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Immunology, pediatric renal transplant

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https://www.readbyqxmd.com/read/27805505/challenges-for-renal-retransplant-an-overview
#1
Mohamed Adel Bakr, Ahmed Abdelfattah Denewar, Mohamed Hamed Abbas
Despite many achievements in renal transplant in the past few years regarding immunosuppression and tissue matching, the rates of early and late graft loss and return to dialysis are still high. Many of those with primary graft failure will be listed for a kidney retransplant, as this allows for better quality of life than dialysis. Many challenges face those requiring renal retransplant, including first graft nephrectomy and whether site of retransplant should be ipsilateral or contralateral, whether to conduct preemptive retransplant or wait while on dialysis, additional immunologic factors, immunosuppression after retransplant, cancer risk, BK virus infection, and retransplant in pediatrics...
November 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27597398/optimizing-outcomes-in-pediatric-renal-transplantation-through-the-australian-paired-kidney-exchange-program
#2
M P Sypek, S I Alexander, L Cantwell, F L Ierino, P Ferrari, A M Walker, J Y Kausman
Kidney paired donation (KPD) programs offer the opportunity to enable living kidney donation when immunological and other barriers prevent safe directed donation. Children are likely to require multiple transplants during their lifetime; therefore, high-level histocompatibility and organ quality matching are key priorities. Details are given for a cohort of seven pediatric renal transplantations performed through the Australian Kidney Exchange (AKX), including barriers to alternative transplantation and outcomes after KPD...
September 6, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27184648/lymphocyte-depleting-induction-and-steroid-minimization-after-kidney-transplantation-a-review
#3
Maarten Naesens, Stefan Berger, Luigi Biancone, Marta Crespo, Arjang Djamali, Alexandre Hertig, Robert Öllinger, José Portolés, Andreas Zuckermann, Julio Pascual
Steroid minimization after kidney transplantation has become more widely practiced as transplant clinicians seek the potential benefits such as reduced cardiovascular risk factors, improved growth in pediatric patients, and improved compliance with the immunosuppression regimen. Steroid avoidance (i.e. no steroids after the first week) is generally favored compared to later withdrawal. Induction therapy is routine in this setting, frequently rabbit antithymocyte globulin (rATG, Thymoglobulin®) or off-license use of alemtuzumab...
May 14, 2016: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/27105881/combined-liver-and-kidney-transplantation-in-children-analysis-of-renal-graft-outcome
#4
Randula Ranawaka, Carla Lloyd, Pat J McKiernan, Sally A Hulton, Khalid Sharif, David V Milford
BACKGROUND: Combined liver-kidney transplantation (CLKT) is the accepted treatment for patients with both liver failure and progressive renal insufficiency. Long-term outcome data for CLKT in children is sparse and controversy exists as to whether simultaneous CLKT with organs from the same donor confers immunologic and survival benefit to the kidney allograft. We report the long-term renal graft outcomes of 40 patients who had simultaneous CLKT. METHODS: A retrospective analysis of kidney graft survival (time from transplantation to death, return to dialysis or last follow-up event) in all pediatric patients (age < 18 years old) who underwent CLKT from March 1994 to January 2015...
September 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27092138/transplant-tolerance-induction-in-newborn-infants-mechanisms-advantages-and-potential-strategies
#5
REVIEW
Hua Pan, Aram Gazarian, Jean-Michel Dubernard, Alexandre Belot, Marie-Cécile Michallet, Mauricette Michallet
Although several tolerance induction protocols have been successfully implemented in adult renal transplantation, no tolerance induction approach has, as yet, been defined for solid organ transplantations in young infants. Pediatric transplant recipients have a pressing demand for the elaboration of tolerance induction regimens. Indeed, since they display a longer survival time, they are exposed to a higher level of risks linked to long-term immunosuppression (IS) and to chronic rejection. Interestingly, central tolerance induction may be of great interest in newborns, because of their immunological immaturity and the important role of the thymus at this early stage in life...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/25334310/immunological-warfare-two-cases-of-hemophagocytic-lymphohistiocytosis-in-young-adults
#6
Ryan Sugarman, Yonatan Greenstein, Seth Koenig
Critical Care Student/Resident Case Report Posters IISESSION TYPE: Medical Student/Resident Case ReportPRESENTED ON: Tuesday, October 28, 2014 at 01:30 PM - 02:30 PMINTRODUCTION: Hemophagocytic lymphohistiocystosis (HLH), a syndrome of pathologic immune system activation, results in a severe systemic inflammatory response. Rare in adults, it is well-described in the pediatric population. If unrecognized it is uniformly fatal; with prompt treatment mortality remains high. We present two cases of Epstein-Barr virus (EBV) associated HLH in young adults admitted to the medical intensive care unit (MICU)...
October 1, 2014: Chest
https://www.readbyqxmd.com/read/24711434/kidney-involvement-in-autoimmune-polyendocrinopathy-candidiasis-ectodermal-dystrophy-in-a-finnish-cohort
#7
Nicolas Kluger, Janne Kataja, Heikki Aho, Ann-Mari Rönn, Kai Krohn, Annamari Ranki
BACKGROUND: Autoimmune tubulo-interstitial nephritis (TIN) is a rare complication of autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED). Previous data on TIN and other renal or urologic manifestations of APECED are sparse. METHODS: We performed a retrospective study on the urinary and renal tract diseases in a cohort of 30 Finnish patients with APECED (mean age 40 years), with special emphasis on the clinical presentation and the immunologic characteristics of TIN...
September 2014: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/24510376/patients-with-primary-immunodeficiencies-in-pediatric-intensive-care-unit-outcomes-and-mortality-related-risk-factors
#8
Cağlar Odek, Tanil Kendirli, Figen Doğu, Ayhan Yaman, Göksel Vatansever, Funda Cipe, Sule Haskoloğlu, Can Ateş, Erdal Ince, Aydan Ikincioğullari
PURPOSES: The aims of this study were to review the frequency, characteristics, and the clinical course of primary immunodeficiency (PID) patients admitted to pediatric intensive care unit (PICU) and attempt to identify factors related with mortality that might predict a poor outcome. METHODS: We performed a retrospective review of children with PID aged 1 month to 18 years and admitted to PICU from January 2002 to January 2012 in our tertiary teaching children's hospital...
April 2014: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/24341571/early-protocol-biopsies-in-pediatric-renal-transplantation-interest-for-the-adaptation-of-immunosuppression
#9
Alexandra Bruel, Emma Allain-Launay, Julie Humbert, Amélie Ryckewaert, Gérard Champion, Anne Moreau, Karine Renaudin, Georges Karam, Gwenaelle Roussey-Kesler
GPB are often performed in PRT to detect subclinical acute rejection or IF/TA. Reducing immunosuppression side effects without increasing rejection is a major concern in PRT. We report the results of GPB in children transplanted with a steroid-sparing protocol adapted to immunological risk. Children under 18 yr who received a renal transplantation between April 1, 2009 and May 31, 2012 were included. Immunosuppression consisted of an antibody induction therapy, tacrolimus, and MMF for all recipients. CSs were administered to children under five yr old, or receiving a second allograft...
March 2014: Pediatric Transplantation
https://www.readbyqxmd.com/read/24164824/alemtuzumab-induction-with-tacrolimus-monotherapy-in-25-pediatric-renal-transplant-recipients
#10
Jennifer Sung, John M Barry, Randy Jenkins, David Rozansky, Sandra Iragorri, Michael Conlin, Amira Al-Uzri
ALA induction in transplantation has been shown to reduce the need for maintenance immunosuppression. We report the outcome of 25 pediatric renal transplants between 2007 and 2010 using ALA induction followed by tacrolimus maintenance monotherapy. Patient ages were 1-19 yr (mean 14 ± 4.1 yr). Time of follow-up was 7-51 months (mean 26 ± 13 months). Tacrolimus monotherapy was maintained in 48% of patients, and glucocorticoids were avoided in 80% of recipients. Mean plasma creatinine and GFR at one yr post-transplant were 0...
December 2013: Pediatric Transplantation
https://www.readbyqxmd.com/read/23968332/multicenter-validation-of-urinary-cxcl9-as-a-risk-stratifying-biomarker-for-kidney-transplant-injury
#11
MULTICENTER STUDY
D E Hricik, P Nickerson, R N Formica, E D Poggio, D Rush, K A Newell, J Goebel, I W Gibson, R L Fairchild, M Riggs, K Spain, D Ikle, N D Bridges, P S Heeger
Noninvasive biomarkers are needed to assess immune risk and ultimately guide therapeutic decision-making following kidney transplantation. A requisite step toward these goals is validation of markers that diagnose and/or predict relevant transplant endpoints. The Clinical Trials in Organ Transplantation-01 protocol is a multicenter observational study of biomarkers in 280 adult and pediatric first kidney transplant recipients. We compared and validated urinary mRNAs and proteins as biomarkers to diagnose biopsy-proven acute rejection (AR) and stratify patients into groups based on risk for developing AR or progressive renal dysfunction...
October 2013: American Journal of Transplantation
https://www.readbyqxmd.com/read/23622585/clinical-everolimus-experience-in-pediatric-renal-transplant-patients
#12
N Dincel, I K Bulut, T Ö Sezer, S Mir, C Hoşcoşkun
OBJECTIVE: Everolimus is a potent immunosuppressive agent that has antiproliferative activities. This study sought to share our experience among renal transplanted children who required conversion from calcineurin inhibitors (CNIs) to the mammalian target of rapamycin inhibitor everolimus. PATIENTS AND METHODS: Exclusion criteria were multiple organ transplantations, loss of a previous graft due to immunologic reasons, receipt of an organ donated after cardiac death, donor age <5 years or >65 years, panel reactive antibodies >25%, platelets <75,000/mm(3), absolute neutrophil count of <1,500/mm(3), leucocytes <2,500/mm(3), hemoglobin <6 g/dL, severe liver disease, cold ischemia time >40 hours or anti-HLA panel-reactive antibodies >50%...
April 2013: Transplantation Proceedings
https://www.readbyqxmd.com/read/23288351/steroid-withdrawal-in-renal-transplantation
#13
REVIEW
Ryszard Grenda
Over the last decade, steroid minimization became one of the major goals in pediatric renal transplantation. Different protocols have been used by individual centers and multicenter study groups, including early and late steroid withdrawal or even complete avoidance. The timing of steroid withdrawal determines if antibodies are used, as avoidance and early withdrawal require antibody induction, while late withdrawal typically does not. A monoclonal antibody was used in most protocols during an early steroid withdrawal together with tacrolimus and mycophenolate mofetil in low immunological risk patients...
November 2013: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/23279372/soluble-cd30-and-elisa-detected-human-leukocyte-antigen-antibodies-for-the-prediction-of-acute-rejection-in-pediatric-renal-transplant-recipients
#14
RANDOMIZED CONTROLLED TRIAL
Heiko Billing, Anja Sander, Caner Süsal, Jörg Ovens, Reinhard Feneberg, Britta Höcker, Karel Vondrak, Ryszard Grenda, Stybjorn Friman, David V Milford, Mihai Lucan, Gerhard Opelz, Burkhard Tönshoff
Biomarker-based post-transplant immune monitoring for the prediction of impending graft rejection requires validation in specific patient populations. Serum of 28 pediatric renal transplant recipients within the framework of a well-controlled prospective randomized trial was analyzed pre- and post-transplant for soluble CD30 (sCD30), a biomarker reflecting mainly T-cell reactivity, and anti-human leukocyte antigen (anti-HLA) antibody reactivity, a biomarker for B-cell activation. A sCD30 concentration ≥40...
March 2013: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/23198257/pediatric-renal-transplantation-in-a-highly-sensitised-child-8-years-on
#15
Catherine Quinlan, Atif Awan, Denis Gill, Mary Waldron, Dilly Little, David Hickey, Peter Conlon, Mary Keogan
Highly sensitised children have markedly reduced chances of receiving a successful deceased donor renal transplant, increased risk of rejection, and decreased graft survival. There is limited experience with the long-term followup of children who have undergone desensitization. Following 2 failed transplants, our patient was highly sensitised. She had some immunological response to intravenous immunoglobulin (IVIg) but this was not sustained. We developed a protocol involving sequential therapies with rituximab, IVIg, and plasma exchange...
2011: Case Reports in Transplantation
https://www.readbyqxmd.com/read/22890040/everolimus-in-pediatric-transplantation
#16
REVIEW
Lars Pape, Rainer Ganschow, Thurid Ahlenstiel
PURPOSE OF REVIEW: The use of everolimus has recently emerged for solid-organ transplantation in children. This review gives an overview of the relevant studies and clinical trials involving the immunosuppressive effects of everolimus in child organ transplant. RECENT FINDINGS: The use of everolimus in pediatric organ transplantation is associated with a decrease in calcineurin inhibitor-related toxicity, better renal function, a low number of acute rejections, and an acceptable side-effect profile...
October 2012: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/22755409/kidney-transplantation-at-tokyo-women-s-medical-university
#17
Masashi Inui, Hideki Ishida, Kazuya Omoto, Tatsu Tanabe, Motoshi Hattori, Hajime Hirano, Kazunari Tanabe
The first case of kidney transplantation at our institution was carried out in 1971, and this first renal transplant recipient is still living with a functioning kidney. From 1971 through the end of 2011, more than 3000 cases of kidney transplantation have been carried out at our institution. Since 1983, cyclosporine-based immunosuppression has been employed at our center. During this period, most of the patients were treated with cyclosporine- or tacrolimus-based immunosuppression. The latest outcomes of kidney transplantation seem to have significantly improved compared to earlier periods...
2011: Clinical Transplants
https://www.readbyqxmd.com/read/22210419/the-impact-of-donor-specific-antibodies-on-graft-outcome-in-pediatric-renal-transplantation-from-deceased-donors
#18
Barbara Piątosa, Aneta Kwiatkowska, Jacek Rubik, Wioletta Jarmużek, Przemysław Kluge, Ryszard Grenda
BACKGROUND: Despite prospective crossmatching and modern immunosuppression, early acute rejection is still present in cadaveric renal transplantation. The purpose of this study was to evaluate the incidence of preformed anti-donor antibodies, detected by 2 solid-phase techniques, and to analyze their impact on early renal allograft outcome. MATERIAL/METHODS: Flow crossmatch detecting the presence of anti-donor IgG and IgM antibodies was performed in pre-transplant sera of 279 patients with negative cytotoxic crossmatch...
October 2011: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/22192813/health-status-of-children-alive-10-years-after-pediatric-liver-transplantation-performed-in-the-us-and-canada-report-of-the-studies-of-pediatric-liver-transplantation-experience
#19
MULTICENTER STUDY
Vicky L Ng, Estella M Alonso, John C Bucuvalas, Geoff Cohen, Christine A Limbers, James W Varni, George Mazariegos, John Magee, Susan V McDiarmid, Ravinder Anand
OBJECTIVES: To determine clinical and health-related quality of life outcomes, and to derive an "ideal" composite profile of children alive 10 years after pediatric liver transplantation (LT) performed in the US and Canada. STUDY DESIGN: This was a multicenter cross-sectional analysis characterizing patients enrolled in the Studies of Pediatric Liver Transplantation database registry who have survived >10 years from LT. RESULTS: A total of 167 10-year survivors were identified, all of whom received daily immunosuppression therapy...
May 2012: Journal of Pediatrics
https://www.readbyqxmd.com/read/22172885/case-report-successful-treatment-of-recurrent-focal-segmental-glomerulosclerosis-with-a-novel-rituximab-regimen
#20
Z A Stewart, R Shetty, R Nair, A I Reed, P D Brophy
Focal segmental glomerulosclerosis (FSGS) is the cause of renal failure in more than 10% of pediatric patients undergoing renal transplantation. Recurrent FSGS is a major cause of pediatric allograft failure, with the risk increasing for patients undergoing retransplantation. Standard therapy for recurrent posttransplantation FSGS includes the use of intensive plasmapheresis (PP) in conjunction with cyclophosphamide or high-dose cyclosporine. However, many patients exhibit refractory disease, with rapid progression to allograft loss despite these interventions...
December 2011: Transplantation Proceedings
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