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Transplantation

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https://www.readbyqxmd.com/read/29215463/variation-in-practice-patterns-for-listing-patients-for-renal-transplantation-in-the-united-kingdom-a-national-survey
#1
Rishi Pruthi, Sarah Tonkin-Crine, Melania Calestani, Geraldine Leydon, Caroline Eyles, Gabriel C Oniscu, Charles Tomson, Andrew Bradley, John L Forsythe, Clare Bradley, John Cairns, Christopher Dudley, Christopher Watson, Heather Draper, Rachel Johnson, Wendy Metcalfe, Damian Fogarty, Rommel Ravanan, Paul J Roderick
INTRODUCTION: Despite the availability of guidelines for the evaluation of candidates for renal transplantation, variation in access to transplantation exists. This national survey investigates whether centre variation exists in the assessment of patients for renal transplantation in the UK. METHODS: An online survey, informed by qualitative interviews, was distributed to all UK renal centres. This survey examined centre approaches to chronic kidney disease service provision, transplant recipient assessment, education provision and wait-listing decision making processes...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29215462/liver-transplantation-in-cryptogenic-cirrhosis-outcome-comparisons-between-nash-alcoholic-and-aih-cirrhosis
#2
Paul Joseph Thuluvath, Steven Hanish, Yulia Savva
BACKGROUND: The outcomes of liver transplantation (LT) in patients with cryptogenic cirrhosis (CC) have not been adequately examined except for small case series. We believe that patients currently listed as CC have truly cryptogenic liver disease and may have different post-LT outcomes compared to nonalcoholic steatohepatitis (NASH). METHODS: We compared the post-LT outcomes of adults with CC (n=3241) and compared them with cirrhosis from NASH (n=4089), alcohol (AC, n=7837) and autoimmune hepatitis (AIH, n=1435) using the UNOS database from 2002-16...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29215461/influence-of-blood-pressure-and-calcineurin-inhibitors-on-kidney-function-after-heart-or-liver-transplantation
#3
Christian Morath, Gerhard Opelz, Bernd Döhler, Martin Zeier, Caner Süsal
BACKGROUND: Chronic kidney disease is common after heart or liver transplantation, with calcineurin inhibitors (CNI) considered the key contributor. A possible influence of posttransplant blood pressure has not been extensively examined. METHODS: Data from adult recipients of a first heart or liver transplant were analyzed regarding the relationship between blood pressure at year 1, renal function at year 5, and CNI therapy. RESULTS: Whereas we confirmed the well-known detrimental effect of increased 1-year systolic blood pressure on 5-year kidney graft survival, heart or liver graft survival were not affected...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29215460/comparison-of-preemptive-therapy-and-antiviral-prophylaxis-for-prevention-of-cytomegalovirus-in-seropositive-liver-transplant-recipients
#4
Amy W Liu, Kamonwan Jutivorakool, Cynthia E Fisher, Robert M Rakita, Jorge D Reyes, Renuka B Bhattacharya, Keith R Jerome, Ajit P Limaye
BACKGROUND: Few studies have directly compared preemptive therapy (PET) and antiviral prophylaxis (AP) for prevention of cytomegalovirus disease in CMV seropositive (R+) orthotopic liver transplant (OLT) recipients. METHODS: We prospectively assessed CMV disease and clinical outcomes among 160 consecutive R+ OLT recipients who received PET (weekly plasma CMV PCR for 3 months, oral valganciclovir 900 mg twice daily for CMV viremia >250 IU/mL, until 2 consecutive negative weekly PCR results) and compared them to a historical cohort of 156 R+ recipients who received AP (valganciclovir 900 mg daily for 3 months)...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29215459/complete-b-cell-deficiency-reduces-allograft-inflammation-and-intragraft-macrophages-a-rat-kidney-transplant-model
#5
Sarah E Panzer, Nancy A Wilson, Bret M Verhoven, Ding Xiang, C Dustin Rubinstein, Robert R Redfield, Weixiong Zhong, Shannon R Reese
BACKGROUND: Increasingly it is being appreciated that B cells have broad roles beyond the humoral response, and are able to contribute to and regulate inflammation. The specific role of B cells in the pathogenesis of early allograft inflammation remains unclear. METHODS: To address this question, we generated B cell deficient Lewis rats via CRISPR technology. In a full mismatch transplant model, kidneys from Brown Norway donors were transplanted into B cell deficient Lewis recipients (B) or wild type Lewis recipients...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29215458/recurrence-of-renal-cell-cancer-after-renal-transplantation-in-a-multicenter-french-cohort
#6
Noëlle Cognard, Dany Anglicheau, Philippe Gatault, Sophie Girerd, Marie Essig, Bruno Hurault de Ligny, Yann Le Meur, Franck Le Roy, Cyril Garrouste, Antoine Thierry, Charlotte Colosio, Joseph Rivalan, Johnny Sayegh, Gabriel Choukroun, Bruno Moulin, Sophie Caillard
BACKGROUND: Renal cancer accounts for 3% of adult malignancies; renal cell carcinoma (RCC) represents 80% of all renal cancers, and is characterized by late recurrences. Recurrences after kidney transplantation are associated with a high mortality rate. We aimed to determine if recurrences are linked to tumor characteristics and to delays between diagnosis and transplantation. METHODS: We retrospectively analyzed data from French kidney-transplanted patients with medical histories of pre-transplant renal cancer, focusing on the most common histological subtypes: clear cell and papillary cancers...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29210893/uterus-transplantation-a-rapidly-expanding-field
#7
Mats Brännström, Pernilla Dahm Kähler, Robert Greite, Johan Mölne, César Díaz-García, Stefan G Tullius
No abstract text is available yet for this article.
November 28, 2017: Transplantation
https://www.readbyqxmd.com/read/29176392/expanding-the-use-of-organs-from-hepatitis-c-viremic-donors-the-evidence-continues-to-build
#8
Courtenay M Holscher, Christine M Durand, Niraj M Desai
No abstract text is available yet for this article.
November 22, 2017: Transplantation
https://www.readbyqxmd.com/read/29166338/use-of-organs-from-hepatitis-c-virus-positive-donors-for-uninfected-recipients-a-potential-cost-effective-approach-to-save-lives
#9
Patrick B Trotter, Dominic M Summers, Ines Ushiro-Lumb, Matthew Robb, J Andrew Bradley, James Powell, Christopher J E Watson, James Neuberger
BACKGROUND: Organs from hepatitis C virus (HCV) seropositive (HCVpos) individuals are seldom used for transplantation because of the risk of disease transmission. Because transmitted HCV is now amenable to effective treatment we estimated the potential impact of using HCVpos deceased donor organs for transplantation. METHODS: The Potential Donor Audit (PDA) of patients (<80years) dying in UK critical care units and the UK Transplant Registry (UKTR) was searched to identify HCVpos potential and proceeding deceased donors...
November 22, 2017: Transplantation
https://www.readbyqxmd.com/read/29166337/detection-of-hepatitis-c-antibodies-without-viral-transmission-in-hepatitis-c-negative-recipients-receiving-kidneys-from-hepatitis-c-positive-donors-treated-with-direct-acting-anti-viral-therapy
#10
Neeru Agarwal, Rebecca J Davis, David M Gracey, Germaine Wong, Kathy Kable, Jeffrey K W Wong, Brian J Nankivell, Simone Strasser, Kate Wyburn
No abstract text is available yet for this article.
November 22, 2017: Transplantation
https://www.readbyqxmd.com/read/29166336/valganciclovir-prophylaxis-versus-preemptive-therapy-in-cytomegalovirus-positive-renal-allograft-recipients-long-term-results-after-7-years-of-a-randomized-clinical-trial
#11
Oliver Witzke, Martin Nitschke, Michael Bartels, Heiner Wolters, Gunter Wolf, Petra Reinke, Ingeborg A Hauser, Ulrich Alshuth, Volker Kliem
BACKGROUND: The VIPP study compared valganciclovir prophylaxis with preemptive treatment regarding efficacy, safety and long-term graft outcome in CMV-positive (R+) renal transplant recipients. METHODS: Multicenter, open-label, randomized clinical study with a 12-month study phase and a follow-up of up to 84 months. Patients in the prophylaxis group received 2x450 mg/day oral valganciclovir for 100 days adjusted to renal function. Preemptive treatment with 2x900 mg/day valganciclovir was initiated at a viral load of ≥400 CMV copies/mL (PCR) and maintained over ≥14 days, followed by secondary prophylaxis...
November 22, 2017: Transplantation
https://www.readbyqxmd.com/read/29189487/rituximab-and-therapeutic-plasma-exchange-in-recurrent-focal-segmental-glomerulosclerosis-postkidney-transplantation
#12
Sami Alasfar, Dany Matar, Robert A Montgomery, Niraj Desai, Bonnie Lonze, Vikas Vujjini, Michelle M Estrella, John Manllo Dieck, Gebran Khneizer, Sanja Sever, Jochen Reiser, Nada Alachkar
BACKGROUND: Focal segmental glomerulosclerosis (FSGS) is a common cause of end stage renal disease (ESRD) with a high rate of recurrence after kidney transplantation. Several factors such as white race, rapid progression, and previous allograft failure due to recurrence were found to be risks of recurrence. Data are limited on the benefits of rituximab and/or therapeutic plasma exchange (TPE) in preventing recurrence. In this study, we sought to assess the efficacy of rituximab and TPE for the prevention and treatment of recurrent FSGS post kidney transplantation...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189486/association-of-cardiac-abnormalities-to-the-frail-phenotype-in-cirrhotic-patients-on-the-waitlist-from-the-functional-assessment-in-liver-transplantation-frailt-study
#13
Lorena Puchades, Stephanie Chau, John A Dodson, Yara Mohamad, Rachel Mustain, Adrienne Lebsack, Victoria Aguilera, Martin Prieto, Jennifer C Lai
BACKGROUND: Frailty is a syndrome of decreased physiologic reserve that results from compromise of multiple physiologic systems including cardiovascular. We aimed to determine the association between the frail phenotype and cardiac abnormalities in liver transplant (LT) candidates through evaluation of transthoracic echocardiography (TTE) indices. METHODS: Included were consecutive outpatients listed for LT who underwent a frailty assessment from 1/1/14-6/30/16 (using the Liver Frailty Index) and a 2-dimensional/doppler TTE exam...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189485/myeloid-derived-suppressor-cells-and-their-potential-application-in-transplantation
#14
Joseph R Scalea, Young Lee, Eduardo Davila, Jonathan S Bromberg
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immunosuppressive cells of the myeloid lineage upregulated by mediators of inflammation such as IL-2, GCSF, and S100A8/A9. These cells have been studied extensively by tumor biologists. Because of their robust immunosuppressive potential, MDSCs have stirred recent interest among transplant immunologists as well. MDSCs inhibit T cell responses through, among other mechanisms, the activity of arginase-1 and iNOS, and the expansion of T regulatory (Treg) cells...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189484/comparison-of-bq123-epoprostenol-and-verapamil-as-vasodilators-during-normothermic-ex-vivo-liver-machine-perfusion
#15
Juan Echeverri, Nicolas Goldaracena, Johan Moritz Kaths, Ivan Linares, Roizar Roizales, Dagmar Kollmann, Matyas Hamar, Peter Urbanellis, Sujani Ganesh, Oyedele A Adeyi, Mahmood Tazari, Markus Selzner, Nazia Selzner
BACKGROUND: The optimal vasodilator to avoid hepatic artery (HA) vasospasm during normothermic ex vivo liver perfusion (NEVLP) is yet to be determined. We compared safety and efficacy of BQ123 (endothelin1 antagonist), Epoprostenol (prostacyclin analogue), and Verapamil (calcium channel antagonist). METHODS: Livers from porcine heart beating donors were perfused for 3 hours and transplanted into recipient pigs. Four groups were compared: Group 1: livers perfused with a dose of 1...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189483/heme-oxygenase-1-attenuates-hypoxia-reoxygenation-injury-in-mice-liver-sinusoidal-endothelial-cells
#16
Siming Qu, Bo Yuan, Hongbin Zhang, Hanfei Huang, Zhong Zeng, Shikun Yang, Jie Ling, Li Jin, Pu Wu
BACKGROUND: Heme oxygenase 1 (HO-1), a heat shock protein, can be involved in the resolution of inflammation by modulating cytokine expression and apoptotic cell death. Based on recent evidence that liver sinusoidal endothelial cells (LSECs) is the critical target in early period of liver ischemia-reperfusion injury (IRI), this study aims to clarify whether overexpression of HO-1 gene provides a protective effect on mice LSECs. METHOD: LSECs were transfected with adenovirus vectors encoding mice HO-1 gene (Ad-HO-1) or green fluorescent protein (Ad-EGFP)...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189482/analysis-of-biomarkers-within-the-initial-2-years-posttransplant-and-5-year-kidney-transplant-outcomes-results-from-clinical-trials-in-organ-transplantation-17
#17
Geovani Faddoul, Girish N Nadkarni, Nancy D Bridges, Jens Goebel, Donald E Hricik, Richard Formica, Madhav C Menon, Yvonne Morrison, Barbara Murphy, Kenneth Newell, Peter Nickerson, Emilio D Poggio, David Rush, Peter S Heeger
BACKGROUND: An early posttransplant biomarker/surrogate marker for kidney allograft loss has the potential to guide targeted interventions. Previously published findings, including results from the Clinical Trials in Organ Transplantation (CTOT)-01 study, showed that elevated urinary chemokine CXCL9 levels and elevated frequencies of donor-reactive interferon gamma-(IFNγ)-producing T cells by enzyme linked immunosorbent spot (ELISPOT) assay associated with acute cellular rejection within the first year and with lower 1-year posttransplant estimated glomerular filtration rate (eGFR)...
November 20, 2017: Transplantation
https://www.readbyqxmd.com/read/29189633/lung-transplantation-as-a-therapeutic-option-in-acute-respiratory-distress-syndrome
#18
Youjin Chang, Sang Oh Lee, Tae Sun Shim, Sae Hoon Choi, Hyung Ryul Kim, Yong-Hee Kim, Dong Kwan Kim, Kyung-Hyun Do, In-Cheol Choi, Sang-Bum Hong, Seung-Il Park
BACKGROUND: Lung transplantation (LTPL) is considered as a salvage therapeutic option in patients with end-stage lung disease. However, there is a lack of sufficient data on the use of LTPL in patients with acute respiratory distress syndrome (ARDS). While there are few case reports on lung transplant for ARDS, no case series exist up to date. The aim of this study was to evaluate the clinical outcomes of patients with ARDS in accordance with the LTPL status. METHODS: Patients who had severe ARDS (PaO2/FiO2 ratio ≤ 100 mmHg with positive end expiratory pressure ≥ 5 cmH2O) and were listed for LTPL with no underlying end-stage lung disease were included in this single-center retrospective study...
November 17, 2017: Transplantation
https://www.readbyqxmd.com/read/29189632/end-of-treatment-positron-emission-tomography-after-uniform-first-line-therapy-of-b-cell-posttransplant-lymphoproliferative-disorder-identifies-patients-at-low-risk-of-relapse-in-the-prospective-german-ptld-registry
#19
Heiner Zimmermann, Timm Denecke, Martin H Dreyling, Christiane Franzius, Petra Reinke, Marion Subklewe, Holger Amthauer, Michael Kneba, Hanno Riess, Ralf U Trappe
BACKGROUND: Fluorine-18 fluorodeoxyglucose (18F-FDG) - positron-emission tomography (PET) is a recommended standard in the staging and response assessment of 18F-FDG-avid lymphoma. Posttransplant lymphoproliferative disorder (PTLD) can be detected by 18F-FDG-PET at diagnosis with high sensitivity and specificity. However, the role of response assessment by end of treatment (EOT)-PET has only been addressed in small case series. METHODS: We performed a retrospective, multi-center study of 37 patients with CD20-positive posttransplant lymphoproliferative disorder (PTLD) after solid organ transplantation (SOT) treated with uniform, up-to-date first-line protocols in the prospective German PTLD registry who had received EOT-18F-FDG-PET between 2006 and 2014...
November 17, 2017: Transplantation
https://www.readbyqxmd.com/read/29189631/incidence-and-risk-factors-of-intracranial-hemorrhage-in-liver-transplant-recipients
#20
Tom K Gallagher, Kathryn A Thomas, Daniela P Ladner, Daniel Ganger, Farzaneh A Sorond, Shyam Prabhakaran, Michael M Abecassis, Jonathan P Fryer, Eric M Liotta
BACKGROUND: Intracranial hemorrhage after liver transplantation is an infrequently reported complication but one which can have devastating consequences. METHODS: We performed a retrospective cross-sectional analysis of all liver transplants performed between January 2010 and June 2015 at a single high-volume institution using a prospectively maintained electronic database and query of the electronic medical record. Cases of intracranial hemorrhage were adjudicated as either spontaneous intraparenchymal (IPH) or extra-axial (EAH) hemorrhages...
November 17, 2017: Transplantation
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