tests, positive tests had a significantly increased RR of MI (2.73 [95% CI, 1.25 to 5.97]; P = 0.01) and CD (2.92 [95% CI, 1.66 to 5.12]; P < 0.001). Subgroup analyses of studies of diabetic patients indicated that positive tests were associated with a RR of CD 3.95 (95% CI, 1.48 to 10.5; P = 0.006) and a RR of MI 2.68 (95% CI, 0.95 to 7.57; P = 0.06) when compared with negative tests. In studies evaluating mixed populations of diabetic and nondiabetic patients, positive tests were associated with a RR of CD 2.52 (95% CI, 1.25 to 5.08; P = 0.01) and with a RR of MI 2.79 (95% CI, 0.85 to 9.21; P = 0.09) when compared with a negative test. The presence of reversible defects was associated with an increased risk of MI in diabetic patients and of CD in both subgroups; fixed defects were associated with an increased risk of CD but not MI. It is concluded that positive MPS are useful in identifying patients with significantly increased risk of future MI and CD in both diabetic and nondiabetic ESRD patients.

 

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[4]

TÍTULO / TITLE:  - A randomized long-term trial of tacrolimus/sirolimus versus tacrolimus/mycophenolate mofetil versus cyclosporine (NEORAL)/sirolimus in renal transplantation. II. Survival, function, and protocol compliance at 1 year.

REVISTA / JOURNAL:  - Transplantation 2004 Jan 27;77(2):252-8.

      ●● Enlace al texto completo (gratuito o de pago) 1097/01.TP.0000101495.22734.07

AUTORES / AUTHORS:  - Ciancio G; Burke GW; Gaynor JJ; Mattiazzi A; Roth D; Kupin W; Nicolas M; Ruiz P; Rosen A; Miller J

INSTITUCIÓN / INSTITUTION:  - Department of Surgery, Division of Transplantation, University of Miami School of Medicine, Miami, FL 33101, USA. gciancio@med.miami.edu

RESUMEN / SUMMARY:  - BACKGROUND: In an attempt to reduce chronic calcineurin inhibitor induced allograft nephropathy in first cadaver and human leukocyte antigen non-identical living-donor renal transplantation, sirolimus (Siro) or mycophenolate mofetil (MMF) was tested as adjunctive therapy, with planned dose reductions of tacrolimus (Tacro) over the first year postoperatively. Adjunctive Siro therapy with a similar dose reduction algorithm for Neoral (Neo) was included for comparison. METHODS: The detailed dose reduction plan (Tacro and Siro, group A; Tacro and MMF, group B; Neo and Siro, group C) is described in our companion report in this issue of Transplantation. The present report documents function, patient and graft survival, protocol compliance, and adverse events. RESULTS: As mentioned (in companion report), group demographics were similar. The present study shows no significant differences in 1-year patient and graft survival but does show a trend that points to more difficulties in group C by way of a rising slope of serum creatinine concentration (P=0.02) and decreasing creatinine clearance (P=0.04). There were more patients who discontinued the protocol plan in group C. Thus far, no posttransplant lymphomas have appeared, and infectious complications have not differed among the groups. However, a greater percentage of patients in group C were placed on antihyperlipidemia therapy, with an (unexpected) trend toward a higher incidence of posttransplant diabetes mellitus in this group. Group A required fewer, and group B the fewest, antihyperlipidemia therapeutic interventions (P<0.00001). CONCLUSIONS: This 1-year interim analysis of a long-term, prospective, randomized renal-transplant study indicates that decreasing maintenance dosage of Tacro with adjunctive Siro or MMF appears to point to improved long-term function, with reasonably few adverse events.

 

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[5]

TÍTULO / TITLE:  - Treatment and outcome of invasive bladder cancer in patients after renal transplantation.

REVISTA / JOURNAL:  - J Urol 2004 Mar;171(3):1085-8.

      ●● Enlace al texto completo (gratuito o de pago) 1097/01.ju.0000110612.42382.0a

AUTORES / AUTHORS:  - Master VA; Meng MV; Grossfeld GD; Koppie TM; Hirose R; Carroll PR

INSTITUCIÓN / INSTITUTION:  - Departments of Urology and Surgery, University of California, San Francisco, California 94143, USA. vmaster@urol.ucsf.edu

RESUMEN / SUMMARY:  - PURPOSE: Optimal management and clinical outcome of bladder cancer in renal transplant recipients are not well-defined. We analyzed single institution treatment strategies and outcomes of these patients. MATERIALS AND METHODS: We retrospectively reviewed the University of California, San Francisco transplant database which contains information on 6,288 renal transplants performed between 1964 and 2002. The United Network for Organ Sharing database and Israel Penn International Transplant Tumor Registry were also queried to characterize the global nature of bladder cancer in renal transplant recipients. RESULTS: The United Network for Organ Sharing database (1986 to 2001) contained information on 31 patients who were found to have bladder cancer (0.024% prevalence) and the Israel Penn International Transplant Tumor Registry (1967 to 2001) contained information on 135 patients representing 0.84% of all reported malignancies. We identified 7 renal transplant recipients with bladder cancer at our institution. Invasive transitional cell carcinoma developed in 5 patients at a median of 2.8 years after transplant. Three patients underwent uncomplicated radical cystectomy and preservation of the renal allograft. Overall survival at 48 months was 60%. CONCLUSIONS: Bladder cancer after renal transplantation is not common. For patients who present with invasive disease, traditional extirpative surgery should be considered. Moreover, the allograft is rarely the source of transitional cell carcinoma and can be preserved. In our experience the cancer and urinary outcomes compare favorably with nontransplant patient outcomes after treatment.  N. Ref:: 21

 

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[6]

TÍTULO / TITLE:  - Routes to allograft survival.

REVISTA / JOURNAL:  - J Clin Invest. Acceso gratuito al texto completo.

      ●● Enlace a la Editora de la Revista http://www.jci.org/ 

      ●● Cita: J Clinical Investigation: <> 2001 Apr;107(7):797-8.

AUTORES / AUTHORS:  - Bromberg JS; Murphy B

INSTITUCIÓN / INSTITUTION:  - Recanati/Miller Transplant Institute, Mount Sinai School of Medicine, New York, New York 10029, USA. jon.bromberg@mountsinai.org  N. Ref:: 21

 

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[7]

TÍTULO / TITLE:  - The CHORUS (Cerivastatin in Heart Outcomes in Renal Disease: Understanding Survival) protocol: a double-blind, placebo-controlled trial in patients with esrd.

REVISTA / JOURNAL:  - Am J Kidney Dis 2001 Jan;37(1 Suppl 2):S48-53.

AUTORES / AUTHORS:  - Keane WF; Brenner BM; Mazzu A; Agro A

INSTITUCIÓN / INSTITUTION:  - Department of Medicine, Hennepin County Medical Center, University of Minnesota Medical School, Minneapolis, MN, USA. g.macgregor@sghms.ac.uk

RESUMEN / SUMMARY:  - The 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor (statin)-mediated lowering of serum cholesterol has been associated with a significant reduction in cardiovascular morbidity and mortality. Recent studies suggest that additional non-lipid lowering effects (eg, endothelial stabilization, anti-inflammatory, antithrombogenic) may be important in modulating their effectiveness. Dyslipidemia is common in end-stage renal disease (ESRD), and hemodialysis patients have increased cardiovascular morbidity and mortality. Cerivastatin, a new statin with powerful low-density lipoprotein-cholesterol (LDL-C) lowering capabilities, possesses some unique non-LDL-C-mediated properties that may contribute to a reduction of coronary events in the patient with ESRD. The primary objective of this multicenter multinational study of 1,054 hemodialysis patients is to compare 2 years of treatment with cerivastatin (0.4 mg/d) versus placebo on the composite clinical event rate of myocardial infarction, sudden cardiac death, ischemic stroke, and the need for coronary arterial bypass graft (CABG) or percutaneous transluminal coronary angioplasty (PTCA) procedures in these patients. Changes in lipids, inflammatory proteins including heat stable C-reactive protein (hsCRP), interleukin-6 (IL-6), oncostatin-M, intracellular adhesion molecule-1 (ICAM-1) and monocyte-chemoattractant protein-1 (MCP-1), as well as markers of cardiac muscle pathology, such as troponin I and troponin T, will be assessed in a subset of patients. This study is the first of its kind to assess the effect of a statin on the reduction of cardiovascular morbidity and mortality in an incident hemodialysis population. It will determine whether treatment with cerivastatin can effectively reduce the significant cardiovascular morbidity and mortality.

 

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[8]

TÍTULO / TITLE:  - Protocol core needle biopsy and histologic Chronic Allograft Damage Index (CADI) as surrogate end point for long-term graft survival in multicenter studies.

REVISTA / JOURNAL:  - J Am Soc Nephrol. Acceso gratuito al texto completo a partir de 1 año de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://www.jasn.org/ 

      ●● Cita: Journal of the American Society of Nephrology: <> 2003 Mar;14(3):773-9.

AUTORES / AUTHORS:  - Yilmaz S; Tomlanovich S; Mathew T; Taskinen E; Paavonen T; Navarro M; Ramos E; Hooftman L; Hayry P

INSTITUCIÓN / INSTITUTION:  - Data Analysis Center, Division of Transplantation, Department of Surgery, University of Calgary, Alberta, Canada.

RESUMEN / SUMMARY:  - This study is an investigation of whether a protocol biopsy may be used as surrogate to late graft survival in multicenter renal transplantation trials. During two mycophenolate mofetil trials, 621 representative protocol biopsies were obtained at baseline, 1 yr, and 3 yr. The samples were coded and evaluated blindly by two pathologists, and Chronic Allograft Damage Index (CADI) score was constructed. At 1 yr, only 20% of patients had elevated (>l.5 mg/100 ml) serum creatinine, whereas 60% of the biopsies demonstrated an elevated (>2.0) CADI score. The mean CADI score at baseline, 1.3 +/- 1.1, increased to 3.3 +/- 1.8 at 1 yr and to 4.1 +/- 2.2 at 3 yr. The patients at 1 yr were divided into three groups, those with CADI <2, between 2 and 3.9, and >4.0, the first two groups having normal (1.4 +/- 0.3 and 1.5 +/- 0.6 mg/dl) and the third group pathologic (1.9 +/- 0.8 mg/dl) serum creatinine. At 3 yr, there were no lost grafts in the low CADI group, six lost grafts (4.6%) in the in the elevated CADI group, and 17 lost grafts (16.7%) in the high CADI group (P < 0.001). One-year histologic CADI score predicts graft survival even when the graft function is still normal. This observation makes it possible to use CADI as a surrogate end point in prevention trials and to identify the patients at risk for intervention trials.

 

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[9]

TÍTULO / TITLE:  - Incidence of ESRD and survival after renal replacement therapy in patients with type 1 diabetes: a report from the Allegheny County Registry.

REVISTA / JOURNAL:  - Am J Kidney Dis 2003 Jul;42(1):117-24.

AUTORES / AUTHORS:  - Nishimura R; Dorman JS; Bosnyak Z; Tajima N; Becker DJ; Orchard TJ

INSTITUCIÓN / INSTITUTION:  - Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA. rimei@excite.co.jp

RESUMEN / SUMMARY:  - BACKGROUND: Little information is available regarding the long-term incidence of end-stage renal disease (ESRD) and survival after the introduction of renal replacement therapy (RRT) in patients with type 1 diabetes. METHODS: We studied 1,075 patients with type 1 diabetes (onset age < 18 years) diagnosed between 1965 and 1979, who comprise the Allegheny County population-based registry. Onset of ESRD was defined as the introduction of RRT (dialysis or transplantation). RESULTS: Of 1,075 registrants, the living status of 975 patients (90.7%) and complication status of 798 patients (74.2%) were ascertained as of January 1, 1999. During the observation period, 104 patients (13.0%) developed ESRD, for an incidence rate of 521/100,000 person-years (95% confidence interval, 424 to 629). The cumulative incidence of ESRD was 11.3% at 25 years of diabetes. A significant decline was observed in 20-year cumulative incidence rates of ESRD for patients diagnosed between 1965 and 1969, 1970 and 1974, and 1975 and 1979 (9.1%, 4.7%, and 3.6%, respectively; P = 0.006). Of 104 patients with ESRD, 29 patients (28%) received dialysis alone, 44 patients (42%) received dialysis followed by kidney transplantation, 26 patients (25%) underwent successful transplantation alone, and 5 patients (5%) underwent a failed kidney transplantation followed by dialysis therapy. The cumulative survival rate 10 years after the introduction of RRT was 51.2%. The cumulative survival rate of dialysis therapy followed by kidney transplantation was significantly greater than that of dialysis therapy alone (P < 0.001). No difference was detected in survival between pancreas-kidney transplant recipients and kidney-alone transplant recipients (P = 0.7). CONCLUSION: The incidence of ESRD observed in this cohort has declined, probably reflecting the better glycemic and blood pressure control available since the early 1980s.  N. Ref:: 35

 

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[10]

TÍTULO / TITLE:  - European best practice guidelines for renal transplantation. Section IV: Long-term management of the transplant recipient. IV.13 Analysis of patient and graft survival.

REVISTA / JOURNAL:  - Nephrol Dial Transplant. Acceso gratuito al texto completo a partir de los 2 años de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://ndt.oupjournals.org/ 

      ●● Cita: Nephrology Dialysis Transplantation: <> 2002;17 Suppl 4:60-7.

RESUMEN / SUMMARY:  - GUIDELINES: A. It is important for a transplant unit to follow-up on the results of their transplant activities. In order to achieve correct reports on graft and patient outcome in all patients, it is necessary to have sufficient resources, such as a computerized database, and continuous updates of patient information. All data collected should be subjected to validation procedures to ensure completeness and accuracy. B. Improved outcomes following implementation of new protocols, based on evaluation of clinical multi-centre trials, should be verified at local transplant centres since centres often include a range of patients different from those selected for the trial. C. The most widely accepted descriptor of outcome is the Kaplan-Meier probability estimate of patient and graft survival. Survival estimates should be calculated at intervals of time after transplantation and should always be expressed with their 95% confidence intervals. D. Kaplan-Meier survival estimates may be calculated in three ways. (i) ‘Patient survival’ should be calculated from the date of transplantation to the date of death or the date of the last follow-up. (ii) ‘Graft survival’ (non-censored for death) should be calculated from the date of transplantation to the date of irreversible graft failure signified by return to long-term dialysis (or retransplantation) or the date of the last follow-up during the period when the transplant was still functioning or to the date of death. Here, death with graft function is treated as graft failure. (iii) ‘Graft survival censored for death with a functioning graft’ (death-censored graft survival) should be calculated from the date of transplantation to the date of irreversible graft failure signified by return to long-term dialysis (or retransplantation) or the date of last follow-up during the period when the transplant was still functioning. In the event of death with a functioning graft, the follow-up period is censored at the date of death. E. The outcome of transplants carried out at a centre should be compared with those achieved across a range of data from centres collated by national and international multi-centre registries. Interpretation of a centre’s performance should take into account the number of transplants performed and the prevalence of major risk factors. F. Major risk factors that influence transplant outcome are identifiable by applying multivariate analytical methods to large multi-centre follow-up databases. Although these major risk factors may not be identifiable in individual centre data, they should nonetheless be taken into account in patient management. G. When designing a clinical trial or evaluating data from a recent trial, the expected improvement in graft survival resulting from a reduction in acute rejection may be estimated from a knowledge of the rejection and graft survival rates that existed prior to the introduction of the new therapeutic regimen. H. When designing or evaluating a clinical trial, it is important to analyse the power of the study to verify statistically the difference (in graft survival) that might be expected and its statistical significance. A study resulting in absence of statistically significant differences between two treatment groups with insufficient statistical power to verify a difference at the expected level should not be taken as evidence of absence of a true difference.

 

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[11]

TÍTULO / TITLE:  - Renal function as a predictor of long-term graft survival in renal transplant patients.

REVISTA / JOURNAL:  - Nephrol Dial Transplant. Acceso gratuito al texto completo a partir de los 2 años de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://ndt.oupjournals.org/ 

      ●● Cita: Nephrology Dialysis Transplantation: <> 2003 May;18 Suppl 1:i3-6.

AUTORES / AUTHORS:  - First MR

INSTITUCIÓN / INSTITUTION:  - Research and Development, Fujisawa Healthcare, Inc., Deerfield, IL 60015, USA. roy_first@fujisawa.com

RESUMEN / SUMMARY:  - Acute rejection is a major risk factor for kidney graft failure. However, as acute rejection has been progressively reduced by recent immunosuppressive regimens, other risk factors are becoming increasingly important. Evidence is accumulating that early renal function predicts long-term outcome. A recent registry survey of more than 100 000 kidney transplants found that 6- and 12-month serum creatinine levels, as well as the change between 6 and 12 months, are strongly associated with long-term graft survival. A survey of paediatric renal transplant recipients showed that poor creatinine clearance (<50 ml/min) as early as 30 days post-transplant predicted an annual rate of graft loss of 13% compared with <3% in patients with 30-day clearance >50 ml/min. This association between early renal function and long-term outcome was confirmed in multicentre studies. Renal transplant recipients (n=572) with 6-month serum creatinine levels >1.5 mg/dl suffered 3-year graft loss of 19.3% compared with only 8.5% in patients with levels <1.6 mg/dl (P<0.001). Significantly fewer patients receiving tacrolimus had 12-month serum creatinine levels >1.5 mg/dl compared with cyclosporin (42 versus 54%, P<0.05). Interestingly, a single-centre study (n=436) found that while glomerular filtration rate (GFR) at 6 months post-transplant had remained stable over the last decade, the rate of loss of renal function had decreased. A lower rate of GFR loss was associated with absence of rejection, use of mycophenolate mofetil rather than azathioprine and use of tacrolimus rather than cyclosporin (P<0.01). In conclusion, early measures of renal function allow identification of those patients at highest risk of graft failure and provide an invaluable tool for improving outcomes by tailored immunosuppression. The choice of such immunosuppression should be guided not only by its ability to prevent rejection, but also by its impact on renal function.  N. Ref:: 11

 

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[12]

TÍTULO / TITLE:  - European best practice guidelines for renal transplantation. Section IV: Long-term management of the transplant recipient. IV.1. Organization of follow-up of transplant patients after the first year.

REVISTA / JOURNAL:  - Nephrol Dial Transplant. Acceso gratuito al texto completo a partir de los 2 años de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://ndt.oupjournals.org/ 

      ●● Cita: Nephrology Dialysis Transplantation: <> 2002;17 Suppl 4:3-4.

RESUMEN / SUMMARY:  - GUIDELINES: A. All renal transplant recipients should undergo regular laboratory check-ups (at least every 2 or 3 months) and regular medical visits as out-patients (at least every 4-6 months) after the first year post-transplant. B. All renal transplant recipients should be seen at least once a year in the transplant centre where the transplantation has been performed or referred to a closer transplant centre for a complete annual evaluation.

 

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[13]

TÍTULO / TITLE:  - Ambulatory blood pressure measurement in kidney transplantation: an overview.

REVISTA / JOURNAL:  - Transplantation 2003 Dec 15;76(11):1643-4.

      ●● Enlace al texto completo (gratuito o de pago) 1097/01.TP.0000091289.03300.1A

AUTORES / AUTHORS:  - Tomson CR

INSTITUCIÓN / INSTITUTION:  - Department of Renal Medicine, Southmead Hospital, Bristol, UK. charlie.tomson@north-bristol.swest.nhs.uk

RESUMEN / SUMMARY:  - Adequate control of hypertension is among the most important aims of medical management of the kidney transplant recipient, with the aim of reducing the risk of premature cardiovascular disease and preserving graft function. Antihypertensive therapy should be adjusted according to the best available estimates of usual resting blood pressure. If clinic measurements are used, care should be taken to ensure that these measurements are taken under optimal conditions. Home blood pressure monitoring is a useful adjunct in many patients. Ambulatory blood pressure monitoring gives valuable additional data; mean ambulatory blood pressure correlates better with markers of target organ damage such as left ventricular hypertrophy. However, current treatment thresholds and targets are based on clinic measurements. Ambulatory blood pressure monitoring is certainly a useful adjunct to clinic and home blood pressure measurement, but its role in routine clinical practice in the transplant clinic remains to be defined.  N. Ref:: 11

 

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[14]

TÍTULO / TITLE:  - A benefit-risk assessment of basiliximab in renal transplantation.

REVISTA / JOURNAL:  - Drug Saf. Acceso gratuito al texto completo.

      ●● Enlace a la Editora de la Revista http://www.csmwm.org/ 

      ●● Cita: Drug Safety: <> 2004;27(2):91-106.

AUTORES / AUTHORS:  - Boggi U; Danesi R; Vistoli F; Del Chiaro M; Signori S; Marchetti P; Del Tacca M; Mosca F

INSTITUCIÓN / INSTITUTION:  - Division of General Surgery and Transplants, Department of Oncology, Transplants and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy. uboggi@med.unipi.it

RESUMEN / SUMMARY:  - Interleukin-2 (IL-2) and its receptor (IL-2R) play a central role in T lymphocyte activation and immune response after transplantation. Research on the biology of IL-2R allowed the identification of key signal transduction pathways involved in the generation of proliferative and antiapoptotic signals in T cells. The alpha-chain of the IL-2R is a specific peptide against which monoclonal antibodies have been raised, with the aim of blunting the immune response by means of inhibiting proliferation and inducing apoptosis in primed lymphocytes. Indeed, basiliximab, one of such antibodies, has proved to be effective in reducing the episodes of acute rejection after kidney and pancreas transplantation. The use of basiliximab was associated with a significant reduction in the incidence of any treated rejection episodes after kidney transplantation in the two major randomised studies (placebo 52.2% vs basiliximab 34.2% at 6 months, European study; placebo 54.9% vs basiliximab 37.6% at 1 year, US trial). Basiliximab and equine antithymocyte globulin (ATG) administration resulted in a similar rate of biopsy-proven acute rejection at 6 months (19% for both) and at 12 months (19% and 20%, respectively). The use of basiliximab appears not to be associated with an increased incidence of adverse events as compared with placebo in immunosuppressive regimens, including calcineurin inhibitors, mycophenolate mofetil or azathioprine and corticosteroids, and its safety profile is superior to ATG. Moreover, a similar occurrence of infections is noted in selected studies (65.5% after basiliximab vs 65.7% of controls), including cytomegalovirus infection (17.3% vs 14.5%), and cytokine-release syndrome is not observed. Finally, economic analysis demonstrated lower costs of overall treatment in patients treated with basiliximab. Therefore, the use of basiliximab entails a very low risk, allows safe reduction of corticosteroid dosage and reduces the short- and mid-term rejection rates. However, the improvement in the long-term survival of kidney grafts in patients treated according to modern immunosuppressive protocols is still to be demonstrated. These conclusions are based on a systematic review of the scientific literature, indexed on Medline database, concerning the mechanism of action, therapeutic activity, safety and pharmacoeconomic evaluation of basiliximab in renal transplantation.  N. Ref:: 62

 

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[15]

TÍTULO / TITLE:  - Graft function and other risk factors as predictors of cardiovascular disease outcome.

REVISTA / JOURNAL:  - Transplantation 2001 Sep 27;72(6 Suppl):S16-9.

AUTORES / AUTHORS:  - Forsythe JL

INSTITUCIÓN / INSTITUTION:  - Transplant Unit, The Royal Infirmary of Edinburgh, UK. john.forsythe@luht.scot.nhs.uk

RESUMEN / SUMMARY:  - The high incidence of cardiovascular disease after renal transplantation is related to a high prevalence and accumulation of risk factors before and after transplantation. Hypertension, posttransplantation diabetes, and hyperlipidemia are well-recognized risk factors for the development of cardiovascular events after renal transplantation and are strongly associated with immunosuppressive therapy. Hyperhomocysteinemia is a potential risk factor for cardiovascular disease in renal transplant recipients, but although a growing matter of study, a direct association with immunosuppressive agents is not yet proven. In addition to treatment intervention, risk management should also involve tailoring the immunosuppressive regimen to minimize the more indirect cardiovascular risk factors such as renal dysfunction and acute rejection.  N. Ref:: 41

 

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[16]

- Castellano -

TÍTULO / TITLE:Analisis estadistico de la incidencia de canceres “de novo” en pacientes trasplantados renales: una nueva metodologia de estudio. Statistic analysis of “de novo” cancer incidence in renal transplant patients: a new study methodology.

REVISTA / JOURNAL:  - Nefrologia. Acceso gratuito al texto completo.

      ●● Enlace a la Editora de la Revista http://www.aulamedica.es/nefrologia/ 

      ●● Cita: Nefrologia: <> 2003 Sep-Oct;23(5):395-8.

AUTORES / AUTHORS:  - Virto J; Orbe J; Lampreabe I; Zarraga S; Urbizu JM; Gainza FJ

INSTITUCIÓN / INSTITUTION:  - Departamento de Econometria y Estadistica de la Facultad de Ciencias Economicas y Empresariales, Servicio de Nefrologia, Unidad docente, Hospital de Cruces, Baracaldo.  N. Ref:: 16

 

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[17]

TÍTULO / TITLE:  - Early prognosis of the development of renal chronic allograft rejection by gene expression profiling of human protocol biopsies.

REVISTA / JOURNAL:  - Transplantation 2003 Apr 27;75(8):1323-30.

      ●● Enlace al texto completo (gratuito o de pago) 1097/01.TP.0000068481.98801.10

AUTORES / AUTHORS:  - Scherer A; Krause A; Walker JR; Korn A; Niese D; Raulf F

INSTITUCIÓN / INSTITUTION:  - Novartis Institutes for BioMedical Research/Transplantation, Novartis Pharma AG, Basel, Switzerland.

RESUMEN / SUMMARY:  - BACKGROUND: Chronic allograft rejection (CR) is the major cause of failure of long-term graft survival and is so far irreversible. Early prognosis of CR by molecular markers before overt histologic manifestation would be a valuable aid for the optimization of treatment regimens and the design of clinical CR trials. Oligonucleotide microarray-based approaches have proven to be useful for the diagnosis and prognosis of a variety of diseases and were chosen for the unbiased identification of prognostic biomarkers. METHODS: Renal allograft biopsies were taken at month 6 posttransplantation (PT) from two groups who were, at that time, healthy recipients: one group developed CR at month-12 PT, the other group remained healthy. Gene expression profiles from the two groups at month-6 PT biopsies were analyzed to identify differentially expressed genes with prognostic value for CR development at month 12. RESULTS: A set of 10 genes was identified that showed differential expression profiles between the two patient groups and had a complete separation of the 15% to 85% quantile range for each individual gene. This set of genes was sufficient to allow the correct prediction of the occurrence or nonoccurrence of CR in 15 of 17 (88%) patients using cross-validation (occurrence for a patient was predicted on the basis of the other patients’ data only). In addition, a correct prediction could be made that a recipient with a normal biopsy 12 months PT developed CR within the following 6 months. CONCLUSIONS: Identified expression patterns seem to be highly prognostic of the development of renal CR.

 

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[18]

TÍTULO / TITLE:  - Pharmacokinetic, pharmacodynamic, and outcome investigations as the basis for mycophenolic acid therapeutic drug monitoring in renal and heart transplant patients.

REVISTA / JOURNAL:  - Clin Biochem 2001 Feb;34(1):17-22.

AUTORES / AUTHORS:  - Shaw LM; Korecka M; DeNofrio D; Brayman KL

INSTITUCIÓN / INSTITUTION:  - Departments of Pathology & Laboratory Medicine and Surgery, University of Pennsylvania Medical Center, Philadelphia, PA, USA. shawlmj@mail.med.upenn.edu

RESUMEN / SUMMARY:  - Mycophenolate mofetil is widely used in combination with either cyclosporine or tacrolimus for rejection prophylaxis in renal and heart transplant patients. Although not monitored routinely nearly to the degree that other agents such as cyclosporine or tacrolimus, there is an expanding body of experimental evidence for the utility of monitoring mycophenolic acid, the primary active metabolite of mycophenolate mofetil, plasma concentration as an index of risk for the development of acute rejection. The following are important experimentally-based reasons for recommending the incorporation of target therapeutic concentration monitoring of mycophenolic acid: (1) the MPA dose-interval area-under-the-concentration-time curve, and less precisely, MPA predose concentrations predict the risk for development of acute rejection; (2) the strong correlation between mycophenolic acid plasma concentrations and expression of important cell surface activation antigens, whole blood pharmacodynamic assays of lymphocyte proliferation and median graft rejection scores in a heart transplant animal model; (3) the greater than 10-fold interindividual variation of MPA area under the concentration time curve values in heart and renal transplant patients receiving a fixed dose of the parent drug; (4) drug-drug interactions involving other immunosuppressives are such that when switching from one to another (eg, from cyclosporine to tacrolimus or vice-versa) substantial changes in MPA concentrations can occur in patients receiving a fixed dose of the parent drug; (5) significant effects of liver and kidney diseases on the steady-state total and free mycophenolic acid area under the concentration time curve values; (6) the need to closely monitor mycophenolic acid when a major change in immunosuppression is planned such as steroid withdrawal. Current investigations are focused on determination of the most optimal sampling time and for mycophenolic acid target therapeutic concentration monitoring. Further investigations are needed to evaluate the pharmacologic activity of the newly described acyl glucuronide metabolite of mycophenolic acid which has been shown to inhibit, in vitro, inosine monophosphate dehydrogenase.  N. Ref:: 37

 

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[19]

TÍTULO / TITLE:  - Current status of renal transplantation. Patient evaluations and outcomes.

REVISTA / JOURNAL:  - Urol Clin North Am 2001 Nov;28(4):677-86.

AUTORES / AUTHORS:  - Barry JM

INSTITUCIÓN / INSTITUTION:  - Division of Urology and Renal Transplantation, Department of Surgery, Oregon Health Sciences University, Portland, Oregon, USA.

RESUMEN / SUMMARY:  - A systematic team approach to the assessment of renal transplant candidates is one of several factors that have resulted in improved kidney transplant and recipient survival rates, rates that were only imagined 4 decades ago.  N. Ref:: 47

 

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[20]

TÍTULO / TITLE:  - Effects of catecholamine application to brain-dead donors on graft survival in solid organ transplantation.

REVISTA / JOURNAL:  - Transplantation 2001 Aug 15;72(3):455-63.

AUTORES / AUTHORS:  - Schnuelle P; Berger S; de Boer J; Persijn G; van der Woude FJ

INSTITUCIÓN / INSTITUTION:  - University Hospital Mannheim, Theodor Kutzer Ufer 1-3, 68167 Mannheim, Germany. schnuell@rumms.uni-mannheim.de

RESUMEN / SUMMARY:  - BACKGROUND: In a recent single-center study, donor use of catecholamines was identified to reduce kidney allograft rejection. This study investigates the effects of donor employment of adrenergic agents on graft survival in a large data base, including liver and heart transplants. METHODS: The study was based on the registry of the Eurotransplant International Foundation including 2415 kidney, 755 liver, and 720 heart transplants performed between January 1 and December 31, 1993. A total of 1742 donor record forms referring to the cadaveric donor activities in 1993 were systematically reviewed with regard to employment of adrenergic agents. Catecholamine use was simply coded dichotomously and divided into three strata according to zero, single, and combined application. Multivariate Cox regression including age, gender, cause of brain death, cold ischemia, HLA-mismatching, number of previous transplants, and urgency in liver transplants was applied for statistical analysis. RESULTS: Donor employment of catecholamines was associated with increased 4-year graft survival after kidney transplantation (hazard ratio [HR], 0.85; 95% confidence interval [95% CI], 0.74-0.98). The benefit is conferred in a dose-dependent manner and compares in quantitative terms with prospective HLA matching on class I and class II antigens (HR, 0.90; 95% CI, 0.84-0.97). Use of norepinephrine was predictive of initial nonfunction after heart transplantation (HR, 1.66; 95% CI, 1.14-2.43), but did not compromise liver grafts (HR, 0.94; 95% CI, 0.67-1.32). CONCLUSIONS: Optimizing the management of brain-dead organ donors, including the possibility of selective administration of adrenergic agents, may provide a major benefit on graft survival without adverse side effects for the recipients. Further investigation on best use of adrenergic drugs, optimum dosage, and duration is warranted.

 

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[21]

TÍTULO / TITLE:  - Are peritoneal dialysis patients with and without residual renal function equivalent for survival study? Insight from a retrospective review of the cause of death.

REVISTA / JOURNAL:  - Nephrol Dial Transplant. Acceso gratuito al texto completo a partir de los 2 años de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://ndt.oupjournals.org/ 

      ●● Cita: Nephrology Dialysis Transplantation: <> 2003 May;18(5):977-82.

AUTORES / AUTHORS:  - Szeto CC; Wong TY; Chow KM; Leung CB; Li PK

INSTITUCIÓN / INSTITUTION:  - Department of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China. ccszeto@cuhk.edu.hk

RESUMEN / SUMMARY:  - BACKGROUND: It remains unknown whether results of survival studies in anuric patients can be extrapolated to those who still have significant urine output. It is possible that after a prolonged period on dialysis, anuric patients are qualitatively different from patients with residual renal function. METHODS: We performed a retrospective review to study the cause of death of 296 peritoneal dialysis patients of our centre over a 7 year period, and compared the mortality and distribution of cause of death between patients with and without residual renal function. RESULTS: One hundred and forty-two cases (48.0%) died of vascular diseases, 82 cases (27.7%) died of infections and 72 cases (24.3%) died of other causes. Anuric patients had a higher overall mortality rate than non-anuric patients (14.9 vs 9.9%, P=0.0005), and the difference was almost completely attributed to the difference in mortality from vascular diseases (8.0 vs 4.1%, P<0.0001). Vascular disease was a more common cause of death in anuric patients than those with residual renal function (55.3 vs 40.8%, P=0.011). The difference was largely explained by the higher prevalence of sudden cardiac death in anuric patients (39 in 149 vs 19 in 147 cases). Patients without pre-existing cardiovascular disease more commonly died of vascular disease after they became anuric (47.4 vs 34.0%, P=0.017). The difference could not be explained by the longer duration of dialysis in anuric patients because there was no significant change in the distribution of cause of death with time on dialysis (chi-square test, P=0.341). CONCLUSIONS: Our observation suggests that peritoneal dialysis patients with and without residual renal function are qualitatively different. Studies on peritoneal dialysis adequacy and survival in anuric patients should only be extrapolated to the general dialysis population with caution.

 

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[22]

TÍTULO / TITLE:  - Kidney transplantation from living-unrelated donors: comparison of outcome with living-related and cadaveric transplants under current immunosuppressive protocols.

REVISTA / JOURNAL:  - Urology 2003 Dec;62(6):1002-6.

AUTORES / AUTHORS:  - Chkhotua AB; Klein T; Shabtai E; Yussim A; Bar-Nathan N; Shaharabani E; Lustig S; Mor E

INSTITUCIÓN / INSTITUTION:  - National Centre of Urology, Tbilisi, Georgia.

RESUMEN / SUMMARY:  - OBJECTIVES: Living-unrelated donors may become an additional organ source for patients on the kidney waiting list. We studied the impact of a combination of calcineurin inhibitors and mycophenolate-mofetil together with steroids on the outcomes of living-related (LRD), unrelated (LUR), and cadaver transplantation. METHODS: Between September 1997 and January 2000, 129 patients underwent LRD (n = 80) or LUR (n = 49) kidney transplantation, and another 173 patients received a cadaveric kidney. Immunosuppressive protocols consisted of mycophenolate-mofetil with cyclosporine-Neoral (41%) or tacrolimus (59%) plus steroids. We compared the patient and graft survival data, rejection rate, and graft functional parameters. RESULTS: LRD recipients were younger (33.6 years) than LUR (47.8 years) and cadaver (43.7 years) donor recipients (P <0.001). HLA matching was higher in LRD patients (P <0.001). Acute rejection developed in 28.6% of LUR versus 27.5% of LRD transplants and 29.7% of cadaver kidney recipients (P = not significant). The creatinine level at 1, 2, and 3 years after transplant was 1.63, 1.73, and 1.70 mg% for LRD patients; 1.48, 1.48, and 1.32 mg% for LUR patients; and 1.75, 1.68, and 1.67 mg% for cadaver kidney recipients (P = not significant), respectively. No difference in patient survival rates was found among the groups. The 1, 2, and 3-year graft survival rates were significantly better in recipients of LRD (91.3%, 90.0%, and 87.5%, respectively) and LUR transplants (89.8%, 87.8%, and 87.8%, respectively) than in cadaver kidney recipients (81.5%, 78.6%, 76.3%, respectively; P <0.01). CONCLUSIONS: Despite HLA disparity, the rejection and survival rates of LUR transplants under current immunosuppressive protocols are comparable to those of LRD and better than those of cadaveric transplants.

 

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[23]

TÍTULO / TITLE:  - Ambulatory blood pressure after renal transplantation.

REVISTA / JOURNAL:  - Nephrol Dial Transplant. Acceso gratuito al texto completo a partir de los 2 años de la fecha de publicación.

      ●● Enlace a la Editora de la Revista http://ndt.oupjournals.org/ 

      ●● Cita: Nephrology Dialysis Transplantation: <> 2001;16 Suppl 1:110-3.

AUTORES / AUTHORS:  - Fernandez-Vega F; Tejada F; Baltar J; Laures A; Gomez E; Alvarez J

INSTITUCIÓN / INSTITUTION:  - Servicio de Nefrologia 1, Hospital Central de Asturias, C/Celestino Villamil s/n, 33006 Oviedo, España.

RESUMEN / SUMMARY:  - Renal transplantation has been a usual medical practice in developed countries for several decades. A large number of studies report the excellent results obtained with such a practice. The survival of the graft, although able to be improved, is excellent and gives a great deal of hope to patients with renal insufficiency. The high level of investigation into immunosuppressor drugs offers, almost continuously, more efficient and better tolerated products. Paradoxically, the usual problems of patients with a renal transplant are not immunological but cardiovascular. Elevated serum cholesterol levels, obesity, diabetes and other cardiovascular risk factors (CVRFs) are usual in these patients, arterial hypertension (AHT) being the most frequent. Nephrologists are increasingly using ambulatory blood pressure monitoring (ABPM) on a daily basis. In the last 10 years, we have obtained highly valuable and interesting results with this technique which have allowed us to study and understand with greater precision the relationship of AHT to the kidney. Here we analyse and review the most relevant aspects of ABPM in the different stages of kidney disease, with special emphasis on renal transplantation.  N. Ref:: 40

 

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[24]

TÍTULO / TITLE:  - Preparing the patient for renal replacement therapy. Teamwork optimizes outcomes.

REVISTA / JOURNAL:  - Postgrad Med. Acceso gratuito al texto completo.

      ●● Enlace a la Editora de la Revista http://www.postgradmed.com/journal.htm 

      ●● Cita: Postgraduate Medicine: <> 2002 Jun;111(6):97-8, 101-4, 107-8.

AUTORES / AUTHORS:  - Bolton WK; Owen WF Jr

INSTITUCIÓN / INSTITUTION:  - Division of Nephrology, University of Virginia School of Medicine, PO Box 800133, Charlottesville, VA 22908, USA. wkb5s@virginia.edu

RESUMEN / SUMMARY:  - Proper preparation of a patient with CKD for the development of ESRD and the need for RRT is essential to optimize the patient’s quality and quantity of life and to help ensure positive economic and societal outcomes. A collaborative team approach involving the primary care physician team, the patient and his or her family and friends, and the nephrology team should result in improved care of the CKD patient and improved outcomes. It is not possible, feasible, or practical to attempt to provide the inclusive care necessary to attain these goals in a system that does not take advantage of the strengths of a team approach. Adopting this concept of care for patients with kidney disease results in a win-win situation for all of the participants—the patients, the physicians, and society.  N. Ref:: 17

 

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[25]

TÍTULO / TITLE:  - Loss of living donor renal allograft survival advantage in children with focal segmental glomerulosclerosis.

REVISTA / JOURNAL:  - Kidney Int 2001 Jan;59(1):328-33.

AUTORES / AUTHORS:  - Baum MA; Stablein DM; Panzarino VM; Tejani A; Harmon WE; Alexander SR

INSTITUCIÓN / INSTITUTION:  - Division of Nephrology, Children’s Hospital, Harvard Medical School, Boston, Massachusetts, USA.

RESUMEN / SUMMARY:  - BACKGROUND: Because of concerns of increased risk of graft loss with recurrent disease, living donor (LD) transplantation in children with focal segmental glomerulosclerosis (FSGS) has been controversial. METHODS: The North American Pediatric Renal Transplant Cooperative Study (NAPRTCS) database from January 1987 to January 2000 was examined to determine differences in demographics, treatment, and outcomes in children with FSGS compared with other renal diseases. RESULTS: Data on 6484 children, 752 (11.6%) with FSGS, demonstrated that FSGS patients were more likely to be older and black, and were less likely to receive either pre-emptive or LD transplant (P < 0.001). No differences existed in human lymphocyte antigen (HLA) matching or immunosuppression regimens. Acute tubular necrosis occurred in more FSGS patients following LD (11.8 vs. 4.6%) or cadaveric (CD; 27.9 vs. 16.3%) transplants (P < 0.001). Graf