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Kidney Allograft Failure

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https://www.readbyqxmd.com/read/28221244/hla-amino-acid-polymorphisms-and-kidney-allograft-survival
#1
Malek Kamoun, Keith P McCullough, Martin Maiers, Marcelo A Fernandez Vina, Hongzhe Li, Valerie Teal, Alan B Leichtman, Robert M Merion
BACKGROUND: The association of HLA mismatching with kidney allograft survival has been well established. We examined whether amino acid mismatches at the antigen recognition site of HLA molecules represent independent and incremental risk factors for kidney graft failure (GF) beyond those mismatches assessed at the antigenic (2-digit) specificity. METHODS: Data on 240,024 kidney transplants performed between 1987 and 2009 were obtained from the Scientific Registry of Transplant Recipients...
February 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28216112/laparoscopic-sleeve-gastrectomy-gateway-to-kidney-transplantation
#2
Katrin Kienzl-Wagner, Annemarie Weissenbacher, Philipp Gehwolf, Heinz Wykypiel, Dietmar Öfner, Stefan Schneeberger
BACKGROUND: The prevalence of obesity and obesity-related morbidity in end-stage renal disease patients is rising. Although it is established that obesity does not abrogate the transplant benefit with respect to lower long-term mortality and cardiovascular risk, it is associated with increased graft failure, delayed graft function, surgical complications, prolonged hospital stay, and costs. OBJECTIVES: To examine the safety and efficacy of LSG (laparoscopic sleeve gastrectomy) in renal transplant candidates and evaluate transplant outcomes...
January 6, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28214296/abnormally-high-and-heterogeneous-bone-matrix-mineralization-after-childhood-solid-organ-transplantation-a-complex-pathology-of-low-bone-turnover-and-local-defects-in-mineralization
#3
Nadja Fratzl-Zelman, Helena Valta, Renata C Pereira, Barbara M Misof, Paul Roschger, Hannu Jalanko, Kathrine Wesseling-Perry, Klaus Klaushofer, Outi Mäkitie
Chronic renal, liver and heart failure in children associates with multiple skeletal complications. Increased fracture incidence often persists after transplantation and could be related to alterations in bone material properties. In the present cohort study we evaluated bone mineralization density distribution (BMDD) by quantitative backscattered electron imaging (qBEI) in 23 pediatric solid organ allograft recipients with suspected osteoporosis. We measured BMDD in the entire cross-sectional area of transiliac bone biopsies obtained from kidney (n = 9), liver (n = 9) and heart (n = 5) transplant recipients (aged 7...
February 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28206695/graft-quality-matters-survival-after-simultaneous-liver-kidney-transplant-according-to-kdpi
#4
Colleen Jay, Jacqueline Pugh, Glenn Halff, Greg Abrahamian, Francisco Cigarroa, Ken Washburn
BACKGROUND: Poor renal function is associated with higher mortality after liver transplantation. Our aim was to understand the impact of kidney graft quality according to kidney donor profile index (KDPI) score on survival after simultaneous liver-kidney (SLK) transplantation. METHODS: Using United Network of Organ Sharing data from 2002-2013 for adult deceased donor SLK recipients, we compared survival and renal graft outcomes according to KDPI. RESULTS: Of 4,207 SLK transplants, 6% were from KDPI >85% donors...
February 16, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28191531/urine-biomarkers-in-renal-allograft
#5
Hongting Wang, Zuan-Tao Lin, Yulin Yuan, Tianfu Wu
There is a high risk for the survival of patients with an end-stage renal disease for kidney transplantation. To avoid rejection by strict medication adherence is of utmost importance to avoid the failure of a kidney transplant. It is imperative to develop non-invasive biomarkers to assess immunity risk, and to ultimately provide guidance for therapeutic decision-making following kidney transplantation. Urine biomarkers may represent the promising non-invasive tools that will help in predicting risk or success rates of kidney transplantations...
September 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28135784/morphologic-patterns-and-treatment-of-transplant-glomerulopathy-a-retrospective-analysis
#6
Rui Abreu, Fernanda Carvalho, Helena Viana, Isabel Mesquita, Marília Possante, Inês Aires, Fernando Caeiro, Cecília Silva, Patrícia Cotovio, Aníbal Ferreira, Francisco Remédio, Fernando Nolasco
Transplant glomerulopathy is mainly due to chronic antibody-mediated rejection and actually represents a major cause of long-term allograft failure. The lack of effective treatment remains a serious problem in transplantation. A retrospective and uni-center study was performed in 48 kidney allograft recipients with transplant glomerulopathy between January 2010 and December 2015. Median time for diagnosis was 7.1 (3.6-11.8) years post-transplant. Light microscopy showed severity of transplant glomerulopathy in the majority of patients (cg1=10...
January 30, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28135042/cancer-related-outcomes-in-kidney-allograft-recipients-in-england-versus-new-york-state-a-comparative-population-cohort-analysis-between-2003-and-2013
#7
Francesca Jackson-Spence, Holly Gillott, Sanna Tahir, Jay Nath, Jemma Mytton, Felicity Evison, Adnan Sharif
It is unclear whether cancer-related epidemiology after kidney transplantation is translatable between countries. In this population-cohort study, we compared cancer incidence and all-cause mortality after extracting data for every kidney-alone transplant procedure performed in England and New York State (NYS) between 2003 and 2013. Data were analyzed for 18,493 and 11,602 adult recipients from England and NYS respectively, with median follow up 6.3 years and 5.5 years respectively (up to December 2014). English patients were more likely to have previous cancer at time of transplantation compared to NYS patients (5...
January 30, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28133619/from-humoral-theory-to-performant-risk-stratification-in-kidney-transplantation
#8
REVIEW
C Lefaucheur, D Viglietti, M Mangiola, A Loupy, A Zeevi
The purpose of the present review is to describe how we improve the model for risk stratification of transplant outcomes in kidney transplantation by incorporating the novel insights of donor-specific anti-HLA antibody (DSA) characteristics. The detection of anti-HLA DSA is widely used for the assessment of pre- and posttransplant risks of rejection and allograft loss; however, not all anti-HLA DSA carry the same risk for transplant outcomes. These antibodies have been shown to cause a wide spectrum of effects on allografts, ranging from the absence of injury to indolent or full-blown acute antibody-mediated rejection...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28130881/transplantation-of-hepatocytes-from-genetically-engineered-pigs-into-baboons
#9
Hayato Iwase, Hong Liu, Eva Schmelzer, Mohamed Ezzelarab, Martin Wijkstrom, Hidetaka Hara, Whayoung Lee, Jagjit Singh, Cassandra Long, Eric Lagasse, Jörg C Gerlach, David K C Cooper, Bruno Gridelli
BACKGROUND: Some patients with acute or acute-on-chronic hepatic failure die before a suitable human liver allograft becomes available. Encouraging results have been achieved in such patients by the transplantation of human hepatocyte progenitor cells from fetal liver tissue. The aim of the study was to explore survival of hepatocytes from genetically engineered pigs after direct injection into the spleen and other selected sites in immunosuppressed baboons to monitor the immune response and the metabolic function and survival of the transplanted hepatocytes...
January 28, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28128720/surgical-complications-after-pediatric-renal-transplant
#10
Hakan Sözen, Kibriya Fidan, Onur Özen, Oğuz Söylemezoğlu, Aydın Dalgıç
OBJECTIVES: Renal transplant is the most appropriate treatment for both adult and pediatric patients with end-stage renal failure. Here, we analyzed surgical complications after pediatric renal transplant at our center. MATERIALS AND METHODS: We retrospectively analyzed data from patient files and hospital charts of pediatric patients who had renal transplant at our center (Gazi University, Ankara, Turkey). Our immunosuppression protocol, a calcineurin inhibitor-based triple regimen, was applied to all recipients (steroids, mycophenolic acid)...
January 27, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28124458/hepatic-ischemia-reperfusion-injury-associates-with-acute-kidney-injury-in-liver-transplantation-prospective-cohort-study
#11
Ina Jochmans, Nicolas Meurisse, Arne Neirynck, Marleen Verhaegen, Diethard Monbaliu, Jacques Pirenne
: Solid clinical prospective studies investigating the association between hepatic ischemia reperfusion injury and acute kidney injury after liver transplantation are missing. Hepatic ischemia reperfusion injury -reflected by transaminase release- induces acute kidney injury in rodents and retrospective studies suggest a similar association in man. This prospective cohort study determined risk factors for acute kidney injury in 80 adult liver-only recipients. Acute kidney injury -defined by RIFLE-criteria- developed in 21 (26%) recipients at 12 hours postreperfusion [inter quartile range: 6 hours-postoperative day 1]; 13 progressed from "Risk" to "Injury"; 5 to "Failure"...
January 25, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28110327/mortality-after-renal-allograft-failure-and-return-to-dialysis
#12
Amarpali Brar, Mariana Markell, Dimitre G Stefanov, Edem Timpo, Rahul M Jindal, Robert Nee, Nabil Sumrani, Devon John, Fasika Tedla, Moro O Salifu
INTRODUCTION: The outcomes of patients who fail their kidney transplant and return to dialysis (RTD) has not been investigated in a nationally representative sample. We hypothesized that variations in management of transplant chronic kidney disease stage 5 leading to kidney allograft failure (KAF) and RTD, such as access, nutrition, timing of dialysis, and anemia management predict long-term survival. METHODS: We used an incident cohort of patients from the United States Renal Data System who initiated hemodialysis between January 1, 2003 and December 31, 2008, after KAF...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28104157/clinical-courses-of-graft-failure-caused-by-chronic-allograft-dysfunction-in-kidney-transplantation
#13
T Fujiwara, S Teruta, S Tsudaka, K Ota, H Matsuda
BACKGROUND: Chronic allograft dysfunction (CAD) is a main cause of graft failure in kidney transplantation. METHODS: We retrospectively analyzed 279 kidney transplant recipients who survived with a functioning graft for at least 2 years. CAD was defined as chronic graft deterioration, excluding other specific causes. We defined the pattern of decline in estimated glomerular filtration rate (eGFR), as follows: (1) "plateau" was defined as decline in eGFR ≤2 mL/min/1...
January 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28099402/transplant-center-volume-and-the-risk-of-pancreas-allograft-failure
#14
Tarek Alhamad, Andrew F Malone, Daniel C Brennan, Robert J Stratta, Su-Hsin Chang, Jason R Wellen, Timothy A Horwedel, Krista L Lentine
BACKGROUND: Successful pancreas transplantation requires surgical expertise and multidisciplinary medical management. The impact of transplant center volume on pancreas allograft survival remains unclear. METHODS: We examined Organ Procurement and Transplantation Network (OPTN) data on 11,568 simultaneous pancreas-kidney (SPK) and 4308 solitary pancreas (pancreas transplant alone and pancreas after kidney) transplants between 2000 and 2013. RESULTS: Average annual transplant center volume was categorized by tertiles into low, medium and high volume, respectively, as follows: 1-6 (n=3,861), 7-13 (n=3,891), and 14-34 (n=3,888) for SPK, and 1-3 (n=1,417), 4-10 (n=1,518), and 11-33 (n=1,377) for solitary pancreas transplants...
January 17, 2017: Transplantation
https://www.readbyqxmd.com/read/28076340/telomere-length-assessment-for-prediction-of-organ-transplantation-outcome-future-or-failure-a-review-of-the-literature
#15
Karolina Kłoda, Leszek Domański, Artur Mierzecki
Telomeres are located at each end of eukaryotic chromosomes. Their functional role is genomic stability maintenance. The protective role of telomeres depends on various factors, including number of nucleotides repeats, telomere-binding proteins, and telomerase activity. Organ transplantation is the preferred replacement therapy in the case of chronic kidney disease and the only possibility of sustaining recipients' life in the case of advanced liver failure. While the prevalence of acute rejection is constantly decreasing, prevention of transplanted organ long-term function loss is still challenging...
January 11, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28065453/protective-effects-of-l-carnitine-against-delayed-graft-function-in-kidney-transplant-recipients-a-pilot-randomized-double-blinded-placebo-controlled-clinical-trial
#16
Atefeh Jafari, Mohammad-Reza Khatami, Simin Dashti-Khavidaki, Mahboob Lessan-Pezeshki, Alireza Abdollahi, Azadeh Moghaddas
OBJECTIVE: Delayed graft function (DGF) is an early complication after deceased donor kidney transplantation with significant adverse effects on graft outcomes. Ischemia-reperfusion injury during transplantation is a major cause of DGF. Tissue concentrations of carnitine, an antioxidant and regulator of cellular energy supply, decrease in the kidney following ischemia-reperfusion insult. Based on promising animal data, this study evaluated the possible protective effect of L-carnitine against DGF...
March 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28060446/successful-treatment-of-donor-derived-hepatitis-c-viral-infection-in-three-transplant-recipients-from-a-donor-at-increased-risk-for-bloodborne-pathogens
#17
Ashesh P Shah, Andrew Cameron, Pooja Singh, Adam M Frank, Jonathan M Fenkel
We report here the successful treatment of hepatitis C virus (HCV) transmitted from a nucleic acid testing (NAT)-negative donor to three HCV-negative recipients-two renal transplants and one liver. Both renal recipients underwent standard deceased-donor renal transplantation with immediate graft function. The liver recipient underwent standard orthotopic liver transplantation and recovered uneventfully. The donor was a 39-year-old woman with a terminal serum creatinine of 0.7 mg/dL. She was high risk for bloodborne pathogens, based upon a history of sexual contact with an HCV-infected male partner...
January 6, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28058218/-contrast-nephropathy-in-renal-transplantation-is-it-real
#18
REVIEW
Fedaey Mohammed Abbas, Bridson M Julie, Ajay Sharma, Ahmed Halawa
The risk of contrast-induced nephropathy (CIN) in renal transplant recipients is increased in diabetics, patients with impaired basal kidney function, patients in shock, patients presenting with acute emergency and in old age recipients. Approximately one-third of all hospitalized patients with acute kidney injury is attributed to CIN. In the United States, it is the third leading cause of hospital-acquired renal failure. Therefore, efforts should be directed to minimize CIN-related morbidity and mortality as well as to shorten hospital stay...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28056461/predicting-post-transplant-recurrence-of-iga-nephropathy-the-importance-of-crescents
#19
Rupali S Avasare, Paul E Rosenstiel, Ziad S Zaky, Demetra S Tsapepas, Gerald B Appel, Glen S Markowitz, Andrew S Bomback, Pietro A Canetta
BACKGROUND: Most studies that have assessed the predictors of recurrent IgA nephropathy (IgAN) in the renal allograft have focused on post-transplant features. Identifying high-risk pre-transplant features of IgAN is useful for counseling patients and may help in tailoring post-transplant immunosuppression. METHODS: We investigated the pre-transplant clinical and biopsy features of 62 patients with IgAN who received transplants at Columbia University Medical Center from 2001 to 2012 and compared the characteristics and outcomes of patients with IgAN recurrence to those without recurrence...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28039098/efficacy-and-tolerability-of-interferon-free-antiviral-therapy-in-kidney-transplant-recipients-with-chronic-hepatitis-c
#20
Inmaculada Fernández, Raquel Muñoz-Gómez, Juan M Pascasio, Carme Baliellas, Natalia Polanco, Nuria Esforzado, Ana Arias, Martín Prieto, Lluis Castells, Valentín Cuervas-Mons, Olga Hernández, Javier Crespo, José L Calleja, Xavier Forns, María-Carlota Londoño
BACKGROUND & AIMS: The development of direct-acting antiviral agents (DAAs) is a major step forward in the treatment of hepatitis C (HCV). The aims of the study were to evaluate the efficacy and tolerability of DAAs in kidney transplant (KT) recipients. METHODS: Hepa-C is a Spanish registry of patients treated with DAAs in which clinical, virological and analytical data were prospectively included. We report on the data from 103 KT recipients who received DAAs. RESULTS: The most commonly used DAAs combinations were sofosbuvir/ledipasvir (n=59, 57%) and sofosbuvir+daclatasvir (n=18, 17%)...
December 28, 2016: Journal of Hepatology
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