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https://www.readbyqxmd.com/read/28447098/application-of-natural-language-processing-and-network-analysis-techniques-to-post-market-reports-for-the-evaluation-of-dose-related-anti-thymocyte-globulin-safety-patterns
#1
Taxiarchis Botsis, Matthew Foster, Nina Arya, Kory Kreimeyer, Abhishek Pandey, Deepa Arya
OBJECTIVE: To evaluate the feasibility of automated dose and adverse event information retrieval in supporting the identification of safety patterns. METHODS: We extracted all rabbit Anti-Thymocyte Globulin (rATG) reports submitted to the United States Food and Drug Administration Adverse Event Reporting System (FAERS) from the product's initial licensure in April 16, 1984 through February 8, 2016. We processed the narratives using the Medication Extraction (MedEx) and the Event-based Text-mining of Health Electronic Records (ETHER) systems and retrieved the appropriate medication, clinical, and temporal information...
April 26, 2017: Applied Clinical Informatics
https://www.readbyqxmd.com/read/28432802/subsequent-malignancies-after-allogeneic-hematopoietic-stem-cell-transplantation
#2
Mehmet Gündüz, Mehmet Özen, Uğur Şahin, Selami Koçak Toprak, Sinem Civriz Bozdağ, Meltem Kurt Yüksel, Önder Arslan, Muhit Özcan, Taner Demirer, Meral Beksaç, Osman İlhan, Günhan Gürman, Pervin Topçuoğlu
We evaluated 979 patients for the development of post-transplant lymphoproliferative disease (PTLD) and solid malignancies after allogeneic hematopoietic stem cell transplantations (allo-HSCT) as a late complication. We found 15 (1.5%) subsequent malignancies; three of these malignancies were PTLD, and twelve were solid tumors. The median time from allo-HSCT to the development of PTLD was 9 (3-20) months and that from allo-HSCT to the development of solid tumors was 93 (6-316) months. The cumulative incidence of evolving subsequent malignancy in patients was 1...
April 22, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28419429/mutational-landscape-of-b-cell-post-transplant-lymphoproliferative-disorders
#3
Thomas Menter, Darius Juskevicius, Mary Alikian, Juerg Steiger, Stephan Dirnhofer, Alexandar Tzankov, Kikkeri N Naresh
It is currently unclear whether post-transplant diffuse large B-cell lymphomas (PT-DLBCL) display a similar genomic landscape as DLBCL in immunocompetent patients (IC-DLBCL). We investigated 50 post-transplant lymphoproliferative disorders (PTLDs) including 37 PT-DLBCL samples for somatic mutations frequently observed in IC-DLBCL. Targeted Next Generation Sequencing (NGS) using the Ion Torrent platform and a customized panel of 68 genes was performed on genomic DNA. Non-tumoural tissue was sequenced to exclude germline variants in cases where available...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28392824/posttransplantation-lymphoproliferative-disorder-after-pediatric-solid-organ-transplantation-experiences-of-20-years-in-a-single-center
#4
Hyung Joo Jeong, Yo Han Ahn, Eujin Park, Youngrok Choi, Nam-Joon Yi, Jae Sung Ko, Sang Il Min, Jong Won Ha, Il-Soo Ha, Hae Il Cheong, Hee Gyung Kang
PURPOSE: To evaluate the clinical spectrum of posttransplantation lymphoproliferative disorder (PTLD) after solid organ transplantation (SOT) in children. METHODS: We retrospectively reviewed the medical records of 18 patients with PTLD who underwent liver (LT) or kidney transplantation (KT) between January 1995 and December 2014 in Seoul National University Children's Hospital. RESULTS: Eighteen patients (3.9% of pediatric SOTs; LT:KT, 11:7; male to female, 9:9) were diagnosed as having PTLD over the last 2 decades (4...
March 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28390107/post-transplant-lymphoproliferative-disorder-following-clinical-islet-transplantation-report-of-the-first-two-cases
#5
Anthea Peters, Tolu Olateju, Jean Deschenes, Santosh H Shankarnarayan, Neil Chua, A M James Shapiro, Peter Senior
We report the first two cases of post-transplant lymphoproliferative disorder (PTLD) in recipients of islet transplants worldwide. First, a 44-year old recipient of 3 islet infusions developed PTLD 80 months after his initial transplant, presenting with abdominal pain and diffuse terminal ileum thickening on imaging. He was treated with surgical excision, reduction of immunosuppression and rituximab. Seven months later he developed central nervous system PTLD, presenting with vertigo and diplopia; immunosuppression was discontinued, resulting in graft loss, and he was given high-dose methotrexate and consolidative autologous stem cell transplant...
April 8, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28383790/post-transplant-lymphoproliferative-disease-in-lung-transplantation-a-nested-case-control-study
#6
Annelies Leyssens, Daan Dierickx, Eric K Verbeken, Thomas Tousseyn, Stijn E Verleden, Bart M Vanaudenaerde, Lieven J Dupont, Jonas Yserbyt, Geert M Verleden, Dirk E Van Raemdonck, Robin Vos
Post-transplant lymphoproliferative disorder (PTLD) may compromise long-term outcome of lung transplant (LTx) recipients. A case-control study was performed, comparing LTx recipients with PTLD (n=31) to matched recipients without PTLD (Controls, n=62). Risk factors for PTLD and post-transplant outcomes were assessed. PTLD prevalence was 3.9%, time to PTLD 323 (166-1132) days; and 54.8% had early-onset PTLD versus 45.2% late-onset PTLD. At LTx, more Epstein-Barr virus (EBV)-seronegative patients were present in PTLD (42%) compared to Controls (5%) (p<0...
April 6, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28378408/cancer-recurrence-and-mortality-after-pediatric-heart-transplantation-for-anthracycline-cardiomyopathy-a-report-from-the-pediatric-heart-transplant-study-phts-group
#7
Matthew J Bock, Elfriede Pahl, Paolo G Rusconi, Gerard J Boyle, John J Parent, Clare J Twist, James K Kirklin, Elizabeth Pruitt, Daniel Bernstein
We aimed to determine whether malignancy after pediatric HTx for ACM affects overall post-HTx survival. Patients <18y listed for HTx for ACM in the PHTS database between 1993 and 2014 were compared to those with DCM. A 2:1 matched DCM cohort was also compared. Wait-list and post-HTx survival, along with freedom from common HTx complications, were compared. Eighty subjects were listed due to ACM, whereas 1985 were listed for DCM. Although wait-list survival was higher in the ACM group, post-HTx survival was lower for the ACM cohort...
April 4, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28376031/the-immune-response-to-epstein-barr-virus-and-implications-for-posttransplant-lymphoproliferative-disorder
#8
Olivia M Martinez, Sheri M Krams
Posttransplant lymphoproliferative disorder (PTLD) is a serious complication in organ transplant recipients and is most often associated with the Epstein Barr virus (EBV). EBV is a common gammaherpes virus with tropism for B lymphocytes and infection in immunocompetent individuals is typically asymptomatic and benign. However, infection in immunocompromised or immunosuppressed individuals can result in malignant B cell lymphoproliferations such as PTLD. EBV+ PTLD can arise following primary EBV infection, or because of reactivation of a prior infection, and represents a leading malignancy in the transplant population...
April 4, 2017: Transplantation
https://www.readbyqxmd.com/read/28367350/immune-reconstitution-inflammatory-syndrome-occurring-in-a-kidney-transplant-patient-with-extrapulmonary-tuberculosis
#9
Jose Iglesias, Kandria Jumil Ledesma, Paul J Couto, Jessie Liu
Tuberculosis (TB) occurring in solid organ transplantation (SOT) is associated with significant morbidity and mortality usually due to delays in diagnosis, drug toxicity encountered with antimycobacterial therapy, and drug-drug interactions. TB in SOT patients may mimic other infectious and noninfectious posttransplant complications such as posttransplant lymphoproliferative disorder (PTLD) and systemic cytomegalovirus infection. Immune reconstitution inflammatory syndrome (IRIS) is a host response resulting in paradoxical worsening of an infectious disease which occurs after the employment of effective therapy and reversal of an immunosuppressed state...
2017: Case Reports in Transplantation
https://www.readbyqxmd.com/read/28357549/fdg-uptake-in-cervical-lymph-nodes-in-children-without-head-and-neck-cancer
#10
Reza Vali, Alaa A Bakari, Eman Marie, Mahnaz Kousha, Martin Charron, Amer Shammas
BACKGROUND: Reactive cervical lymphadenopathy is common in children and may demonstrate increased (18)F-fluoro-deoxyglucose ((18)F-FDG) uptake on positron emission tomography/computed tomography (PET/CT). OBJECTIVE: We sought to evaluate the frequency and significance of (18)F-FDG uptake by neck lymph nodes in children with no history of head and neck cancer. MATERIALS AND METHODS: The charts of 244 patients (114 female, mean age: 10.4 years) with a variety of tumors such as lymphoma and post-transplant lymphoproliferative diseases (PTLD), but no head and neck cancers, who had undergone (18)F-FDG PET/CT were reviewed retrospectively...
March 29, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28355720/-the-clinical-characteristics-of-adult-hemophagocytic-lymphohistiocytosis-treated-with-haploidentical-donor-hematopoietic-stem-cell-transplantation
#11
L Fu, N Wei, J S Wang, L Wu, Y N Wang, D Y Huang, J L Liu, Z Wang
Objective: To analyze the clinical characteristics of adult patients with hemophagocytic lymphohistiocytosis (HLH) receiving haploidentical donor hematopoietic stem cell transplantation (HID HSCT). Method: We retrospectively reviewed 20 adult patients with HLH from August 2009 to August 2014.The clinical features and outcome were analyzed. Results: Conditioning regimens consisted of total body irradiation/etoposide/cyclophosphamide (TBI/VP-16/CTX) and busulfan (Bu)/VP-16/CTX in HLH with anti-thymocyte globulin (ATG) 8 mg/kg...
April 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28340951/epstein-barr-virus-hemophagocytic-lymphohistiocytosis-related-to-rituximab-use-and-immunopathogenetic-insights
#12
Sotirios G Papageorgiou, Sotirios Tsiodras, Georgios Siakallis, Efthimia Bazani, Aris Spathis, Garyfalia Poulakou, Penelope Korkolopoulou, Ioannis Panayiotides, Vasiliki Pappa
Anti-CD20-based chemo-immunotherapeutic regimens have been suggested to assist in the management of Epstein-Barr virus (EBV)-induced hemophagocytic lymphohistiocytosis (HLH) and EBV-associated post-transplant lymphoproliferative disorders (EBV-PTLD), by reducing EBV viral load and EBV-induced inflammation. Herein we report a fatal EBV-related HLH in the context of Hodgkin lymphoma (HL)-like Richter's transformation of B chronic lymphocytic leukemia (B-CLL), two months after rituximab treatment. The complex balance between EBV driven T-cell stimulation and immunosuppressive therapy in the context of multiple immune deficits is discussed...
December 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28317077/de-novo-cancer-in-patients-on-dialysis-and-after-renal-transplantation-north-western-italy-1997-2012
#13
Valentina Mazzucotelli, Pierluca Piselli, Diana Verdirosi, Claudia Cimaglia, Giovanni Cancarini, Diego Serraino, Silvio Sandrini
BACKGROUND: Kidney transplant recipients (KTR) are known to have a higher risk of cancer than the general population, especially of malignancies related to oncogenic viral infections. This study assessed the incidence of de novo malignancies (DNMs) in patients receiving kidney transplantation and in dialysis patients (DP) on the waiting list for transplantation at the same centre. The aim was to quantify the contribution of post-transplant immunosuppression to the underlying risk of developing a DNM in dialysis patients on the waiting list for kidney transplant...
March 19, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28316846/donor-derived-smoldering-multiple-myeloma-following-a-hematopoietic-cell-transplantation-for-aml
#14
Bita Fakhri, Mark Fiala, Michael Slade, Peter Westervelt, Armin Ghobadi
Posttransplant Lymphoproliferative Disorder (PTLD) is one of the most common malignancies complicating solid organ transplantation. In contrast, PTLD accounts for a minority of secondary cancers following allogeneic hematopoietic cell transplantation (HCT). Here we report on a 61-year-old woman who received an ABO-mismatched, HLA-matched unrelated donor hematopoietic cell transplantation from a presumably healthy donor for a diagnosis of acute myeloid leukemia (AML). Eighteen months following her transplant, she developed a monoclonal gammopathy...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28316109/airway-inflammation-and-symptoms-in-children-following-liver-and-heart-transplantation
#15
Andrew J Redmann, John C Bucuvalas, Robert E Wood, Clifford Chin, Catherine K Hart
OBJECTIVES: To describe the upper airway endoscopic findings of children with upper airway symptoms after liver transplantation (LT) or heart transplantation (HT). METHODS: Review of children undergoing airway endoscopy after LT or HT from 2011 to 2015 at a tertiary care pediatric hospital. Airway findings, biopsy results, immunosuppression, and Epstein-Barr virus (EBV) levels were recorded. RESULTS: Twenty-three of 158 LT (111) and HT (47) recipients underwent endoscopy...
March 18, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28295657/severe-acute-cellular-rejection-after-intestinal-transplantation-is-associated-with-poor-patient-and-graft-survival
#16
Genevieve Huard, Thomas D Schiano, Jang Moon, Kishore Iyer
BACKGROUND: Severe acute cellular rejection (ACR) occurs frequently after intestinal transplantation (ITx). AIM: To evaluate the outcomes and the risk factors for graft failure and mortality in patients with severe ACR after ITx. METHODS: Retrospective study evaluating all ITx recipients who developed severe ACR between 01/2000 and 07/2014. Demographic and histologic data were reviewed. RESULTS: 20/126 (15.9%) ITx recipients developed severe ACR...
March 10, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28280938/viral-load-of-ebv-dnaemia-is-a-predictor-of-ebv-related-post-transplant-lymphoproliferative-disorders-in-pediatric-renal-transplant-recipients
#17
Elisa Colombini, Isabella Guzzo, Federica Morolli, Germana Longo, Cristina Russo, Alessandra Lombardi, Pietro Merli, Luisa Barzon, Luisa Murer, Simone Piga, Marta Luisa Ciofi Degli Atti, Franco Locatelli, Luca Dello Strologo
BACKGROUND: Post-transplant lymphoproliferative disorder (PTLD) is a severe complication of solid organ transplantation that can be classified into two major subtypes, namely, early lesions and non-early lesions, based on histopathological findings. In the vast majority of cases, proliferating cells are B lymphocytes and, most frequently, proliferation is induced by Epstein-Barr virus (EBV) infection. METHODS: The aim of our study was to evaluate the natural history of EBV infection and its possible evolution toward PTLD in a pediatric cohort of patients who received a renal transplant between January 2000 and December 2013...
March 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28275302/post-transplant-lymphoproliferative-disorder-after-liver-transplantation-incidence-long-term-survival-and-impact-of-serum-tacrolimus-level
#18
Ahad Eshraghian, Mohammad Hadi Imanieh, Seyed Mohsen Dehghani, Saman Nikeghbalian, Alireza Shamsaeefar, Frouzan Barshans, Kourosh Kazemi, Bita Geramizadeh, Seyed Ali Malek-Hosseini
AIM: To investigate incidence and survival of post-transplant lymphoproliferative disorder (PTLD) patients after liver transplantation. METHODS: A cross-sectional survey was conducted among patients who underwent liver transplantation at Shiraz Transplant Center (Shiraz, Iran) between August 2004 and March 2015. Clinical and laboratory data of patients were collected using a data gathering form. RESULTS: There were 40 cases of PTLD in the pediatric age group and 13 cases in the adult group...
February 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28272287/risk-factors-and-outcomes-of-de-novo-cancers-excluding-nonmelanoma-skin-cancer-after-liver-transplantation-for-primary-sclerosing-cholangitis
#19
Mohamad A Mouchli, Siddharth Singh, Edward V Loftus, Lisa Boardman, Jayant Talwalkar, Charles B Rosen, Julie K Heimbach, Russell H Wiesner, Bashar Hasan, John J Poterucha, Kymberly D Watt
BACKGROUND: Patients with primary sclerosing cholangitis (PSC) may be at higher of risk of malignancy after liver transplantation (LT) compared to other LT recipients. We aimed to determine the cumulative incidence of/risk factors for and long-term cancer-related mortality in patients with PSC after LT. METHODS: All adult patients who underwent LT for PSC without cholangiocarcinoma from 1984-2012, with follow-up through June 2015. We estimated cumulative incidence, risk factors and mortality from de novo malignancies after LT RESULTS: 293 patients were identified (mean age, 47±12 years; 63...
March 8, 2017: Transplantation
https://www.readbyqxmd.com/read/28265581/impact-of-desensitization-on-antiviral-immunity-in-hla-sensitized-kidney-transplant-recipients
#20
Mieko Toyoda, Bong-Ha Shin, Shili Ge, James Mirocha, David Thomas, Maggie Chu, Edgar Rodriguez, Christine Chao, Anna Petrosyan, Odette A Galera, Ashley Vo, Jua Choi, Alice Peng, Joseph Kahwaji, Stanley C Jordan
Viral infections represent significant morbidity and mortality factors in kidney transplant recipients, with CMV, EBV, and BKV infections being most common. Desensitization (DES) with IVIg and rituximab with/without plasma exchange followed by kidney transplantation with alemtuzumab induction increased successful transplant rates in HLA-sensitized patients but may represent an increased risk for viral infections due to severe lymphocyte depletion. Here, we report on the posttransplant viral infection status in 372 DES versus 538 non-DES patients...
2017: Journal of Immunology Research
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