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Dogan B, Sema YA, Bora K, Veysel U, Benan D, Ezgi KT, Gozde AK, Demir D, Ozsan N, Hekimgil M, Zumrut SB, Miray K, Funda C, Sema A. Post-transplant lymphoproliferative disorder associated Epstein-Barr virus DNAemia after liver transplantation in children: Experience from single center. J Med Virol 2024; 96:e29767. [PMID: 38932460 DOI: 10.1002/jmv.29767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 06/04/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
The most prevalent malignancy that complicates both adult and pediatric solid organ transplantation is post-transplant lymphoproliferative disorder (PTLD). This study aimed to analyze the clinical and pathological characteristics, treatments, and outcomes of Epstein-Barr virus (EBV) DNAemia and PTLD in pediatric liver transplant recipients. A retrospective chart review was performed on 112 patients less than 18 years of age who underwent isolated orthotopic liver transplantation (OLT) between 2010 and 2022 at Ege University Children's Hospital. Data gathered for 1-year post-OLT included age at OLT, EBV, immunoglobulin (Ig)M/IgG status of the donor and recipient, indication for OLT, induction regimen, all immunosuppression levels, date and result of EBV polymerase chain reaction testing, rejection episodes documented by liver biopsy, and the development of PTLD. Forty-nine patients (43.75%) developed EBV DNAemia (median interval from surgery: 2 months, min-max: 2-36), of which 43 (87.8%) grafts came from living donors, and 6 (12.2%) came from deceased donors. Nine (18.4%) patients died during follow-up, and eight (16.3%) developed PTLD. Of these 8 patients; five patients developed EBV-related disease, one child developed hemophagocytic lymphohistiocytosis, one developed aplastic anemia, and one child developed B cell lymphoma. When PTLD patients and without-PTLD patients were compared, pediatric intensive care unit hospitalization, abnormal bone marrow biopsy findings, lymphadenopathy, age at diagnosis of EBV DNAemia, EBV viral load, tacrolimus (FK 506) pre-infection, were higher and tacrolimus 1-month levels were lower in patients with PTLD (p < 0.05). In logistic regression analysis, we showed that the age at diagnosis of EBV DNAemia was significantly higher in children with PTLD (p = 0.045; OR: 1.389; 95% CI: 1.007-1.914). PTLD is a rare but severe complication associated with EBV after OLT. This study demonstrated that PTLD is associated with older age, higher tacrolimus blood levels before EBV DNAemia, and higher peak EBV viral load at 1 month of EBV DNAemia.
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Affiliation(s)
- Barut Dogan
- Division of Gastroenterology, Hepatology, and Nutrition Disease, Department of Pediatrics, Medical School of Ege University, İzmir, Türkiye
| | - Yildirim Arslan Sema
- Division of Infectious Disease, Department of Pediatrics, Medical School of Ege University, Izmir, Turkey
| | - Kunay Bora
- Division of Gastroenterology, Hepatology, and Nutrition Disease, Department of Pediatrics, Medical School of Ege University, İzmir, Türkiye
| | - Umman Veysel
- Department of General Surgery, Medical School of Ege University, İzmir, Turkey
| | - Dernek Benan
- Department of Pediatrics, Medical School of Ege University, Izmir, Turkey
| | - Kıran Taşçı Ezgi
- Department of Pediatrics, Sivas Numune Hospital, Gastroenterology, Hepatology, and Nutrition Disease, Sivas, Turkey
| | - Akkus Kayali Gozde
- Department of Microbiology, Medical School of Ege University, Izmir, Turkey
| | - Derya Demir
- Department of Pathology, Medical School of Ege University, İzmir, Turkey
| | - Nazan Ozsan
- Department of Pathology, Medical School of Ege University, İzmir, Turkey
| | - Mine Hekimgil
- Department of Pathology, Medical School of Ege University, İzmir, Turkey
| | - Sahbudak Bal Zumrut
- Division of Infectious Disease, Department of Pediatrics, Medical School of Ege University, Izmir, Turkey
| | - Karakoyun Miray
- Division of Gastroenterology, Hepatology, and Nutrition Disease, Department of Pediatrics, Medical School of Ege University, İzmir, Türkiye
| | - Cetin Funda
- Division of Gastroenterology, Hepatology, and Nutrition Disease, Department of Pediatrics, Medical School of Ege University, İzmir, Türkiye
| | - Aydogdu Sema
- Division of Gastroenterology, Hepatology, and Nutrition Disease, Department of Pediatrics, Medical School of Ege University, İzmir, Türkiye
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Mark C, Martin G, Baadjes B, Geerlinks AV, Punnett A, Lafay-Cousin L. Treatment of Monomorphic Posttransplant Lymphoproliferative Disorder in Pediatric Solid Organ Transplant: A Multicenter Review. J Pediatr Hematol Oncol 2024; 46:e127-e130. [PMID: 38145403 DOI: 10.1097/mph.0000000000002804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023]
Abstract
Posttransplant lymphoproliferative disorder (PTLD) is the most common posttransplant malignancy in children. We reviewed data from 3 Canadian pediatric centers to determine patient characteristics, treatment approaches, and outcomes for children with monomorphic PTLD. There were 55 eligible children diagnosed between January 2001 to December 2021. Forty-eight patients (87.2%) had B-cell PTLD: Burkitt lymphoma (n = 25; 45.4%) and diffuse large B-cell lymphoma (n = 23; 41.2%), the remainder had natural killer (NK)/T-cell lymphoma (n = 5; 9.1%), Hodgkin lymphoma (n = 1;1.8%), or other (n = 1;1.8%). Thirty-nine (82.1%) patients with B-cell PTLD were treated with rituximab and chemotherapy with or without a reduction in immunosuppression (reduced immune suppression). The chemotherapy used was primarily one of 2 regimens: Mature Lymphoma B-96 protocol in 22 patients (56.4%) and low-dose cyclophosphamide with prednisone in 14 patients (35%). Most patients with T/NK-cell lymphoma were treated with reduced immune suppression + chemotherapy (n = 4; 80%). For all patients with monomorphic PTLD, the projected 3-year event-free survival/3-year overall survival was 62% and 77%, respectively. Of the patients, 100% with T/NK-cell PTLD 100% progressed or relapsed and, subsequently, died of disease. For patients with B-cell PTLD, there was no significant difference in outcome between the two main chemotherapy regimens employed.
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Affiliation(s)
- Catherine Mark
- Division of Hematology/Oncology, Toronto Hospital for Sick Children, Toronto, ON
| | - Georgina Martin
- Department of Hematology/Oncology, Jim Pattison Children's Hospital, Saskatoon, SK
| | - Bjorn Baadjes
- Department of Paediatric Hematology/Oncology, BC Children's Hospital, Vancouver, British CO
| | - Ashley V Geerlinks
- Department of Paediatric Hematology/Oncology, Children's Hospital, London Health Sciences Centre, Western University, London, ON
| | - Angela Punnett
- Division of Hematology/Oncology, Toronto Hospital for Sick Children, Toronto, ON
| | - Lucie Lafay-Cousin
- Department of Paediatric Hematology/Oncology and Bone Marrow Transplant, Alberta Children's Hospital, Calgary, AB, Canada
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Quintero Bernabeu J, Juamperez J, Mercadal-Hally M, Larrarte King M, Gallego Melcon S, Gros Subias L, Sábado Álvarez C, Soler-Palacin P, Melendo Pérez S, Esperalba J, Navarro Jiménez A, Garrido Pontnou M, Camacho Soriano J, Hidalgo Llompart E, Bilbao Aguirre I, Charco Torra R. Epstein-Barr virus-associated risk factors for post-transplant lymphoproliferative disease in pediatric liver transplant recipients. Pediatr Transplant 2022; 26:e14292. [PMID: 35466492 DOI: 10.1111/petr.14292] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 02/11/2022] [Accepted: 03/23/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Post-transplant lymphoproliferative disorder (PTLD) are the most common de novo malignancies after liver transplantation (LT) in children. The aim of our study was to assess the role of pre-LT EBV status and post-LT EBV viral load as risk factors for developing PTLD in a cohort of pediatric LT recipients. METHODS Data of all children who underwent LT between January 2002 and December 2019 were collected. Two cohorts were built EBV pre-LT primary infected cohort and EBV post-LT primary infected cohort. Moreover, using the maximal EBV viral load, a ROC curve was constructed to find a cutoff point for the diagnosis of PTLD. RESULTS Among the 251 patients included in the study, fifteen PTLD episodes in 14 LT recipients were detected (2 plasmacytic hyperplasia, 10 polymorphic PTLD, 2 monomorphic PTLD, and 1 Classical-Hodgkin's lymphoma). Patients of the EBV post-LT primary infected cohort were 17.1 times more likely to develop a PTLD than patients of the EBV pre-LT primary infected cohort (2.2-133.5). The EBV viral load value to predict PTLD was set at 211 000 UI/mL (93.3% sensitivity and 77.1% specificity; AUC 93.8%; IC 0.89-0.98). In EBV post-LT primary infected cohort, patients with a viral load above 211 000 were 30 times more likely to develop PTLD than patients with a viral load below this value (OR 29.8; 3.7-241.1; p < 0.001). CONCLUSIONS The combination of pretransplant EBV serological status with EBV post-transplant viral load could be a powerful tool to stratify the risk of PTLD in pediatric LT patients.
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Affiliation(s)
- Jesus Quintero Bernabeu
- Pediatric Hepatology and Liver Transplant Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Javier Juamperez
- Pediatric Hepatology and Liver Transplant Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Maria Mercadal-Hally
- Pediatric Hepatology and Liver Transplant Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Mauricio Larrarte King
- Pediatric Hepatology and Liver Transplant Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Soledad Gallego Melcon
- Pediatric Oncology and Hematology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Luis Gros Subias
- Pediatric Oncology and Hematology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | | | - Pere Soler-Palacin
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Susana Melendo Pérez
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Juliana Esperalba
- Microbiology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | | | | | | | - Ernest Hidalgo Llompart
- HPB Surgery and Transplantation Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Itxarone Bilbao Aguirre
- HPB Surgery and Transplantation Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Ramón Charco Torra
- HPB Surgery and Transplantation Department, Vall d'Hebron University Hospital, Barcelona, Spain
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Éboli LPDCB, Tannuri ACA, Tannuri U. Seropositivity for cytomegalovirus and PCR-EBV monitoring: Protective factors for posttransplant lymphoproliferative disorder in pediatric liver transplant. Pediatr Transplant 2022; 26:e14226. [PMID: 35037358 DOI: 10.1111/petr.14226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND PTLD is a clinical condition with high mortality. Monitoring EBV replication can be a useful tool to avoid the development of PTLD. MATERIALS AND METHODS This was a retrospective analysis of 428 pediatric patients who underwent liver transplantation between 1989 and 2016. The patients were divided into 2 groups (transplanted before 2006, when PCR-EBV was not monitored, and after 2006, when PCR-EBV monitoring was started). Patients with continuous PCR measurements for EBV were evaluated for the impact of a reduction in immunosuppression or a change in immunosuppressants on the number of viral copies. A logistic regression model was applied to evaluate factors related to PTLD. RESULTS The prevalence of PTLD was 4.2%. After monitoring patients with PCR for EBV levels, a predominance of the most severe, monomorphic form of lymphoproliferative disorder was observed (p = .009). The PTLD mortality was 5%. There was a change in the PCR level after tacrolimus reduction (p = .002) and after tacrolimus exchange for mTOR (p = .008). The number of EBV copies was significantly higher (p = .029) in patients who developed PTLD. In the multiple regression model, seropositivity for CMV was an independent protective factor for lymphoproliferative disorder (OR=0.09; 95% CI 0.02-0.42), reducing the chance of having PTLD adjusted by serology for EBV by 91%. CONCLUSIONS Monitoring the EBV viral load by PCR seems to prevent the emergence of milder forms of lymphoproliferative disorder. Pretransplant seropositivity for CMV is a protective factor for PTLD.
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Affiliation(s)
| | - Ana Cristina Aoun Tannuri
- Pediatric Liver Transplant Department, Instituto da Criança da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Uenis Tannuri
- Pediatric Liver Transplant Department, Instituto da Criança da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Baker A, Frauca Remacha E, Torres Canizales J, Bravo-Gallego LY, Fitzpatrick E, Alonso Melgar A, Muñoz Bartolo G, Garcia Guereta L, Ramos Boluda E, Mozo Y, Broniszczak D, Jarmużek W, Kalicinski P, Maecker-Kolhoff B, Carlens J, Baumann U, Roy C, Chardot C, Benetti E, Cananzi M, Calore E, Dello Strologo L, Candusso M, Lopes MF, Brito MJ, Gonçalves C, Do Carmo C, Stephenne X, Wennberg L, Stone R, Rascon J, Lindemans C, Turkiewicz D, Giraldi E, Nicastro E, D’Antiga L, Ackermann O, Jara Vega P. Current Practices on Diagnosis, Prevention and Treatment of Post-Transplant Lymphoproliferative Disorder in Pediatric Patients after Solid Organ Transplantation: Results of ERN TransplantChild Healthcare Working Group Survey. CHILDREN (BASEL, SWITZERLAND) 2021; 8:children8080661. [PMID: 34438552 PMCID: PMC8394841 DOI: 10.3390/children8080661] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 12/25/2022]
Abstract
(1) Background: Post-transplant lymphoproliferative disease (PTLD) is a significant complication of solid organ transplantation (SOT). However, there is lack of consensus in PTLD management. Our aim was to establish a present benchmark for comparison between international centers and between various organ transplant systems and modalities; (2) Methods: A cross-sectional questionnaire of relevant PTLD practices in pediatric transplantation was sent to multidisciplinary teams from 17 European center members of ERN TransplantChild to evaluate the centers’ approach strategies for diagnosis and treatment and how current practices impact a cross-sectional series of PTLD cases; (3) Results: A total of 34 SOT programs from 13 European centers participated. The decision to start preemptive treatment and its guidance was based on both EBV viremia monitoring plus additional laboratory methods and clinical assessment (61%). Among treatment modalities the most common initial practice at diagnosis was to reduce the immunosuppression (61%). A total of 126 PTLD cases were reported during the period 2012–2016. According to their histopathological classification, monomorphic lesions were the most frequent (46%). Graft rejection after PTLD remission was 33%. Of the total cases diagnosed with PTLD, 88% survived; (4) Conclusions: There is still no consensus on prevention and treatment of PTLD, which implies the need to generate evidence. This might successively allow the development of clinical guidelines.
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Affiliation(s)
- Alastair Baker
- Paediatric Liver, Gastrointestinal and Nutrition Centre, School of Medicine, King’s College Hospital, King’s College London, Denmark Hill, London SE5 9RS, UK; (A.B.); (E.F.)
| | - Esteban Frauca Remacha
- Servicio de Hepatología Pediátrica, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.F.R.); (G.M.B.); (P.J.V.)
| | - Juan Torres Canizales
- Lymphocyte Pathophysiology in Immunodeficiencies Group, La Paz Institute of Biomedical Research (IdiPAZ), Hospital Universitario La Paz and Center for Biomedical Network Research on Rare Diseases (CIBERER U767), 28046 Madrid, Spain;
| | - Luz Yadira Bravo-Gallego
- Lymphocyte Pathophysiology in Immunodeficiencies Group, La Paz Institute of Biomedical Research (IdiPAZ), Hospital Universitario La Paz and Center for Biomedical Network Research on Rare Diseases (CIBERER U767), 28046 Madrid, Spain;
- Correspondence: ; Tel.: +34-917277576
| | - Emer Fitzpatrick
- Paediatric Liver, Gastrointestinal and Nutrition Centre, School of Medicine, King’s College Hospital, King’s College London, Denmark Hill, London SE5 9RS, UK; (A.B.); (E.F.)
| | - Angel Alonso Melgar
- Servicio de Nefrología Pediátrica, Hospital Universitario La Paz, 28046 Madrid, Spain;
| | - Gema Muñoz Bartolo
- Servicio de Hepatología Pediátrica, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.F.R.); (G.M.B.); (P.J.V.)
| | - Luis Garcia Guereta
- Servicio de Cardiología Pediátrica, Hospital Universitario La Paz, 28046 Madrid, Spain;
| | - Esther Ramos Boluda
- Pediatric Gastroenterology Intestinal Rehabilitation Unit, University Hospital La Paz, 28046 Madrid, Spain;
| | - Yasmina Mozo
- Pediatric Hemato-Oncology Department, Hospital Universitario La Paz, 28046 Madrid, Spain;
| | - Dorota Broniszczak
- Department of Pediatric Surgery and Organ Transplantation, Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (D.B.); (P.K.)
| | - Wioletta Jarmużek
- Department of Nephrology and Kidney Transplantation, Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | - Piotr Kalicinski
- Department of Pediatric Surgery and Organ Transplantation, Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (D.B.); (P.K.)
| | - Britta Maecker-Kolhoff
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany;
| | - Julia Carlens
- Clinic for Paediatric Pneumology, Allergology, and Neonatology, Hannover Medical School, 30625 Hannover, Germany;
| | - Ulrich Baumann
- Division of Paediatric Gastroenterology and Hepatology, Children’s Hospital, Hannover Medical School, 30625 Hannover, Germany;
| | - Charlotte Roy
- Service de Pneumologie Pédiatrique, Hôpital Necker-Enfants Malades, AP-HP, Université Paris, 75015 Paris, France;
| | - Christophe Chardot
- Service de Chirurgie Pédiatrique, Hôpital Necker-Enfants Malades, AP-HP, Université Paris Descartes, 75015 Paris, France;
| | - Elisa Benetti
- Pediatric Nephrology, Dialysis and Transplant Unit, Department of Women’s and Children’s Health, Azienda Ospedaliera di Padova, 35128 Padova, Italy;
| | - Mara Cananzi
- Unit of Paediatric Gastroenterology, Digestive Endoscopy, Hepatology and Care of the Child with Liver Transplantation, Department of Women’s and Children’s Health, Azienda Ospedaliera di Padova, 35128 Padova, Italy;
| | - Elisabetta Calore
- Unit of Paediatric Onco-Haematology, Department of Women’s and Children’s Health, Azienda Ospedaliera di Padova, 35128 Padova, Italy;
| | - Luca Dello Strologo
- Nephrology Unit, Bambino Gesù Children’s Research Hospital, IRCCS, 00165 Rome, Italy;
| | - Manila Candusso
- Department of Hepatology and Gastroenterology, Bambino Gesù Children Hospital, 00165 Rome, Italy;
| | - Maria Francelina Lopes
- Department of Paediatric Surgery, Centro Hospitalar e Universitário de Coimbra, and Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal;
| | - Manuel João Brito
- Department of Paediatric Oncology and Centro de Investigação e Formação Clínica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal;
| | - Cristina Gonçalves
- Paediatric Liver Transplant Unit, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal;
| | - Carmen Do Carmo
- Paediatric Nephrology Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal;
| | - Xavier Stephenne
- Laboratoire d’Hépatologie Pédiatrique et Thérapie Cellulaire, Unité PEDI, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium;
| | - Lars Wennberg
- Department of Transplantation Surgery, Karolinska University Hospital, 171 76 Stockholm, Sweden;
| | - Rosário Stone
- Unidade de Nefrologia e Transplantação Renal, Serviço de Pediatria Médica, Departamento de Pediatria, Hospital de Santa Maria, Centro Académico de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal;
| | - Jelena Rascon
- Centre for Paediatric Oncology and Haematology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania;
| | - Caroline Lindemans
- Princess Maxima Center for Pediatric Oncology, Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht, Utrecht University, 3584 CS Utrecht, The Netherlands;
| | - Dominik Turkiewicz
- Department of Pediatrics, Skåne University Hospital, 222 42 Lund, Sweden;
| | - Eugenia Giraldi
- Pediatric Oncology, Hospital Papa Giovanni XXIII, 24127 Bergamo, Italy;
| | - Emanuele Nicastro
- Pediatric Hepatology, Gastroenterology and Transplantation, Hospital Papa Giovanni XXIII, 24127 Bergamo, Italy; (E.N.); (L.D.)
| | - Lorenzo D’Antiga
- Pediatric Hepatology, Gastroenterology and Transplantation, Hospital Papa Giovanni XXIII, 24127 Bergamo, Italy; (E.N.); (L.D.)
| | - Oanez Ackermann
- Pediatric Hepatology, National Centre for Biliary Atresia, Université París-Saclay, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France;
| | - Paloma Jara Vega
- Servicio de Hepatología Pediátrica, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.F.R.); (G.M.B.); (P.J.V.)
- La Paz Institute of Biomedical Research, IdiPAZ, Hospital Universitario La Paz, 28046 Madrid, Spain
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Barış Z, Özçay F, Yılmaz Özbek Ö, Haberal N, Sarıalioğlu F, Haberal M. A single-center experience of post-transplant lymphoproliferative disorder (PTLD) cases after pediatric liver transplantation: Incidence, outcomes, and association with food allergy. TURKISH JOURNAL OF GASTROENTEROLOGY 2018; 29:354-360. [PMID: 29755021 DOI: 10.5152/tjg.2018.17731] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS We evaluated our 16-year single-center experience of pediatric post-transplant lymphoproliferative disorder (PTLD) cases who underwent liver transplantation between 2001 and 2017. MATERIALS AND METHODS Of the 236 pediatric patients who underwent liver transplantation between 2001 and 2017, the clinical and laboratory data of eight patients diagnosed with PTLD were reviewed. The pre-transplant Epstein-Barr virus (EBV) status of 172 patients was also recorded. RESULTS The total incidence of PTLD was 3.4%. The incidence of PTLD was 10% in pre-transplant EBV immunoglobulin G (IgG)-seronegative patients and 0.8% in pre-transplant EBV IgG-seropositive patients. The mean age of the patients at liver transplantation was 2.71±3.21 years, and four patients were aged below 1 year at the time of transplantation. PTLD was diagnosed at 21.81±18.1 months after transplantation. The primary site of involvement was variable among patients: peripheral and mediastinal lymph nodes, stomach and intestine, transplanted graft, bone marrow, and nasopharynx. The eosinophil count varied greatly among patients, with a mean value of 524.62±679/mm3. Three patients had a food allergy and were administered an elimination diet at the time of PTLD diagnosis. Six patients had PTLD of B-cell origin. One patient died due to neutropenic sepsis during chemotherapy, whereas seven patients were followed up in full remission for 7.75±4 years. CONCLUSION PTLD is a life-threatening complication of solid-organ transplantation with a heterogeneous clinical spectrum. Food allergy had a close association with PTLD. A close follow-up of patients with risk factors and an early diagnosis with appropriate treatment may lead to a better outcome.
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Affiliation(s)
- Zeren Barış
- Department of Pediatric Gastroenterology, Başkent University Hospital, Ankara, Turkey
| | - Figen Özçay
- Department of Pediatric Gastroenterology, Başkent University Hospital, Ankara, Turkey
| | - Özlem Yılmaz Özbek
- Department of Pediatric Allergy, Başkent University Hospital, Ankara, Turkey
| | - Nihan Haberal
- Department of Pathology, Başkent University Hospital, Ankara, Turkey
| | - Faik Sarıalioğlu
- Department of Pediatric Oncology, Başkent University Hospital, Ankara, Turkey
| | - Mehmet Haberal
- Department of General Surgery and Transplant Surgery, Başkent University Hospital, Ankara, Turkey
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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. Transplantation 2018; 102:868-875. [DOI: 10.1097/tp.0000000000002006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effectiveness of Preemptive Therapy for Cytomegalovirus Disease in Pediatric Liver Transplantation. Transplantation 2017; 101:804-810. [PMID: 27755504 DOI: 10.1097/tp.0000000000001531] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Most pediatric liver transplantation (LT) centers administer long courses of prophylaxis against cytomegalovirus (CMV) without evidence of benefit and with significant drug exposure and costs. We aimed at evaluating overall outcomes, direct and putative indirect effects of CMV, possible impact of viremia and risk factors for CMV infection in pediatric LT recipients managed with ganciclovir-based preemptive therapy (PET). METHODS The records of all the children who underwent LT between 2008 and 2014 were retrospectively analyzed. RESULTS One hundred children were included. Three children had CMV disease; no CMV-related death or graft loss was recorded. The only identified risk factor for CMV infection was the donor/recipient serostatus (odds ratio, 17.23; 95% confidence interval, 1.88-157.87; P = 0.012), while viremia per se did not worsen LT outcomes, such as the incidence of acute rejection, Epstein-Barr virus infection, sepsis, biliary and vascular complications, nor graft dysfunction/loss or death at 3 and 5 years after LT. When compared with a historical cohort of children receiving ganciclovir prophylaxis, PET did not differ from prophylaxis for any of the selected outcomes, but was rather associated with lower antiviral drug exposure (6.4 ± 13 days vs 38.6 ± 14 days, P < 0.0001) and cost per patient (2.2 ± 3.9 k&OV0556; vs 6.6 ± 8.2 k&OV0556;, P = 0.001). CONCLUSIONS PET is effective in controlling CMV in children receiving LT, with lower costs and lower exposure to antivirals.
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Abstract
OBJECTIVE To describe the pathophysiology associated with multiple organ dysfunction syndrome in children. DATA SOURCES Literature review, research data, and expert opinion. STUDY SELECTION Not applicable. DATA EXTRACTION Moderated by an experienced expert from the field, pathophysiologic processes associated with multiple organ dysfunction syndrome in children were described, discussed, and debated with a focus on identifying knowledge gaps and research priorities. DATA SYNTHESIS Summary of presentations and discussion supported and supplemented by relevant literature. CONCLUSIONS Experiment modeling suggests that persistent macrophage activation may be a pathophysiologic basis for multiple organ dysfunction syndrome. Children with multiple organ dysfunction syndrome have 1) reduced cytochrome P450 metabolism inversely proportional to inflammation; 2) increased circulating damage-associated molecular pattern molecules from injured tissues; 3) increased circulating pathogen-associated molecular pattern molecules from infection or endogenous microbiome; and 4) cytokine-driven epithelial, endothelial, mitochondrial, and immune cell dysfunction. Cytochrome P450s metabolize endogenous compounds and xenobiotics, many of which ameliorate inflammation, whereas damage-associated molecular pattern molecules and pathogen-associated molecular pattern molecules alone and together amplify the cytokine production leading to the inflammatory multiple organ dysfunction syndrome response. Genetic and environmental factors can impede inflammation resolution in children with a spectrum of multiple organ dysfunction syndrome pathobiology phenotypes. Thrombocytopenia-associated multiple organ dysfunction syndrome patients have extensive endothelial activation and thrombotic microangiopathy with associated oligogenic deficiencies in inhibitory complement and a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13. Sequential multiple organ dysfunction syndrome patients have soluble Fas ligand-Fas-mediated hepatic failure with associated oligogenic deficiencies in perforin and granzyme signaling. Immunoparalysis-associated multiple organ dysfunction syndrome patients have impaired ability to resolve infection and have associated environmental causes of lymphocyte apoptosis. These inflammation phenotypes can lead to macrophage activation syndrome. Resolution of multiple organ dysfunction syndrome requires elimination of the source of inflammation. Full recovery of organ functions is noted 6-18 weeks later when epithelial, endothelial, mitochondrial, and immune cell regeneration and reprogramming is completed.
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Cairo MS, Pinkerton R. Childhood, adolescent and young adult non-Hodgkin lymphoma: state of the science. Br J Haematol 2016; 173:507-30. [DOI: 10.1111/bjh.14035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mitchell S. Cairo
- Department of Pediatrics, Medicine, Pathology, Microbiology & Immunology and Cell Biology & Anatomy; New York Medical College; Valhalla NY USA
| | - Ross Pinkerton
- Department of Oncology; Children's Health Queensland; Brisbane Australia
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