Journal of Transplantation最新文献

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The Living-Related Kidney Transplant Program in Brunei Darussalam: Lessons Learnt from a Nascent National Program in a Small, Muslim, and Asian Country. 文莱达鲁萨兰国与生存相关的肾脏移植项目:从一个亚洲穆斯林小国的新生国家项目中吸取的经验教训。
IF 2.5
Journal of Transplantation Pub Date : 2021-04-20 eCollection Date: 2021-01-01 DOI: 10.1155/2021/8828145
Jackson Tan, Muhammad Abdul Mabood Khalil, Dalinatul Ahmed, Jayakrishnan Pisharam, Chiao Yuen Lim, Hock Beng Chua, William Chong, Kim Khee Tan
{"title":"The Living-Related Kidney Transplant Program in Brunei Darussalam: Lessons Learnt from a Nascent National Program in a Small, Muslim, and Asian Country.","authors":"Jackson Tan,&nbsp;Muhammad Abdul Mabood Khalil,&nbsp;Dalinatul Ahmed,&nbsp;Jayakrishnan Pisharam,&nbsp;Chiao Yuen Lim,&nbsp;Hock Beng Chua,&nbsp;William Chong,&nbsp;Kim Khee Tan","doi":"10.1155/2021/8828145","DOIUrl":"https://doi.org/10.1155/2021/8828145","url":null,"abstract":"<p><p>Brunei Darussalam commenced its living-related renal transplant program in 2013, with subsequent attainment of independent local capacity and proficiency in 2019. The preliminary outcome from the program has already begun to shape the national nephrology landscape with a 36% increment in transplant rate and mitigation of commercialized transplantations. The blueprint for the program was first laid out in 2010 and thereupon executed in four phases. The first phase involved the gathering of evidence to support the establishment of the national program, through researches investigating feasibility, public opinion, quality of life, graft survival, and cost-effectiveness. The second phase focused on laying the foundation of the program through grooming of local expertise, implementation of legal-ethical frameworks, religious legitimization, and propagation of awareness. The third phase worked on facilitating experiential exposure and strengthening local infrastructure through the upgrading of facilities and the introduction of subsidiary services. The fourth phase was implemented in Brunei in 2013 when foreign personnel worked together with the local team to perform the transplants. Between 2013 and 2019, ten kidney transplants were performed, with two being done in 2018 and three in 2019. We hope to inspire other similar countries to develop their own self-sustainable and independent local program.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2021 ","pages":"8828145"},"PeriodicalIF":2.5,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8081633/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38895930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Treatment of Hepatitis C Post-Liver Transplantation Could Mitigate Discard Rates of Hepatitis C-Positive Deceased Donor Livers and Expand the Donor Pool. 肝移植后丙型肝炎的治疗可以降低丙型肝炎阳性死亡供体肝脏的丢弃率,扩大供体池。
IF 2.5
Journal of Transplantation Pub Date : 2021-01-25 eCollection Date: 2021-01-01 DOI: 10.1155/2021/6612453
Jennifer Keller, Gary Marklin, Obi Okoye, Roshani Desai, Tej Sura, Ajay Jain, Chintalapati Varma, Mustafa Nazzal
{"title":"Treatment of Hepatitis C Post-Liver Transplantation Could Mitigate Discard Rates of Hepatitis C-Positive Deceased Donor Livers and Expand the Donor Pool.","authors":"Jennifer Keller,&nbsp;Gary Marklin,&nbsp;Obi Okoye,&nbsp;Roshani Desai,&nbsp;Tej Sura,&nbsp;Ajay Jain,&nbsp;Chintalapati Varma,&nbsp;Mustafa Nazzal","doi":"10.1155/2021/6612453","DOIUrl":"https://doi.org/10.1155/2021/6612453","url":null,"abstract":"<p><strong>Background: </strong>Prior to 2014, treatment for hepatitis C was limited. However, the subsequent introduction of direct acting antiviral medications (DAA) against hepatitis C led to improvements in morbidity and better medication tolerance. DAA therapy allowed for an increase in treatment rates of hepatitis C in patients on the liver transplant waiting list. With the popularization of DAA, there became a growing concern about the utility of hepatitis C-positive (HCV+) deceased liver donors, especially after treating HCV+ potential recipients on the transplant waiting list.</p><p><strong>Methods: </strong>This is a retrospective, observational study using Mid-America Transplant Services (MTS) database from 2008 to 2017. Comparison was made before the widespread use of DAAs 2008-2013 (pre-DAA) against their common practice use 2014-2017 (post-DAA). All deceased liver donors with HCV antibody or nucleic acid positive results were evaluated.</p><p><strong>Results: </strong>Between 2008 and 2017, 96 deceased liver donors were positive for HCV. In the pre-DAA era, 47 deceased liver donors were positive for HCV, of which 32 (68.1%) were transplanted and 15 (31.9%) were discarded. In the post-DAA era, a total of 49 HCV+ organs were identified, out of which 43 (87.8%) livers were transplanted and 6 (12.2%) were discarded. Discard rate was significantly higher in the pre-DAA population (31.9% vs. 12.2%, <i>p</i> = 0.026). Secondary analysis showed a distinct trend towards increased regional sharing and utilization of HCV+ donors.</p><p><strong>Conclusion: </strong>In order to reduce discard rates of HCV+ patients, our data suggest that transplant centers could potentially delay HCV treatment in patients on the transplant waitlist.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2021 ","pages":"6612453"},"PeriodicalIF":2.5,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7850848/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25351312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Reversibility of Frailty after Lung Transplantation. 肺移植后虚弱的可逆性。
IF 2.5
Journal of Transplantation Pub Date : 2020-08-07 eCollection Date: 2020-01-01 DOI: 10.1155/2020/3239495
Elyn Montgomery, Peter S Macdonald, Phillip J Newton, Sungwon Chang, Kay Wilhelm, Sunita R Jha, Monique Malouf
{"title":"Reversibility of Frailty after Lung Transplantation.","authors":"Elyn Montgomery, Peter S Macdonald, Phillip J Newton, Sungwon Chang, Kay Wilhelm, Sunita R Jha, Monique Malouf","doi":"10.1155/2020/3239495","DOIUrl":"10.1155/2020/3239495","url":null,"abstract":"Background Frailty contributes to increased morbidity and mortality in patients referred for and undergoing lung transplantation (LTX). The study aim was to determine if frailty is reversible after LTX in those classified as frail at LTX evaluation. Methods Consecutive LTX recipients were included. All patients underwent modified physical frailty assessment during LTX evaluation. For patients assessed as frail, frailty was reassessed on completion of the post-LTX rehabilitation program. Frailty was defined by the presence of ≥ 3 domains of the modified Fried Frailty Phenotype (mFFP). Results We performed 166 lung transplants (frail patients, n = 27, 16%). Eighteen of the 27 frail patients have undergone frailty reassessment. Eight frail patients died, and one interstate recipient did not return for reassessment. In the 18 (66%) patients reassessed, there was an overall reduction in their frailty score post-LTX ((3.4 ± 0.6 to 1.0 ± 0.7), p < 0.001) with 17/18 (94%) no longer classified as frail. Improvements were seen in the following frailty domains: exhaustion, mobility, appetite, and activity. Handgrip strength did not improve posttransplant. Conclusions Physical frailty was largely reversible following LTX, underscoring the importance of considering frailty a dynamic, not a fixed, entity. Further work is needed to identify those patients whose frailty is modifiable and establish specific interventions to improve frailty.","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2020 ","pages":"3239495"},"PeriodicalIF":2.5,"publicationDate":"2020-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2020/3239495","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38313166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Sirtuin 1: A Dilemma in Transplantation. Sirtuin 1:移植中的困境。
IF 2.5
Journal of Transplantation Pub Date : 2020-04-25 eCollection Date: 2020-01-01 DOI: 10.1155/2020/9012980
Sara Assadiasl, Nuala Mooney, Bahareh Mohebbi, Yousef Fatahi, Narjes Soleimanifar
{"title":"Sirtuin 1: A Dilemma in Transplantation.","authors":"Sara Assadiasl,&nbsp;Nuala Mooney,&nbsp;Bahareh Mohebbi,&nbsp;Yousef Fatahi,&nbsp;Narjes Soleimanifar","doi":"10.1155/2020/9012980","DOIUrl":"https://doi.org/10.1155/2020/9012980","url":null,"abstract":"<p><p>Sirtuin 1, a member of sirtuin family of histone deacetylase enzymes, has been implicated in a variety of physiologic and pathologic events, including energy metabolism, cell survival, and age-related alterations. In view of the anti-inflammatory properties of sirtuin 1 along with its protective role in ischemia reperfusion injury, it might be considered as contributing to the promotion of transplantation outcome. However, the potential ability of sirtuin 1 to induce malignancies raises some concerns about its overexpression in clinic. Moreover, despite the findings of sirtuin 1 implication in thymic tolerance induction and T regulatory (Treg) cells survival, there is also evidence for its involvement in Treg suppression and in T helper 17 cells differentiation. The identification of sirtuin 1 natural and synthetic activators leads to the proposal of sirtuin 1 as an eligible target for clinical interventions in transplantation. All positive and negative consequences of sirtuin 1 overactivation/overexpression in the allograft should therefore be studied thoroughly. Herein, we summarize previous findings concerning direct and indirect influences of sirtuin 1 manipulation on transplantation.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2020 ","pages":"9012980"},"PeriodicalIF":2.5,"publicationDate":"2020-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2020/9012980","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37905904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Pretransplant Donor-Specific Anti-HLA Antibodies and the Risk for Rejection-Related Graft Failure of Kidney Allografts. 移植前供体特异性hla抗体与异体肾移植排斥相关移植失败的风险。
IF 2.5
Journal of Transplantation Pub Date : 2020-01-29 eCollection Date: 2020-01-01 DOI: 10.1155/2020/5694670
Michiel G H Betjes, Kasia S Sablik, Henny G Otten, Dave L Roelen, Frans H Claas, Annelies de Weerd
{"title":"Pretransplant Donor-Specific Anti-HLA Antibodies and the Risk for Rejection-Related Graft Failure of Kidney Allografts.","authors":"Michiel G H Betjes,&nbsp;Kasia S Sablik,&nbsp;Henny G Otten,&nbsp;Dave L Roelen,&nbsp;Frans H Claas,&nbsp;Annelies de Weerd","doi":"10.1155/2020/5694670","DOIUrl":"https://doi.org/10.1155/2020/5694670","url":null,"abstract":"<p><strong>Background: </strong>The presence of donor-specific antibodies (DSAs) against HLA before kidney transplantation has been variably associated with decreased long-term graft survival. Data on the relation of pretransplant DSA with rejection and cause of graft failure in recipients of donor kidneys are scarce.</p><p><strong>Methods: </strong>Patients transplanted between 1995 and 2005 were included and followed until 2016. Donor-specific antibodies before transplantation were determined retrospectively. For cause, renal transplant biopsies were reviewed.</p><p><strong>Results: </strong>Pretransplant DSAs were found in 160 cases on a total of 734 transplantations (21.8%). In 80.5% of graft failures, a diagnostic renal biopsy was performed. The presence of pretransplant DSA (DSApos) increased the risk of graft failure within the first 3 months after transplantation (5.2% vs. 9.4%) because of rejection with intragraft thrombosis (<i>p</i> < 0.01). One year after transplantation, DSApos recipients had an increased hazard for antibody-mediated rejection at 10 years (9% DSAneg vs. 15% DSApos, <i>p</i> < 0.01). One year after transplantation, DSApos recipients had an increased hazard for antibody-mediated rejection at 10 years (9% DSAneg vs. 15% DSApos, <i>p</i> < 0.01). One year after transplantation, DSApos recipients had an increased hazard for antibody-mediated rejection at 10 years (9% DSAneg vs. 15% DSApos.</p><p><strong>Conclusions: </strong>Pretransplant DSAs are a risk factor for early graft loss and increase the incidence for humoral rejection and graft loss but do not affect the risk for T cell-mediated rejection.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2020 ","pages":"5694670"},"PeriodicalIF":2.5,"publicationDate":"2020-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2020/5694670","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37678955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Type of Preservation Solution, UW or HTK, Has an Impact on the Incidence of Biliary Stricture following Liver Transplantation: A Retrospective Study. 保存液类型,UW或HTK对肝移植术后胆道狭窄发生率的影响:一项回顾性研究
IF 2.5
Journal of Transplantation Pub Date : 2019-12-21 eCollection Date: 2019-01-01 DOI: 10.1155/2019/8150736
Rojbin Karakoyun, Antonio Romano, Johan Nordström, Bo-Göran Ericzon, Greg Nowak
{"title":"Type of Preservation Solution, UW or HTK, Has an Impact on the Incidence of Biliary Stricture following Liver Transplantation: A Retrospective Study.","authors":"Rojbin Karakoyun,&nbsp;Antonio Romano,&nbsp;Johan Nordström,&nbsp;Bo-Göran Ericzon,&nbsp;Greg Nowak","doi":"10.1155/2019/8150736","DOIUrl":"https://doi.org/10.1155/2019/8150736","url":null,"abstract":"<p><p>Organ preservation plays a crucial role in the outcome following solid organ transplantation. The aim of this study was to perform a retrospective outcome analysis following liver transplantation using histidine tryptophan ketoglutarate (HTK) or the University of Wisconsin (UW) solutions for liver graft preservation. We retrospectively reviewed data on adult patients who were liver-transplanted at Karolinska University Hospital between 2007 and 2015. There was evaluation of donor and recipient characteristics, pre- and post-transplant blood chemistry tests, biliary and vascular complications, graft dysfunction and nonfunction, and patient and graft survivals. A total of 433 patients were included in the analyses, with 230 and 203 patients having received livers preserved with HTK and UW, respectively. Mean follow-up was 45 ± 29 months for the HTK group and 42.4 ± 26 for the UW group. There was no difference between the two groups either in terms of patient and graft survival, or of results of postoperative blood chemistry, or incidence of arterial complications, early allograft dysfunction, or primary graft nonfunction. However, the incidence of biliary stricture was higher in the UW group (22.7%) versus the HTK group (13.5%; <i>p</i>=0.013). Use of UW and HTK preservation solution in liver transplantation has no impact on patient and graft survival. However, use of HTK solution results in a lower incidence of posttransplant biliary stricture.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2019 ","pages":"8150736"},"PeriodicalIF":2.5,"publicationDate":"2019-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/8150736","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37540613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Endothelial Glycocalyx Shedding Occurs during Ex Vivo Lung Perfusion: A Pilot Study 体外肺灌注过程中内皮糖盏脱落的初步研究
IF 2.5
Journal of Transplantation Pub Date : 2019-08-25 DOI: 10.1155/2019/6748242
T. M. Sladden, S. Yerkovich, D. Wall, M. Tan, W. Hunt, J. Hill, I. Smith, P. Hopkins, D. Chambers
{"title":"Endothelial Glycocalyx Shedding Occurs during Ex Vivo Lung Perfusion: A Pilot Study","authors":"T. M. Sladden, S. Yerkovich, D. Wall, M. Tan, W. Hunt, J. Hill, I. Smith, P. Hopkins, D. Chambers","doi":"10.1155/2019/6748242","DOIUrl":"https://doi.org/10.1155/2019/6748242","url":null,"abstract":"Background Damage to the endothelium has been established as a key pathological process in lung transplantation and ex vivo lung perfusion (EVLP), a new technology that provides a platform for the assessment of injured donor lungs. Damage to the lung endothelial glycocalyx, a structure that lines the endothelium and is integral to vascular barrier function, has been associated with lung dysfunction. We hypothesised that endothelial glycocalyx shedding occurs during EVLP and aimed to establish a porcine model to investigate the mechanism underlying glycocalyx breakdown during EVLP. Methods Concentrations of endothelial glycocalyx breakdown products, syndecan-1, hyaluronan, heparan sulphate, and CD44, were measured using the ELISA and matrix metalloproteinase (MMP) activity by zymography in the perfusate of both human (n = 9) and porcine (n = 4) lungs undergoing EVLP. Porcine lungs underwent prolonged EVLP (up to 12 hours) with perfusion and ventilation parameters recorded hourly. Results During human EVLP, endothelial glycocalyx breakdown products in the perfusate increased over time. Increasing MMP-2 activity over time was positively correlated with levels of syndecan-1 (r = 0.886; p=0.03) and hyaluronan (r = 0.943; p=0.02). In the porcine EVLP model, hyaluronan was the only glycocalyx product detectable during EVLP (1 hr: 19 (13–84) vs 12 hr: 143 (109–264) ng/ml; p=0.13). Porcine hyaluronan was associated with MMP-9 activity (r = 0.83; p=0.02) and also with dynamic compliance (r = 0.57; p=0.03). Conclusion Endothelial glycocalyx products accumulate during both porcine and human EVLP, and this accumulation parallels an accumulation of matrix-degrading enzyme activity. Preliminary evidence in our porcine EVLP model suggests that shedding may be related to organ function, thus warranting additional study.","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2019 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2019-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/6748242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44970511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Corrigendum to "Islet β-Cell Mass Preservation and Regeneration in Diabetes Mellitus: Four Factors with Potential Therapeutic Interest". 《胰岛β-糖尿病患者的细胞群保存和再生:具有潜在治疗价值的四个因素》的更正。
IF 2.5
Journal of Transplantation Pub Date : 2019-06-02 eCollection Date: 2019-01-01 DOI: 10.1155/2019/3281921
Jose Manuel Mellado-Gil, Nadia Cobo-Vuilleumier, Benoit R Gauthier
{"title":"Corrigendum to \"Islet <i>β</i>-Cell Mass Preservation and Regeneration in Diabetes Mellitus: Four Factors with Potential Therapeutic Interest\".","authors":"Jose Manuel Mellado-Gil,&nbsp;Nadia Cobo-Vuilleumier,&nbsp;Benoit R Gauthier","doi":"10.1155/2019/3281921","DOIUrl":"https://doi.org/10.1155/2019/3281921","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1155/2012/230870.].</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2019 ","pages":"3281921"},"PeriodicalIF":2.5,"publicationDate":"2019-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/3281921","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37119917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Clinical Significance of Renal Allograft Protocol Biopsies: A Single Tertiary Center Experience in Malaysia. 异体肾移植方案活检的临床意义:马来西亚单一三级中心的经验。
IF 2.5
Journal of Transplantation Pub Date : 2019-05-02 eCollection Date: 2019-01-01 DOI: 10.1155/2019/9153875
Mei Sian Fu, Soo Jin Lim, Maisarah Jalalonmuhali, Kee Seong Ng, Soo Kun Lim, Kok Peng Ng
{"title":"Clinical Significance of Renal Allograft Protocol Biopsies: A Single Tertiary Center Experience in Malaysia.","authors":"Mei Sian Fu,&nbsp;Soo Jin Lim,&nbsp;Maisarah Jalalonmuhali,&nbsp;Kee Seong Ng,&nbsp;Soo Kun Lim,&nbsp;Kok Peng Ng","doi":"10.1155/2019/9153875","DOIUrl":"https://doi.org/10.1155/2019/9153875","url":null,"abstract":"<p><strong>Background: </strong>The role of protocol renal allograft biopsy in kidney transplantation is controversial due to the concern with procedural-related complications; however, its role is slowly evolving. Recent evidence suggests that protocol biopsy is useful in detecting subclinical renal pathology. Early recognition and treatment of renal pathologies can improve long-term outcomes of renal allografts.</p><p><strong>Methodology: </strong>A total of 362 renal allograft protocol biopsies were performed in adult recipients of kidney transplantation between 2012 and 2017. After excluding those with poor quality or those performed with a baseline serum creatinine level >200 umol/L, we analyzed 334 (92.3%) biopsies. Histology reports were reviewed and categorized into histoimmunological and nonimmunological changes. The immunological changes were subcategorized into the following: (1) no acute rejection (NR), (2) borderline changes (BC), and (3) subclinical rejection (SCR). Nonimmunological changes were subcategorized into the following: (1) chronicity including interstitial fibrosis/tubular atrophy (IFTA), chronic T-cell-mediated rejection (TCMR), unspecified chronic lesions, and arterionephrosclerosis, (2) de novo glomerulopathy/recurrence of primary disease (RP), and (3) other clinically unsuspected lesions (acute pyelonephritis, calcineurin inhibitors toxicity, postinfective glomerulonephritis, and BK virus nephropathy). Risk factors associated with SCR were assessed.</p><p><strong>Results: </strong>For the histoimmunological changes, 161 (48.2%) showed NR, 145 (43.4%) were BC, and 28 (8.4%) were SCR. These clinical events were more pronounced for the first 5 years; our data showed BC accounted for 59 (36.4%), 64 (54.2%), and 22 (40.7%) biopsies within <1 year, 1-5 years, and > 5 years, respectively (p = 0.011). Meanwhile, the incidence for SCR was 6 (3.7%) biopsies in <1 year, 18 (15.3%) in 1-5 years, and 4 (7.4%) in >5 years after transplantation (p=0.003). For the nonimmunological changes, chronicity, de novo glomerulopathy/RP, and other clinically unsuspected lesions were seen in 40 (12%), 10 (3%), and 12 (3.6%) biopsies, respectively. Living-related donor recipients were associated with decreased SCR (p=0.007).</p><p><strong>Conclusions: </strong>Despite having a stable renal function, our transplant recipients had a significant number of subclinical rejection on renal allograft biopsies.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2019 ","pages":"9153875"},"PeriodicalIF":2.5,"publicationDate":"2019-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/9153875","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37323266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A Prognostic Tool for Individualized Prediction of Graft Failure Risk within Ten Years after Kidney Transplantation. 肾移植术后10年内移植物衰竭风险个体化预测的预后工具。
IF 2.5
Journal of Transplantation Pub Date : 2019-04-08 eCollection Date: 2019-01-01 DOI: 10.1155/2019/7245142
Danko Stamenic, Annick Rousseau, Marie Essig, Philippe Gatault, Mathias Buchler, Matthieu Filloux, Pierre Marquet, Aurélie Prémaud
{"title":"A Prognostic Tool for Individualized Prediction of Graft Failure Risk within Ten Years after Kidney Transplantation.","authors":"Danko Stamenic,&nbsp;Annick Rousseau,&nbsp;Marie Essig,&nbsp;Philippe Gatault,&nbsp;Mathias Buchler,&nbsp;Matthieu Filloux,&nbsp;Pierre Marquet,&nbsp;Aurélie Prémaud","doi":"10.1155/2019/7245142","DOIUrl":"https://doi.org/10.1155/2019/7245142","url":null,"abstract":"<p><p>Identification of patients at risk of kidney graft loss relies on early individual prediction of graft failure. Data from 616 kidney transplant recipients with a follow-up of at least one year were retrospectively studied. A joint latent class model investigating the impact of serum creatinine (Scr) time-trajectories and onset of <i>de novo</i> donor-specific anti-HLA antibody (<i>dn</i>DSA) on graft survival was developed. The capacity of the model to calculate individual predicted probabilities of graft failure over time was evaluated in 80 independent patients. The model classified the patients in three latent classes with significantly different Scr time profiles and different graft survivals. Donor age contributed to explaining latent class membership. In addition to the SCr classes, the other variables retained in the survival model were proteinuria measured one-year after transplantation (HR=2.4, p=0.01), pretransplant non-donor-specific antibodies (HR=3.3, p<0.001), and <i>dn</i>DSA in patient who experienced acute rejection (HR=15.9, p=0.02). In the validation dataset, individual predictions of graft failure risk provided good predictive performances (sensitivity, specificity, and overall accuracy of graft failure prediction at ten years were 77.7%, 95.8%, and 85%, resp.) for the 60 patients who had not developed <i>dn</i>DSA. For patients with <i>dn</i>DSA individual risk of graft failure was not predicted with a so good performance.</p>","PeriodicalId":45795,"journal":{"name":"Journal of Transplantation","volume":"2019 ","pages":"7245142"},"PeriodicalIF":2.5,"publicationDate":"2019-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/7245142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37407538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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