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Acute renal graft rejection

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https://www.readbyqxmd.com/read/28726586/application-of-ureterorenoscope-and-flexible-ureterorenoscope-lithotripsy-in-removing-calculus-from-extracorporeal-living-donor-renal-graft-a-single-center-experience
#1
Chun-Hua Lin, Zuo-Fu Zhang, Jiahui Wang, Lu-Xin Yu, Wen-Ting Wang, Lei Shi, Xiang-Nan Lin
Here, we reported our clinical application of ureterorenoscope (URS) and flexible URS lithotripsy in stone removal on 10 cases of excised living donor kidney graft. After the extraction of donor kidney by retroperitoneal laparoscopy, the donor graft was perfused with 4 °C HCA solution. Calculus between 2-4 mm were removed intact with lithotomy forceps under direct vision of URS. Larger calculi of >4 mm were fractured with flexible URS combining holmium laser lithotripsy. Fragments of the calculus were extracted with basket extractor and lithotomy forceps...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28714558/everolimus-and-reduced-calcineurin-inhibitor-therapy-in-pediatric-liver-transplant-recipients-results-from-a-multicenter-prospective-study
#2
Rainer Ganschow, Bo-Goran Ericzon, Anil Dhawan, Khalid Sharif, El-Djouher Martzloff, Barbara Rauer, Jennifer Ng, Patricia Lopez
In a 24-month, multicenter, single-arm, prospective study, 56 pediatric liver transplant patients with or without basiliximab induction were converted at 1-6 months post-transplant from standard calcineurin inhibitor (CN) therapy (± mycophenolic acid), to everolimus with reduced exposure to CNI (tacrolimus n=50, cyclosporine n=6). Steroid therapy was optional. Recruitment was stopped prematurely due to high rates of PTLD, treatment-related serious infections leading to hospitalization and premature study drug discontinuation...
July 17, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28714235/tuberculosis-after-kidney-transplantation-is-associated-with-significantly-impaired-allograft-function
#3
Silvana Daher Costa, Tainá Veras de Sandes-Freitas, Camilla Neves Jacinto, Lorena Vasconcelos Mesquita Martiniano, Yago Sucupira Amaral, Fernando José Villar Nogueira Paes, Maria Luiza de Mattos Brito Oliveira Sales, Ronaldo de Matos Esmeraldo, Elizabeth de Francesco Daher
BACKGROUND: This study aimed to evaluate renal function before, during and after the course of tuberculosis (TB) disease in kidney transplant recipients; and assess the risk factors for non-recovery of baseline renal function. METHODS: We performed a retrospective, single-center cohort study, including all patients with confirmed or presumed TB diagnosis after kidney transplant (n=34, 2.1%). Renal function was assessed by serum creatinine (Cr) and glomerular filtration rate (GFR) adjusted for deaths and graft losses...
July 17, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28698834/biomarkers-in-renal-transplantation-an-updated-review
#4
REVIEW
Maurizio Salvadori, Aris Tsalouchos
Genomics, proteomics and molecular biology lead to tremendous advances in all fields of medical sciences. Among these the finding of biomarkers as non invasive indicators of biologic processes represents a useful tool in the field of transplantation. In addition to define the principal characteristics of the biomarkers, this review will examine the biomarker usefulness in the different clinical phases following renal transplantation. Biomarkers of ischemia-reperfusion injury and of delayed graft function are extremely important for an early diagnosis of these complications and for optimizing the treatment...
June 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28697714/association-between-overweight-and-renal-transplant-outcomes-a-meta-analysis
#5
Congran Li, Hailong Jin, Li Xiao, Zhouli Li, Ming Cai, Bingyi Shi
OBJECTIVES: Our study aimed to evaluate the effects of being overweight on kidney transplant. MATERIALS AND METHODS: Our study evaluated kidney transplant recipients with body mass index ranging from 25 to 30 kg/m² versus patients with body mass index ranging from 18.5 to 29.9 kg/m², who were identified through PubMed, Embase, and Cochrane Library searches up to October 2015. Outcomes analyzed included delayed graft function, acute rejection, graft loss, and patient survival...
July 11, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28695576/mechanical-ventilation-and-extracorporeal-membrane-oxygenation-as-a-bridging-strategy-to-lung-transplantation-significant-gains-in-survival
#6
Awori J Hayanga, Angela L Du, Kyla Joubert, Tuft Marie, Rachel Baird, Joseph Pilewski, Mathew Morrell, Jonathan D'Cunha, Norihisa Shigemura
Mechanical ventilation (MV) and extracorporeal membrane oxygenation (ECMO) are increasingly used to bridge patients to lung transplantation. We investigated the impact of using MV, with or without ECMO, prior to lung transplantation on survival after transplantation by performing a retrospective analysis of 826 patients who underwent transplantation at our high-volume center. Recipient characteristics and posttransplant outcomes were analyzed. Most lung transplant recipients (729 patients) did not require bridging; 194 of these patients were propensity matched with patients who were bridged using MV alone (48 patients) or MV and ECMO (49 patients)...
July 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28682561/-immunosuppression-in-kidney-transplantation-a-way-between-efficacy-and-toxicity
#7
Costanza Casati, Alberto Menegotto, Maria Luisa Querques, Federica Ravera, Giacomo Colussi
Renal transplantation is the best treatment for patients with end-stage renal disease. Over the last decades, the introduction of new immunosuppressive agents resulted into the reduction of the incidence of acute rejection and early graft loss. Despite this progress, there has been little improvement in the average life of the transplant. The main reasons of late failure are patient's death due to several complications (e.g. cancer, infectious or metabolic), and progressive deterioration of renal function caused by immunological and non-immunological factors...
April 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28679466/successful-launch-of-an-abo-incompatible-kidney-transplantation-program-to-overcome-the-shortage-of-compatible-living-donors-experience-at-a-single-center%C3%A2
#8
Seung Hwan Song, Juhan Lee, Beom Seok Kim, Sinyoung Kim, Jae Geun Lee, Hyeon Joo Jeong, Yu Seun Kim, Myoung Soo Kim, Hyun Ok Kim, Soon Il Kim, Kyu Ha Huh
AIMS: ABO-incompatible (ABOi) kidney transplantation (KT) is being increasingly performed to overcome donor shortages. However, debate persists regarding the post-transplant outcomes of ABOi KT vs. that of ABO-compatible (ABOc) KT. METHODS: A total 454 recipients who underwent living-donor KT (LDKT) between June 2010 and July 2014 at Severance Hospital (Seoul) were retrospectively reviewed. 100 ABOi and 354 ABOc KTs were compared. Recipients with a pretransplant positive crossmatch to their donors, pretransplant donor-specific anti-HLA antibody (DSA), or high panel reactive antibody (PRA ≥ 50%) were excluded from both the ABOi and ABOc KT groups...
July 6, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28676335/thymoglobuline-plus-basiliximab-a-mixed-cocktail-to-start
#9
EDITORIAL
Spagnoletti Gionta, Salerno Maria Paola, Calia Rosaria, Romagnoli Jacopo, Citterio Franco
Recent results reported by Ciancio et al. have demonstrated the long term successful use of dual induction therapy in kidney transplant recipients. Our experience using an "induction cocktail", thymoglobuline plus basiliximab, started in 2007 and we have treated 235 patients through the past 10years. In our population, we used a combination of CNIs and MMF or mTORi as maintenance therapy. Our results in term of patient and graft survival, acute rejection rate, renal function and incidence of post-transplant lymphoproliferative disorder support the data reported by Ciancio...
July 1, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28671951/an-adjustable-predictive-score-of-graft-survival-in-kidney-transplant-patients-and-the-levels-of-risk-linked-to-de-novo-donor-specific-anti-hla-antibodies
#10
Aurélie Prémaud, Matthieu Filloux, Philippe Gatault, Antoine Thierry, Matthias Büchler, Eliza Munteanu, Pierre Marquet, Marie Essig, Annick Rousseau
Most predictive models and scores of graft survival in renal transplantation include factors known before transplant or at the end of the first year. They cannot be updated thereafter, even in patients developing donor-specific anti-HLA antibodies and acute rejection.We developed a conditional and adjustable score for prediction of graft failure (AdGFS) up to 10 years post-transplantation in 664 kidney transplant patients. AdGFS was externally validated and calibrated in 896 kidney transplant patients.The final model included five baseline factors (pretransplant non donor-specific anti-HLA antibodies, donor age, serum creatinine measured at 1 year, longitudinal serum creatinine clusters during the first year, proteinuria measured at 1 year), and two predictors updated over time (de novo donor-specific anti-HLA antibodies and first acute rejection)...
2017: PloS One
https://www.readbyqxmd.com/read/28658202/pharmacokinetics-and-clinical-outcomes-of-generic-tacrolimus-hexal-versus-branded-tacrolimus-in-de-novo-kidney-transplant-patients-a-multicenter-randomized-trial
#11
Wolfgang Arns, Andrea Huppertz, Thomas Rath, Stephan Ziefle, Lars C Rump, Anita Hansen, Klemens Budde, Lukas J Lehner, Maria Shipkova, Daniel Baeumer, Irena Kroeger, Christian Sieder, Thomas Klein, Peter Schenker
BACKGROUND: Scrupulous comparison of the pharmacokinetic and clinical characteristics of generic tacrolimus formulations versus the reference drug (Prograf) is essential. Pharmacokinetics of the TacHexal formulation are similar to Prograf in stable renal transplant patients but data in de novo patients is lacking. METHODS: De novo kidney transplant patients were randomized to generic tacrolimus (Tacrolimus Hexal [TacHexal]) or Prograf in a 6-month open-label study...
June 28, 2017: Transplantation
https://www.readbyqxmd.com/read/28651015/acute-rejection-after-kidney-transplantation-promotes-graft-fibrosis-with-elevated-adenosine-level-in-rat
#12
Mingliang Li, Yingbo Dai, Jun Lei, Jin Tang, Yihong Zhou, Bing Xia, Yang Xia, Guangming Yin
AIMS: Chronic allograft nephropathy is a worldwide issue with the major feature of progressive allograft fibrosis, eventually ending with graft loss. Adenosine has been demonstrated to play an important role in process of fibrosis. Our study aimed to investigate the relationship between adenosine and fibrosis in renal allograft acute rejection in rat. MATERIALS AND METHODS: Wistar rats and SD rats were selected as experimental animals. Our study designed two groups...
2017: PloS One
https://www.readbyqxmd.com/read/28643491/association-of-foxp3-polymorphism-with-allograft-outcome-in-kidney-transplantation
#13
Hyewon Park, Nuri Lee, Ji Won In, Eun Youn Roh, Kyoung Un Park, Sue Shin, Jaeseok Yang, Eun Young Song
BACKGROUND: Forkhead box P3 (Foxp3) is the most reliable marker for regulatory T cells, which play an important role in maintaining renal allograft tolerance. Recently, Foxp3 polymorphisms have been reported to be associated with graft outcome in kidney transplantation. We analyzed the association of Foxp3 polymorphisms with renal allograft outcome. METHODS: Foxp3 polymorphisms (rs3761548 A/C, rs2280883 C/T, rs5902434 del/ATT, and rs2232365 A/G) were tested by PCR with sequence-specific primers (PCR-SSP) in 231 adult kidney transplantation recipients from 1996-2004 at Seoul National University Hospital...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28638610/looking-for-the-needle-in-the-kidney-transplantation-haystack
#14
Josep M Cruzado, Edoardo Melilli
The diagnosis of acute rejection still relies on renal allograft biopsy. In fact, histological features including C4d staining can be useful to differentiate cellular and antibody-mediated acute rejection. However, the pathogenic mechanism to define the type of rejection is usually assessed by anti-HLA donor specific antibodies (DSA) monitoring. Suspicion of acute rejection is usually based on renal function deterioration. This method has low sensitivity. Moreover, creatinine increase follows graft injury and therefore the diagnosis is performed when there is an ongoing acute rejection...
February 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28631715/-concurrence-of-acute-graft-rejection-and-polyomavirus-nephropathy-a-clinical-case
#15
Yu G Motin, O V Omelchenko, T P Bukiy, N P Bgatova, A Yu Gryzlov
The paper describes a case of diagnosing acute renal graft rejection concurrent with polyomavirus nephropathy. Histochemical and electron microscopic methods were used to examine biopsy specimens, which showed morphological changes occurring in the allograft, the ultrastructural characteristics of polyomavirus and the features of its spread in kidney tissue structures.
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28625949/discussion-on-the-risk-factors-of-developing-cardiovascular-diseases-cvd-after-the-kidney-transplantation
#16
Kai Wang, Qing-Shan Qu, Shu-Zhai Miao, Yanxuan Zhang, Xin Jing
To discuss the risk factors of developing cardiovascular disease (CVD) after the kidney transplantation. Retrospective analysis on the data of 1106 patients who had been underwent kidney allotransplantation in People's Hospital of Zhengzhou from July, 2010 to Dec, 2014 and conformed to the inclusion criteria was taken. Cox proportional hazard model was used to analyze the risk factors of developing CVD after the kidney transplantation. 7 days, 1 month, 3 months, 6 months and 12 months before and after the operation, the data collection and following-up visits were respectively arranged...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28621156/pilot-study-use-of-contrast-enhanced-ultrasonography-in-feline-renal-transplant-recipients
#17
Esther H Greenbarg, David A Jiménez, Lucas A Nell, Chad W Schmiedt
Objectives The study aims were to evaluate the feasibility of contrast-enhanced ultrasonography in feline renal transplant recipients in the post-transplantation period and to report findings in a case with presumptive delayed allograft ischemia. Methods Cats were imaged postoperatively using contrast harmonic ultrasonography after a bolus injection of a microbubble contrast medium. Time/mean pixel intensity curves were generated for cortical and medullary regions of interest in the renal allograft in each cat...
June 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28611987/complement-in-kidney-transplantation
#18
REVIEW
Marek Cernoch, Ondrej Viklicky
The complement system is considered to be an important part of innate immune system with a significant role in inflammation processes. The activation can occur through classical, alternative, or lectin pathway, resulting in the creation of anaphylatoxins C3a and C5a, possessing a vast spectrum of immune functions, and the assembly of terminal complement cascade, capable of direct cell lysis. The activation processes are tightly regulated; inappropriate activation of the complement cascade plays a significant role in many renal diseases including organ transplantation...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28609473/a-delicate-balance-between-rejection-and-bk-polyomavirus-associated-nephropathy-a-retrospective-cohort-study-in-renal-transplant-recipients
#19
Lilli Gard, Willem van Doesum, Hubert G M Niesters, Willem J van Son, Arjan Diepstra, Coen A Stegeman, Henk Groen, Annelies Riezebos-Brilman, Jan Stephan Sanders
BACKGROUND: The immunosuppressive agents mycophenolate acid (MPA) and tacrolimus (Tac) are associated with a higher incidence of BK polyomavirus nephropathy (BKPyVAN). In this observational retrospective cohort study, the frequency of BK polyomavirus (BKPyV) complications over a 24-month period was studied. METHODS: 358 renal transplant recipients (RTR) treated with MPA, with either cyclosporine A (CsA) (CsAM group) or Tac (TacM group) and mostly prednisolone, were included...
2017: PloS One
https://www.readbyqxmd.com/read/28605781/everolimus-with-cyclosporine-withdrawal-or-low-exposure-cyclosporine-in-kidney-transplantation-from-month-3-a-multicentre-randomized-trial
#20
Klemens Budde, Martin Zeier, Oliver Witzke, Wolfgang Arns, Frank Lehner, Markus Guba, Johannes Jacobi, Volker Kliem, Petra Reinke, Ingeborg A Hauser, Bruno Vogt, Rolf Stahl, Thomas Rath, Michael Duerr, Eva-Maria Paulus, Christoph May, Martina Porstner, Claudia Sommerer
Background.: Randomized trials have shown that early adoption of everolimus-based immunosuppressive regimens without a calcineurin inhibitor (CNI) improves long-term kidney graft function, but the optimal strategy for CNI minimization remains uncertain. Methods.: In a prospective, randomized, multicentre, 12-month trial, 499 de novo kidney transplant patients were randomized at Month 3 to (i) remain on standard CNI (cyclosporine) therapy with mycophenolic acid, (ii) convert to everolimus with mycophenolic acid or (iii) start everolimus with reduced CNI and no mycophenolic acid (clinical trials registry: ClinicalTrials...
June 1, 2017: Nephrology, Dialysis, Transplantation
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