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Post-Transplant Lymphoproliferative Disorder Presenting as a Gastrointestinal Fistulous Tract in a Heart Transplant Recipient: Case Report and Literature Review. 一名心脏移植受者移植后出现胃肠道瘘管的淋巴组织增生性疾病:病例报告和文献综述。
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-08-30 DOI: 10.1016/j.transproceed.2024.07.008
Nour Hasan, Ramia Zakhour, Luz Helena Gutierrez Sanchez, Audrey R Lloyd, Geling Li, Clara L Ortiz, Cecelia Hutto
{"title":"Post-Transplant Lymphoproliferative Disorder Presenting as a Gastrointestinal Fistulous Tract in a Heart Transplant Recipient: Case Report and Literature Review.","authors":"Nour Hasan, Ramia Zakhour, Luz Helena Gutierrez Sanchez, Audrey R Lloyd, Geling Li, Clara L Ortiz, Cecelia Hutto","doi":"10.1016/j.transproceed.2024.07.008","DOIUrl":"10.1016/j.transproceed.2024.07.008","url":null,"abstract":"<p><p>We present a challenging case of Epstein-Barr virus-related isolated small bowel post-transplant lymphoproliferative disorder (PTLD) in a pediatric heart transplant recipient presenting as recurrent gastrointestinal (GI) bleeding and subsequently a GI fistulous tract with associated intra-abdominal abscess. Diagnosis was not confirmed until exploratory laparoscopy was performed, with excision of the fistulous tract revealing evidence of PTLD on pathology. Early diagnosis of GI-PTLD remains a challenge, especially if isolated in the small intestine. Diagnosis may rely on positron emission tomography/ computed tomography scan (PET/CT) or invasive intervention to obtain appropriate tissue samples for pathology diagnosis.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"2084-2091"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142116726","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: 0
The Effects of Two Kinds of Gargles on Oral Mucositis in Patients After Allogeneic Stem Cell Transplantation. 两种漱口水对异体干细胞移植后患者口腔黏膜炎的影响
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-29 DOI: 10.1016/j.transproceed.2024.10.023
Wei Hu, Hua Jiang, Ting Wang, Xiu-Juan Guo, Bei-Bei Zhang, Yan Song, Ce Shi, Xiao-Dong Xu, Lin-Nan Wang, Xin-Xin He, Bo-Ning Liu, Jun-Xiu Zhou, Ze-Yu Xue
{"title":"The Effects of Two Kinds of Gargles on Oral Mucositis in Patients After Allogeneic Stem Cell Transplantation.","authors":"Wei Hu, Hua Jiang, Ting Wang, Xiu-Juan Guo, Bei-Bei Zhang, Yan Song, Ce Shi, Xiao-Dong Xu, Lin-Nan Wang, Xin-Xin He, Bo-Ning Liu, Jun-Xiu Zhou, Ze-Yu Xue","doi":"10.1016/j.transproceed.2024.10.023","DOIUrl":"10.1016/j.transproceed.2024.10.023","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was to compare the effects of two kinds of gargles (Koushu & Koutai) on oral mucositis (OM) in patients with agranulocytosis.</p><p><strong>Methods: </strong>One hundred eighty patients who underwent allogeneic hematopoietic stem cell transplantation in the Peking University Institute of Hematology were enrolled from March 2018 to January 2019. The subjects were randomly divided into two groups by random number table. The observation group gargled with Koushu gargle, whereas the control group gargled with Koutai gargle. Patients in both groups used 10 to 15 mL of gargles for 2 minutes when awake in the morning, 30 minutes after each meal, and before sleep. The two groups used the same way to gargle except the types of gargle used. The difference of incidence, grade, healing time, and pain grade of oral mucositis were analyzed.</p><p><strong>Results: </strong>The incidence of oral mucositis in the observation group was significantly lower than that in the control group (P < .01).There were no significant difference in grade of OM, healing time, or pain grade between the two groups (P > .05). The effect of the Koushu gargle on the prevention of OM among the patients with agranulocytosis is better than that of the Koutai gargle. The Koushu gargle is better suited than the Koutai gargle as a prevention and treatment option for the patients.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"2027-2031"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549922","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: 0
Histopathologic Remission of Severe Diabetic Nephropathy of Donor Kidney After Kidney Transplantation: A Case Report. 肾移植后供体肾重度糖尿病肾病组织病理学缓解:病例报告。
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-29 DOI: 10.1016/j.transproceed.2024.10.002
Xue Li, Wei Wang, Jing Jiang, Dongrui Cheng, Jinsong Chen
{"title":"Histopathologic Remission of Severe Diabetic Nephropathy of Donor Kidney After Kidney Transplantation: A Case Report.","authors":"Xue Li, Wei Wang, Jing Jiang, Dongrui Cheng, Jinsong Chen","doi":"10.1016/j.transproceed.2024.10.002","DOIUrl":"10.1016/j.transproceed.2024.10.002","url":null,"abstract":"<p><p>Although diabetes is not an absolute contraindication for kidney donation, donor kidneys with severe diabetic nephropathy (DN) are frequently discarded. Current experience with the use of donor kidneys with severe DN is limited. Herein, we report a case of deceased donor kidney with Renal Pathology Society (RPS) classification scheme class III DN transplanted to a female recipient without postoperative hyperglycemia. Although kidney allograft biopsy still showed class III DN at 6 months, it turned to RPS class IIa DN combined with chronic antibody-mediated rejection at 4.5 years and 9 years. At the last follow-up approximately 10 years after transplantation, the patient's serum creatinine was 2.27 mg/dL. Our case indicates that with careful selection of potential recipients, favorable clinical outcomes can be achieved even with donor kidneys with severe DN. Thus, RPS class III diabetic donor kidneys deserve further evaluation and should not always be discarded.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"2055-2057"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549917","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: 0
BK Virus Nephropathy After Kidney Transplantation and Its Diagnosis Using Urinary Micro RNA. 肾移植后的 BK 病毒肾病及其尿微量 RNA 诊断
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-29 DOI: 10.1016/j.transproceed.2024.10.026
Yuki Nakamura, Tatsuya Chikaraishi, Yuhji Marui, Katsuyuki Miki, Takayoshi Yokoyama, Manabu Kamiyama, Yasuo Ishii
{"title":"BK Virus Nephropathy After Kidney Transplantation and Its Diagnosis Using Urinary Micro RNA.","authors":"Yuki Nakamura, Tatsuya Chikaraishi, Yuhji Marui, Katsuyuki Miki, Takayoshi Yokoyama, Manabu Kamiyama, Yasuo Ishii","doi":"10.1016/j.transproceed.2024.10.026","DOIUrl":"10.1016/j.transproceed.2024.10.026","url":null,"abstract":"<p><p>BK virus-associated nephritis (BKVAN) is an important cause of graft loss in renal transplant recipients B K viremia occurs in up to 30% of renal transplant recipients. Since the discovery of BKV in 1971, effective prophylaxis and treatment have not been established, and it is not uncommon for a transplant kidney to be lost without cure of BKVAN. BK virus infection is reactivated when cellular immunity is suppressed, which is often during the first year after kidney transplantation when cellular immunity is most suppressed. Clinically, it is caused by reactivation of latent infection or new infection from the donor kidney, leading to viremia, viremia, and transplant nephropathy. BK virus nephropathy is currently diagnosed definitively by measuring the amount of BK virus DNA in the blood and proving SV40-positive cells in transplant kidney tissue obtained by transplant kidney biopsy, but the time required for diagnosis and the low sensitivity of immunohistochemistry using antibodies are problematic. Therefore, we investigated whether the diagnosis of BK virus nephropathy could be made earlier by searching for miRNAs in the urine of renal transplant recipients.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"1967-1975"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549916","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: 0
C1q-Fixing De Novo Donor Specific Antibodies in Therapeutic Management of Chronic Antibody-Mediated Rejection Postkidney Transplantation. C1q-固定新供体特异性抗体在肾移植后慢性抗体相关排斥反应治疗中的应用
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-22 DOI: 10.1016/j.transproceed.2024.10.022
Masayuki Tasaki, Kazuhide Saito, Masahiro Ikeda, Yoshihiko Tomita
{"title":"C1q-Fixing De Novo Donor Specific Antibodies in Therapeutic Management of Chronic Antibody-Mediated Rejection Postkidney Transplantation.","authors":"Masayuki Tasaki, Kazuhide Saito, Masahiro Ikeda, Yoshihiko Tomita","doi":"10.1016/j.transproceed.2024.10.022","DOIUrl":"10.1016/j.transproceed.2024.10.022","url":null,"abstract":"<p><strong>Backgrounds: </strong>Evidence for C1q-fixing donor-specific antibodies (DSA) after chronic antibody-mediated rejection (CABMR) treatment is lacking. We investigated if C1q-DSA could predict therapy response in patients with biopsy-proven CABMR.</p><p><strong>Material and methods: </strong>Twenty kidney transplant patients with late-onset DSA were enrolled. Patients with biopsy-proven CABMR received three plasma pheresis sessions, one dose of rituximab (375 mg/m<sup>2</sup>), and steroid pulse therapy. We monitored IgG-DSA, C1q-DSA, and renal graft function for >2 years post-CABMR treatment. Patients with C1q-DSA mean fluorescence intensity (MFI) decreased by less than 50% post-treatment were classified as C1q-nonresponders. We compared Banff classification scores (g, ptc, cg, c4d) before and 6 months after treatment.</p><p><strong>Results: </strong>Fourteen (70%) of 20 patients were C1q-DSA positive. The MFIs of IgG-DSA and C1q-DSA before treatment were significantly higher in the C1q-DSA positive group than in the negative group, at 20,035 and 10,918 (P = .008) and 17,702 and 21 (P < .001), respectively. Fifteen patients (75%) were diagnosed with CABMR via biopsy, and 12 patients received rejection therapy. Five (41.7%) patients were C1q-responders and seven (58.3%) were C1q-nonresponders. The MFIs of C1q-DSA before treatment were not significantly different between the two groups (11,521 vs. 13,985). Renal graft function was stable after treatment in C1q-responders for 3 years. In contrast, renal graft function tended to deteriorate in C1q-nonresponders. Biopsy showed improvement in scores in 75% of C1q-responders while deterioration in scores in 42.9% of C1q-nonresponders.</p><p><strong>Conclusions: </strong>C1q-DSA may be a good predictor of outcomes after CABMR treatment.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"1961-1966"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515700","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: 0
Pulmonary Function in Pediatric Stem Cell Transplantation. 小儿干细胞移植中的肺功能。
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-28 DOI: 10.1016/j.transproceed.2024.10.013
Panuwat Srichaisawat, Jitladda Deerojanawong, Chanthana Harnruthakorn
{"title":"Pulmonary Function in Pediatric Stem Cell Transplantation.","authors":"Panuwat Srichaisawat, Jitladda Deerojanawong, Chanthana Harnruthakorn","doi":"10.1016/j.transproceed.2024.10.013","DOIUrl":"10.1016/j.transproceed.2024.10.013","url":null,"abstract":"<p><strong>Background: </strong>Pediatric hematopoietic stem cell transplantation often results in pulmonary complications, yet limited data exist on pulmonary function in Thailand. This study aims to assess pulmonary function, investigating associated complications and identifying clinical factors linked to pre- and post-transplant pulmonary function defects.</p><p><strong>Methods: </strong>In this retrospective cohort study, we focused on children aged 6-18 years who underwent hematopoietic stem cell transplantation between 1999 and 2020, ensuring accessible pulmonary function tests results.</p><p><strong>Results: </strong>Among 48 patients, abnormal pulmonary function pre- and post-transplant (2-8 years) included a diffusion defect in 16.7% and 18.8%, a restrictive defect in 20.8% and 8.3%, and an obstructive defect in 4.2% and 10.4%, respectively. Pulmonary complications occurred in 16 patients (33.3%), including 15 infections and 1 case of bronchiolitis obliterans. While pretransplant pulmonary function defects were not significantly associated with specific characteristics, post-transplant pulmonary complications correlated with post-transplant pulmonary function defects (aOR = 4.11, 95% CI = 1.23-13.64, P = .02). Among the 6 patients with pre- and post-transplant follow-up, those with pulmonary complications showed a discernible decline in pulmonary function over time, while those without pulmonary complications remained stable or improved. However, the differences between these groups did not reach statistical significance (P = .13-.76).</p><p><strong>Conclusions: </strong>Prevalent pulmonary function defects and complications in pediatric hematopoietic stem cell transplantation highlight the importance of close pulmonary function monitoring. Post-transplant pulmonary complications are associated with defects, suggesting a potential trend of a subsequent decline in lung function, warranting further prospective validation.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"2032-2038"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515705","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: 0
Thrombocytopenia Predicts Poor Prognosis of Liver Transplantation. 血小板减少预示肝移植预后不良
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-11-09 DOI: 10.1016/j.transproceed.2024.10.016
Qiang Ma, Zhongzhong Liu, Jun Luo, Zhongshan Lu, Zibiao Zhong, Shaojun Ye, Qifa Ye
{"title":"Thrombocytopenia Predicts Poor Prognosis of Liver Transplantation.","authors":"Qiang Ma, Zhongzhong Liu, Jun Luo, Zhongshan Lu, Zibiao Zhong, Shaojun Ye, Qifa Ye","doi":"10.1016/j.transproceed.2024.10.016","DOIUrl":"10.1016/j.transproceed.2024.10.016","url":null,"abstract":"<p><strong>Background/aim: </strong>Platelets not only participate in physiological hemostasis but also play a major role in liver ischemia-reperfusion injury, liver damage, tissue repair, and liver regeneration. A decrease in platelet count can lead to spontaneous bleeding, infection, and other complications that can seriously impact patient prognosis. Thrombocytopenia has been associated with increased complications after partial hepatectomy, although the effects of thrombocytopenia on patient outcomes remain unclear. Therefore, this study aimed to examine the impact of thrombocytopenia on short- and long-term prognosis following liver transplantation (LT).</p><p><strong>Methods: </strong>This was a retrospective analysis comprising 234 adult liver transplant recipients and conducted from January 2019 to June 2022. Preoperative and postoperative daily platelet counts were recorded up to the 30th postoperative day (POD). We defined people with platelet counts <70 × 10<sup>9</sup>/L as the low platelet group, and people with platelet counts >70 × 10<sup>9</sup>/L as the high platelet group. Multivariate analysis was carried out to determine whether low perioperative platelet count was a risk factor for postoperative complications, graft failure, and patient survival.</p><p><strong>Results: </strong>Of the 234 patients analyzed in this study, approximately half (n = 112, 47.9%) developed persistent thrombocytopenia after LT. The most substantial decrease in platelet levels occurred on POD7. The cumulative survival rates at 1, 2, and 3 years in the high platelet group were higher than those in the low platelet group, 94%, 87%, and 85%, respectively, while those of the low platelet group were 84%, 78%, and 70% (P = .0014). In addition, the high platelet group had a lower incidence of biliary complications compared with the low platelet group (8% vs 19%, P = .020). At the same time, the high platelet group had a lower incidence of posttransplant lung infection (55% vs 75%, P = .040).</p><p><strong>Conclusions: </strong>Thrombocytopenia is a common complication of LT. It indicates the severity of the postoperative course and is closely associated with patient survival. In particular, patients who undergo orthotopic liver transplantation (OLT) and have a platelet count <70 × 10<sup>9</sup>/L on the POD7 have significant negative prognostic implications and should be further investigated.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"1995-2002"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635658","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: 0
Impact of Paxlovid on Tacrolimus Concentration in Kidney Transplant Patients: A Retrospective Observational Study. Paxlovid 对肾移植患者他克莫司浓度的影响:一项回顾性观察研究
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-11-04 DOI: 10.1016/j.transproceed.2024.10.008
Wen-Jing Li, Yun Lu, Zi-Biao Zhong, Su-Yu Gao, Cheng-Biao Xue, Wen Hu, Zhong-Zhong Liu, Xuan-Xuan Wang, Zhi-Gao Deng, Shao-Jun Ye, Hong Cheng
{"title":"Impact of Paxlovid on Tacrolimus Concentration in Kidney Transplant Patients: A Retrospective Observational Study.","authors":"Wen-Jing Li, Yun Lu, Zi-Biao Zhong, Su-Yu Gao, Cheng-Biao Xue, Wen Hu, Zhong-Zhong Liu, Xuan-Xuan Wang, Zhi-Gao Deng, Shao-Jun Ye, Hong Cheng","doi":"10.1016/j.transproceed.2024.10.008","DOIUrl":"10.1016/j.transproceed.2024.10.008","url":null,"abstract":"<p><p>Kidney transplant recipients, reliant on lifelong immunosuppressive therapy, face potential drug interactions with emerging treatments such as paxlovid. This study aims to provide guidance for safe administration by examining the impact of paxlovid on tacrolimus levels in kidney transplant recipients. Seven kidney transplant patients who received paxlovid between December 2022 and August 2023 were included for retrospective analysis. Tacrolimus concentration changes were investigated both during and after the administration of paxlovid. Genetic testing for CYP3A5 polymorphisms assessed individual responses. The patient's treatment process was divided into four phases according to the paxlovid administration and the Tacrolimus trough level. The variation of tacrolimus valley concentration, concentration-to-dose ratios (C/D), and creatinine values in different periods were subsequently described and analyzed. The results indicate that tacrolimus levels increased significantly after receiving paxlovid, peaking on day two with a median trough level of 21.8 ng/mL. Prior to the administration of paxlovid, the median C/D value was 6.8 times higher (903.1 to 132.5). Once the paxlovid was stopped, the C/D value and trough level progressively returned to their preadministration levels. Importantly, no graft rejections, adverse events, or neurotoxicity were noted. The levels of creatinine remained stable. During paxlovid treatment, patients adhered to a modified tacrolimus regimen and progressively resumed baseline dosage. In summary, this is the first study to indicate a significant influence of paxlovid on tacrolimus levels in Chinese patients undergoing kidney transplantation. During paxlovid treatment, careful observation and tailored tacrolimus management are crucial to guarantee safe administration and circumvent negative consequences.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"1954-1960"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585414","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: 0
Enhanced VCA Storage: A Pilot Study Demonstrating Supercooling in Orthotopic Rodent Hindlimb Transplantation. 增强 VCA 储存:在同种异位啮齿动物后肢移植中展示过冷的试点研究。
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-28 DOI: 10.1016/j.transproceed.2024.10.006
Irina Filz von Reiterdank, McLean S Taggart, Michelle E McCarthy, Antonia T Dinicu, Basak E Uygun, J Henk Coert, Aebele B Mink van der Molen, Korkut Uygun
{"title":"Enhanced VCA Storage: A Pilot Study Demonstrating Supercooling in Orthotopic Rodent Hindlimb Transplantation.","authors":"Irina Filz von Reiterdank, McLean S Taggart, Michelle E McCarthy, Antonia T Dinicu, Basak E Uygun, J Henk Coert, Aebele B Mink van der Molen, Korkut Uygun","doi":"10.1016/j.transproceed.2024.10.006","DOIUrl":"10.1016/j.transproceed.2024.10.006","url":null,"abstract":"<p><p>The field of vascularized composite allograft (VCA) transplantation has seen steady, rapid growth, with new innovations driving the evolution from experimental procedures to more standardized therapies. With this expansion comes challenges with graft allocation, preservation, and postoperative graft rejection. Here, we outline the first example of subzero nonfreezing (SZNF), supercooled storage of a whole rat hindlimb with orthotopic transplantation. Rat hindlimbs were procured, loaded, and supercooled for 48 hours at -4°C (n = 4), after which, they were recovered. The loading and recovery phase were performed using subnormothermic machine perfusion (SNMP) during which viability markers (glucose and oxygen consumption, lactate, and resistance) were tracked. Control limbs underwent static cold storage (SCS). After ex vivo validation, the model was piloted in a transplant model, comparing 48 hours of SZNF (n = 1), 48 hours of SCS (n = 1), and 72 hours of SCS (n = 1), which demonstrated no survival beyond postoperative day 4 in the SCS models, and survival until the end of study (postoperative day [POD] 28) in the SZNF model. This study demonstrates the promise of this model in future studies on long-term VCA preservation.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"2039-2045"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625614/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570830","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
Determination of Bone Fracture Risk in Kidney Transplant Recipients With FRAX Score. 用 FRAX 评分确定肾移植受者的骨折风险
Transplantation proceedings Pub Date : 2024-11-01 Epub Date: 2024-10-30 DOI: 10.1016/j.transproceed.2024.10.009
Beyza Algul Durak, Melahat Coban, Mine Sebnem Karakan
{"title":"Determination of Bone Fracture Risk in Kidney Transplant Recipients With FRAX Score.","authors":"Beyza Algul Durak, Melahat Coban, Mine Sebnem Karakan","doi":"10.1016/j.transproceed.2024.10.009","DOIUrl":"10.1016/j.transproceed.2024.10.009","url":null,"abstract":"<p><strong>Background: </strong>It is thought that the Fracture Risk Assessment Tool (FRAX) score of the World Health Organization (WHO) determines a 10-year fracture risk. This study aimed to investigate the major osteoporotic fracture (MOF) and hip fracture (HF) values determined with the FRAX score and practicality of the FRAX score in kidney transplant recipients (KTRs).</p><p><strong>Methods: </strong>This study was conducted with 44 female and 59 male KTRs and 100 subjects in the healthy control group. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. FRAX scores were calculated from baseline information (age, height, weight, BMD of the femur and neck T score, fracture history, glucocorticoid use, smoking status, alcohol consumption, and presence of rheumatoid arthritis).</p><p><strong>Results: </strong>In KTRs, FRAX score MOF, and FRAX score HF were found to be significantly elevated, whereas the BMD femur T score was determined to be significantly low. No significant relationship was found among the FRAX score MOF and HF and kidney function tests and bone parameters. In the receiver operating characteristic (ROC) analysis, which was performed based on the determination of the FRAX score, the cutoff point was determined as ≥ 3.4 for MOF and ≥ 0.4 for HF.</p><p><strong>Conclusion: </strong>In KTRs, increased FRAX score MOF and HF compared with healthy individuals were determined. FRAX score MOF ≥ 3.4 and HF ≥ 0.4 values indicate high-risk patients for increased fracture risk. The high accuracy rates determined suggest that the use of the FRAX score in KTRs is a valuable method for determining fracture risk.</p>","PeriodicalId":94258,"journal":{"name":"Transplantation proceedings","volume":" ","pages":"1947-1953"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559929","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: 0
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