1
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Byeman CJ, Harshman LA, Engen RM. Adult and late adolescent complications of pediatric solid organ transplantation. Pediatr Transplant 2024; 28:e14766. [PMID: 38682744 DOI: 10.1111/petr.14766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND There have been over 51 000 pediatric solid organ transplants since 1988 in the United States alone, leading to a growing population of long-term survivors who face complications of childhood organ failure and long-term immunosuppression. AIMS This is an educational review of existing literature. RESULTS Pediatric solid organ transplant recipients are at increased risk for risk for cardiovascular and kidney disease, skin cancers, and growth problems, though the severity of impact may vary by organ type. Pediatric recipients often are able to complete schooling, maintain a job, and form family and social networks in adulthood, though at somewhat lower rates than the general population, but face additional challenges related to neurocognitive deficits, mental health disorders, and discrimination. CONCLUSIONS Transplant centers and research programs should expand their focus to include long-term well-being. Increased collaboration between pediatric and adult transplant specialists will be necessary to better understand and manage long-term complications.
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Affiliation(s)
- Connor J Byeman
- University of Iowa Carver College of Medicine, Iowa, Iowa, USA
| | - Lyndsay A Harshman
- Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa, Iowa, USA
| | - Rachel M Engen
- University of Wisconsin Madison, Madison, Wisconsin, USA
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2
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Joshi D, Nayagam J, Clay L, Yerlett J, Claridge L, Day J, Ferguson J, Mckie P, Vara R, Pargeter H, Lockyer R, Jones R, Heneghan M, Samyn M. UK guideline on the transition and management of childhood liver diseases in adulthood. Aliment Pharmacol Ther 2024; 59:812-842. [PMID: 38385884 DOI: 10.1111/apt.17904] [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: 08/31/2023] [Revised: 10/15/2023] [Accepted: 02/03/2024] [Indexed: 02/23/2024]
Abstract
INTRODUCTION Improved outcomes of liver disease in childhood and young adulthood have resulted in an increasing number of young adults (YA) entering adult liver services. The adult hepatologist therefore requires a working knowledge in diseases that arise almost exclusively in children and their complications in adulthood. AIMS To provide adult hepatologists with succinct guidelines on aspects of transitional care in YA relevant to key disease aetiologies encountered in clinical practice. METHODS A systematic literature search was undertaken using the Pubmed, Medline, Web of Knowledge and Cochrane database from 1980 to 2023. MeSH search terms relating to liver diseases ('cholestatic liver diseases', 'biliary atresia', 'metabolic', 'paediatric liver diseases', 'autoimmune liver diseases'), transition to adult care ('transition services', 'young adult services') and adolescent care were used. The quality of evidence and the grading of recommendations were appraised using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. RESULTS These guidelines deal with the transition of YA and address key aetiologies for the adult hepatologist under the following headings: (1) Models and provision of care; (2) screening and management of mental health disorders; (3) aetiologies; (4) timing and role of liver transplantation; and (5) sexual health and fertility. CONCLUSIONS These are the first nationally developed guidelines on the transition and management of childhood liver diseases in adulthood. They provide a framework upon which to base clinical care, which we envisage will lead to improved outcomes for YA with chronic liver disease.
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Affiliation(s)
- Deepak Joshi
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Jeremy Nayagam
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Lisa Clay
- Paediatric Liver, GI and Nutrition service, King's College Hospital NHS Foundation Trust, London, UK
| | - Jenny Yerlett
- Paediatric Liver, GI and Nutrition service, King's College Hospital NHS Foundation Trust, London, UK
| | - Lee Claridge
- Leeds Liver Unit, St James's University Hospital, Leeds, UK
| | - Jemma Day
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - James Ferguson
- National Institute for Health Research, Birmingham Biomedical Research Centre, University of Birmingham, Birmingham, UK
| | - Paul Mckie
- Department of Social Work, King's College Hospital NHS Foundation Trust, London, UK
| | - Roshni Vara
- Paediatric Liver, GI and Nutrition service, King's College Hospital NHS Foundation Trust, London, UK
- Evelina London Children's Hospital, London, UK
| | | | | | - Rebecca Jones
- Leeds Liver Unit, St James's University Hospital, Leeds, UK
| | - Michael Heneghan
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Marianne Samyn
- Paediatric Liver, GI and Nutrition service, King's College Hospital NHS Foundation Trust, London, UK
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3
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Kasahara M, Sakamoto S. Optimal graft size in pediatric living donor liver transplantation: How are children different from adults? Pediatr Transplant 2023; 27:e14543. [PMID: 37243395 DOI: 10.1111/petr.14543] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
BACKGROUND Pediatric liver transplantation is an established treatment for end-stage liver disease in children. However, it is still posing relevant challenges, such as optimizing the graft selection according to the recipient size. Unlike adults, small children tolerate large-for-size grafts and insufficient graft volume might represent an issue in adolescents when graft size is disproportionate. METHODS Graft-size matching strategies over time were examined in pediatric liver transplantation. This review traces the measures/principles put in place to prevent large-for-size or small-for-size grafts in small children to adolescents with a literature review and an analysis of the data issued from the National Center for Child Health and Development, Tokyo, Japan. RESULTS Reduced left lateral segment (LLS; Couinaud's segment II and III) was widely applicable for small children less than 5 kg with metabolic liver disease or acute liver failure. There was significantly worse graft survival if the actual graft-to-recipient weight ratio (GRWR) was less than 1.5% in the adolescent with LLS graft due to the small-for-size graft. Children, particularly adolescents, may then require larger GRWR than adults to prevent small-for-size syndrome. The suggested ideal graft selections in pediatric LDLT are: reduced LLS, recipient body weight (BW) < 5.0 kg; LLS, 5.0 kg ≤ BW < 25 kg; left lobe (Couinaud's segment II, III, IV with middle hepatic vein), 25 kg ≤ BW < 50 kg; right lobe (Couinaud's segment V, VI, VII, VIII without middle hepatic vein), 50 kg ≤ BW. Children, particularly adolescents, may then require larger GRWR than adults to prevent small-for-size syndrome. CONCLUSION Age-appropriate and BW-appropriate strategies of graft selection are crucial to secure an excellent outcome in pediatric living donor liver transplantation.
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Affiliation(s)
- Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Seisuke Sakamoto
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
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4
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Vaisbourd Y, Dahhou M, Zhang X, Sapir-Pichhadze R, Cardinal H, Johnston O, Blydt-Hansen TD, Tibbles LA, Hamiwka L, Urschel S, Birk P, Bissonnette J, Matsuda-Abedini M, BScPhm JH, Schiff J, Phan V, De Geest S, Allen U, Avitzur Y, Mital S, Foster BJ. Differences in medication adherence by sex and organ type among adolescent and young adult solid organ transplant recipients. Pediatr Transplant 2023; 27:e14446. [PMID: 36478059 DOI: 10.1111/petr.14446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/26/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Identification of differences in medication adherence by sex or organ type may help in planning interventions to optimize outcomes. We compared immunosuppressive medication adherence between males and females, and between kidney, liver and heart transplant recipients. METHODS This multicenter study of prevalent kidney, liver and heart transplant recipients 14-25 years assessed adherence 3 times (0, 3, 6 months post-enrollment) with the BAASIS self-report tool. At each visit, participants were classified as adherent if they missed no doses in the prior 4 weeks and non-adherent otherwise. Adherence was also assessed using the coefficient of variation (CV) of tacrolimus trough levels; CV < 30% was classified as adherent. We used multivariable mixed effects logistic regression models adjusted for potential confounders to compare adherence by sex and by organ. RESULTS Across all visits, males (n = 150, median age 20.4 years, IQR 17.2-23.3) had lower odds of self-reported adherence than females (n = 120, median age 19.8 years, IQR 17.1-22.7) (OR 0.41, 95% CI 0.21-0.80) but higher odds of adherence by tacrolimus CV (OR 2.50, 95% CI 1.30-4.82). No significant differences in adherence (by self-report or tacrolimus CV) were noted between the 184 kidney, 58 liver, and 28 heart recipients. CONCLUSION Females show better self-reported adherence than males but greater variability in tacrolimus levels. Social desirability bias, more common in females than males, may contribute to better self-reported adherence among females. Higher tacrolimus variability among females may reflect biologic differences in tacrolimus metabolism between males and females rather than sex differences in adherence. There were no significant differences in adherence by organ type.
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Affiliation(s)
| | - Mourad Dahhou
- Research Institute of The McGill University Health Centre, Quebec, Canada
| | - Xun Zhang
- Research Institute of The McGill University Health Centre, Quebec, Canada
| | - Ruth Sapir-Pichhadze
- Research Institute of The McGill University Health Centre, Quebec, Canada.,Department of Medicine, McGill University, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Quebec, Canada
| | | | - Olwyn Johnston
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tom D Blydt-Hansen
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lee Anne Tibbles
- Department of Medicine and Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Lorraine Hamiwka
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Simon Urschel
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Patricia Birk
- Section of Pediatric Nephrology, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Mina Matsuda-Abedini
- Department of Pediatrics, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario, Canada
| | - Jennifer Harrison BScPhm
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada.,Ajmera Transplant Centre, Toronto General Hospital, Toronto, Ontario, Canada
| | - Jeffrey Schiff
- Ajmera Transplant Centre, Toronto General Hospital, Toronto, Ontario, Canada
| | | | - Sabina De Geest
- Department Public Health, Institute of Nursing Science, University of Basel, Basel, Switzerland.,Department of Primary Care and Public Health, Academic Center of Nursing and Midwifery, KU Leuven, Leuven, Belgium
| | - Upton Allen
- Department of Pediatrics, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario, Canada
| | - Yaron Avitzur
- Department of Pediatrics, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario, Canada
| | - Seema Mital
- Department of Pediatrics, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario, Canada
| | - Bethany J Foster
- Department of Pediatrics, McGill University, Quebec, Canada.,Research Institute of The McGill University Health Centre, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Quebec, Canada
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5
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Wildes DM, Costigan CS, Kinlough M, Flynn J, Dolan N, Riordan M, Sweeney C, Stack M, Waldron M, Walsh O, Gorman KM, Awan A. Transitional care models in adolescent kidney transplant recipients-a systematic review. Nephrol Dial Transplant 2023; 38:49-55. [PMID: 35554567 DOI: 10.1093/ndt/gfac175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Adolescence is a time of significant change for patients, guardians and clinicians. The paediatrician must ensure patients develop the necessary skills and knowledge required to transition and to function as an independent entity, with autonomy over their own care. The transfer from paediatric to adult care carries an increased risk of graft-related complications attributable to a multitude of reasons, particularly non-adherence to immunosuppressive medicines and poor attendance at scheduled appointments. This systematic review was conducted to ascertain the transitional care models available to clinicians caring for kidney transplant recipients and to compare the approach in each respective case. METHODS A systematic review was performed, in a methodology outlined by the PRISMA guidelines. OVID MEDLINE and EMBASE databases were searched for studies that outlined valid, replicable models pertaining to transitional care of paediatric kidney transplant recipients between 1946 and Quarter 3 of 2021. The reference lists of selected articles were also perused for further eligible studies and experts in the field were consulted for further eligible articles. Two investigators assessed all studies for eligibility and independently performed data extraction. Any discrepancies were settled by consensus. RESULTS A total of 1121 abstracts were identified, which was reduced to 1029 upon removal of duplicates. A total of 51 articles were deemed appropriate for full-text review and critical appraisal. A total of 12 articles that described models for transition pertaining to kidney transplant patients were included in qualitative synthesis. Every paper utilized a different transition model. All but one model included a physician and nurse at minimum in the transition process. The involvement of adult nephrologists, medical social work, psychology and psychiatry was variable. The mean age for the initiation of transition was 13.4 years (range: 10-17.5 years). The mean age at transfer to adult services was 18.3 years (range: 16-20.5 years). CONCLUSIONS Despite the well-established need for good transitional care for paediatric solid-organ transplant recipients, models tailored specifically for kidney transplant recipients are lacking. Further research and validation studies are required to ascertain the best method of providing effective transitional care to these patients. Transitional care should become a standardized process for adolescents and young adults with kidney transplants.
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Affiliation(s)
- Dermot Michael Wildes
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland
| | - Caoimhe S Costigan
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland
| | - Mairead Kinlough
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland
| | - Joan Flynn
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland
| | - Niamh Dolan
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatric Nephrology, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Michael Riordan
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatric Nephrology, Children's Health Ireland at Crumlin, Dublin, Ireland.,The Department of Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Clodagh Sweeney
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatric Nephrology, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Maria Stack
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatric Nephrology, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Mary Waldron
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatric Nephrology, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Orla Walsh
- The Department of Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland.,The Department of General Paediatrics, Children's Health Ireland at Temple St, Dublin, Ireland
| | - Kathleen M Gorman
- The Department of Neurology and Clinical Neurophysiology, Children's Health Ireland at Temple St, Dublin, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - Atif Awan
- The Department of Paediatric Nephrology & Transplantation, Children's Health Ireland at Temple St, Dublin, Ireland.,The Department of Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
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6
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Thomsen EL, Boisen KA, Hanghøj S, Hansson H, Grabow Scheelhardt HCV, Christensen ST, Esbensen BA. A comprehensive transfer program from pediatrics to adult care for parents of adolescents with chronic illness (ParTNerSTEPs): study protocol for a randomized controlled trial. Trials 2022; 23:1034. [PMID: 36539857 PMCID: PMC9768961 DOI: 10.1186/s13063-022-06997-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Previous research shows that adolescents with a chronic illness have more successful transfers to adult care if their parents are involved during the transition. However, there is a lack of structured and evaluated transfer programs for parents. Our aim will be to test a comprehensive transfer program for parents of adolescents with chronic illness during the transfer from pediatric to adult care and to evaluate the program's effectiveness, acceptability, and costs. METHODS The overall design for this protocol will be a randomized controlled trial. A total of 62 dyads consisting of an adolescent (age 16.5-17.5) and at least one parent will be recruited from one of four pediatric outpatient clinics (nephrology, hepatology, neurology, or rheumatology) at Copenhagen University Hospital - Rigshospitalet, Denmark. The dyads will be randomized to receive the transfer program in addition to usual care or to receive usual care only. The program includes an informative website, bi-annual online educational events, and transfer consultations across pediatric and adult care. Outcome measures will include transition readiness, allocation of responsibility, parental uncertainty level, and transfer satisfaction. Data will be collected from participants at baseline, every 6 months until transfer, at transfer, and 3 months after transfer. The parents' acceptance of and satisfaction with the program will be explored through semi-structured interviews. Cost, barriers, and facilitators affecting future implementation will be identified in interviews with health care professionals, using the Normalization Process Theory as a framework for the process analysis. DISCUSSION To our knowledge, this transfer program is one of the first interventions for parents of adolescents with a chronic illness during their child's transfer to adult care. Our trial will include parental and adolescent measures allowing us to examine whether a transfer program for parents will improve transfer to adult care for both parents and adolescents. We believe that results from our trial will be helpful in forming recommendations to ensure better involvement of parents in transitional care. TRIAL REGISTRATION ClinicalTrials.gov NCT04969328 . Retrospectively registered on 20 July 2021.
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Affiliation(s)
- Ena Lindhart Thomsen
- grid.475435.4Center of Adolescent Medicine, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Kirsten Arntz Boisen
- grid.475435.4Center of Adolescent Medicine, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Signe Hanghøj
- grid.475435.4Center of Adolescent Medicine, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Helena Hansson
- grid.475435.4Department of Paediatric and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 60B, 2100 Copenhagen, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Heidi-Christina V. Grabow Scheelhardt
- grid.475435.4Center of Adolescent Medicine, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Susanne Thing Christensen
- grid.475435.4Center of Adolescent Medicine, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Bente Appel Esbensen
- grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark ,grid.475435.4Copenhagen Center for Arthritis Research (COPECARE), Center of Rheumatology and Spine Disorders, Centre of Head and Orthopaedics, Copenhagen University Hospital – Rigshospitalet, Valdemar Hansens Vej 1, 2600 Glostrup, Denmark
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7
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Vinson AJ, Zhang X, Dahhou M, Süsal C, Döhler B, Sapir-Pichhadze R, Cardinal H, Melk A, Wong G, Francis A, Pilmore H, Foster BJ. Age-dependent Sex Differences in Graft Loss After Kidney Transplantation. Transplantation 2022; 106:1473-1484. [PMID: 34974454 DOI: 10.1097/tp.0000000000004026] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sex differences in kidney graft loss rates were reported in the United States. Whether these differences are present in other countries is unknown. METHODS We estimated the association between recipient sex and death-censored graft loss in patients of all ages recorded in the Scientific Registry of Transplant Recipients, Australia and New Zealand Dialysis and Transplant Registry, and Collaborative Transplant Study registries who received a first deceased donor kidney transplant (1988-2019). We used multivariable Cox regression models, accounting for the modifying effects of donor sex and recipient age, in each registry separately; results were combined using individual patient data meta-analysis. RESULTS We analyzed 438 585 patients. Young female patients 13-24 y old had the highest crude graft loss rates (female donor: 5.66; male donor: 5.50 per 100 person-years). Among young recipients of male donors, females showed higher graft loss risks than males (0-12 y: adjusted hazard ratio [aHR] 1.42, (95% confidence interval [CI], 1.17-1.73); 13-24 y: 1.24 (1.17-1.32); 25-44 y: 1.09 (1.06-1.13)). When the donor was female, there were no significant differences by recipient sex among those of age <45 y; however, the aHR for females was 0.93 (0.89-0.98) in 45-59 y-old and 0.89 (0.86-0.93) in ≥ 60 y-old recipients. Findings were similar for all 3 registries in most age intervals; statistically significant heterogeneity was seen only among 13-24-y-old recipients of a female donor (I2 = 71.5%, P = 0.03). CONCLUSIONS There is an association between recipient sex and kidney transplantation survival that is modified by recipient age and donor sex.
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Affiliation(s)
- Amanda J Vinson
- Nephrology Division, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Xun Zhang
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Mourad Dahhou
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Caner Süsal
- Institute of Immunology, Heidelberg University Hospital, Heidelberg, Germany
| | - Bernd Döhler
- Institute of Immunology, Heidelberg University Hospital, Heidelberg, Germany
| | - Ruth Sapir-Pichhadze
- Department of Medicine, Division of Experimental Medicine, McGill University, QC, Canada
| | - Heloise Cardinal
- Department of Medicine, Division of Nephrology, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Anette Melk
- Children's Hospital, Hannover Medical School, Hannover, Germany
| | - Germaine Wong
- School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Anna Francis
- School of Clinical Medicine, University of Queensland, QLD, Australia
- Department of Nephrology, Queensland Children's Hospital, Brisbane, Australia
| | - Helen Pilmore
- Department of Renal Medicine, Auckland City Hospital, Auckland, New Zealand
| | - Bethany J Foster
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada
- Department of Pediatrics, Division of Nephrology, McGill University Faculty of Medicine, QC, Canada
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8
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Thomsen EL, Esbensen BA, Hanghøj S, Hansson H, Boisen KA. Development of a complex intervention to support parents of adolescents with chronic illness transferring from pediatrics to adult care (ParTNerSTEPs). BMC Health Serv Res 2022; 22:485. [PMID: 35413976 PMCID: PMC9002046 DOI: 10.1186/s12913-022-07888-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Transition from pediatric to adult care for adolescents with chronic illness is associated with outpatient non-attendance and low treatment adherence in adolescents, and with anxiety and concerns among parents. Recent studies have shown that parent involvement results in better transitions. The aim of this paper was to describe the development, through participatory design, of a comprehensive transfer program targeted to parents of adolescents with chronic illness. METHODS The study was based on the UK Medical Research Council's (MRC) framework on developing and testing complex interventions. To increase the program's feasibility and relevance, participatory design was chosen as the overall method. A collaboration group of parents, young people and health care professionals (HCP) were actively involved in the development of the program. The program was developed in three development stages, in accordance with the MRC framework: 1) identifying the evidence base, 2) identifying theory, and 3) modelling process and outcomes. RESULTS Together with the collaboration group, we developed a comprehensive transfer program targeting parents, by undertaking an iterative process, involving a literature review, individual interviews, workshops and online brainstorms. The program, called ParTNerSTEPs (Parents in Transition - a Nurse-led Support and Transfer Educational Program) comprised three components: 1) an informative website, 2) online educational events for parents, and 3) transfer consultations with providers from both pediatrics and adult care. CONCLUSIONS The MRC framework was successfully applied to develop a comprehensive transfer program targeting parents of adolescents with chronic ilness. By incorporating the principles of participatory design in the development phase, we ensured that both parents' and adolescents' needs were represented and addressed in the program. TRIAL REGISTRATION ClinicalTrials.gov ID NCT04969328.
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Affiliation(s)
- Ena Lindhart Thomsen
- Department of Paediatrics and Adolescent Medicine, Center of Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen O, Denmark.
| | - Bente Appel Esbensen
- Copenhagen Center for Arthritis Research (COPECARE), Center of Rheumatology and Spine Disorders, Centre of Head and Orthopaedics, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 13-17, 2900, Glostrup, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Signe Hanghøj
- Department of Paediatrics and Adolescent Medicine, Center of Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen O, Denmark
| | - Helena Hansson
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
- Department of Paediatric and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 60B, 2100, Copenhagen, Denmark
| | - Kirsten Arntz Boisen
- Department of Paediatrics and Adolescent Medicine, Center of Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen O, Denmark
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9
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Foster BJ, Cardinal H, Sapir-Pichhadze R. Caution when using publicly available datasets. Am J Transplant 2022; 22:662-663. [PMID: 34390175 DOI: 10.1111/ajt.16799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 01/25/2023]
Affiliation(s)
- Bethany J Foster
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Pediatrics, McGill University, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Heloise Cardinal
- Département de Médecine, Université de Montréal, Montreal, Quebec, Canada.,Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Ruth Sapir-Pichhadze
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
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10
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Briggs G, Wallace D, Flasche S, Walker K, Cowling T, Heaton N, van der Meulen J, Samyn M, Joshi D. Inferior outcomes in young adults undergoing liver transplantation - a UK and Ireland cohort study. Transpl Int 2021; 34:2274-2285. [PMID: 34486751 DOI: 10.1111/tri.14033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/08/2021] [Accepted: 09/01/2021] [Indexed: 01/07/2023]
Abstract
Graft loss incidence is reported to be inversely related to recipient age. We used a national cohort of liver transplant (LT) recipients from the United Kingdom and Ireland to compare the age-dependent risk of graft failure in different post-transplantation time-periods ('epochs'). A cohort of first-time LT recipients (1995-2016) were identified (11 006). Cox regression was used to estimate hazard ratios (HR) comparing graft loss between age-groups (18-29, 30-39, 40-49, 50-59 and 60-76 years) and graft loss in different post-transplant epochs: 0-90 days, 90 days-2 years and 2-10 years. The risk of graft failure was highest in those transplanted between age 18 and 29 (adjusted HR 1.25, 95% CI: 1.00-1.57, P = 0.04) and in those aged 30-39 (adjusted HR 1.31, 95% CI: 1.11-1.55, P = 0.02). Graft failure in those under the age of 40 was similar in the first 90 days but worse 2-10 years' post-LT (18-29 years HR 1.36, 95% CI: 0.96-1.93, P < 0.001). Graft failure because of chronic rejection (CR) was more common in recipients aged 18-29 (P < 0.001). Adults transplanted between age 18 and 39 are at risk of late graft loss. CR is a concern for young adults (18-29 years). Our data highlights the need for specialist young adult services within adult healthcare.
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Affiliation(s)
- Gillian Briggs
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - David Wallace
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK.,Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Stefan Flasche
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Kate Walker
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Thomas Cowling
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Nigel Heaton
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Jan van der Meulen
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Marianne Samyn
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Deepak Joshi
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
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11
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Differences in Heart Graft Survival by Recipient Sex. Transplant Direct 2021; 7:e749. [PMID: 34514105 PMCID: PMC8425832 DOI: 10.1097/txd.0000000000001110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 11/08/2020] [Indexed: 11/27/2022] Open
Abstract
Supplemental Digital Content is available in the text. We aimed to characterize patterns of differences in heart graft failure rates by recipient sex, accounting for modifying effects of donor sex and recipient age.
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12
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Differences in Liver Graft Survival by Recipient Sex. Transplant Direct 2020; 6:e629. [PMID: 33204827 PMCID: PMC7665259 DOI: 10.1097/txd.0000000000001084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/26/2020] [Indexed: 11/26/2022] Open
Abstract
Supplemental Digital Content is available in the text. We aimed to characterize patterns of differences in liver graft failure rates by recipient sex, accounting for the modifying effects of donor sex and recipient age.
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13
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Takeda M, Sakamoto S, Irie R, Uchida H, Shimizu S, Yanagi Y, Abdelwahed MS, Fukuda A, Kasahara M. Late T cell-mediated rejection may contribute to poor outcomes in adolescents and young adults with liver transplantation. Pediatr Transplant 2020; 24:e13708. [PMID: 32333637 DOI: 10.1111/petr.13708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 01/31/2020] [Accepted: 03/10/2020] [Indexed: 12/23/2022]
Abstract
Although poor long-term graft survival in LT in AYA is recognized, detailed epidemiological data are still lacking. L-TCMR may have poor outcomes. This study aimed to provide a detailed, epidemiological assessment of the association between AYA age and rejection. L-TCMR was defined in this study as TCMR with central vein or perivenular inflammation occurring later than 3 months after LT. A total of 342 patients who survived for at least 3 months after LT between 2005 and 2015 were enrolled. The AYA group (10-24 years) was compared with the C group (less than 10 years), and the incidence and outcomes of L-TCMR were analyzed. In total, 342 patients had LT; 38 of these were AYA with the mean follow-up period of 6.7 years. A total of 304 patients in C group had a mean follow-up period of 6.3 years (P = .28). The incidence of L-TCMR in AYA group was significantly higher than in C group (15.8% vs 4.6%, P = .006). The time to L-TCMR after LT was significantly shorter in AYA group (P = .01). Neither patient survival nor the incidence of non-adherence differed significantly between the groups (P = .18 and P = .89). The number of additional immunosuppressants after L-TCMR was significantly higher in the AYA group (P = .04). A high incidence of L-TCMR was observed in AYA group irrespective of non-adherence. AYA patients with L-TCMR should be followed carefully due to the poor results of post-treatment biopsy and the need for intensive immunosuppressive therapy.
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Affiliation(s)
- Masahiro Takeda
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Seisuke Sakamoto
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Rie Irie
- Department of Pathology, National Center for Child Health and Development, Tokyo, Japan
| | - Hajime Uchida
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Seiichi Shimizu
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Yusuke Yanagi
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Mohamed Sami Abdelwahed
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Akinari Fukuda
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
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14
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Boucquemont J, Pai ALH, Dharnidharka VR, Hebert D, Zelikovsky N, Amaral S, Furth SL, Foster BJ. Association between day of the week and medication adherence among adolescent and young adult kidney transplant recipients. Am J Transplant 2020; 20:274-281. [PMID: 31507087 PMCID: PMC6940530 DOI: 10.1111/ajt.15590] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/30/2019] [Accepted: 08/11/2019] [Indexed: 01/25/2023]
Abstract
Disruption of usual routines may hinder adherence, increasing the risk of rejection. We aimed to compare weekend versus weekday medication adherence among adolescent and young adult kidney transplant recipients, hypothesizing poorer adherence on weekends. We examined data from the Teen Adherence in Kidney transplant Effectiveness of Intervention Trial (TAKE-IT). We assessed the 3-month run-in period (no intervention) and the 12-month intervention interval, considering a potential interaction between weekend/weekday and treatment group. Adherence was monitored using electronic pillboxes in participants 11-24 years followed in eight transplant centers in Canada and the United States. We used logistic regression with generalized estimating equations to estimate the association between weekends/weekdays and each of perfect taking (100% of prescribed doses taken) and timing (100% of prescribed doses taken on time) adherence. Taking (OR = 0.72 [95% CI 0.65-0.79]) and timing (OR = 0.66 [95% CI 0.59-0.74]) adherence were poorer on weekends than weekdays in the run-in (136 participants) and the intervention interval (taking OR = 0.74 [0.67-0.81] and timing OR = 0.71 [95% CI 0.65-0.77]). There was no interaction by treatment group (64 intervention and 74 control participants). Weekends represent a disruption of regular routines, posing a threat to adherence. Patients and families should be encouraged to develop strategies to maintain adherence when routines are disrupted. TAKE-IT registration number: Clinicaltrials.gov registration: NCT01356277 (May 17, 2011).
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Affiliation(s)
- Julie Boucquemont
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Ahna LH Pai
- Center for Adherence and Self-Management, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Ohio
| | - Vikas R Dharnidharka
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri,St. Louis Children’s Hospital, St. Louis, Missouri
| | - Diane Hebert
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nataliya Zelikovsky
- Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sandra Amaral
- Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania,Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Susan L Furth
- Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania,Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Bethany J Foster
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada,Department of Pediatrics, McGill University, Montreal, Quebec, Canada
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15
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Kincaide E, Hitchman K, Hall R, Yamaguchi I, Ding Y, Crowther B. Impact of active antibody-mediated rejection treatment on donor-specific antibodies in pediatric kidney transplant recipients. Pediatr Transplant 2019; 23:e13590. [PMID: 31617318 DOI: 10.1111/petr.13590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/17/2019] [Accepted: 09/01/2019] [Indexed: 01/06/2023]
Abstract
AMR is a major cause of graft loss after kidney transplantation. We evaluated a retrospective cohort of 13 pediatric kidney transplant patients diagnosed with active AMR. All 13 patients were treated with plasmapheresis (PP), IVIg, and rituximab. Anti-HLA DSAs were measured at the time of transplantation, AMR diagnosis, 30 days post-rejection treatment, 90 days post-rejection treatment, and 24 ± 12 months post-AMR. A total of 68 DSAs were identified from 13 patients at the time of active AMR diagnosis. The primary objective of this study was to differentiate treatment response rates between class I and class II anti-HLA DSA post-AMR treatment. Overall, DSAs were significantly reduced at 30 days, and the reduction was sustained at 90 days post-treatment, even for class II anti-HLA and strongly positive DSAs. A significant difference between class I and class II anti-HLA DSA was observed at 30 days; however, between class significance was lost at 90-day follow-up due to continued class II anti-HLA DSA treatment response. Low DSA strength was predictive of treatment response. eGFR demonstrated significant improvement 90 days after AMR diagnosis compared to the initial value at the time of AMR, and the effect was sustained for 12 months. These results suggest that the AMR treatment is effective in pediatric kidney transplant recipients with an early diagnosis of active AMR across both class I and class II anti-HLA DSAs.
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Affiliation(s)
- Elisabeth Kincaide
- Department of Pharmacotherapy and Pharmacy Services, University Health System, San Antonio, TX, USA.,University Transplant Center, University Health System, San Antonio, TX, USA.,Pharmacotherapy Education and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.,Pharmacotherapy Division, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Kelley Hitchman
- University Transplant Center, University Health System, San Antonio, TX, USA.,Histocompatibility and Immunogenetics Laboratory, University Health System, San Antonio, TX, USA.,Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Reed Hall
- Department of Pharmacotherapy and Pharmacy Services, University Health System, San Antonio, TX, USA.,University Transplant Center, University Health System, San Antonio, TX, USA.,Pharmacotherapy Education and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.,Pharmacotherapy Division, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Ikuyo Yamaguchi
- University Transplant Center, University Health System, San Antonio, TX, USA.,Department of Pediatrics, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Yanli Ding
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Barrett Crowther
- Ambulatory Care Pharmacy Services, University of Colorado Health, Aurora, CO, USA.,Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
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16
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Digital Wings: Innovations in Transition Readiness for Adolescent and Young Adult Transplant Recipients [corrected]. Transplantation 2019; 103:1970-1974. [PMID: 30985578 DOI: 10.1097/tp.0000000000002749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The Johns Hopkins University School of Medicine organized 2 multistakeholder symposia on February 2, 2018 and January 11, 2019 to address the problem of high graft failure in adolescent and young adult (AYA) solid organ transplant (SOT) recipients. Participants included international experts in transplantation, behavioral psychology, patient/parent advocacy, and technology. The objectives of the symposia were as follows: (1) to identify and discuss the barriers to and facilitators of effective transfer of care for AYA SOT recipients; (2) to actively explore strategies and digital solutions to promote their successful transfer of care; and (3) to develop meaningful partnerships for the successful development, evaluation, implementation, and dissemination of these digital solutions. Additionally, data were collected from 152 AYA SOT recipients demonstrating a substantial gap in how this population uses technologies for health-related activities, alongside an increased interest in an app to help them manage their transplant.
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17
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Duong SQ, Yabes JG, Teuteberg JJ, Shellmer DA, Feingold B. Pediatric heart transplantation at adult-specialty centers in the United States: A multicenter registry analysis. Am J Transplant 2018; 18:2175-2181. [PMID: 29758130 DOI: 10.1111/ajt.14930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 05/03/2018] [Accepted: 05/06/2018] [Indexed: 01/25/2023]
Abstract
Recent Organ Procurement and Transplantation Network bylaw revisions mandate that US transplant programs have an "approved pediatric component" in order to perform heart transplantation (HT) in patients <18 years old. The impact of this change on adolescents, a group known to be at high risk for graft loss and nonadherence, is unknown. We studied all US primary pediatric (age <18 years) HT from 2000 to 2015 to compare graft survival between centers organized mainly for adult versus pediatric care. Centers were designated as pediatric- or adult-specialty care according to the ratio of pediatric:adult HT performed and minimum age of HT (pediatric-specialty defined as ratio>0.7; adult-specialty ratio<0.05 and minimum age >8 years). In propensity score-matched cohorts, we observed no difference in graft loss by center type (median survival: adult 12.4 years vs pediatric 9.2 years, P = .174). Compared to the matched pediatric cohort, adult-specialty center recipients lived closer to their transplant center (31 vs 45 miles, P = .012), and trended toward fewer out-of-state transplants (15 vs 25%, P = .082). Our data suggest that select adolescents can achieve similar midterm graft survival at centers organized primarily for adult HT care. Regardless of post-HT setting, the development of care models that demonstrably improve adherence may be of greatest benefit to improving survival of this high-risk population.
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Affiliation(s)
- Son Q Duong
- Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jonathan G Yabes
- Clinical and Translational Science, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jeffrey J Teuteberg
- Heart and Vascular Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Diana A Shellmer
- Department of Pediatric Transplant Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Hillman Center for Pediatric Transplantation, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Brian Feingold
- Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Clinical and Translational Science, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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18
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Wightman A, Goldberg A, Diekema D. Fairness, severe intellectual disability, and the special case of transplantation. Pediatr Transplant 2018; 22:e13228. [PMID: 29785805 DOI: 10.1111/petr.13228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/18/2018] [Indexed: 11/27/2022]
Abstract
Children with severe intellectual disability have historically been excluded from solid organ transplantation. The purpose of this article was to review the arguments for excluding this population, including claims of poorer recipient and graft survival, a lower QoL as pediatric recipients become adults, and poorer outcomes for other, more deserving pediatric transplant candidates, and make the case that these arguments are no longer persuasive. We will argue that pediatric transplant centers for reasons of social justice, value of relationships, power differential, and fairness should generally not consider intellectual ability or disability as a criterion when making decisions regarding organ transplant eligibility.
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Affiliation(s)
- Aaron Wightman
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA.,Treuman Katz Center for Pediatric Bioethics, Seattle Children's Hospital, Seattle, WA, USA
| | - Aviva Goldberg
- Department of Pediatrics, University of Manitoba College of Medicine, Winnipeg, MB, Canada
| | - Douglas Diekema
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA.,Treuman Katz Center for Pediatric Bioethics, Seattle Children's Hospital, Seattle, WA, USA
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19
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Sayegh CS, Szmuszkovicz JR, Menteer J, Sherer S, Thomas D, Lestz R, Belzer M. Cell phone support to improve medication adherence among solid organ transplant recipients. Pediatr Transplant 2018; 22:e13235. [PMID: 29920879 DOI: 10.1111/petr.13235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/06/2018] [Indexed: 11/30/2022]
Abstract
For many adolescent and young adult solid organ transplant recipients, medication non-adherence is a mortal issue. This study investigated the feasibility, acceptability, and potential efficacy of a 12-week cell phone support intervention to improve immunosuppressant medication adherence. A small sample (N = 8) of non-adherent adolescent and young adult transplant recipients, aged 15-20.5 years, was enrolled. Cell phone support consisted of short calls each weekday including medication reminders, discussion of needs, problem-solving support, and promotion of clinic and community resources. Changes in adherence were measured by self-report and laboratory values, and intervention acceptability, adherence barriers, social support, depression, and substance use were assessed by self-report. Pre-post effect sizes showed medium-to-large improvements in adherence, lasting through a 12-week follow-up assessment. There were also small-to-medium changes in adherence barriers, social support, and depression. However, acceptability and feasibility were limited, due to a low rate of enrollment by eligible male participants. Cell phone support interventions may promote medication adherence among adolescents and young adults. Cell phone support warrants further investigation, including a randomized controlled trial to evaluate efficacy.
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Affiliation(s)
| | - Jacqueline R Szmuszkovicz
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Jondavid Menteer
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Sara Sherer
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Daniel Thomas
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Rachel Lestz
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Marvin Belzer
- Children's Hospital Los Angeles, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA
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20
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Tumin D, Black SM, Hayes D, Tobias JD. Self-management and liver allograft rejection in adolescence and beyond. J Pediatr 2018; 195:307. [PMID: 29426690 DOI: 10.1016/j.jpeds.2017.12.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/22/2017] [Indexed: 11/24/2022]
Affiliation(s)
- Dmitry Tumin
- Department of Pediatrics The Ohio State University College of Medicine; Department of Anesthesiology and Pain Medicine Nationwide Children's Hospital
| | | | - Don Hayes
- Departments of Pediatrics, Internal Medicine, and Surgery The Ohio State University College of Medicine; Section of Pulmonary Medicine Nationwide Children's Hospital
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine The Ohio State University College of Medicine; Department of Anesthesiology and Pain Medicine Nationwide Children's Hospital Columbus, Ohio
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21
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Kasahara M, Umeshita K, Sakamoto S, Fukuda A, Furukawa H, Sakisaka S, Kobayashi E, Tanaka E, Inomata Y, Kawasaki S, Shimada M, Kokudo N, Egawa H, Ohdan H, Uemoto S. Living donor liver transplantation for biliary atresia: An analysis of 2085 cases in the registry of the Japanese Liver Transplantation Society. Am J Transplant 2018; 18:659-668. [PMID: 28889651 DOI: 10.1111/ajt.14489] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 02/07/2023]
Abstract
Biliary atresia (BA) is the most common indication for liver transplantation (LT) in pediatric population. This study analyzed the comprehensive factors that might influence the outcomes of patients with BA who undergo living donor LT by evaluating the largest cohort with the longest follow-up in the world. Between November 1989 and December 2015, 2,085 BA patients underwent LDLT in Japan. There were 763 male and 1,322 female recipients with a mean age of 5.9 years and body weight of 18.6 kg. The 1-, 5-, 10-, 15-, and 20-year graft survival rates for the BA patients undergoing LDLT were 90.5%, 90.4%, 84.6%, 82.0%, and 79.9%, respectively. The donor body mass index, ABO incompatibility, graft type, recipient age, center experience, and transplant era were found to be significant predictors of the overall graft survival. Adolescent age (12 to <18 years) was associated with a significantly worse long-term graft survival rate than younger or older ages. We conclude that LDLT for BA is a safe and effective treatment modality that does not compromise living donors. The optimum timing for LT is crucial for a successful outcome, and early referral to transplantation center can improve the short-term outcomes of LT for BA. Further investigation of the major cause of death in liver transplanted recipients with BA in the long-term is essential, especially among adolescents.
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Affiliation(s)
- Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Koji Umeshita
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Seisuke Sakamoto
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Akinari Fukuda
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Hiroyuki Furukawa
- Department of Gastroentrologic and General Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Shotaro Sakisaka
- Department of Gastroenterology and Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Eiji Kobayashi
- Department of Organ Fabrication, Keio University School of Medicine, Tokyo, Japan
| | - Eiji Tanaka
- Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yukihiro Inomata
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Seiji Kawasaki
- Department of Hepatobiliary-Pancreatic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Mitsuo Shimada
- Department of Surgery, Tokushima University, Tokushima, Japan
| | - Norihiro Kokudo
- Department of Surgery, Graduate School of Medicine, Hepatobiliary Pancreatic Surgery Division, The University of Tokyo, Tokyo, Japan
| | - Hiroto Egawa
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences Institute of Biochemical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shinji Uemoto
- Department of Hepatobiliary-Pancreatic Surgery and Transplantation, Kyoto University, Kyoto, Japan
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22
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Foster BJ, Mitsnefes MM, Dahhou M, Zhang X, Laskin BL. Changes in Excess Mortality from End Stage Renal Disease in the United States from 1995 to 2013. Clin J Am Soc Nephrol 2018; 13:91-99. [PMID: 29242373 PMCID: PMC5753309 DOI: 10.2215/cjn.04330417] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 10/26/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Individuals with ESRD have a very high risk of death. Although mortality rates have decreased over time in ESRD, it is unknown if improvements merely reflect parallel increases in general population survival. We, therefore, examined changes in the excess risk of all-cause mortality-over and above the risk in the general population-among people treated for ESRD in the United States from 1995 to 2013. We hypothesized that the magnitude of change in the excess risk of death would differ by age and RRT modality. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We used time-dependent relative survival models including data from persons with incident ESRD as recorded in the US Renal Data System and age-, sex-, race-, and calendar year-specific general population mortality rates from the Centers for Disease Control and Prevention. We calculated relative excess risks (analogous to hazard ratios) to examine the association between advancing calendar time and the primary outcome of all-cause mortality. RESULTS We included 1,938,148 children and adults with incident ESRD from 1995 to 2013. Adjusted relative excess risk per 5-year increment in calendar time ranged from 0.73 (95% confidence interval, 0.69 to 0.77) for 0-14 year olds to 0.88 (95% confidence interval, 0.88 to 0.88) for ≥65 year olds, meaning that the excess risk of ESRD-related death decreased by 12%-27% over any 5-year interval between 1995 and 2013. Decreases in excess mortality over time were observed for all ages and both during treatment with dialysis and during time with a functioning kidney transplant (year by age and year by renal replacement modality interactions were both P<0.001), with the largest relative improvements observed for the youngest persons with a functioning kidney transplant. Absolute decreases in excess ESRD-related mortality were greatest for the oldest persons. CONCLUSIONS The excess risk of all-cause mortality among people with ESRD, over and above the risk in the general population, decreased significantly between 1995 and 2013 in the United States.
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Affiliation(s)
- Bethany J. Foster
- Research Institute of the McGill University Health Centre
- Division of Nephrology, Department of Pediatrics, and
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Mark M. Mitsnefes
- Division of Nephrology and Hypertension, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio; and
| | - Mourad Dahhou
- Research Institute of the McGill University Health Centre
| | - Xun Zhang
- Research Institute of the McGill University Health Centre
| | - Benjamin L. Laskin
- Division of Nephrology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
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23
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Abstract
Biliary atresia (BA) is an idiopathic neonatal cholangiopathy characterized by progressive inflammatory obliteration of the intrahepatic or extrahepatic bile ducts. Although the Kasai operation has dramatically improved the outcomes in children with BA, most patients with BA eventually require liver transplantation (LT) even after undergoing a successful Kasai procedure. The Japanese LT Society (JLTS) was established in 1980 to characterize and follow trends in patient characteristics and the graft survival among all liver transplant patients in Japan. The 1-, 5-, 10-, 15- and 20-year survival rates for the patients and grafts undergoing living donor LT were 91.6, 91.5, 87.1, 85.4 and 84.2 and 90.5, 90.4, 84.6, 82.0 and 79.9%, respectively. LDLT was able to be performed even in patients weighing less than 5 kg with early liver failure following a Kasai operation using a reduced left lateral segments. As LT has been revealed to increase the donor pool and decrease the waiting list mortality with an excellent long-term graft survival, early referral to a transplant center should be considered when at least one complication of cirrhosis occurs during its natural history, especially in adolescents.
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Disparities in Waitlist and Posttransplantation Outcomes in Liver Transplant Registrants and Recipients Aged 18 to 24 Years: Analysis of the UNOS Database. Transplantation 2017; 101:1616-1627. [PMID: 28230640 DOI: 10.1097/tp.0000000000001689] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND We evaluated liver transplantation waitlist and posttransplantation outcomes in those aged 18 to 24 years compared with both younger (0-17 years) and older (25-34 years) registrants and recipients. METHODS Using national data from the United Network for Organ Sharing, competing risk, Cox regression and Kaplan-Meier analyses were performed on first-time liver transplant registrants (n = 13 979) and recipients (n = 8718) ages 0 to 34 years between 2002 and 2015. RESULTS Nonstatus 1A registrants, registrants aged 0 to 17 and 25 to 34 years were less likely to experience dropout from the waiting list compared with those aged 18 to 24 years (adjusted hazard ratio, 0-5 years = 0.36; 6-11 = 0.29; 12-17 = 0.48; 18-24 = 1.00; 25-34 = 0.82). Although there was no difference in risk of graft failure across all age groups, both younger and older age groups had significantly lower risk of posttransplant mortality compared with those aged 18 to 24 years (adjusted hazard ratio, for 0-5 years = 0.53, 6-11 = 0.48, 12-17 = 0.70, 18-24 = 1.00, 25-34 = 0.77). This may be related to lower likelihood of retransplantation after graft failure in those aged 18 to 24 years. CONCLUSIONS This national registry study demonstrates for the first time poorer waitlist and postliver transplant outcomes in young adults ages 18 to 24 years at the time of listing and transplantation compared to older and younger age groups. Given the potential survival benefit in transplanting young adults and the shortage of solid organs for transplant, future studies are critical to identify and target modifiable risk factors to improve waitlist and long-term posttransplant outcomes in 18- to 24-year-old registrants and recipients.
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Lepeytre F, Dahhou M, Zhang X, Boucquemont J, Sapir-Pichhadze R, Cardinal H, Foster BJ. Association of Sex with Risk of Kidney Graft Failure Differs by Age. J Am Soc Nephrol 2017; 28:3014-3023. [PMID: 28592422 DOI: 10.1681/asn.2016121380] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 04/29/2017] [Indexed: 12/31/2022] Open
Abstract
Prior studies of sex differences in kidney graft survival showed conflicting results. We hypothesized that the association between recipient sex and kidney graft failure risk differs by recipient age and donor sex. We evaluated 159,417 patients recorded in the Scientific Registry of Transplant Recipients database who received a first deceased-donor kidney transplant (1995-2013). We used time-varying Cox models to estimate the association between recipient sex and death-censored graft failure. Models, stratified on donor sex and adjusted for potential confounders, included a recipient sex by current age interaction term. Among recipients of male donors, females of all ages had significantly higher graft failure risks than males (adjusted hazard ratios 0-14 years: 1.51 [95% confidence intervals 1.19 to 1.90]; 15-24 years: 1.37 [1.18 to 1.59]; 25-44 years: 1.14 [1.03 to 1.26]; 45 years: 1.05 [1.01 to 1.09]). Among recipients of female-donor grafts, only female recipients aged 15-24 years had a significantly higher graft failure risk than their male counterparts had (1.28 [1.06 to 1.53]). Indeed, female recipients aged ≥45 years had a significantly lower graft failure risk than their male counterparts had (0.95 [0.91 to 0.99]). These observations might be explained by the combined influence of several factors, including recognition of sex-determined minor histocompatibility antigens, influence of sex hormones on immune activation, sex- and age-related differences in medication adherence, and sex-related differences in body size. Additional studies should determine whether sex- and age-specific immunosuppression strategies are warranted for kidney graft recipients.
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Affiliation(s)
- Fanny Lepeytre
- Department of Medicine, Nephrology Division and Research Center, Centre Hospitalier de l'Université de Montréal, University of Montreal, Montreal, Quebec, Canada
| | - Mourad Dahhou
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Xun Zhang
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Julie Boucquemont
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and
| | - Ruth Sapir-Pichhadze
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and.,Departments of Medicine and
| | - Heloise Cardinal
- Department of Medicine, Nephrology Division and Research Center, Centre Hospitalier de l'Université de Montréal, University of Montreal, Montreal, Quebec, Canada
| | - Bethany J Foster
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; .,Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada; and.,Pediatrics, Division of Nephrology, McGill University Faculty of Medicine, Montreal, Quebec, Canada
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26
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Abstract
Excellent outcomes over the last 3 decades have made liver transplantation the treatment of choice for many advanced liver disorders. This success also opened liver transplantation to new indications such as liver tumors and metabolic disorders. The emergence of such new indications for liver transplantation is bringing a new stream of patients along with disease-specific challenges. The cumulative number of liver transplant recipients is peaking, requiring novel systems of health care delivery that meet the needs of this special patient population. This article reviews updates and new development in pediatric liver transplantation.
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Affiliation(s)
- Nidhi Rawal
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Maryland Medical Center, 22 South Green Street, Baltimore, MD 21201, USA
| | - Nada Yazigi
- Pediatric Transplant Hepatology, Department of Transplantation, MedStar Georgetown University Hospital, MedStar Georgetown Transplant Institute, PHC#2, 3800 Reservoir Road, Northwest, Washington, DC 20007, USA.
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27
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Paraskeva MA, Edwards LB, Levvey B, Stehlik J, Goldfarb S, Yusen RD, Westall GP, Snell GI. Outcomes of adolescent recipients after lung transplantation: An analysis of the International Society for Heart and Lung Transplantation Registry. J Heart Lung Transplant 2017; 37:323-331. [PMID: 28320631 DOI: 10.1016/j.healun.2017.02.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 12/22/2016] [Accepted: 02/15/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Recipient adolescent age for non-lung solid-organ transplantation is associated with higher rates of rejection, graft loss and mortality. Although there have been no studies specifically examining adolescent outcomes after lung transplantation (LTx), limited data from the International Society of Heart and Lung Transplantation (ISHLT) Registry suggest that a similar association may exist. Recently, adolescence has been defined as 10 to 24 years of age, taking into account the biologic and sociologic transitions that occur during this age interval. METHODS The ISHLT Registry was used to examine the survival outcomes of LTx recipients 10 to 24 years of age between 2005 and 2013. Given the developmental changes that occur in adolescence, survival outcomes for the tertiles of adolescence (10 to 14, 15 to 19 and 20 to 24 years old) were also examined. RESULTS Adolescents made up 9% (n = 2,319) of the 24,730 LTxs undertaken during the study period. Kaplan-Meier survival estimates at 3 years showed lower adolescent survival (65%) when compared with younger children (73%, p = 0.006) and adults 25 to 34 (75%, p < 0.00001) and 35 to 49 (71%, p < 0.00001) years of age, without a significant survival difference compared with those 50 to 65 years old. Critically, 15- to 19-year-old recipients had the poorest outcomes, with reduced 1-year survival (82%) compared with those 10 to 14 years old (88%, p = 0.02), and reduced 3-year survival (59%) compared with those 10 to 14 (73%, p < 0.00001) and 20 to 24 (66%, p < 0.0001) years old. CONCLUSIONS Adolescent LTx recipients have poorer overall survival when compared with younger children and adults, with those 15 to 19 years old having the highest risk of death. This survival disparity among age groups likely reflects the difficult period of adolescence and its biologic and social transitions, which may influence both immunologic function and adherence.
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Affiliation(s)
- Miranda A Paraskeva
- Lung Transplant Service, Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia.
| | - Leah B Edwards
- The International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas, USA; United Network for Organ Sharing, Richmond, Virginia, USA
| | - Bronwyn Levvey
- Lung Transplant Service, Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia; The International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas, USA
| | - Josef Stehlik
- The International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas, USA; United Network for Organ Sharing, Richmond, Virginia, USA
| | - Samuel Goldfarb
- The International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas, USA; Division of Pulmonary Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Roger D Yusen
- The International Society for Heart and Lung Transplantation Transplant Registry, Dallas, Texas, USA; Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Glen P Westall
- Lung Transplant Service, Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Greg I Snell
- Lung Transplant Service, Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia
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28
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The High-Risk Age Window After Pediatric Liver Transplantation: Modeling Allograft Loss Using Mathematical Tools. Transplantation 2015; 100:487-8. [PMID: 26569068 DOI: 10.1097/tp.0000000000001010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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