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Hwang CS, MacConmara M, Dick AAS. Use of DCD organs: Expanding the donor pool to increase pediatric transplantation. Pediatr Transplant 2023; 27 Suppl 1:e14234. [PMID: 35098637 DOI: 10.1111/petr.14234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/06/2021] [Accepted: 01/03/2022] [Indexed: 01/24/2023]
Abstract
The number of children being listed for transplant continues to be greater than the number of available organs. In fact, over the past decade, rates of liver and kidney transplants in pediatric transplantation are essentially unchanged (Am J Transplant. 2020;20:193 and Am J Transplant. 2020;20:20). The use of DCD donors offers a potential solution to organ scarcity; however, the use of DCD organs in pediatric transplantation remains a rare event. Pediatric transplants done using carefully chosen DCD donor organs have shown to have outcomes similar to those seen with the use of donation after brain death (DBD) donors. Herein, we review the literature to examine the utilization of DCD livers and kidneys, outcomes of these allografts, and assess if DCD organs are a viable method to increase organ availability in pediatric transplantation.
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Affiliation(s)
- Christine S Hwang
- Division of Surgical Transplantation, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.,Division of Pediatric Transplantation, Children's Medical Center, Dallas, Texas, USA
| | - Malcolm MacConmara
- Division of Surgical Transplantation, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.,Division of Pediatric Transplantation, Children's Medical Center, Dallas, Texas, USA
| | - André A S Dick
- Department of Surgery, University of Washington, Seattle, Washington, USA.,Department of Surgery, Seattle Children's Hospital, Seattle, Washington, USA
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2
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Donation after Circulatory Death Liver Transplantation in Paediatric Recipients. TRANSPLANTOLOGY 2022. [DOI: 10.3390/transplantology3010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Waiting list mortality together, with limited availability of organs, are one of the major challenges in liver transplantation (LT). Especially in the paediatric population, another limiting factor is the scarcity of transplantable liver grafts due to additional concerns regarding graft size matching. In adults, donation after circulatory death (DCD) liver grafts have been used to expand the donor pool with satisfactory results. Although several studies suggest that DCD livers could also be used in paediatric recipients with good outcomes, their utilisation in children is still limited to a small number of reports. Novel organ perfusion strategies could be used to improve organ quality and help to increase the number of DCD grafts utilised for children. With the current manuscript, we present the available literature of LT using DCD grafts in paediatric recipients, discussing current challenges with the use of these livers in children and how machine perfusion technologies could be of impact in the future.
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Should We Be Utilizing More Liver Grafts From Pediatric Donation After Circulatory Death Donors? A National Analysis of the SRTR from 2002 to 2017. Transplantation 2021; 105:1998-2006. [PMID: 32947583 DOI: 10.1097/tp.0000000000003458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Rates of withdrawal of life-sustaining treatment are higher among critically ill pediatric patients compared to adults. Therefore, livers from pediatric donation after circulatory death (pDCD) could improve graft organ shortage and waiting time for listed patients. As knowledge on the utilization of pDCD is limited, this study used US national registry data (2002-2017) to estimate the prognostic impact of pDCD in both adult and pediatric liver transplant (LT). METHODS In adult LT, the short-term (1-year) and long-term (overall) graft survival (GS) between pDCD and adult donation after circulatory death (aDCD) grafts was compared. In pediatric LT, the short- and long-term prognostic outcomes of pDCD were compared with other type of grafts (brain dead, split, and living donor). RESULTS Of 80 843 LTs in the study, 8967 (11.1%) were from pediatric donors. Among these, only 443 were pDCD, which were utilized mainly in adult recipients (91.9%). In adult recipients, short- and long-term GS did not differ significantly between pDCD and aDCD grafts (hazard ratio = 0.82 in short term and 0.73 in long term, both P > 0.05, respectively). Even "very young" (≤12 y) pDCD grafts had similar GS to aDCD grafts, although the rate of graft loss from vascular complications was higher in the former (14.0% versus 3.6%, P < 0.01). In pediatric recipients, pDCD grafts showed similar GS with other graft types whereas waiting time for DCD livers was significantly shorter (36.5 d versus 53.0 d, P < 0.01). CONCLUSIONS Given the comparable survival seen to aDCDs, this data show that there is still much scope to improve the utilization of pDCD liver grafts.
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Donation after Circulatory Death in Paediatric Liver Transplantation: Current Status and Future Perspectives in the Machine Perfusion Era. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1756069. [PMID: 29744353 PMCID: PMC5878911 DOI: 10.1155/2018/1756069] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 02/14/2018] [Indexed: 02/06/2023]
Abstract
Efforts have been made by the transplant community to expand the deceased donor pool in paediatric liver transplantation (LT). The growing experience on donation after circulatory death (DCD) for adult LT has encouraged its use also in children, albeit in selective cases, opening new perspectives for paediatric patients. Even though there has recently been a slight increase in the number of DCD livers transplanted in children, with satisfactory graft and patient outcomes, the use of DCD grafts in paediatric recipients is still controversial due to morbid outcomes associated with DCD grafts. In this context, recent advances in the optimization of donor support by extracorporeal membrane oxygenation and in the graft preservation by liver machine perfusion could find application in order to expand the donor pool in paediatric LT. In the present study we review the current literature on DCD liver grafts transplanted in children and on the use of extracorporeal donor support and liver perfusion machines in paediatrics, with the aim of defining the current status and future perspectives of paediatric LT.
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Iyer A, Chew HC, Gao L, Villanueva J, Hicks M, Doyle A, Kumarasinghe G, Jabbour A, Jansz PC, Feneley MP, Harvey RP, Graham RM, Dhital KK, Macdonald PS. Pathophysiological Trends During Withdrawal of Life Support: Implications for Organ Donation After Circulatory Death. Transplantation 2017; 100:2621-2629. [PMID: 27861290 DOI: 10.1097/tp.0000000000001396] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Donation after circulatory death (DCD) provides an alternative pathway to deceased organ transplantation. Although clinical DCD lung, liver, and kidney transplantation are well established, transplantation of hearts retrieved from DCD donors has reached clinical translation only recently. Progress has been limited by concern regarding the viability of DCD hearts. The aim of this study was to document the pathophysiological changes that occur in the heart and circulation during withdrawal of life (WLS) support. METHODS In a porcine asphyxia model, we characterized the hemodynamic, volumetric, metabolic, biochemical, and endocrine changes after WLS for up to 40 minutes. Times to circulatory arrest and electrical asystole were recorded. RESULTS After WLS, there was rapid onset of profound hypoxemia resulting in acute pulmonary hypertension and right ventricular distension. Concurrently, progressive systemic hypotension occurred with a fall in left atrial pressure and little change in left ventricular volume. Mean times to circulatory arrest and electrical asystole were 8 ± 1 and 16 ± 2 minutes, respectively. Hemodynamic changes were accompanied by a rapid fall in pH, and rise in blood lactate, troponin-T, and potassium. Plasma noradrenaline and adrenaline levels rose rapidly with dramatic increases in coronary sinus levels indicative of myocardial release. CONCLUSIONS These findings provide insight into the nature and tempo of the damaging events that occur in the heart and in particular the right ventricle during WLS, and give an indication of the limited timeframe for the implementation of potential postmortem interventions that could be applied to improve organ viability.
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Affiliation(s)
- Arjun Iyer
- 1 The Victor Chang Cardiac Research Institute, Sydney, Australia. 2 Heart & Lung Transplant Unit, St Vincent's Hospital, Darlinghurst, Australia. 3 Department of Cardiothoracic Surgery, St Vincent's Hospital, Darlinghurst, Australia. 4 Department of Clinical Pharmacology, St Vincent's Hospital, Darlinghurst, Australia. 5 Department of Physiology and Pharmacology, University of New South Wales, Randwick, Australia. 6 Department of Cardiology, St Vincent's Hospital, Darlinghurst, Australia. 7 St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Kensington, Australia. 8 School of Biotechnology and Biomolecular Science, Faculty of Science, University of New South Wales, Kensington, Australia
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6
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Long-term results after transplantation of pediatric liver grafts from donation after circulatory death donors. PLoS One 2017; 12:e0175097. [PMID: 28426684 PMCID: PMC5398496 DOI: 10.1371/journal.pone.0175097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 02/28/2017] [Indexed: 01/17/2023] Open
Abstract
Background Liver grafts from donation after circulatory death (DCD) donors are increasingly accepted as an extension of the organ pool for transplantation. There is little data on the outcome of liver transplantation with DCD grafts from a pediatric donor. The objective of this study was to assess the outcome of liver transplantation with pediatric DCD grafts and to compare this with the outcome after transplantation of livers from pediatric donation after brain death (DBD) donors. Method All transplantations performed with a liver from a pediatric donor (≤16 years) in the Netherlands between 2002 and 2015 were included. Patient survival, graft survival, and complication rates were compared between DCD and DBD liver transplantation. Results In total, 74 liver transplantations with pediatric grafts were performed; twenty (27%) DCD and 54 (73%) DBD. The median donor warm ischemia time (DWIT) was 24 min (range 15–43 min). Patient survival rate at 10 years was 78% for recipients of DCD grafts and 89% for DBD grafts (p = 0.32). Graft survival rate at 10 years was 65% in recipients of DCD versus 76% in DBD grafts (p = 0.20). If donor livers in this study would have been rejected for transplantation when the DWIT ≥30 min (n = 4), the 10-year graft survival rate would have been 81% after DCD transplantation. The rate of non-anastomotic biliary strictures was 5% in DCD and 4% in DBD grafts (p = 1.00). Other complication rates were also similar between both groups. Conclusions Transplantation of livers from pediatric DCD donors results in good long-term outcome especially when the DWIT is kept ≤30 min. Patient and graft survival rates are not significantly different between recipients of a pediatric DCD or DBD liver. Moreover, the incidence of non-anastomotic biliary strictures after transplantation of pediatric DCD livers is remarkably low.
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See WSQ, Chang KO, Cheuk DKL, Leung YYR, Chan GCF, Chan SC, Ha SY. Inhibitor development after liver transplantation in congenital factor VII deficiency. Haemophilia 2016; 22:e417-22. [PMID: 27501477 DOI: 10.1111/hae.13047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2016] [Indexed: 11/29/2022]
Abstract
Congenital factor VII (FVII) deficiency is the commonest type of the rare bleeding disorders. Very few cases of congenital FVII deficiency developed inhibitor and liver transplant is considered as definitive treatment. In the literature, twelve patients with congenital FVII deficiency developed inhibitors. Two had spontaneous resolution of inhibitors and one did not respond to high dose recombinant factor VIIa (rFVIIa) and died. Regarding liver transplant in congenital FVII patients, seven patients underwent liver transplant with good prognosis. We report a 5-year-old girl with confirmed severe congenital FVII deficiency since neonatal period. She suffered from recurrent intracranial bleeding despite rFVIIa replacement. After auxiliary liver transplant at the age of 4, she continued to show persistent deranged clotting profile and was found to have inhibitor towards FVII. Interestingly, she was still responsive to rFVIIa replacement.
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Affiliation(s)
- W-S Q See
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - K-O Chang
- Department of Paediatrics, Queen Elizabeth Hospital, Hong Kong, Special Administrative Region, China
| | - D K-L Cheuk
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - Y-Y R Leung
- Department of Pathology, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - G C-F Chan
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - S-C Chan
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - S-Y Ha
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China.
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8
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Abstract
OBJECTIVE Although pediatric donation after circulatory determination of death is increasing in frequency, there are no national or international donation after circulatory determination of death guidelines specific to pediatrics. This scoping review was performed to map the pediatric donation after circulatory determination of death literature, identify pediatric donation after circulatory determination of death knowledge gaps, and inform the development of national or regional pediatric donation after circulatory determination of death guidelines. DATA SOURCES Terms related to pediatric donation after circulatory determination of death were searched in Embase and MEDLINE, as well as the non-MEDLINE sources in PubMed from 1980 to May 2014. STUDY SELECTION Seven thousand five hundred ninety-seven references were discovered and 85 retained for analysis. All references addressing pediatric donation after circulatory determination of death were considered. Exclusion criteria were articles that did not address pediatric patients, animal or laboratory studies, surgical techniques, and local pediatric donation after circulatory determination of death protocols. Narrative reviews and opinion articles were the most frequently discovered reference (25/85) and the few discovered studies were observational or qualitative and almost exclusively retrospective. DATA EXTRACTION Retained references were divided into themes and analyzed using qualitative methodology. DATA SYNTHESIS The main discovered themes were 1) studies estimating the number of potential pediatric donation after circulatory determination of death donors and their impact on donation; 2) ethical issues in pediatric donation after circulatory determination of death; 3) physiology of the dying process after withdrawal of life-sustaining therapy; 4) cardiac pediatric donation after circulatory determination of death; and 5) neonatal pediatric donation after circulatory determination of death. Donor estimates suggest that pediatric donation after circulatory determination of death will remain an event less common than brain death, albeit with the potential to substantially expand the existing organ donation pool. Limited data suggest outcomes comparable with organs donated after neurologic determination of death. Although there is continued debate around ethical aspects of pediatric donation after circulatory determination of death, all pediatric donation after circulatory determination of death publications from professional societies contend that pediatric donation after circulatory determination of death can be practiced ethically. CONCLUSIONS This review provides a comprehensive overview of the published literature related to pediatric donation after circulatory determination of death. In addition to informing the development of pediatric-specific guidelines, this review serves to highlight several important knowledge gaps in this topic.
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Mohan N, Karkra S, Jolly AS, Vohra V, Mohanka R, Rastogi A, Soin AS. First living-related liver transplant to cure factor VII deficiency. Pediatr Transplant 2015; 19:E135-8. [PMID: 26152797 DOI: 10.1111/petr.12539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/13/2015] [Indexed: 01/20/2023]
Abstract
Congenital factor VII deficiency is an autosomal recessive serious disorder of blood coagulation with wide genotypic and phenotypic variations. The clinical presentation can vary from asymptomatic patients to patients with major bleedings in severe deficiency (factor VII <1%). Investigations show prolonged PT and low factor VII. Treatment modalities include FFP and repeated recombinant factor VII infusions. We hereby report the first successful LRLT for factor VII deficiency in an infant, the first-ever youngest baby reported worldwide. A six-month-old male child presented with easy bruisability, ecchymotic patches, hematuria, and convulsions. CT of the head showed subdural hemorrhage, which was treated conservatively. He had markedly increased PT (120 s) with normal platelets, and aPTT with factor VII level <1%. Despite the treatment by rFVIIa administration weekly, which was very expensive, he still had repeated life-threatening bleeding episodes. LRLT was performed with mother as the donor, whose factor VII level was 57%. A factor VII infusion plan for pre-, intra- and postoperative periods was formulated and TEG followed. Postoperatively, his factor VII started increasing from third day and was 38% on 24th day with PT <14 s. He had uneventful intraoperative and postoperative courses. LT is a safe and definite cure for factor VII deficiency.
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Affiliation(s)
- Neelam Mohan
- Department of Pediatric Gastroenterology, Hepatology and Liver Transplantation, Medanta the Medicity, Gurgaon, Haryana, India
| | - Sakshi Karkra
- Department of Pediatric Gastroenterology, Hepatology and Liver Transplantation, Medanta the Medicity, Gurgaon, Haryana, India
| | - Anu S Jolly
- Institute of Liver Transplant and Regenerative Medicine, Medanta the Medicity, Gurgaon, Haryana, India
| | - Vijay Vohra
- Institute of Liver Transplant and Regenerative Medicine, Medanta the Medicity, Gurgaon, Haryana, India
| | - Ravi Mohanka
- Institute of Liver Transplant and Regenerative Medicine, Medanta the Medicity, Gurgaon, Haryana, India
| | - Amit Rastogi
- Institute of Liver Transplant and Regenerative Medicine, Medanta the Medicity, Gurgaon, Haryana, India
| | - A S Soin
- Institute of Liver Transplant and Regenerative Medicine, Medanta the Medicity, Gurgaon, Haryana, India
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10
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Abstract
PURPOSE OF REVIEW This review considers the biliary complications associated with liver transplantation using donation after cardiac death (DCD) donor grafts. RECENT FINDINGS The increasing use of DCD liver grafts with their increased incidence of biliary complications is discussed. The ethics of this greater use is briefly analysed. Recent animal and human study evidence to support the peribiliary vascular plexus' role in ischaemic cholangiopathy is reviewed. Recent advances in in-vivo and ex-vivo perfusion are explored. In particular, the latest theories regarding perfusion's peribiliary plexus preserving effects and the mechanism by which biliary regeneration may be promoted as a consequence are discussed. SUMMARY This article explores the need for DCD liver graft use and the associated biliary complications. The current theories regarding the cause of DCD biliary complications are reviewed, as are the current strategies to reduce them.
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Acquazzino MA, Rush ET, Quiros Tejeira RE, Beck JC. Liver transplant for congenital factor VII deficiency. Pediatr Blood Cancer 2014; 61:1886-7. [PMID: 24585521 DOI: 10.1002/pbc.25008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 02/04/2014] [Indexed: 11/10/2022]
Abstract
Congenital factor VII (FVII) deficiency is a rare, autosomal recessive bleeding disorder with a spectrum of phenotypes ranging from asymptomatic to life-threatening intra-cranial hemorrhage (ICH). Orthotopic liver transplantation has been described for definitive treatment in a few patients with severe manifestations. We report a patient with congenital FVII deficiency and recurrent ICH, despite twice-weekly prophylaxis with recombinant activated FVII. At 17 months of age, he underwent an orthotopic liver transplant. He is now 1-year post-transplant, on maintenance immunosuppression with no hemorrhage or other complications.
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Affiliation(s)
- Melissa A Acquazzino
- Pediatric Hematology/Oncology/BMT, Medical College of Wisconsin, Milwaukee, Wisconsin
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Squires RH, Ng V, Romero R, Ekong U, Hardikar W, Emre S, Mazariegos GV. Evaluation of the pediatric patient for liver transplantation: 2014 practice guideline by the American Association for the Study of Liver Diseases, American Society of Transplantation and the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. Hepatology 2014; 60:362-98. [PMID: 24782219 DOI: 10.1002/hep.27191] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 04/22/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Robert H Squires
- Department of Pediatrics, University of Pittsburgh School of Medicine; Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA
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Le Dinh H, de Roover A, Kaba A, Lauwick S, Joris J, Delwaide J, Honoré P, Meurisse M, Detry O. Donation after cardio-circulatory death liver transplantation. World J Gastroenterol 2012; 18:4491-506. [PMID: 22969222 PMCID: PMC3435774 DOI: 10.3748/wjg.v18.i33.4491] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/27/2012] [Accepted: 03/29/2012] [Indexed: 02/06/2023] Open
Abstract
The renewed interest in donation after cardio-circulatory death (DCD) started in the 1990s following the limited success of the transplant community to expand the donation after brain-death (DBD) organ supply and following the request of potential DCD families. Since then, DCD organ procurement and transplantation activities have rapidly expanded, particularly for non-vital organs, like kidneys. In liver transplantation (LT), DCD donors are a valuable organ source that helps to decrease the mortality rate on the waiting lists and to increase the availability of organs for transplantation despite a higher risk of early graft dysfunction, more frequent vascular and ischemia-type biliary lesions, higher rates of re-listing and re-transplantation and lower graft survival, which are obviously due to the inevitable warm ischemia occurring during the declaration of death and organ retrieval process. Experimental strategies intervening in both donors and recipients at different phases of the transplantation process have focused on the attenuation of ischemia-reperfusion injury and already gained encouraging results, and some of them have found their way from pre-clinical success into clinical reality. The future of DCD-LT is promising. Concerted efforts should concentrate on the identification of suitable donors (probably Maastricht category III DCD donors), better donor and recipient matching (high risk donors to low risk recipients), use of advanced organ preservation techniques (oxygenated hypothermic machine perfusion, normothermic machine perfusion, venous systemic oxygen persufflation), and pharmacological modulation (probably a multi-factorial biologic modulation strategy) so that DCD liver allografts could be safely utilized and attain equivalent results as DBD-LT.
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14
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Levvey BJ, Harkess M, Hopkins P, Chambers D, Merry C, Glanville AR, Snell GI. Excellent clinical outcomes from a national donation-after-determination-of-cardiac-death lung transplant collaborative. Am J Transplant 2012; 12:2406-13. [PMID: 22823062 DOI: 10.1111/j.1600-6143.2012.04193.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Donation-after-Determination-of-Cardiac-Death (DDCD) donor lungs can potentially increase the pool of lungs available for Lung Transplantation (LTx). This paper presents the 5-year results for Maastricht category III DDCD LTx undertaken by the multicenter Australian National DDCD LTx Collaborative. The Collaborative was developed to facilitate interaction with the Australian Organ Donation Authority, standardization of definitions, guidelines, education and audit processes. Between 2006 and 2011 there were 174 actual DDCD category III donors (with an additional 37 potentially suitable donors who did not arrest in the mandated 90 min postwithdrawal window), of whom 71 donated lungs for 70 bilateral LTx and two single LTx. In 2010 this equated to an "extra" 28% of donors utilized for LTx. Withdrawal to pulmonary arterial flush was a mean of 35.2 ± 4.0 min (range 18-89). At 24 h, the incidence of grade 3 primary graft dysfunction was 8.5%[median PaO(2)/FiO(2) ratio 315 (range 50-507)]. Overall the incidence of grade 3 chronic rejections was 5%. One- and 5-year actuarial survival was 97% and 90%, versus 90% and 61%, respectively, for 503 contemporaneous brain-dead donor lung transplants. Category III DDCD LTx therefore provides a significant, practical, additional quality source of transplantable lungs.
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Affiliation(s)
- B J Levvey
- Lung Transplant Service, Department of Allergy, Immunology and Respiratory Medicine, Alfred Hospital and Monash University, Melbourne, Australia.
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Gelas T, Hartley J, Mirza DF, Muiesan P, Bowen C, Sharif K. Segmental ABO-incompatible liver graft from a donor after cardiac death in neonatal acute liver failure. Pediatr Transplant 2012; 16:E53-7. [PMID: 21790917 DOI: 10.1111/j.1399-3046.2011.01534.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Segmental liver grafts from DCD in pediatric LT have been safely used even in acute liver failure situations. Furthermore, despite the risk of antibody-mediated acute rejection, some studies have also demonstrated the safety of ABO incompatible LT in infants. The use of such grafts can be beneficial by reducing the time on the transplant waiting list but they are more susceptible to initial dysfunction and there is a lack of enthusiasm to consider their use especially for an emergency LT as a life-saving procedure. In this short article, we describe the use and successful outcome in a neonate with fulminant acute liver failure secondary to neonatal hemochromatosis who received an ABO-incompatible reduced-size DCD graft.
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Affiliation(s)
- Thomas Gelas
- Liver Unit, Birmingham Children's Hospital, Birmingham, UK.
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16
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Perera MTP, Bramhall SR. Current status and recent advances of liver transplantation from donation after cardiac death. World J Gastrointest Surg 2011; 3:167-76. [PMID: 22180833 PMCID: PMC3240676 DOI: 10.4240/wjgs.v3.i11.167] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 10/21/2011] [Accepted: 10/28/2011] [Indexed: 02/06/2023] Open
Abstract
The last decade saw increased organ donation activity from donors after cardiac death (DCD). This contributed to a significant proportion of transplant activity. Despite certain drawbacks, liver transplantation from DCD donors continues to supplement the donor pool on the backdrop of a severe organ shortage. Understanding the pathophysiology has provided the basis for modulation of DCD organs that has been proven to be effective outside liver transplantation but remains experimental in liver transplantation models. Research continues on how best to further increase the utility of DCD grafts. Most of the work has been carried out exploring the use of organ preservation using machine assisted perfusion. Both ex-situ and in-situ organ perfusion systems are tested in the liver transplantation setting with promising results. Additional techniques involved pharmacological manipulation of the donor, graft and the recipient. Ethical barriers and end-of-life care pathways are obstacles to widespread clinical application of some of the recent advances to practice. It is likely that some of the DCD offers are in fact probably “prematurely” offered without ideal donor management or even prior to brain death being established. The absolute benefits of DCD exist only if this form of donation supplements the existing deceased donor pool; hence, it is worthwhile revisiting organ donation process enabling us to identify counter remedial measures.
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Affiliation(s)
- M Thamara Pr Perera
- M Thamara PR Perera, Simon R Bramhall, The Liver Unit, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, United Kingdom
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Gozzini S, Perera MTPR, Mayer DA, Mirza DF, Kelly DA, Muiesan P, Sharif K. Liver transplantation in children using non-heart-beating donors (NHBD). Pediatr Transplant 2010; 14:554-7. [PMID: 20070562 DOI: 10.1111/j.1399-3046.2009.01280.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Selected livers from controlled NHBD are accepted for OLT in adults. Recent evidence has shown good medium-term outcome. The purpose of this study was to report our experience of pediatric OLT with whole and partial grafts from NHBD, analyzing complications and outcome. Retrospective review of all the recipients who underwent primary OLT between December 2005 and December 2008, using livers from NHBD. Four children (one male child) mean age was 9.5 yr (0.2-17), mean weight was 26 kg (range 2.6-48), underwent OLT using NHBD. Mean donor age was 14.2 yr, and mean WIT (systolic BP<50 mmHg to cold perfusion) 12.2 min (range 10-15). Two children received reduced grafts and two full grafts. Mean cold ischemia time was 7.18 h (range 6-8). Liver function tests one wk and nine months post-OLT confirmed a good graft function. One child was treated for two episodes of acute rejection. Post-transplant complications included two cases of mild ischemic cholangiopathy treated conservatively. Graft and patient survival was 100% with a mean follow-up of 19 months (range 8.1-43.4). Short- to medium-term follow-up suggests that liver grafts from young NHBD with short warm and cold ischemia times can be safely utilized in pediatric transplantation.
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Affiliation(s)
- S Gozzini
- The Liver Unit, Birmingham Children's Hospital, Birmingham, UK
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Bartlett A, Vara R, Muiesan P, Mariott P, Dhawan A, Mieli-Vergani G, Rela M, Heaton N. A single center experience of donation after cardiac death liver transplantation in pediatric recipients. Pediatr Transplant 2010; 14:388-92. [PMID: 20519017 DOI: 10.1111/j.1399-3046.2009.01206.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Many centers are now performing DCD adult LT. There has been a reluctance to transplant pediatric recipients with DCD livers due to concern over the medium to long-term outcome. We describe the outcome of 14 children (median age seven yr, 8 months-16 yr) that underwent LT with DCD grafts from July 2001 to December 2007. Donors had a median age of 23 yr (10-64), intensive care stay of five d (2-14) and bilirubin of 9 mmol/L (6-60). Median warm and cold ischemic time was 16 min (11-29) and seven h (5.5-8.4). Livers were transplanted as a whole organ (4), reduced graft (8), formal split (1) or auxiliary transplant (1). Compared to DBD recipients AST was significantly higher on the first three post-operative days and there was no difference in the INR, bilirubin or GGT out to 12 months. There were no biliary or vascular complications and patient and graft survival is 100% at a median follow-up of 41.8 months (1.7-74 months). LT with DCD grafts in pediatric recipients can be performed with low morbidity and excellent short-to-medium term patient and graft outcome.
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Affiliation(s)
- Adam Bartlett
- Institute of Liver Studies and Transplantation, King's College London School of Medicine at King's College Hospital NHS Foundation Trust, London, United Kingdom.
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20
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Yu SK, Kim GS, Chung JY. Anesthesia for liver transplantation from a maastricht category 4 non-heart-beating donor -A case report-. Korean J Anesthesiol 2010; 59 Suppl:S119-23. [PMID: 21286419 PMCID: PMC3030015 DOI: 10.4097/kjae.2010.59.s.s119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Revised: 09/18/2009] [Accepted: 09/24/2009] [Indexed: 11/10/2022] Open
Abstract
Great improvements in patient selection, surgical techniques, perioperative care, and immunosuppression have been made for the optimization of liver transplantation. To increase the number of organs available for liver transplantation, transplant centers have used marginal donors, split livers, living donors, or non-heart-beating donors (NHBDs). Despite recent enthusiasm for NHBDs in liver transplantation, warm ischemic injury to recovered organs has been an obstacle for the wide acceptance of NHBD. In the present case, we have conducted a liver transplantation from a Maastricht Category 4 NHBD. Warm ischemic time was 20 minutes and cold ischemic time was 5 hour 43 minutes. Consequently, the liver was successfully transplanted into the recipient.
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Affiliation(s)
- Sue Kyung Yu
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gaab Soo Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jun Young Chung
- Department of Anesthesiology and Pain Medicine, East-West Neo Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
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21
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Chaib E, Fridman C, Massad E. Potential effect of using ABO-compatible living-donor liver transplantation. Transplant Proc 2009; 41:3775-8. [PMID: 19917386 DOI: 10.1016/j.transproceed.2009.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2009] [Accepted: 05/20/2009] [Indexed: 10/20/2022]
Abstract
Liver transplantation increased 1.84-fold from 1988 to 2004. However, the number of patients on the waiting list for a liver increased 2.71-fold, from 553 to 1500. We used a mathematical equation to analyze the potential effect of using ABO-compatible living-donor liver transplantation (LDLT) on both our liver transplantation program and the waiting list. We calculated the prevalence distribution of blood groups (O, A, B, and AB) in the population and the probability of having a compatible parent or sibling for LDLT. The incidence of ABO compatibility in the overall population was as follows: A, 0.31; B, 0.133; O, 0.512; and AB, 0.04. The ABO compatibility for parent donors was blood group A, 0.174; B, 0.06; O, 0.152; and AB, 0.03; and for sibling donors was A, 0.121; B, 0.05; O, 0.354; and AB, 0.03. Use of LDLT can reduce the pressure on our liver transplantation waiting list by decreasing its size by at least 16.5% at 20 years after its introduction. Such a program could save an estimated 3600 lives over the same period.
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Affiliation(s)
- E Chaib
- Department of Gastroenterology, Hospital das Clinicas, University of São Paulo School of Medicine, São Paulo, Brazil.
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22
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Polak WG, Peeters PM, Slooff MJ. The evolution of surgical techniques in clinical liver transplantation. A review. Clin Transplant 2009; 23:546-64. [DOI: 10.1111/j.1399-0012.2009.00994.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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Editorial comment: life after transplantation. Curr Opin Organ Transplant 2009; 14:504-6. [PMID: 19644369 DOI: 10.1097/mot.0b013e328330b6a9] [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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Abstract
OBJECTIVES To determine the impact of a pediatric donation after cardiac death (DCD) program on organ donation. DESIGN Retrospective case series. SETTING A free-standing children's hospital. PATIENTS All ventilated pediatric intensive care unit patients who died between September 1, 2005 and April 30, 2007. INTERVENTIONS Institution of a DCD program. MEASUREMENTS AND MAIN RESULTS Data collected included clinical features, medical eligibility and consent for organ donation, as well as outcome for donation among eligible patients. One hundred ten patients who died in the pediatric intensive care unit and were treated with mechanical ventilation immediately before death were identified. Thirty-one patients met exclusion criteria, 26 patients were not referred, and 53 patients were evaluated for potential DCD by the organ procurement agency. The majority of patients had anoxia or trauma as their primary diagnosis. Family members initiated discussions regarding donation in 17% of evaluations. Sixty-eight percent of patients were deemed medically ineligible by the organ procurement agency. Of the 17 medically eligible patients, consent for donation was given in 9 cases (53%). Of these, 7 patients (41%) successfully donated; accounting for 37% of organ donors during the study period. Two families gave consent for donation which did not occur; one child did not die within the required time period and one could not be matched with any recipients. CONCLUSIONS Although a small percentage of dying patients are eligible for and will undergo DCD, such a program can markedly increase the number of organ donors at a children's hospital.
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Definitions of Warm Ischemic Time When Using Controlled Donation After Cardiac Death Lung Donors. Transplantation 2008; 86:1702-6. [DOI: 10.1097/tp.0b013e3181901f24] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
When transplantation started all organs were retrieved from patients immediately after cardio-respiratory arrest, i.e. from non heart-beating donors. After the recognition that death resulted from irreversible damage to the brainstem, organ retrieval rapidly switched to patients certified dead after brainstem testing. These heart-beating-donors have become the principal source of organs for transplantation for the last 30 years. The number of heart-beating-donors are declining and this is likely to continue, therefore cadaveric organs from non-heart-beating donor offers a large potential of resources for organ transplantation. The aim of this study is to examine clinical outcomes of non-heart-beating donors in the past 10 years in the UK as an way of decreasing pressure in the huge waiting list for organs transplantation.
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Affiliation(s)
- Eleazar Chaib
- Nuffield Department of Surgery, John Radcliffe Hospital, University of Oxford, Oxford, England.
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Zhao M, Muiesan P, Amiel SA, Srinivasan P, Asare-Anane H, Fairbanks L, Persaud S, Jones P, Jones J, Ashraf S, Littlejohn W, Rela M, Heaton N, Huang GC. Human islets derived from donors after cardiac death are fully biofunctional. Am J Transplant 2007; 7:2318-25. [PMID: 17845565 DOI: 10.1111/j.1600-6143.2007.01937.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Islets from brain-dead donors (BDDs) are being used in the treatment of Type 1 diabetes. However, both donor numbers and islet survival are limited. We explored the clinical potential for islets from non-heart-beating donors (NHBDs), who have lower circulating cytokines, by comparing islets from 10 NHBDs against 12 identically-isolated islets from BDDs over the same time period. The quantity and quality of islets from NHBDs was good. NHBD yielded approximately 12.6% more islets than those of BDDs (505,000 +/- 84,230 vs. 400,970 +/- 172,430 islet equivalent number [IEQ]/pancreas, p = 0.01) with comparable viability. ATP and GTP contents were lower (6.026 +/- 3.076 vs. 18.105 +/- 7.8 nM/mg protein, p = 0.01 and 1.52 +/- 0.87 vs. 3.378 +/- 0.83 nM/mg protein, p = 0.04) and correlated negatively to warm ischemia time (R(2)= 0.8022 and R(2)= 0.7996, respectively). Islets from NHBDs took longer to control hyperglycemia in diabetic mice, but were equally able to sustain euglycemia. With a warm ischemia time (WIT) of <or=25 min, islets from NHBDs are at least as competent as islets from BDDs and should be suitable for clinical use.
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Affiliation(s)
- M Zhao
- Diabetes Research Group, King's College London School of Medicine, London, UK
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Kauffman HM, Rosendale JD, Taranto SE, McBride MA, Marks WH. Non–heart-beating donors (then) and donation after cardiac death (now). Transplant Rev (Orlando) 2007. [DOI: 10.1016/j.trre.2007.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Monbaliu D, Van Gelder F, Troisi R, de Hemptinne B, Lerut J, Reding R, de Ville de Goyet J, Detry O, De Roover A, Honore P, Donckier V, Gelin M, Ysebaert D, Aerts R, Coosemans W, Pirenne J. Liver transplantation using non-heart-beating donors: Belgian experience. Transplant Proc 2007; 39:1481-4. [PMID: 17580167 DOI: 10.1016/j.transproceed.2007.02.077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2006] [Accepted: 02/05/2007] [Indexed: 12/12/2022]
Abstract
UNLABELLED Mortality on liver transplantation (OLT) waiting lists has increased dramatically. Until recently, non-heart-beating donors (NHBD) were not considered suitable for OLT, because of a higher risk of primary graft nonfunction (PNF) and biliary strictures. However, recent experimental/clinical evidence has indicated that NHBD-OLT is feasible when the period of warm ischemia is short. PURPOSE To characterize the results of NHBD-OLT in Belgium, a survey was sent to all Belgian OLT centers. RESULTS Between January 2003 and November 2005, 16 livers originating from NHBD were procured and transplanted. The mean donor age was 48.8 years, including 9 males and 7 females with mean time of stop-therapy to cardiac arrest being 18 minutes and from cardiac arrest to liver cold perfusion, 10.5 minutes. Mean recipient age was 52.2 years including 12 males and 4 females. Mean cold ischemia time was 7 hours 15 minutes. No PNF requiring re-OLT was observed. Mean post-OLT peak transaminase was 2209 IU/L, which was higher among imported versus locally procured grafts. Biliary complications occurred in 6 patients requiring re-OLT (n = 2), endoscopic treatment (n = 2), surgical treatment (n = 1), or left untreated (n = 1). These tended to be more frequent after prolonged warm ischemia. Graft and patient survivals were 62.5% and 81.3%, respectively, with a follow-up of 3 to 36 months. CONCLUSION This survey showed acceptable graft/patient survivals after NHBD-LT. The NHBD-liver grafts suffered a high rate of ischemic injury and biliary complications and therefore should be used carefully, namely with no additional donor risk factors, lower risk recipients, and short cold/warm ischemia.
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Affiliation(s)
- D Monbaliu
- Abdominal Transplant Surgery Department, University Hospitals Leuven, Herestraat 49, B-3000 Leuven, Belgium.
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Abt P, Kashyap R, Orloff M, Jain A, Tsoulfas G, Bozorgzadeh A, Olthoff K. Pediatric liver and kidney transplantation with allografts from DCD donors: A review of UNOS data. Transplantation 2007; 82:1708-11. [PMID: 17198264 DOI: 10.1097/01.tp.0000254762.95625.d0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Donation after cardiac death (DCD) is recognized as an important source of allografts to bridge the growing disequilibrium between the number of donors and recipients. Current transplant experience with DCD organs has focused on the adult recipient population, however little is known about the pediatric recipient experience. While there is increasing acceptance of these grafts in adults, transplant centers appear reluctant to use these grafts in the pediatric population. METHODS We reviewed the United Network for Organ Sharing database from 1995-2005 to determine the national experience with pediatric recipients of DCD organs. RESULTS Among 4026 renal transplants performed in children 18 years and younger, 26 (0.6%) received a renal allograft from a DCD donor. Ten (38.5%) received kidney allografts from pediatric donors (age < or = 18) and 16 (61.5%) from adult donors (age > 18 years). Graft survival at one and five years was 82.5%, 74.3% for kidneys from DCD donors compared to 89.6%, 64.8% from brain dead donors (DBD) (P = 0.7). Among 4991 liver transplants, 19 (0.4%) were from DCD donors. Sixteen patients (84.2%) received livers from pediatric donors and three (15.8%) from adult donors. Graft survival at one and five years was 89.2%, 79.3% for livers from DCD, compared to 75.6%, 65.8% for DBD (P = 0.3). CONCLUSION The use of DCD donors in the pediatric population is very limited; however graft survival is comparable to DBD grafts. Although pediatric centers may have been reluctant to utilize this donor source, this limited experience demonstrates that the select use of DCD organs can produce acceptable and durable graft survival in the pediatric population.
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Affiliation(s)
- Peter Abt
- Department of Surgery, Solid Organ Transplantation and Hepatobiliary Surgery Division, University of Rochester Medical Center, Rochester, NY 14642-8410, USA.
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Abstract
Liver transplantation (LT) is now a standard treatment for children with end-stage liver disease with excellent 1- and 5-year survival. This has been achieved through improvement of surgical techniques and anti-rejection treatment and management. The donor pool for children has been extended by the use of cut-down, split, living-related and, recently, non-heart-beating donor and isolated hepatocyte transplantation. Though the majority of transplanted children enjoy an excellent quality of life, there remain a high number of possible complications, including short-term primary non-function, vascular and biliary problems, bowel perforation, severe rejection, infection, hypertension and long-term renal impairment, chronic rejection, de novo autoimmunity, lymphoproliferative disease and cancer, most of which are related to anti-rejection drug toxicity. Hence, the focus of research for paediatric LT should be induction of tolerance, avoiding long-term immunosuppression and its toxicity.
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Affiliation(s)
- Paolo Muiesan
- Institute of Liver Studies, King's College London School of Medicine at King's College Hospital, Denmark Hill, London SE5 9RS, UK
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Dumortier J, Badet L, Boillot O. [Organ donors after cardiac death: what role do they play in liver transplantation?]. GASTROENTEROLOGIE CLINIQUE ET BIOLOGIQUE 2007; 31:175-9. [PMID: 17347627 DOI: 10.1016/s0399-8320(07)89351-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Affiliation(s)
- Jérôme Dumortier
- Unité de Transplantation Hépatique, Fédération des Spécialités Digestives, Hôpital Edouard Herriot, Lyon.
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Ischemia-reperfusion injury in transplantation: novel mechanisms and protective strategies. Transplant Rev (Orlando) 2007. [DOI: 10.1016/j.trre.2007.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Affiliation(s)
- Rahul Deshpande
- Kings College London School of Medicine at Kings College Hospital, Institute of Liver Studies, Denmark Hill, Camberwell, London SE5 9RS, UK
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