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Nakamura M, Takiguchi S, Uehara S, Tomita Y. Outcome of surgical parathyroidectomy for tertiary hyperparathyroidism in kidney transplant recipients: tertiary hyperparathyroidism should not be ignored, for the sake of precious allografts. Ren Fail 2024; 46:2333919. [PMID: 38575330 PMCID: PMC10997355 DOI: 10.1080/0886022x.2024.2333919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
Tertiary hyperparathyroidism is a complication of kidney transplantation. This complicated condition carries over from the dialysis period and varies according to the function of the transplanted allograft. Treatments include pharmacotherapy (mainly using calcimimetics) and parathyroidectomy, but calcimimetics are currently not covered by the national insurance system in Japan. Two types of parathyroidectomy can be performed: subtotal parathyroidectomy; and total parathyroidectomy with partial autograft. Both types can be expected to improve hypercalcemia. Concerns about the postoperative deterioration of allograft function are influenced by preoperative allograft function, which is even more likely to be affected by early surgery after kidney transplantation. In general, transient deterioration of allograft function after surgery is not expected to affect graft survival rate in the medium to long term. Tertiary hyperparathyroidism in kidney transplant recipients negatively impacts allograft and patient survival rates, and parathyroidectomy can be expected to improve prognosis in both kidney recipients and dialysis patients. However, studies offering high levels of evidence remain lacking.
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Affiliation(s)
- Michio Nakamura
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Shinya Takiguchi
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Saeko Uehara
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
| | - Yusuke Tomita
- Department of Transplant Surgery, Tokai University School of Medicine, Isehara-City, Kanagawa, Japan
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Daoud A, Soliman K, Posadas Salas MA, Uehara G, Vaishnav S, Cheungpasitporn W, Casey MJ. COVID-19 and renal allograft rejection: insight from controlled and non-controlled studies. Ren Fail 2024; 46:2336126. [PMID: 38627208 PMCID: PMC11022909 DOI: 10.1080/0886022x.2024.2336126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/22/2024] [Indexed: 04/19/2024] Open
Abstract
AIM Kidney transplant recipients (KTRs), due to their immunosuppressed status, are potentially more susceptible to both the severe effects of COVID-19 and complications in their transplanted organ. The aim of this study is to investigate whether COVID-19 infection increases the risk of rejection in kidney transplant recipients (KTRs). METHODS This study involved a detailed literature review, conducted using PubMed, with the search being completed by September 7th, 2023. The search strategy incorporated a combination of relevant keywords: 'COVID', 'Renal', 'Kidney', 'Transplant', and 'Rejection'. The results from controlled and uncontrolled studies were separately collated and analyzed. RESULTS A total of 11 studies were identified, encompassing 1,179 patients. Among these, two controlled studies reported the incidence of rejection in KTRs infected with COVID-19. Pooling data from these studies revealed no significant statistical correlation between COVID-19 infection and biopsy-proven rejection (p = 0.26). In addition, nine non-controlled studies were found, with rejection incidences ranging from 0% to 66.7%. The majority of these studies (eight out of nine) had small sample sizes, ranging from 3 to 75 KTRs, while the largest included 372 KTRs. The combined rejection rate across these studies was calculated to be 11.8%. CONCLUSION In conclusion, the limited number of published controlled studies revealed no statistically significant association between COVID-19 infection and biopsy-proven rejection among KTRs. However, the broader analysis of non-controlled studies showed a variable rejection incidence with a pooled rejection rate of 11.8%. There is insufficient high-quality data to explore the association of COVID-19 infection and rejection.
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Affiliation(s)
- Ahmed Daoud
- Medical University of South Carolina, Charleston, SC, USA
- Division of Nephrology, Cairo University Medical School, Cairo, Egypt
| | - Karim Soliman
- Medical University of South Carolina, Charleston, SC, USA
- Medical Services, Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | | | - Genta Uehara
- Medical University of South Carolina, Charleston, SC, USA
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Ammar M, Yaich S, Hakim A, Ghozzi H, Sahnoun Z, Ben Hmida M, Zghal K, Ben Mahmoud L. Tacrolimus trough level and oxidative stress in Tunisian kidney transplanted patients. Ren Fail 2024; 46:2313863. [PMID: 38345031 PMCID: PMC10863538 DOI: 10.1080/0886022x.2024.2313863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/30/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The effect of tacrolimus (TAC) on oxidative stress after kidney transplantation (KT) is unclear. This study aimed to evaluate the influence of TAC trough levels of oxidative stress status in Tunisian KT patients during the post-transplantation period (PTP). METHODS A prospective study including 90 KT patients was performed. TAC whole-blood concentrations were measured by the microparticle enzyme immunoassay method and adjusted according to the target range. Plasma levels of oxidants (malondialdehyde (MDA) and advanced oxidation protein products (AOPP)) and antioxidants (ascorbic acid, glutathione (GSH), glutathione peroxidase (GPx), and superoxide dismutase (SOD)) were measured using spectrophotometry. The subjects were subdivided according to PTP into three groups: patients with early, intermediate, and late PT. According to the TAC level, they were subdivided into LL-TAC, NL-TAC, and HL-TAC groups. RESULTS A decrease in MDA levels, SOD activity, and an increase in GSH levels and GPx activity were observed in patients with late PT compared to those with early and intermediate PT (p < 0.05). Patients with LL-TAC had lower MDA levels and higher GSH levels and GPx activity compared with the NL-TAC and HL-TAC groups (p < 0.05). CONCLUSION Our results have shown that in KT patients, despite the recovery of kidney function, the TAC reduced but did not normalize oxidative stress levels in long-term therapy, and the TAC effect significantly depends on the concentration used.
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Affiliation(s)
- Mariam Ammar
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
- Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Soumaya Yaich
- Department of Nephrology, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, Sfax, Tunisia
| | - Ahmed Hakim
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
| | - Hanen Ghozzi
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
| | - Zouheir Sahnoun
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
| | - Mohamed Ben Hmida
- Department of Nephrology, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, Sfax, Tunisia
| | - Khaled Zghal
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
| | - Lobna Ben Mahmoud
- Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
- Laboratory of Research of Pharmacology and Toxicology, University of Sfax, Sfax, Tunisia
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Ferreira LM, Batista GG, Bouillet LÉM, Esposito EP. Risk factors for lower renal compensation after nephrectomy: an analysis of living kidney donors in an Amazonian cohort. J Bras Nefrol 2024; 46:e20230134. [PMID: 38498672 DOI: 10.1590/2175-8239-jbn-2023-0134en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/06/2023] [Indexed: 02/17/2024] Open
Abstract
INTRODUCTION Living donor kidney transplantation is considered the ideal renal replacement therapy because it has a lower complication rate and allows an efficient response to the high demand for grafts in the healthcare system. Careful selection and adequate monitoring of donors is a key element in transplantation. Individuals at greater risk of developing kidney dysfunction after nephrectomy must be identified. OBJECTIVE To identify risk factors associated with a renal compensation rate (CR) below 70% 12 months after nephrectomy. METHODS This observational retrospective longitudinal study included living kidney donors followed up at the Lower Amazon Regional Hospital between 2016 and 2022. Data related to sociodemographic variables, comorbid conditions and kidney function parameters were collected. RESULTS The study enrolled 32 patients. Fourteen (43.75%) had a CR < 70% 12 months after kidney donation. Logistic regression found obesity (Odds Ratio [95%CI]: 10.6 [1.7-65.2]), albuminuria (Odds Ratio [95%CI]: 2.41 [1.2-4.84]) and proteinuria (Odds Ratio [95%CI]: 1.14 [1.03-1.25]) as risk factors. Glomerular filtration rate was a protective factor (Odds Ratio [95% CI]: 0.92 [0.85-0.99]). CONCLUSION Obesity, albuminuria and proteinuria adversely affected short-term renal compensation rate. Further studies are needed to uncover the prognostic implications tied to these risk factors. Our findings also supported the need for careful individualized assessment of potential donors and closer monitoring of individuals at higher risk.
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Sahragard I, Yaghobi R, Mohammadi A, Afshari A, Pakfetrat M, Hossein Karimi M, Reza Pourkarim M. Impact of BK Polyomavirus NCCR variations in post kidney transplant outcomes. Gene 2024; 913:148376. [PMID: 38490510 DOI: 10.1016/j.gene.2024.148376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/10/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
The human BK Polyomavirus (BKPyV) is a DNA virus that is prevalent in 80 % of the population. Infection with this virus may begin in childhood, followed by asymptomatic persistence in the urinary tract. However, in immunocompromised individuals, especially kidney transplant recipients (KTRs), heightened replication of BKPyV can lead to severe complications. The genome of this virus is divided into three parts; the early and late region, and the non-coding control region (NCCR). Mutations in the NCCR can change the archetype strain to the rearranged strain, and NCCR rearrangements play a significant in virus pathogenesis. Interestingly, diverse types of NCCR block rearrangement result in significant differences in conversion potential and host cell viability in the infected cells. A correlation has been detected between increased viral replication potential and pathogenesis in BKPyV-infected KTRs with specific NCCR rearrangements. The objective of this review study was to examine the disease-causing and clinical consequences of variations in the NCCR in BKPyV-infected KTRs such as virus-associated nephropathy (BKPyVAN).
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Affiliation(s)
- Ilnaz Sahragard
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Ramin Yaghobi
- Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ali Mohammadi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Afsoon Afshari
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Pakfetrat
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mahmoud Reza Pourkarim
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Rega Institute for Medical Research, Laboratory for Clinical and Epidemiological Virology, Herestraat 49 BE-3000, Leuven, Belgium
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Sapir-Pichhadze R, Laprise C, Beauchamp ME, Kaouache M, Zhang X, Della Vecchia A, Azoulay L, Franco EL, Abrahamowicz M, Nicolau B. Immunosuppression and cancer risk in kidney transplant recipients: A retrospective cohort study. Int J Cancer 2024; 154:2043-2053. [PMID: 38345158 DOI: 10.1002/ijc.34875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 04/14/2024]
Abstract
We assessed whether contemporary immunosuppression agents were associated with cancer among kidney transplant recipients (KTR), and if this association varied by age and sex. We studied a retrospective province-wide cohort of primary KTR (1997-2016). Employing multivariable Cox models, we estimated associations of cumulative doses of prednisone, mycophenolate and tacrolimus administered over the past 10 years, lagged by 2 years, with the incidence of primary malignant neoplasms (PMN). We assessed interactions with age and sex. To assess the impact of exposure recency, we used weighted cumulative exposure (WCE) modeling. Among 1064 KTR, 108 (10.2%) developed PMN over median follow-up of 73 months (interquartile range: 32-120). Adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) of 0.96 (0.64-1.43), 1.34 (0.96-1.86), and 1.06 (0.88-1.29) were estimated for cumulative daily doses of prednisone (5 mg), mycophenolate (1000 mg), and tacrolimus (2 mg) administered continuously over the past 10 years, respectively. PMN risk associated with cumulative tacrolimus exposure was modified by age (interaction p = .035) and was more pronounced in 15-year and 30-year-old KTR (aHRs of 1.57 [1.08-2.28] and 1.31 [1.03-1.66], respectively) in comparison to older KTR. PMN risk increase associated with higher cumulative mycophenolate dose was more pronounced in females (aHR = 1.86 [1.15-3.00]) than in males (aHR = 1.16 [0.74-1.81]; interaction p = .131). WCE analyses suggested increased PMN risk the higher the mycophenolate doses taken 5-10 years ago. A trend toward increased PMN risk with long-term mycophenolate exposure, particularly in females, and more pronounced risk with long-term tacrolimus exposure in younger KTR, identify opportunities for tailored immunosuppression to mitigate cancer risk.
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Affiliation(s)
- Ruth Sapir-Pichhadze
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- Department of Epidemiology, Biostatistics, Occupational Health, McGill University, Montreal, Quebec, Canada
- Division of Nephrology, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Claudie Laprise
- Department of Social and Preventive Medicine, Université de Montréal, Montreal, Quebec, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
- Division of Cancer Epidemiology, McGill University, Montreal, Quebec, Canada
| | - Marie-Eve Beauchamp
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Mohammed Kaouache
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Xun Zhang
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Alexia Della Vecchia
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Laurent Azoulay
- Department of Epidemiology, Biostatistics, Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Eduardo L Franco
- Department of Epidemiology, Biostatistics, Occupational Health, McGill University, Montreal, Quebec, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
- Division of Cancer Epidemiology, McGill University, Montreal, Quebec, Canada
| | - Michal Abrahamowicz
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
- Department of Epidemiology, Biostatistics, Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Belinda Nicolau
- Department of Epidemiology, Biostatistics, Occupational Health, McGill University, Montreal, Quebec, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Quebec, Canada
- Division of Cancer Epidemiology, McGill University, Montreal, Quebec, Canada
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Floria M, Floria DE, Tănase DM. Insights into uremic cardiomyopathy and cardiac remodeling following kidney transplantation: A call for further research. Int J Cardiol 2024; 404:131960. [PMID: 38499251 DOI: 10.1016/j.ijcard.2024.131960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/10/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Mariana Floria
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iași 700111, Romania; Saint Spiridon Emergency Hospital, Internal Medicine Clinic, Iași 700111, Romania.
| | - Diana-Elena Floria
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iași 700111, Romania; Saint Spiridon Emergency Hospital, Institute of Gastroenterology and Hepatology, Iași 700111, Romania..
| | - Daniela Maria Tănase
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iași 700111, Romania; Saint Spiridon Emergency Hospital, Internal Medicine Clinic, Iași 700111, Romania.
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Pei J, Zhang J, Yu C, Luo J, Wen S, Hua Y, Wei G. Transcriptomics-based identification of TYROBP and TLR8 as novel macrophage-related biomarkers for the diagnosis of acute rejection after kidney transplantation. Biochem Biophys Res Commun 2024; 709:149790. [PMID: 38564938 DOI: 10.1016/j.bbrc.2024.149790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
Macrophages play an important role in the development and progression of acute rejection after kidney transplantation. The study aims to investigate the biological role and significance of macrophage-associated genes (MAG) in acute rejection after kidney transplantation. We utilized transcriptome sequencing results from public databases related to acute rejection of kidney transplantation for comprehensive analysis and validation in animal experiments. We found that a large number of immune-related signaling pathways are activated in acute rejection. PPI protein interaction networks and machine learning were used to establish a Hub gene consisting of TYROBP and TLR8 for the diagnosis of acute rejection. The single-gene GSEA enrichment analysis and immune cell correlation analysis revealed a close correlation between the expression of Hub genes and immune-related biological pathways as well as the expression of multiple immune cells. In addition, the study of TF, miRNAs, and drugs provided a theoretical basis for regulating and treating the Hub genes in acute rejection. Finally, the animal experiments demonstrated once again that acute rejection can aggravate kidney tissue damage, apoptosis level, and increase the release of inflammatory factors. We established and validated a macrophage-associated diagnostic model for acute rejection after kidney transplantation, which can accurately diagnose the biological alterations in acute rejection after kidney transplantation.
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Affiliation(s)
- Jun Pei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
| | - Jie Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
| | - Chengjun Yu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
| | - Jin Luo
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
| | - Sheng Wen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
| | - Yi Hua
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China.
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China.
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Panisset V, Girerd N, Bozec E, Lamiral Z, d'Hervé Q, Frimat L, Huttin O, Girerd S. Long-term changes in cardiac remodelling in prevalent kidney graft recipients. Int J Cardiol 2024; 403:131852. [PMID: 38360102 DOI: 10.1016/j.ijcard.2024.131852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 01/26/2024] [Accepted: 02/10/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Approximately 15% of kidney transplant (KT) recipients develop de novo heart failure after KT. There are scarce data reporting the long-term changes in cardiac structure and function among KT recipients. Despite the improvement in renal function, transplant-related complications as well as immunosuppressive therapy could have an impact on cardiac remodelling during follow-up. We aimed to describe the long-term changes in echocardiographic parameters in prevalent KT recipients and identify the clinical and laboratory factors associated with these changes. METHODS A centralised blinded review of two echocardiographic examinations after KT (on average after 17 and 39 months post-KT respectively) was performed among 80 patients (age 50.4 ± 16.2, diabetes 13.8% pre-KT), followed by linear regression to identify clinico-biological factors related to echocardiographic changes. RESULTS Left atrial volume index (LAVI) increased significantly (34.2 ± 10.8 mL/m2vs. 37.6 ± 15.0 mL/m2, annualised delta 3.1 ± 11.4 mL/m2/year; p = 0.034) while left ventricular ejection fraction (LVEF) decreased (62.1 ± 9.0% vs. 59.7 ± 9.9%, annualised delta -2.7 ± 13.6%/year; p = 0.04). Male sex (β = 8.112 ± 2.747; p < 0.01), pre-KT hypertension (β = 9.725 ± 4.156; p < 0.05), graft from expanded criteria donor (β = 3.791 ± 3.587; p < 0.05), and induction by anti-thymocyte globulin (β = 7.920 ± 2.974; p = 0.01) were associated with an increase in LAVI during follow-up. Higher haemoglobin (>12.9 g/dL) at the time of the first echocardiography (β = 6.029 ± 2.967; p < 0.05) and ACEi/ARB therapy (β = 8.306 ± 3.161; p < 0.05) were associated with an increase in LVEF during follow-up. CONCLUSION This study confirms the existence of long-term cardiac remodelling after KT despite dialysis cessation, characterised by an increase in LAVI and a decrease in LVEF. A better management of anaemia and using ACEi/ARB therapy may prevent such remodelling.
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Affiliation(s)
- Valentin Panisset
- Nephrology Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Nicolas Girerd
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm U1116; CHRU Nancy; F-CRIN INI-CRCT, Vandoeuvre-lès-Nancy, France
| | - Erwan Bozec
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm U1116; CHRU Nancy; F-CRIN INI-CRCT, Vandoeuvre-lès-Nancy, France
| | - Zohra Lamiral
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm U1116; CHRU Nancy; F-CRIN INI-CRCT, Vandoeuvre-lès-Nancy, France
| | - Quentin d'Hervé
- Nephrology Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Luc Frimat
- Nephrology Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Olivier Huttin
- Cardiology Department, University Hospital of Nancy, Vandoeuvre-lès- Nancy, France
| | - Sophie Girerd
- Nephrology Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France; Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm U1116; CHRU Nancy; F-CRIN INI-CRCT, Vandoeuvre-lès-Nancy, France.
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Grabitz C, Sugianto RI, Doyon A, Azukaitis K, Anarat A, Bacchetta J, Bayazit AK, Bulut IK, Caliskan S, Canpolat N, Duzova A, Habbig S, Harambat J, Kiyak A, Longo G, Obrycki L, Paripovic D, Söylemezoğlu O, Thurn-Valsassina D, Yilmaz A, Shroff R, Schaefer F, Schmidt BMW, Melk A. Long-term Effects of Kidney Transplantation Compared With Dialysis on Intima-media Thickness in Children-Results From the 4C-T Study. Transplantation 2024; 108:1212-1219. [PMID: 38227773 DOI: 10.1097/tp.0000000000004881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Children requiring kidney replacement therapy experience high burden of cardiovascular (CV) disease leading to increased mortality. Intima-media thickness (IMT) indicating atherosclerosis is a validated surrogate marker for future CV events. METHODS We investigated the effect of different treatment modalities (dialysis, preemptive kidney transplantation (KTx), late KTx after dialysis) on IMT by multivariable linear mixed-effect modeling. Patients were enrolled in a prospective cohort study. RESULTS A total of 261 analyzed children had a mean follow-up of 3 y. Children after preemptive and late KTx had lower levels of IMT when compared with dialysis. Using an interaction term, a significant progression of IMT over time was seen during dialysis (β = 0.0053 mm/y, P = 0.004). IMT before the start of therapy was the most influential determinant in all models. Low IMT was associated with maintenance steroid treatment after preemptive KTx. High IMT on dialysis was associated with higher systolic blood pressure, lower body mass index, lower serum albumin, and lower bicarbonate. CONCLUSIONS IMT remained rather stable in children several years after KTx. In contrast, children on dialysis had higher IMT values, which increased over time. In these children, blood pressure control, calorie and protein intake, and acid-base homeostasis seem important. Taken together, children might profit from early transplantation to limit accumulation of CV risk.
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Affiliation(s)
- Carl Grabitz
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Rizky I Sugianto
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Anke Doyon
- Center for Pediatrics and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Karolis Azukaitis
- Clinic of Pediatrics, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Ali Anarat
- Department of Pediatrics, Faculty of Medicine, Cukurova Universitesi, Adana, Turkiye
| | | | - Aysun K Bayazit
- Department of Pediatrics, Faculty of Medicine, Cukurova Universitesi, Adana, Turkiye
| | - Ipek K Bulut
- Department of Pediatrics, Faculty of Medicine, Ege University, Izmir, Turkiye
| | - Salim Caliskan
- Department of Pediatric Nephrology, Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkiye
| | - Nur Canpolat
- Department of Pediatric Nephrology, Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkiye
| | - Ali Duzova
- Division of Pediatric Nephrology, Hacettepe University Faculty of Medicine, Ankara, Turkiye
| | - Sandra Habbig
- Department of Pediatrics, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Jerome Harambat
- Department of Pediatrics, Nephrology Unit, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Aysel Kiyak
- Division of Pediatric Nephrology, Kanuni Sultan Suleyman Education and Research Hospital, Istanbul, Turkiye
| | - Germana Longo
- Department of Women's and Children's Health, University of Padua, Padova, Veneto, Italy
| | - Lukasz Obrycki
- Department of Nephrology, Kidney Transplantation and Arterial Hypertension, The Children's Memorial Health Institute, Warsaw, Poland
| | - Dusan Paripovic
- Department of Nephrology, Children's Hospital, University of Belgrade, Belgrade, Serbia
| | - Oğuz Söylemezoğlu
- Department of Pediatric Nephrology, School of Medicine, Gazi University, Ankara, Turkiye
| | - Daniela Thurn-Valsassina
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Alev Yilmaz
- Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkiye
| | - Rukshana Shroff
- Renal Unit, UCL Great Ormond Street Hospital and Institute of Child Health, London, United Kingdom
| | - Franz Schaefer
- Center for Pediatrics and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
| | - Bernhard M W Schmidt
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - Anette Melk
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
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11
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Kohlmeier L, von der Born J, Lehmann E, Fröde K, Grabitz C, Greiner AS, Albrecht AA, Memaran N, Sugianto RI, Tegtbur U, Schmidt BMW, Kanzelmeyer N, Melk A. Physical activity and its impact on cardiovascular health in pediatric kidney transplant recipients. Pediatr Nephrol 2024; 39:1587-1598. [PMID: 38103064 PMCID: PMC10943152 DOI: 10.1007/s00467-023-06248-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Cardiovascular (CV) morbidity after kidney transplantation (KTx) in childhood is of increasing importance. In light of a high prevalence of CV risk factors, protective measures such as physical activity (PA) come into focus. Our aim was to comprehensively assess PA in pediatric KTx recipients and evaluate its impact on CV health. METHODS Forty-eight patients were assessed for frequency, duration, intensity, and setting of PA using the "Motorik-Modul" PA questionnaire. Walking-based activity was measured by accelerometer in a subgroup (n = 23). CV risk factors and subclinical CV organ damage were determined. The impact of PA on CV parameters was analyzed using linear regression models. RESULTS Fifty-two percent of pediatric KTx recipients did not reach WHO recommended PA level; 54% did not engage in PA with vigorous intensity (VPA). Twenty-nine percent indicated an extremely inactive lifestyle (< 120 min/week of moderate to vigorous intensity PA, MVPA). Compared to the healthy German KiGGS cohort, KTx recipients specifically lacked engagement in sport activities (KTx: 129 min/week; 95%CI, 97-162 vs. KiGGS, 242 min/week; 95%CI, 230-253). VPA was associated with lower systolic blood pressure (p = 0.024) and resting heart rate (p = 0.005), MVPA with fewer components of the post-transplant metabolic syndrome (p = 0.037), and better left ventricular diastolic function (p = 0.006). CONCLUSIONS A considerable lack of PA, especially VPA, exists in young KTx recipients. PA was positively associated with important parameters of CV health. While long-term CV protection through PA seems promising in pediatric KTx recipients, specific educational approaches are most likely needed to increase patients' engagement in sport activities.
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Affiliation(s)
- Lena Kohlmeier
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jeannine von der Born
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Elena Lehmann
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Kerstin Fröde
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Carl Grabitz
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Anne-Sophie Greiner
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | | | - Nima Memaran
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Rizky I Sugianto
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Uwe Tegtbur
- Institute of Sports Medicine, Hannover Medical School, Hannover, Germany
| | - Bernhard M W Schmidt
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - Nele Kanzelmeyer
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Anette Melk
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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12
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Knechtle SJ, Ladowski JM, Kwun J. A pig kidney supporting human physiology. Kidney Int 2024; 105:921-922. [PMID: 38642988 DOI: 10.1016/j.kint.2024.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 02/20/2024] [Indexed: 04/22/2024]
Abstract
Because of the global shortage of donor kidneys, xenotransplantation emerges as a potential solution for individuals with kidney failure who face challenges in securing a suitable donor kidney. A study featured in this month's issue of Kidney International assesses the kidney physiology of a porcine kidney transplanted into a brain-dead human with kidney failure, demonstrating life-sustaining physiological function for 7 days. Together with preclinical nonhuman primate studies, decedent models provide complementary data for development of clinical kidney xenotransplantation.
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Affiliation(s)
- Stuart J Knechtle
- Department of Surgery, Duke University, School of Medicine, Durham, North Carolina, USA.
| | - Joseph M Ladowski
- Department of Surgery, Duke University, School of Medicine, Durham, North Carolina, USA
| | - Jean Kwun
- Department of Surgery, Duke University, School of Medicine, Durham, North Carolina, USA
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Berger M, Baliker M, Van Gelder T, Böhmig GA, Mannon RB, Kumar D, Chadban S, Nickerson P, Lee LA, Djamali A. Chronic Active Antibody-mediated Rejection: Opportunity to Determine the Role of Interleukin-6 Blockade. Transplantation 2024; 108:1109-1114. [PMID: 37941113 DOI: 10.1097/tp.0000000000004822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Chronic active antibody-mediated rejection (caAMR) is arguably the most important cause of late kidney allograft failure. However, there are no US Food and Drug Administration (FDA)-approved treatments for acute or chronic AMR and there is no consensus on effective treatment. Many trials in transplantation have failed because of slow and/or inadequate enrollment, and no new agent has been approved by the FDA for transplantation in over a decade. Several lines of evidence suggest that interleukin-6 is an important driver of AMR, and clazakizumab, a humanized monoclonal antibody that neutralizes interleukin-6, has shown promising results in phase 2 studies. The IMAGINE trial (Interleukin-6 Blockade Modifying Antibody-mediated Graft Injury and Estimated Glomerular Filtration Rate Decline) (NCT03744910) is the first to be considered by the FDA using a reasonably likely surrogate endpoint (slope of estimated glomerular filtration rate decline >1 y) for accelerated approval and is the only ongoing clinical trial for the treatment of chronic rejection. This trial offers us the opportunity to advance the care for our patients in need, and this article is a call to action for all transplant providers caring for patients with caAMR.
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Affiliation(s)
- Mel Berger
- Departments of Pediatrics and Pathology, Case Western Reserve University, Cleveland, OH
| | | | - Teun Van Gelder
- Department Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands
| | - Georg A Böhmig
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Roslyn B Mannon
- Division of Nephrology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Deepali Kumar
- Department of Medicine, Division of Transplant Infectious Disease, Ajmera Transplant Centre, Toronto, ON, Canada
| | - Steve Chadban
- Department of Renal Medicine, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Peter Nickerson
- Department of Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Laurie A Lee
- Research and Development, Transplant Therapeutic Area, CSL Behring, King of Prussia, Pennsylvania, PA
| | - Arjang Djamali
- Department of Medicine, Maine Medical Center, Portland, ME
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14
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Sharif A. The Bony Issue of Cardiovascular Disease After Kidney Transplantation. Transplantation 2024; 108:1066-1067. [PMID: 38291569 DOI: 10.1097/tp.0000000000004904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Affiliation(s)
- Adnan Sharif
- Department of Nephrology and Transplantation, University Hospitals Birmingham, Queen Elizabeth Hospital, Birmingham, United Kingdom
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
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15
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Amaro JM, Villanego F, Orellana CD, Vigara LA, Alonso M, García T, Mazuecos A. Management of Dyslipidemia With Evolocumab in Kidney Transplant Recipients. Transplantation 2024; 108:e74-e76. [PMID: 38317278 DOI: 10.1097/tp.0000000000004942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Affiliation(s)
- José Manuel Amaro
- Nephrology Department, Puerta del Mar University Hospital, Cádiz, Spain
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16
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de Nattes T, Beadle J, Roufosse C. Biopsy-based transcriptomics in the diagnosis of kidney transplant rejection. Curr Opin Nephrol Hypertens 2024; 33:273-282. [PMID: 38411022 PMCID: PMC10990030 DOI: 10.1097/mnh.0000000000000974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
PURPOSE OF REVIEW The last year has seen considerable progress in translational research exploring the clinical utility of biopsy-based transcriptomics of kidney transplant biopsies to enhance the diagnosis of rejection. This review will summarize recent findings with a focus on different platforms, potential clinical applications, and barriers to clinical adoption. RECENT FINDINGS Recent literature has focussed on using biopsy-based transcriptomics to improve diagnosis of rejection, in particular antibody-mediated rejection. Different techniques of gene expression analysis (reverse transcriptase quantitative PCR, microarrays, probe-based techniques) have been used either on separate samples with ideally preserved RNA, or on left over tissue from routine biopsy processing. Despite remarkable consistency in overall patterns of gene expression, there is no consensus on acceptable indications, or whether biopsy-based transcriptomics adds significant value at reasonable cost to current diagnostic practice. SUMMARY Access to biopsy-based transcriptomics will widen as regulatory approvals for platforms and gene expression models develop. Clinicians need more evidence and guidance to inform decisions on how to use precious biopsy samples for biopsy-based transcriptomics, and how to integrate results with standard histology-based diagnosis.
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Affiliation(s)
- Tristan de Nattes
- Univ Rouen Normandie, INSERM U1234, CHU Rouen, Department of Nephrology, Rouen, France
| | - Jack Beadle
- Centre for Inflammatory Diseases, Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Candice Roufosse
- Centre for Inflammatory Diseases, Department of Immunology and Inflammation, Imperial College London, London, UK
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17
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Jarmi T, Luo Y, Attieh RM, Qie Y, Gadd ME, Hundal T, Mao S, Murthy HS, Taner BC, Kharfan-Dabaja MA, Qin H. CAR T-cell therapy-paving the way for sensitized kidney transplant patients. Kidney Int 2024; 105:1124-1129. [PMID: 38573274 DOI: 10.1016/j.kint.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/18/2024] [Accepted: 02/02/2024] [Indexed: 04/05/2024]
Affiliation(s)
- Tambi Jarmi
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA.
| | - Yan Luo
- Regenerative Immunotherapy and CAR-T Translational Research Program, Mayo Clinic, Jacksonville, Florida, USA; Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Rose Mary Attieh
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA
| | - Yaqing Qie
- Regenerative Immunotherapy and CAR-T Translational Research Program, Mayo Clinic, Jacksonville, Florida, USA
| | - Martha E Gadd
- Regenerative Immunotherapy and CAR-T Translational Research Program, Mayo Clinic, Jacksonville, Florida, USA
| | - Tanya Hundal
- Regenerative Immunotherapy and CAR-T Translational Research Program, Mayo Clinic, Jacksonville, Florida, USA
| | - Shennen Mao
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA
| | - Hemant S Murthy
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Mayo Clinic, Jacksonville, Florida, USA; Blood and Marrow Transplantation and Cellular Therapy Program, Mayo Clinic, Jacksonville, Florida, USA
| | - Burcin C Taner
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA
| | - Mohamed A Kharfan-Dabaja
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Mayo Clinic, Jacksonville, Florida, USA; Blood and Marrow Transplantation and Cellular Therapy Program, Mayo Clinic, Jacksonville, Florida, USA
| | - Hong Qin
- Regenerative Immunotherapy and CAR-T Translational Research Program, Mayo Clinic, Jacksonville, Florida, USA; Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA; Division of Hematology and Medical Oncology, Department of Internal Medicine, Mayo Clinic, Jacksonville, Florida, USA; Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA.
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18
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Jeon HJ, Ryu JH, Kim MG, Huh KH, Lee KW, Kim CD, Kang KP, Ro H, Han S, Yang J. Association of Serum Osteoprotegerin With Vascular Calcification, and Cardiovascular and Graft Outcomes in Kidney Transplant Patients: Results From the KNOW-KT. Transplantation 2024; 108:1239-1248. [PMID: 38291579 DOI: 10.1097/tp.0000000000004903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
BACKGROUND Vascular calcification and stiffness contribute to increased cardiovascular morbidity in patients with chronic kidney disease. This study investigated associations between serum osteoprotegerin (OPG) levels and vascular calcification or stiffness to assess cardiovascular and graft outcomes in kidney transplant patients. METHODS The KoreaN cohort study for Outcome in patients With Kidney Transplantation was a prospective multicenter cohort study. Serum OPG levels were measured at baseline and 3 y after transplantation in 1018 patients. Patients were classified into high and low OPG groups according to median serum OPG levels. The median follow-up duration was 93.5 mo. RESULTS The mean age was 45.8 ± 11.7 y and 62.9% were men. Patients with high OPG had significantly higher coronary artery calcium scores, abdominal aortic calcification scores, and brachial-ankle pulse wave velocities than those with lower OPG; these parameters remained significant for 5 y after transplantation. The 3-y OPG levels were lower than baseline values ( P < 0.001) and were positively correlated ( r = 0.42, P < 0.001). Multivariate Cox regression analysis showed that high OPG levels were significantly associated with posttransplant cardiovascular events ( P = 0.008) and death-censored graft loss ( P = 0.004). Similar findings regarding posttransplant cardiovascular events ( P = 0.012) and death-censored graft loss ( P = 0.037) were noted in patients with high OPG at the 3-y follow-up. Mediation analyses revealed that coronary artery calcium scores, abdominal aortic calcification scores, and brachial-ankle pulse wave velocities could act as mediators between serum OPG levels and posttransplant cardiovascular events. CONCLUSIONS Serum OPG concentration is associated with vascular calcification and stiffness and could be a significant risk factor for cardiovascular outcomes and graft loss in patients undergoing kidney transplantation.
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Affiliation(s)
- Hee Jung Jeon
- Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwa Ryu
- Department of Internal Medicine, Ewha Womans University Medical Center, Seoul, Republic of Korea
| | - Myung-Gyu Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyu Ha Huh
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Kyo Won Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Kyung Pyo Kang
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Han Ro
- Department of Internal Medicine, Gachon University, Gil Hospital, Incheon, Republic of Korea
| | - Seungyeup Han
- Department of Internal Medicine, Keimyung University, Dongsan Medical Center, Daegu, Republic of Korea
| | - Jaeseok Yang
- Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea
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19
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Natale P, Palmer SC, Jaure A, Saglimbene V, Iannone A, Sluiter A, Craig J, Strippoli GFM. Blood pressure lowering for kidney transplant recipients: systematic review with network meta-analysis. J Hypertens 2024; 42:848-855. [PMID: 38230619 DOI: 10.1097/hjh.0000000000003663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
OBJECTIVE Hypertension affects 50-90% of kidney transplant recipients and is associated with cardiovascular disease and graft loss. We aimed to evaluate the comparative benefits and harms of blood pressure lowering agents in people with a functioning kidney transplant. METHODS We conducted a systematic review with network meta-analysis of randomized controlled trials (RCTs). We searched MEDLINE, Embase, and CENTRAL through to October 2023. RCTs evaluating blood pressure lowering agents administered for at least 2 weeks in people with a functioning kidney transplant with and without preexisting hypertension were eligible. Two reviewers independently extracted data. The primary outcome was graft loss. Treatment effects were estimated using random effects network meta-analysis, with treatment effects expressed as an odds ratio (OR) for binary outcomes and mean difference (MD) for continuous outcomes together with their 95% confidence interval (CI). Confidence in the evidence was assessed using GRADE for network meta-analysis. RESULTS Ninety-four studies (7547 adults) were included. Two studies were conducted in children. No blood pressure-lowering agent reduced the risk of graft loss, withdrawal because of adverse events, death, cardiovascular or kidney outcomes compared with placebo/other drug class. Angiotensin-converting enzyme inhibitors and angiotensin receptor blocker therapy may incur greater odds of hyperkalemia compared with calcium channel blockers [odds ratio (OR) 5.48, 95% confidence interval (CI) 2.47-12.16; and OR 8.67, 95% CI 2.65-28.36; low certainty evidence, respectively). CONCLUSION The evidentiary basis for the comparative benefits and safety of blood pressure lowering agents in people with a functioning kidney transplant is limited to guide treatment decision-making.
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Affiliation(s)
- Patrizia Natale
- Sydney School of Public Health, The University of Sydney, New South Wales, Australia
- Department of Precision and Regenerative Medicine and Ionian Area (DIMEPRE-J), University of Bari Aldo Moro, Bari
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Suetonia C Palmer
- Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand
| | - Allison Jaure
- Sydney School of Public Health, The University of Sydney, New South Wales, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead
| | - Valeria Saglimbene
- Sydney School of Public Health, The University of Sydney, New South Wales, Australia
- Department of Precision and Regenerative Medicine and Ionian Area (DIMEPRE-J), University of Bari Aldo Moro, Bari
| | - Andrea Iannone
- Department of Precision and Regenerative Medicine and Ionian Area (DIMEPRE-J), University of Bari Aldo Moro, Bari
| | - Amanda Sluiter
- Sydney School of Public Health, The University of Sydney, New South Wales, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead
| | - Jonathan Craig
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Giovanni F M Strippoli
- Sydney School of Public Health, The University of Sydney, New South Wales, Australia
- Department of Precision and Regenerative Medicine and Ionian Area (DIMEPRE-J), University of Bari Aldo Moro, Bari
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Brás AC, Querido S, Mascarenhas A, Mendes R, Verissimo R, Chagas C, Weigert A. Epstein-Barr virus associated colitis in kidney transplant patients: a case series. Infect Dis (Lond) 2024; 56:410-415. [PMID: 38459811 DOI: 10.1080/23744235.2024.2326594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/27/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Gastrointestinal complications are common in kidney transplant (KT) patients and can be a consequence of the chronic use of immunosuppression. The differential diagnosis of colitis in KT patients includes intolerance to immunosuppressive agents, namely mycophenolate mofetil, de novo inflammatory bowel disease (IBD) and opportunistic infections. Epstein-Barr virus (EBV) infection may cause post-transplant colitis or trigger de novo IBD, although is seldom thought as the causative pathogen. OBJECTIVES To describe clinical characteristics, endoscopic and histological findings, treatment and outcome of three patients that developed EBV associated colitis following kidney transplantation. METHODS We retrospectively analyzed three patients with EBV associated colitis; clinical data including transplantation, gastrointestinal symptoms, endoscopy findings, and follow-up data was obtained. RESULTS We present a case series of three patients with EBV colitis following KT, with an average age at clinical presentation of 59 years and elapsed time since the KT ranging from five to 22 years. Clinical manifestations included bloody diarrhoea, abdominal pain, weight loss and/or fever. Cytomegalovirus colitis, mycophenolate mofetil-related colitis, lymphoproliferative disease and graft versus host disease were excluded. One patient had a prior diagnosis of IBD. Two of the three patients had an unfavourable outcome with death despite reduction and/or switching of immunosuppressants, optimal medical treatment (including antiviral and intravenous immunoglobulin therapies) and salvage surgical therapy. CONCLUSION A multidisciplinary approach is necessary to allow an expeditious diagnosis of a rare entity such as EBV associated colitis in KT. Long-term surveillance of these patients and the development of effective and safe therapies is essential.
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Affiliation(s)
- Ana Catarina Brás
- Nephrology Department, Hospital Prof. Dr. Fernando Fonseca, Amadora, Portugal
| | - Sara Querido
- Kidney Transplant Unit, Nephrology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - André Mascarenhas
- Gastroenterology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - Raquel Mendes
- Gastroenterology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - Rita Verissimo
- Kidney Transplant Unit, Nephrology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - Cristina Chagas
- Gastroenterology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - André Weigert
- Kidney Transplant Unit, Nephrology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
- Pharmacology and Neurosciences Department, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
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21
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von Samson-Himmelstjerna FA, Kakavand N, Gleske C, Schraml F, Basta AA, Braunisch MC, Bräsen JH, Schmitz J, Kraus D, Weinmann-Menke J, Zacharias HU, Vaulet T, Naesens M, Krautter M, Schwenger V, Esser G, Kolbrink B, Amann K, Holzmann-Littig C, Echterdiek F, Kunzendorf U, Renders L, Schulte K, Heemann U. Potential and Uncertainties of RejectClass in Acute Kidney Graft Dysfunction: An Independent Validation Study. Transplantation 2024; 108:1228-1238. [PMID: 38196094 DOI: 10.1097/tp.0000000000004906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
BACKGROUND Kidney graft rejections are classified based on the Banff classification. The RejectClass algorithm, initially derived from a cohort comprising mostly protocol biopsies, identifies data-driven phenotypes of acute rejection and chronic pathology using Banff lesion scores. It also provides composite scores for inflammation activity and chronicity. This study independently evaluates the performance of RejectClass in a cohort consisting entirely of indication biopsies. METHODS We retrospectively applied RejectClass to 441 patients from the German TRABIO (TRAnsplant BIOpsies) cohort who had received indication biopsies. The primary endpoint was death-censored graft failure during 2 y of follow-up. RESULTS The application of RejectClass to our cohort demonstrated moderately comparable phenotypic features with the derivation cohort, and most clusters indicated an elevated risk of graft loss. However, the reproduction of all phenotypes and the associated risks of graft failure, as depicted in the original studies, was not fully accomplished. In contrast, adjusted Cox proportional hazards analyses substantiated that both the inflammation score and the chronicity score are independently associated with graft loss, exhibiting hazard ratios of 1.7 (95% confidence interval, 1.2-2.3; P = 0.002) and 2.2 (95% confidence interval, 1.8-2.6; P < 0.001), respectively, per 0.25-point increment (scale: 0.0-1.0). CONCLUSIONS The composite inflammation and chronicity scores may already have direct utility in quantitatively assessing the disease stage. Further refinement and validation of RejectClass clusters are necessary to achieve more reliable and accurate phenotyping of rejection.
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Affiliation(s)
| | - Nassim Kakavand
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein-Campus Kiel, Kiel, Germany
| | - Charlotte Gleske
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Florian Schraml
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Agathe A Basta
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Matthias C Braunisch
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Jan H Bräsen
- Nephropathology Unit, Department of Pathology, Hannover Medical School, Hannover, Germany
| | - Jessica Schmitz
- Nephropathology Unit, Department of Pathology, Hannover Medical School, Hannover, Germany
| | - Daniel Kraus
- Department of Nephrology, Department of Internal Medicine 1, University Medical Center Mainz, Mainz, Germany
| | - Julia Weinmann-Menke
- Department of Nephrology, Department of Internal Medicine 1, University Medical Center Mainz, Mainz, Germany
| | - Helena U Zacharias
- Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Hannover Medical School, Hannover, Germany
| | - Thibaut Vaulet
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
| | - Maarten Naesens
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
| | - Markus Krautter
- Department of Nephrology, Transplant Center, Klinikum Stuttgart, Stuttgart, Germany
| | - Vedat Schwenger
- Department of Nephrology, Transplant Center, Klinikum Stuttgart, Stuttgart, Germany
| | - Grit Esser
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein-Campus Kiel, Kiel, Germany
| | - Benedikt Kolbrink
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein-Campus Kiel, Kiel, Germany
| | - Kerstin Amann
- Department of Nephropathology, University Hospital Erlangen, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Christopher Holzmann-Littig
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Fabian Echterdiek
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Ulrich Kunzendorf
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein-Campus Kiel, Kiel, Germany
| | - Lutz Renders
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Kevin Schulte
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein-Campus Kiel, Kiel, Germany
| | - Uwe Heemann
- Department of Nephrology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
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22
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Yang M, Chuang SYC, Kennedy SE. Sleep disturbances in children and adolescents after kidney transplantation. Pediatr Nephrol 2024; 39:1577-1585. [PMID: 38082092 DOI: 10.1007/s00467-023-06204-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 03/16/2024]
Abstract
BACKGROUND Disturbances of sleep are prevalent among children with chronic kidney disease. However, the aetiology of sleep disorders in children particularly after kidney transplantation is not clear. We sought to ascertain the prevalence and type of sleep disturbances in paediatric kidney transplant recipients and to identify predictors of sleep disturbances in this population. METHODS Caregivers of kidney transplant recipients completed online questionnaires about their child's sleep. The questionnaires utilised were the Sleep Disturbance Scale for Children (SDSC), the Epworth Sleepiness Scale for Children and Adolescents (ESS-CHAD), questions about sleep hygiene, and questions about restless leg syndrome. Demographic and clinical details were collected from medical records. RESULTS Thirty-five children were included in the study, with a median (IQR) age of 14.1 years (9.5-16.1) and median years (IQR) since transplant of 3.7 (0.7-8.7) years, and 72.0% were identified to have at least one category of sleep disturbance according to scores on the SDSC. The most common sleep disturbances reported were disorders of initiating and maintaining sleep (DIMS) (40.0%) and disorders of excessive somnolence (DOES) (31.4%). Statistically significant predictors of sleep disturbances include low estimated glomerular filtration rate and increased age. Among children who screened positive for DIMS and DOES, the majority indicated use of electronic devices in 1 h before bed. CONCLUSIONS A high prevalence of sleep disturbances has been identified in children after kidney transplants, and some risk factors may be modifiable. Further studies are required to understand whether there are other readily modifiable predictors of sleep disturbances.
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Affiliation(s)
- Mian Yang
- Discipline of Paediatrics and Child Health, School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia.
| | - Sandra Ya-Chu Chuang
- Discipline of Paediatrics and Child Health, School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia
- Respiratory Department, Sydney Children's Hospital, Randwick, NSW, Australia
| | - Sean E Kennedy
- Discipline of Paediatrics and Child Health, School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia
- Nephrology Department, Sydney Children's Hospital, Randwick, NSW, Australia
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23
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Tári V, Janka EA, Emri G, Nemes B, Remenyik É, Gellén E. Effect of education on sun-safe behaviour in kidney transplant recipients. Photodermatol Photoimmunol Photomed 2024; 40:e12966. [PMID: 38616381 DOI: 10.1111/phpp.12966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/10/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Organ transplant recipients (OTR) are more likely to develop skin cancer than the general population. One of the main components of the exposome that triggers the development of skin tumours is solar ultraviolet (UV) radiation. To reduce the incidence of harmful consequences of sun exposure, sun protection education is needed for patients taking long-term immunosuppressive drugs. METHODS In a previous study, we assessed the sun-safe behaviour of 221 OTR using a questionnaire before and after transplantation and personally educated the patients about proper sun protection. After the education, there were no further reminder presentations. Presently, the sun protection and sun seeking habits of the available 176 of these patients were questioned to assess the long-term effect of the previous sun protection education. RESULTS Two-four years after the education, more patients wore hats and protected their skin with long-sleeved clothing than before the education. In terms of sun seeking habits, both occupational and recreational sun exposure decreased significantly. Significantly fewer people went on holiday after transplantation, but those who went on holiday spent significantly less time in the sun. CONCLUSION The long-term positive effects of education can be seen both in the patients' sun protection and in their sun seeking habits. However, the long-term goal is to maintain these results and thereby reduce the likelihood of skin tumours and consequently the associated tumour death.
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Affiliation(s)
- Vanessza Tári
- Department of Dermatology, MTA Centre of Excellence, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eszter Anna Janka
- Department of Dermatology, MTA Centre of Excellence, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, Debrecen, Hungary
| | - Gabriella Emri
- Department of Dermatology, MTA Centre of Excellence, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, Debrecen, Hungary
| | - Balázs Nemes
- Department of Transplantation, Institute of Surgery, University of Debrecen, Clinical Center, Debrecen, Hungary
| | - Éva Remenyik
- Department of Dermatology, MTA Centre of Excellence, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Allergology Research Group, Debrecen, Hungary
| | - Emese Gellén
- Department of Dermatology, MTA Centre of Excellence, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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24
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Kläger J, Schmidinger M, Oszwald A, Wasinger G, Fajkovic H, Compérat E. Metastatic Translocated Renal Cell Carcinoma in a Kidney Transplant Patient - a Case Report and Review of the Literature. Int J Surg Pathol 2024; 32:594-600. [PMID: 37415400 PMCID: PMC11025305 DOI: 10.1177/10668969231185070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/06/2023] [Accepted: 06/06/2023] [Indexed: 07/08/2023]
Abstract
TFEB-altered renal cell carcinomas are rare tumours. Here, we report the exceptional case of such a tumour in the setting of solid organ transplantation and with already metastatic disease at the time of diagnosis. The primary tumour occurred in the native kidney and only focally showed biphasic morphology whereas the metastasis, among others to the transplant kidney, showed nonspecific, albeit different morphology, but both had consistent TFEB translocation. Treatment with the immune checkpoint inhibitor pembrolizumab together with the multi-kinase inhibitor lenvatinib achieved partial response 14 months after diagnosis.
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Affiliation(s)
- Johannes Kläger
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | | | - André Oszwald
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | - Gabriel Wasinger
- Department of Pathology, Medical University of Vienna, Wien, Austria
| | - Harun Fajkovic
- Department of Urology, Medical University of Vienna, Wien, Austria
| | - Eva Compérat
- Department of Pathology, Medical University of Vienna, Wien, Austria
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25
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Omic H, Eder M. Effect of increasing age and ureteral stent implantation on urinary tract infections after kidney transplantation - update of recent literature. Curr Opin Urol 2024; 34:146-153. [PMID: 38426237 PMCID: PMC10990026 DOI: 10.1097/mou.0000000000001163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
PURPOSE OF REVIEW This review aims to present the recent literature regarding effects of aging and ureteral stent implantation (UrS) on the risk of urinary tract infections (UTIs) in kidney transplant (KTX) recipients. RECENT FINDINGS UTIs in kidney transplant recipients remain a clinical challenge and represent a leading cause of morbidity, hospitalization rates, and mortality. Higher age was described as a significant risk factor for UTIs in several studies including a recent Brazilian analysis, indicating a 3.6%/years of age increase in UTI risk. Subsequently, a large meta-analysis, published in 2023, confirmed the correlation between older age and elevated UTI risk. The Swiss Transplant Cohort Study in 2022, largest of its kind, similarly confirmed a link between advanced age and heightened risk of recurrent UTIs in KTX. A recent prospective study highlighted UrS placement as a modifiable risk factor, emphasizing the need for careful consideration and antibiotic prophylaxis. Additionally, the type of stents played a crucial role, with external stents associated with a 1.69 times higher UTI risk. The challenge of determining optimal UrS removal timing further complicates posttransplant care, with insufficient evidence to guide practices. SUMMARY The aging population of KTX recipients requires a personalized approach to effectively reduce and manage UTIs as one of the most important complications following KTX. Prophylactic stent implantation is successful in lowering ureteral complications, however, is associated with an increased incidence of UTIs. To reduce the increased risk of UTIs, the length of stent insertion requires strict supervision and maintenance.
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Affiliation(s)
- Haris Omic
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Vienna, Austria
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26
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Yoshimura Y, Suwabe T, Fujiki A, Kaji D, Asano-Mori Y, Oba Y, Mizuno H, Yamanouchi M, Tanaka K, Hasegawa E, Miki K, Yokoyama T, Namamura Y, Ishii Y, Yamashita S, Kono K, Kinowaki K, Takazawa Y, Sawa N, Ubara Y. Gastric Burkitt's monomorphic post-transplant lymphoproliferative disorder after kidney transplantation: A case report. Clin Nephrol 2024; 101:250-256. [PMID: 38329919 DOI: 10.5414/cn111321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2024] [Indexed: 02/10/2024] Open
Abstract
We report on a 53-year-old Japanese man diagnosed with gastric Burkitt's monomorphic post-transplant lymphoproliferative disorder (B-PTLD) after endoscopy for gastric discomfort 28 months after the patient underwent renal transplantation in Ethiopia. Serum Epstein-Barr virus (EBV) tests were negative before transplantation, but the tumor cells collected from a gastric biopsy showed positive EBV-encoded small RNAs (EBER) at B-PTLD onset. Intensive treatment started with R(rituximab)-CHOP therapy and continued with DA-EPOCH-R therapy has been effective, and relapse has not yet occurred. Burkitt lymphoma has a poor prognosis, but B-PTLD may be effectively treated with high-dose chemotherapy. This is a rare case of gastric B-PTLD in a Japanese patient.
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27
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Cai Z, Wang T. SARS-CoV-2 Omicron infection in a cohort of hospitalized kidney transplant recipients: Risk factors of severity. Clin Nephrol 2024; 101:238-249. [PMID: 38497686 DOI: 10.5414/cn111303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2024] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron is a major coronavirus variant, which was prevalent in China at the end of 2022 and caused widespread infection. As an immunosuppressed group, renal transplant recipients with SARS-CoV-2 infection are prone to developing serious pneumonia or an adverse outcome event if the infection is not treated in time. Here, we analyze the possible risk factors of infection severity. MATERIALS AND METHODS 92 cases of moderate and severe SARS-CoV-2 infection after renal transplantation were collected. Statistical methods, including Fisher's tests, F test, Spearman relative values, and multi-parameter logistic regression models, were used to analyze the risk factors for severe SARS-CoV-2 infection in renal transplant recipients. RESULTS 44 cases complicated with hypertension were observed in the study cohort, among whom 30 were severe (OR: 4.63, p < 0.001). Out of 51 male patients infected with Omicron, 30 male patients presented with severe SARS-CoV-2 (OR: 2.45, p = 0.039). In renal transplant patients, hypertension comorbidity was closely correlated with clinical presentation (R = 0.369, p < 0.001). Blood routine test, chemistries, and additional indices showed increased neutrophils and C-reactive protein in patients with severe disease compared with the moderate group according to one-way analysis of variance (p = 0.004), while CD3 (p = 0.02) and CD4 (p = 0.04) showed lower expressional levels. We also observed meaningful correlations between neutrophil levels and hypertension comorbidity (R = 0.222, p = 0.034) and between interleukin-6 (IL-6) levels and diabetes comorbidity (R = 0.315, p = 0.011), with IL-6 considered a key factor in the context of coronavirus disease. CONCLUSION Renal transplant recipients were generally susceptible to infection with the Omicron variant, with a more pronounced incidence of severe illness observed in the group with hypertension comorbidity.
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28
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Ramirez-Amoros C, San Basilio M, Amesty V, Rivas S, Lobato R, Fernandez-Camblor C, Lopez-Pereira P, Martinez-Urrutia MJ. Long-term outcome of pediatric renal transplantation with donors younger than 6 years. Pediatr Transplant 2024; 28:e14761. [PMID: 38628086 DOI: 10.1111/petr.14761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 03/15/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Renal transplantation is currently the best treatment option for patients with end-stage renal disease. However, the use of kidneys from donors under 6 years of age as a possibility to increase the organ pool in pediatric recipients remains a controversial matter. We aimed to investigate whether donor age is associated to the long-term functionality of the renal graft. Likewise, we analyzed the adaptation of the graft to the ascending functional requirements in the pediatric patient. METHODS Retrospective study of the results obtained in pediatric recipients transplanted with grafts from donors between 3 and 6 years of age, comparing them with those of grafts from donors older than 6 years. Among the variables compared are cumulative graft survival, renal size, need for antiproteinuric therapy, GFR, incidence of rejection, pyelonephritis, renal failure and surgical or tumor complications. RESULTS A total of 43 transplants were performed with donors aged 3-6 years, and 42 transplants with donors older than 6 years. Cumulative graft survival at 5 years was 81% for the younger donor group compared to 98% for the older donor group (p < .05). At 8 years, cumulative graft survival for donors <6 years was 74%. As for the mean estimated graft survival, it was 11.52 years for the younger donor group and 14.51 years for older donors. During follow-up, the younger donor group presented greater renal enlargement and need for antiproteinuric therapy. The older donors group had a higher GFR during the first year of follow-up, which then equalized in both groups. There were no statistically significant differences in the incidence of acute or chronic rejection, acute pyelonephritis, acute renal failure or surgical or tumor complications. CONCLUSIONS Renal transplants of grafts equal to or less than 6 years old have good short-term and acceptable long-term results in pediatric patients.
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Affiliation(s)
- Carla Ramirez-Amoros
- Department of Paediatric Surgery, La Paz Children's University Hospital, Madrid, Spain
| | - Maria San Basilio
- Department of Paediatric Surgery, La Paz Children's University Hospital, Madrid, Spain
| | - Virginia Amesty
- Department of Paediatric Urology, La Paz Children's University Hospital, Madrid, Spain
| | - Susana Rivas
- Department of Paediatric Urology, La Paz Children's University Hospital, Madrid, Spain
| | - Roberto Lobato
- Department of Paediatric Urology, La Paz Children's University Hospital, Madrid, Spain
| | | | - Pedro Lopez-Pereira
- Department of Paediatric Urology, La Paz Children's University Hospital, Madrid, Spain
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29
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Assfalg V, Miller G, Stocker F, Hüser N, Hartmann D, Heemann U, Tieken I, Zanen W, Vogelaar S, Rosenkranz AR, Schneeberger S, Függer R, Berlakovich G, Ysebaert DR, Jacobs-Tulleneers-Thevissen D, Mikhalski D, van Laecke S, Kuypers D, Mühlfeld AS, Viebahn R, Pratschke J, Melchior S, Hauser IA, Jänigen B, Weimer R, Richter N, Foller S, Schulte K, Kurschat C, Harth A, Moench C, Rademacher S, Nitschke M, Krämer BK, Renders L, Koliogiannis D, Pascher A, Hoyer J, Weinmann-Menke J, Schiffer M, Banas B, Hakenberg O, Schwenger V, Nadalin S, Lopau K, Piros L, Nemes B, Szakaly P, Bouts A, Bemelman FJ, Sanders JS, de Vries APJ, Christiaans MHL, Hilbrands L, van Zuilen AD, Arnol M, Stippel D, Wahba R. Rescue Allocation Modes in Eurotransplant Kidney Transplantation: Recipient Oriented Extended Allocation Versus Competitive Rescue Allocation-A Retrospective Multicenter Outcome Analysis. Transplantation 2024; 108:1200-1211. [PMID: 38073036 DOI: 10.1097/tp.0000000000004878] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
BACKGROUND Whenever the kidney standard allocation (SA) algorithms according to the Eurotransplant (ET) Kidney Allocation System or the Eurotransplant Senior Program fail, rescue allocation (RA) is initiated. There are 2 procedurally different modes of RA: recipient oriented extended allocation (REAL) and competitive rescue allocation (CRA). The objective of this study was to evaluate the association of patient survival and graft failure with RA mode and whether or not it varied across the different ET countries. METHODS The ET database was retrospectively analyzed for donor and recipient clinical and demographic characteristics in association with graft outcomes of deceased donor renal transplantation (DDRT) across all ET countries and centers from 2014 to 2021 using Cox proportional hazards methods. RESULTS Seventeen thousand six hundred seventy-nine renal transplantations were included (SA 15 658 [89%], REAL 860 [4.9%], and CRA 1161 [6.6%]). In CRA, donors were older, cold ischemia times were longer, and HLA matches were worse in comparison with REAL and especially SA. Multivariable analyses showed comparable graft and recipient survival between SA and REAL; however, CRA was associated with shorter graft survival. Germany performed 76% of all DDRTs after REAL and CRA and the latter mode reduced waiting times by up to 2.9 y. CONCLUSIONS REAL and CRA are used differently in the ET countries according to national donor rates. Both RA schemes optimize graft utilization, lead to acceptable outcomes, and help to stabilize national DDRT programs, especially in Germany.
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Affiliation(s)
- Volker Assfalg
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Surgery, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Gregor Miller
- Department of Mathematics, Technical University of Munich, Garching, Germany
| | - Felix Stocker
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Surgery, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Norbert Hüser
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Surgery, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Daniel Hartmann
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Surgery, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Uwe Heemann
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Nephrology, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, München, Germany
| | - Ineke Tieken
- Eurotransplant International Foundation, Leiden, the Netherlands
| | - Wouter Zanen
- Eurotransplant International Foundation, Leiden, the Netherlands
| | - Serge Vogelaar
- Eurotransplant International Foundation, Leiden, the Netherlands
| | - Alexander R Rosenkranz
- Department of Internal Medicine, Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Stefan Schneeberger
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Reinhold Függer
- Department of Surgery, Krankenhaus der Elisabethinen and Johannes Kepler University, Linz, Austria
| | | | - Dirk R Ysebaert
- Department of HPB and Transplantation Surgery, Antwerp University Hospital and University of Antwerp, Edegem, Belgium
| | | | - Dimitri Mikhalski
- Department of Abdominal Surgery and Transplantation, Hôpital Erasme, ULB, Brussels, Belgium
| | | | - Dirk Kuypers
- Department of Nephrology and Renal Transplantation, University Hospitals Leuven, Leuven, Belgium
| | - Anja S Mühlfeld
- Department of Nephrology, Uniklinik RWTH Aachen, Aachen, Germany
| | - Richard Viebahn
- Chirurgische Klinik, Universitätsklinikum Knappschaftskrankenhaus, Bochum, Germany
| | - Johann Pratschke
- Chirurgische Klinik CCM/CVK, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Ingeborg A Hauser
- Department of Nephrology, University Clinic Frankfurt, Frankfurt am Main, Germany
| | - Bernd Jänigen
- Department of General and Digestive Surgery, Transplant Unit, Freiburg, Germany
| | - Rolf Weimer
- Department of Internal Medicine, Nephrology/Renal Transplantation, University of Giessen, Giessen, Germany
| | - Nicolas Richter
- Medizinische Hochschule Hannover, Allgemein-, Viszeral- und Transplantationschirurgie, Hannover, Germany
| | - Susan Foller
- Department of Urology, Jena University Hospital, Jena, Germany
| | - Kevin Schulte
- Department of Nephrology and Hypertensiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Christine Kurschat
- Department II of Internal Medicine and Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Ana Harth
- Medizinische Klinik I Merheim, Kliniken der Stadt Köln, Klinikum der Universität Witten/Herdecke, Köln, Germany
| | - Christian Moench
- General-, Visceral- and Transplantation Surgery, Westpfalz-Klinikum, Kaiserslautern, Germany
| | - Sebastian Rademacher
- Department of Visceral, Transplantation, Thoracic Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Martin Nitschke
- Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Bernhard K Krämer
- Vth Department of Medicine, University Hospital Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Lutz Renders
- TransplanTUM Munich Transplant Center, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Nephrology, Technical University of Munich, TUM School of Medicine, Klinikum rechts der Isar, München, Germany
| | - Dionysios Koliogiannis
- Department of General, Visceral, and Transplant Surgery, LMU University of Munich, Munich, Germany
| | - Andreas Pascher
- Department of General, Visceral, and Transplant Surgery, UKM Muenster, Münster, Germany
| | - Joachim Hoyer
- Department of Internal Medicine and Nephrology, University Medical Center, Philipps University Marburg, Marburg, Germany
| | - Julia Weinmann-Menke
- I. Department of Medicine, Division of Nephrology, Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Mario Schiffer
- Nephrology and Hypertension, Friedrich-Alexander-University Erlangen, Erlangen, Germany
| | - Bernhard Banas
- Abteilung für Nephrologie, Universitäres Transplantationszentrum, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Oliver Hakenberg
- Department of Urology, Rostock University Medical Centre, Rostock, Germany
| | - Vedat Schwenger
- Department of Nephrology and Transplant Center, Klinikum Stuttgart, Stuttgart, Germany
| | - Silvio Nadalin
- Department of General, Visceral and Transplant Surgery, University Hospital Tübingen, Tübingen, Germany
| | - Kai Lopau
- Department of Internal Medicine, Division of Nephrology, University of Wuerzburg-Kidney Transplant Program, Wuerzburg, Germany
| | - Laszlo Piros
- Department of Surgery, Transplantation and Gastroenterology, Semmelweis University, Budapest, Hungary
| | - Balazs Nemes
- Department of Organ Transplantation, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Peter Szakaly
- Department of Surgery, Medical School, University of Pécs, Pécs, Hungary
| | - Antonia Bouts
- Pediatric Nephrology Department, Emma Children's Hospital, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Frederike J Bemelman
- Department of Nephrology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Jan S Sanders
- Departement of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Aiko P J de Vries
- Department of Medicine, Division of Nephrology, Leiden University Medical Center and Transplant Center, Leiden, the Netherlands
| | - Maarten H L Christiaans
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Luuk Hilbrands
- Department of Nephrology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Arjan D van Zuilen
- Department of Nephrology and Hypertension, UMC Utrecht, Utrecht, the Netherlands
| | - Miha Arnol
- Department of Nephrology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Dirk Stippel
- Department of Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Roger Wahba
- Department of Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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Ashoor IF, Al-Akash S, Kizilbash S, Moudgil A, Puliyanda D, Ranabothu S, Shi Y, Dharnidharka V. Effect of pre-emptive rituximab on EBV DNA levels and prevention of post-transplant lymphoproliferative disorder in pediatric kidney transplant recipients: A case series from the pediatric nephrology research consortium. Pediatr Transplant 2024; 28:e14743. [PMID: 38566336 DOI: 10.1111/petr.14743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/16/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND There are scant data on the effect of rituximab on EBV DNA levels and prevention of post-transplant lymphoproliferative disorder (PTLD) in pediatric kidney transplant recipients with EBV DNAemia. METHODS Kidney transplant recipients with EBV DNAemia treated with rituximab to prevent PTLD between 7/1999 and 7/2019 at five pediatric centers were included. Those with confirmed PTLD at the onset of rituximab were excluded. Primary outcomes included percentage change in EBV DNAemia and occurrence of PTLD post rituximab. RESULTS Twenty-six pediatric kidney transplant recipients were included. Median age at transplant was 4 years (IQR 2.1-10.3). EBV DNA load monitoring by qPCR was performed at 1-3 month intervals. EBV DNAemia onset occurred at a median of 73 days post-transplant (IQR 52-307), followed by DNAemia peak at a median of 268 days (IQR 112-536). Rituximab was administered at a median of 9 days post peak (IQR 0-118). Rituximab regimens varied; median dose 375 mg/m2 (IQR 375-439) weekly for 1-4 doses per course. Following rituximab, EBV DNA load decreased to <10% of baseline at 120 days in 20/26 patients; however, only 30% achieved complete resolution at last follow-up (median 2094 days post-transplant [IQR 1538-3463]). Two (7%) developed PTLD at 915 and 1713 days post rituximab. All recipients had functioning grafts. One death occurred in a child with PTLD following remission due to unrelated reasons. CONCLUSIONS In the largest pediatric kidney transplant recipient case series with EBV DNAemia given rituximab to prevent PTLD, rituximab achieved a short-term reduction in DNA load; however, recurrent DNAemia is common.
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Affiliation(s)
- Isa F Ashoor
- Division of Nephrology, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Samhar Al-Akash
- Division of Nephrology, Department of Pediatrics, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Sarah Kizilbash
- Division of Nephrology, Department of Pediatrics, University of Minnesota Children's Hospital, Minneapolis, Minnesota, USA
| | - Asha Moudgil
- Division of Nephrology, Department of Pediatrics, Children's National Medical Center, Washington, DC, USA
| | - Dechu Puliyanda
- Division of Nephrology, Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Saritha Ranabothu
- Division of Nephrology, Department of Pediatrics, Arkansas Children's Hospital, Little Rock, Arkansas, USA
| | - Yi Shi
- Division of Nephrology, Department of Pediatrics, Children's National Medical Center, Washington, DC, USA
| | - Vikas Dharnidharka
- Division of Nephrology, Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri, USA
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Report of the Standardized Outcomes in Nephrology-transplant Consensus Workshop on Establishing a Core Outcome Measure for Infection in Kidney Transplant Recipients: Erratum. Transplantation 2024; 108:e79. [PMID: 38659120 DOI: 10.1097/TP.0000000000005012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
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Nayak A, Ettenger R, Wesseling-Perry K. Recurrent disease after pediatric renal transplantation. Pediatr Transplant 2024; 28:e14676. [PMID: 38650536 DOI: 10.1111/petr.14676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/15/2023] [Accepted: 11/30/2023] [Indexed: 04/25/2024]
Abstract
BACKGROUND Recurrent disease after kidney transplant remains an important cause of allograft failure, accounting for 7-8% of graft loss and ranking as the fifth most common cause of allograft loss in the pediatric population. Although the pathophysiology of many recurrent diseases is incompletely understood, recent advances in basic science and therapeutics are improving outcomes and changing the course of several of these conditions. METHODS Review of the literature. RESULTS We discuss the diagnosis and management of recurrent disease. CONCLUSION We highlight new insights into the pathophysiology and treatment of post-transplant primary hyperoxaluria, focal segmental glomerulosclerosis, immune complex glomerulonephritis, C3 glomerulopathy, lupus nephritis, atypical hemolytic uremic syndrome, and IgA nephropathy.
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Affiliation(s)
- Anjali Nayak
- Phoenix Children's Hospital and the University of Arizona College of Medicine, Tucson, Arizona, USA
| | - Robert Ettenger
- Mattel Children's Hospital and the University of California at Los Angeles, Los Angeles, California, USA
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Li M, Hu X, Li Y, Chen G, Ding CG, Tian X, Tian P, Xiang H, Pan X, Ding X, Xue W, Zheng J, Ding C. Development and validation of a novel nomogram model for predicting delayed graft function in deceased donor kidney transplantation based on pre-transplant biopsies. BMC Nephrol 2024; 25:138. [PMID: 38641807 PMCID: PMC11031976 DOI: 10.1186/s12882-024-03557-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 03/21/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Delayed graft function (DGF) is an important complication after kidney transplantation surgery. The present study aimed to develop and validate a nomogram for preoperative prediction of DGF on the basis of clinical and histological risk factors. METHODS The prediction model was constructed in a development cohort comprising 492 kidney transplant recipients from May 2018 to December 2019. Data regarding donor and recipient characteristics, pre-transplantation biopsy results, and machine perfusion parameters were collected, and univariate analysis was performed. The least absolute shrinkage and selection operator regression model was used for variable selection. The prediction model was developed by multivariate logistic regression analysis and presented as a nomogram. An external validation cohort comprising 105 transplantation cases from January 2020 to April 2020 was included in the analysis. RESULTS 266 donors were included in the development cohort, 458 kidneys (93.1%) were preserved by hypothermic machine perfusion (HMP), 96 (19.51%) of 492 recipients developed DGF. Twenty-eight variables measured before transplantation surgery were included in the LASSO regression model. The nomogram consisted of 12 variables from donor characteristics, pre-transplantation biopsy results and machine perfusion parameters. Internal and external validation showed good discrimination and calibration of the nomogram, with Area Under Curve (AUC) 0.83 (95%CI, 0.78-0.88) and 0.87 (95%CI, 0.80-0.94). Decision curve analysis demonstrated that the nomogram was clinically useful. CONCLUSION A DGF predicting nomogram was developed that incorporated donor characteristics, pre-transplantation biopsy results, and machine perfusion parameters. This nomogram can be conveniently used for preoperative individualized prediction of DGF in kidney transplant recipients.
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Affiliation(s)
- Meihe Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaojun Hu
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Yang Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Guozhen Chen
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Chen-Guang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaohui Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Puxun Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Heli Xiang
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Pan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Wujun Xue
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Jin Zheng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Chenguang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
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Hirschhorn JW, Sasaki MM, Kegl A, Akter T, Dickerson T, Narlieva M, Nhan N, Liu T, Jim P, Young S, Orner E, Thwe P, Lucic D, Goldstein DY. Performance evaluation of the high-throughput quantitative Alinity m BK virus assay. J Clin Microbiol 2024; 62:e0135423. [PMID: 38526061 PMCID: PMC11005350 DOI: 10.1128/jcm.01354-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/02/2024] [Indexed: 03/26/2024] Open
Abstract
BK virus (BKV) infection or reactivation in immunocompromised individuals can lead to adverse health consequences including BKV-associated nephropathy (BKVAN) in kidney transplant patients and BKV-associated hemorrhagic cystitis (BKV-HC) in allogeneic hematopoietic stem cell transplant recipients. Monitoring BKV viral load plays an important role in post-transplant patient care. This study evaluates the performance of the Alinity m BKV Investigational Use Only (IUO) assay. The linearity of the Alinity m BKV IUO assay had a correlation coefficient of 1.000 and precision of SD ≤ 0.25 Log IU/mL for all panel members tested (2.0-7.3 Log IU/mL). Detection rate at 50 IU/mL was 100%. Clinical plasma specimens tested comparing Alinity m BKV IUO to ELITech MGB Alert BKV lab-developed test (LDT) on the Abbott m2000 platform using specimen extraction protocols for DNA or total nucleic acid (TNA) resulted in coefficient of correlation of 0.900 and 0.963, respectively, and mean bias of 0.03 and -0.54 Log IU/mL, respectively. Alinity m BKV IUO compared with Altona RealStar BKV and Roche cobas BKV assays demonstrated coefficient of correlation of 0.941 and 0.980, respectively, and mean bias of -0.47 and -0.31 Log IU/mL, respectively. Urine specimens tested on Alintiy m BKV IUO and ELITech BKV LDT using TNA specimen extraction had a coefficient of correlation of 0.917 and mean bias of 0.29 Log IU/mL. The Alinity m BKV IUO assay was performed with high precision across the dynamic range and correlated well with other available BKV assays. IMPORTANCE BK virus (BKV) in transplant patients can lead to adverse health consequences. Viral load monitoring is important in post-transplant patient care. This study evaluates the Alinity m BKV assay with currently available assays.
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Affiliation(s)
- Julie W. Hirschhorn
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Mark M. Sasaki
- Molecular Diagnostics of Abbott, Des Plaines, Illinois, USA
| | - April Kegl
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Tanjina Akter
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Tanisha Dickerson
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Momka Narlieva
- Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
| | - Nhi Nhan
- Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
| | - Tianxi Liu
- Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
| | - Patricia Jim
- TriCore Reference Laboratories, Albuquerque, New Mexico, USA
| | - Stephen Young
- TriCore Reference Laboratories, Albuquerque, New Mexico, USA
| | - Erika Orner
- Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
| | - Phyu Thwe
- Department of Pathology, Montefiore Medical Center, Bronx, New York, USA
| | - Danijela Lucic
- Molecular Diagnostics of Abbott, Des Plaines, Illinois, USA
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Saleh QW, Mohammadnejad A, Tepel M. FOXP3 full length splice variant is associated with kidney allograft tolerance. Front Immunol 2024; 15:1389105. [PMID: 38660296 PMCID: PMC11040551 DOI: 10.3389/fimmu.2024.1389105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/29/2024] [Indexed: 04/26/2024] Open
Abstract
Background Progressive decline of allograft function leads to premature graft loss. Forkhead box P3 (FOXP3), a characteristic gene of T-regulatory cells, is known to be essential for auto-antigen tolerance. We assessed the hypothesis that low FOXP3 mRNA splice variant levels in peripheral blood cells early after transplantation are associated with progressive allograft injury. Methods Blood samples were prospectively collected from 333 incident kidney transplant recipients on the first and 29th postoperative day. We used quantitative polymerase chain reaction to determine transcripts of 3 isotypes of FOXP3 splice variants, including pre-mature FOXP3 and full length FOXP3 (FOXP3fl). We investigated the association between FOXP3 splice variant levels and the declines in estimated glomerular filtration rate (eGFR) of more than 5ml/min/1.73m2 within the first-year post-transplant using logistic regression. Results We observed lower FOXP3fl levels in recipients with declining eGFR (N = 132) than in recipients with stable eGFR (N = 201), (logarithmic value -4.13 [IQR -4.50 to -3.84] vs -4.00 [4.32 to -3.74], p=0.02). In ad hoc analysis pre-transplant FOXP3fl levels were similar in both groups. The association between FOXP3fl and declining eGFR was confirmed by multivariable analysis adjusted for potential confounding factors (Odds Ratio 0.51, 95% confidence interval 0.28 to 0.91: p=0.02). When stratifying FOXP3fl levels into quartiles, recipients with lower day1 FOXP3fl had the highest rate of declining eGFR (p=0.04). Conclusion Low FOXP3fl splice variant levels at the first postoperative day in kidney transplant recipients were associated with severe decline of eGFR, a well-known surrogate for hard endpoints.
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Affiliation(s)
- Qais W. Saleh
- Department of Nephrology, Odense University Hospital, Odense, Denmark
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Afsaneh Mohammadnejad
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Martin Tepel
- Department of Nephrology, Odense University Hospital, Odense, Denmark
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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Saowapa S, Polpichai N, Siladech P, Wannaphut C, Tanariyakul M, Wattanachayakul P, Lalitnithi P. CLO24-067: Evaluating Kaposi Sarcoma in Kidney Transplant Patients: A Systematic Review and Meta-Analysis. J Natl Compr Canc Netw 2024; 22:CLO24-067. [PMID: 38579827 DOI: 10.6004/jnccn.2023.7268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Affiliation(s)
- Sakditad Saowapa
- 1Department of Medicine, Texas Tech University Health Sciences Center at Lubbock, Lubbock, TX
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Kim YJ, Lee SW, Kim MS, Kim YJ, Choi JY, Cho JH, Kim CD, Kim YL, Yun WS, Huh S, Lim JH, Park SH. Anuria after kidney transplantation diagnosed as early recurrence of focal segmental glomerulosclerosis combined with acute calcineurin inhibitor nephrotoxicity: a case report and literature review. BMC Nephrol 2024; 25:123. [PMID: 38580974 PMCID: PMC10998363 DOI: 10.1186/s12882-024-03524-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/27/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Primary focal segmental glomerulosclerosis (FSGS) is a glomerular disease that sometimes recurs in patients after kidney transplantation (KT) and increases the risk of graft loss. Proteinuria is a common early sign of recurrent FSGS, but an abrupt decrease in urine volume is rare. Herein, we report a patient with early recurrence of FSGS with anuria following KT. CASE PRESENTATION A 55-year-old man with end-stage kidney disease caused by primary FSGS experienced anuria on postoperative day 2 following deceased donor KT. Laboratory results revealed that serum tacrolimus trough levels were consistently elevated at the time of anuria. At first, we considered acute calcineurin inhibitor (CNI) nephrotoxicity based on graft biopsy on light microscopy, laboratory findings, and clinical courses. However, the allograft function did not recover even after discontinuation of CNI, and recurrent FSGS was diagnosed 2 weeks later on electron microscopy. A total of 13 sessions of plasmapheresis and two administrations of rituximab (375 mg/m2) were required to treat recurrent FSGS. The patient achieved a partial response, and the spot urine protein-to-creatinine ratio decreased from 15.5 g/g creatinine to 5.2 g/g creatinine. At 5 months following KT, the serum creatinine level was stable at 1.15 mg/dL. CONCLUSIONS These findings highlight that anuria can occur in cases of early recurrence of FSGS combined with acute CNI nephrotoxicity.
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Affiliation(s)
- Yoon-Ju Kim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Seong-Wook Lee
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Mee-Seon Kim
- Department of Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Yong-Jin Kim
- Department of Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Ji-Young Choi
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Jang-Hee Cho
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Chan-Duck Kim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Yong-Lim Kim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Woo-Sung Yun
- Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Seung Huh
- Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea
| | - Jeong-Hoon Lim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea.
| | - Sun-Hee Park
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, 41944, Daegu, South Korea.
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Altulea D, van den Born JC, Diepstra A, Bungener L, Terpstra D, Hepkema BG, Lammerts R, Heeringa P, Heidt S, Otten H, Reteig L, Karahan GE, Berger SP, Sanders JS. Memory B-cell derived donor-specific antibodies do not predict outcome in sensitized kidney transplant recipients: a retrospective single-center study. Front Immunol 2024; 15:1360627. [PMID: 38646525 PMCID: PMC11026632 DOI: 10.3389/fimmu.2024.1360627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/18/2024] [Indexed: 04/23/2024] Open
Abstract
Background Repeated exposure to sensitizing events can activate HLA-specific memory B cells, leading to the production of donor-specific memory B cell antibodies (DSAm) that pose a risk for antibody-mediated rejection (ABMR) in kidney transplant recipients (KTRs). This single-center retrospective study aimed to identify DSAm and assess their association with outcomes in a cohort of KTRs with pretransplant serum donor-specific antibodies (DSA). Methods We polyclonally activated pretransplant peripheral blood mononuclear cells (PBMCs) from 60 KTRs in vitro, isolated and quantified IgG from the culture supernatant using ELISA, and analyzed the HLA antibodies of eluates with single antigen bead (SAB) assays, comparing them to the donor HLA typing for potential DSAm. Biopsies from 41 KTRs were evaluated for rejection based on BANFF 2019 criteria. Results At transplantation, a total of 37 DSAm were detected in 26 of 60 patients (43%), of which 13 (35%) were found to be undetectable in serum. No significant association was found between pretransplant DSAm and ABMR (P=0.53). Similar results were observed in a Kaplan-Meier analysis for ABMR within the first year posttransplant (P=0.29). Additionally, MFI levels of DSAm showed no significant association with ABMR (P=0.28). Conclusion This study suggests no significant association between DSAm and biopsy-proven clinical ABMR. Further prospective research is needed to determine whether assessing DSAm could enhance existing immunological risk assessment methods for monitoring KTRs, particularly in non-sensitized KTRs.
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Affiliation(s)
- Dania Altulea
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Joost C. van den Born
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Arjan Diepstra
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Laura Bungener
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Transplantation Immunology, Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Dagmar Terpstra
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Bouke G. Hepkema
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Transplantation Immunology, Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Rosa Lammerts
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Transplantation Immunology, Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Peter Heeringa
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Sebastiaan Heidt
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Henny Otten
- Center of Translational Immunology, University Medical Center Utrecht (UMC Utrecht), Utrecht, Netherlands
| | - Leon Reteig
- Center of Translational Immunology, University Medical Center Utrecht (UMC Utrecht), Utrecht, Netherlands
| | - Gonca E. Karahan
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Stefan P. Berger
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jan-Stephan Sanders
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Wang R, Reed RD, Price G, Abraham P, Lewis M, McMullin JL, MacLennan P, Killian C, Locke JE, Ong S, Kumar V, Gillis A, Lindeman B, Chen H, Fazendin J. Treatment of Hypercalcemic Hyperparathyroidism After Kidney Transplantation Is Associated With Improved Allograft Survival. Oncologist 2024; 29:e467-e474. [PMID: 38006197 PMCID: PMC10994253 DOI: 10.1093/oncolo/oyad314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Hyperparathyroidism (HPT) and malignancy are the most common causes of hypercalcemia. Among kidney transplant (KT) recipients, hypercalcemia is mostly caused by tertiary HPT. Persistent tertiary HPT after KT is associated with allograft failure. Previous studies on managing tHPT were subjected to survivor treatment selection bias; as such, the impact of tertiary HPT treatment on allograft function remained unclear. We aim to assess the association between hypercalcemic tertiary HPT treatment and kidney allograft survival. MATERIALS AND METHODS We identified 280 KT recipients (2015-2019) with elevated post-KT adjusted serum calcium and parathyroid hormone (PTH). KT recipients were characterized by treatment: cinacalcet, parathyroidectomy, or no treatment. Time-varying Cox regression with delayed entry at the time of first elevated post-KT calcium was conducted, and death-censored and all-cause allograft failure were compared by treatment groups. RESULTS Of the 280 recipients with tHPT, 49 underwent PTx, and 98 received cinacalcet. The median time from KT to first elevated calcium was 1 month (IQR: 0-4). The median time from first elevated calcium to receiving cinacalcet and parathyroidectomy was 0(IQR: 0-3) and 13(IQR: 8-23) months, respectively. KT recipients with no treatment had shorter dialysis vintage (P = .017) and lower PTH at KT (P = .002), later onset of hypercalcemia post-KT (P < .001). Treatment with PTx (adjusted hazard ratio (aHR) = 0.18, 95%CI 0.04-0.76, P = .02) or cinacalcet (aHR = 0.14, 95%CI 0.004-0.47, P = .002) was associated with lower risk of death-censored allograft failure. Moreover, receipt of PTx (aHR = 0.28, 95%CI 0.12-0.66, P < .001) or cinacalcet (aHR = 0.38, 95%CI 0.22-0.66, P < .001) was associated with lower risk of all-cause allograft failure. CONCLUSIONS This study demonstrates that treatment of hypercalcemic tertiary HPT post-KT is associated with improved allograft survival. Although these findings are not specific to hypercalcemia of malignancy, they do demonstrate the negative impact of hypercalcemic tertiary HPT on kidney function. Hypercalcemic HPT should be screened and aggressively treated post-KT.
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Affiliation(s)
- Rongzhi Wang
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Rhiannon D Reed
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Griffin Price
- School of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Peter Abraham
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Marshall Lewis
- School of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Jessica Liu McMullin
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Paul MacLennan
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Cozette Killian
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Jayme E Locke
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Song Ong
- Department of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Vineeta Kumar
- Department of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Andrea Gillis
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Brenessa Lindeman
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Herbert Chen
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Jessica Fazendin
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
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Arabi Z, El Sarrag MIM, Arabi T, Alqudsi M, Shafqat A. Association of Coronary Calcium Score on Cardiac PET During Pre-Kidney Transplant Assessment with Persistent Hyperparathyroidism: A Retrospective Study. Ann Transplant 2024; 29:e943532. [PMID: 38561931 PMCID: PMC10998472 DOI: 10.12659/aot.943532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/12/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Secondary hyperparathyroidism and coronary calcifications are common complications in chronic kidney disease. However, the relation between coronary calcium score (CCS) and persistent hyperparathyroidism (pHPT) after kidney transplantation (KT) remains unknown. MATERIAL AND METHODS This was a single-center retrospective study of KT candidates from January 2017 to May 2020. We collected patients' demographics, cardiovascular (CV) risk factors, and the findings of pre-KT CV imaging. We also collected parathyroid hormone (PTH) values before KT, at 1-6 months, 6-12 months, and 12-24 months after KT. We defined pHPT as PTH ≥25.5 pmol/L after 12 months post-KT. RESULTS A total of 111 KT recipients (KTRs) with a mean age of 50.4 years were included, of which 62.2% were men and 77.5% were living-donor KTRs. Dialysis modality used before KT was peritoneal dialysis in 9.9% and hemodialysis in 82.9%. Dialysis vintage was 3±2.9 years. The prevalence of pHPT was 24.3% (n=27), and the prevalence of severe coronary calcifications (CCS >400 Agatston units) was 19.8% (n=22). PTH values at baseline, 1-6 months, 6-12 months, and 12-24 months were not different among between CCS >400 or CCS <400 groups. However, pHPT after KT was significantly more prevalent in KTRs with severe CCS (37% vs 14.3%, p=0.014). Severe CCS was associated with less improvement of PTH values after KT (r=0.288, p=0.020). Otherwise, the findings of cardiac PET and coronary angiogram were not significantly different between pHPT and non-pHPT patients. CCS >400 was independently associated with pHPT after transplant (aOR=18.8, P=0.012). CONCLUSIONS Severe CCS on pre-KT cardiac assessment is associated with pHPT after KT.
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Affiliation(s)
- Ziad Arabi
- Division of Nephrology, Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | | | - Tarek Arabi
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Muhannad Alqudsi
- Division of Nephrology, Department of Medicine, King Abdulaziz Medical City, Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Areez Shafqat
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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Khondker A, Ahmad I, Kim K, Malik S, Kim JK, Chua M, Richter J, Chan JY, Baker LA, Lorenzo AJ, Rickard M. Kidney function and transplants in prune belly syndrome: a scoping review. Pediatr Nephrol 2024; 39:1053-1063. [PMID: 37968538 DOI: 10.1007/s00467-023-06209-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 11/17/2023]
Abstract
BACKGROUND Children with prune belly syndrome (PBS) are at higher risk of developing kidney dysfunction and requiring kidney replacement therapy (KRT). While studies have described surgical and survival outcomes in these populations, there has yet to be a focused synthesis of evidence regarding kidney outcomes in this population. Here, the focus of this scoping review was to highlight knowledge gaps and report standards on kidney outcomes in PBS of all ages. METHODS Following scoping review methodology, EMBASE, MEDLINE, and Scopus were searched for peer-reviewed literature that describe kidney outcomes in PBS. All studies with a broad set of kidney outcomes (such as kidney function measures, chronic kidney disease (CKD), KRT and associated outcomes) were included. Findings were summarized and qualitatively synthesized. RESULTS Of the 436 unique records identified, 25 were included for synthesis. A total of 17 studies (441 patients) reported on kidney insufficiency outcomes, with an estimated prevalence of CKD ranging from 8 to 66%. A total of 15 studies (314 patients) described KRT, primary kidney transplant, and outcomes. Of these, the age for KRT ranged from 4 to 21 years, and graft survival ranged from 22 to 87% by last follow-up (range 1.3-27 years). CONCLUSIONS There is significant variability in studies reporting kidney outcomes in PBS which limits meaningful synthesis. There is a need for future studies with comprehensive reporting of confounders and drivers for kidney insufficiency in PBS.
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Affiliation(s)
- Adree Khondker
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Ihtisham Ahmad
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Kellie Kim
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Shamir Malik
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Jin K Kim
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Michael Chua
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Juliane Richter
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Justin Yh Chan
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Linda A Baker
- Division of Pediatric Urology, Department of Surgery, Nationwide Children's Hospital, Columbus, OH, USA
| | - Armando J Lorenzo
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Mandy Rickard
- Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
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Berto CG, Kotton CN. The Other Pandemic From the Pandemic: A Higher Frequency of Long COVID After Omicron in Kidney Transplant Recipients. Transplantation 2024; 108:841-842. [PMID: 37953471 DOI: 10.1097/tp.0000000000004859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Affiliation(s)
- Cesar G Berto
- Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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Putz J, Kestel V, Herout R, Borkowetz A, Leike S, Thomas C, Baunacke M. [Urogenital tumors following kidney transplantation-monocentric analysis of incidences and overview of urological preventive measures]. Urologie 2024; 63:341-350. [PMID: 38512472 PMCID: PMC10990984 DOI: 10.1007/s00120-024-02317-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/07/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Urogenital tumors are among the most common solid malignancies after kidney transplantation (TX). OBJECTIVE We analyzed the incidence and mortality of urogenital tumors after kidney TX in our own patient population as well as answered the question of recommended follow-up necessity and frequency in this cohort. MATERIALS AND METHODS Retrospective monocentric data collection of tumor diseases and the most common urogenital tumors after kidney TX at the Transplant Center Dresden between 2010 and 2020 was done. From this, we derived recommendations for a useful follow-up concept. RESULTS A total of 13% (93/710) of kidney TX patients developed a neoplasm. Older patients (60.1 ± 10.6 vs. 53.8 ± 12.5; p < 0.001), with higher Charlson scores (≥ 4: 68% vs. 46%; p < 0.001) and a previous tumor history (18% vs. 8%; p < 0.001) were more likely to develop a neoplasm after transplantation. In the multivariate analysis, previous tumor history was found to be an independent predictor of tumor development after renal transplantation (OR 2.2; 95%-KI [1.2-4.1]; p = 0.01). Urogenital tumors accounted for 30% (28/93) of all malignancies. Renal cell carcinoma of the native kidney was the most common (n = 12) neoplasm, followed by prostate cancer (n = 9). CONCLUSION Most solid malignancies after kidney TX arise from the urinary tract. Due to their frequency, there is an urgent need for specialized urological therapy and long-term follow-up care. Even before listing for TX, risk factors can be recognized and individual concepts for follow-up care can be developed.
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Affiliation(s)
- J Putz
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland.
| | - V Kestel
- Medizinische Fakultät, Universitätsklinikum Carl Gustav Carus der Technischen Universität Dresden, Dresden, Deutschland
| | - R Herout
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - A Borkowetz
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - S Leike
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - C Thomas
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - M Baunacke
- Klinik und Poliklinik für Urologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
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Mac Curtain BM, Qian W, Temperley HC, O'Mahony A, Ng ZQ, He B. Incisional hernias post renal transplant: a systematic review and meta-analysis. Hernia 2024; 28:301-319. [PMID: 37715026 DOI: 10.1007/s10029-023-02879-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/29/2023] [Indexed: 09/17/2023]
Abstract
PURPOSE Incisional hernia (IH) post renal transplant (RT) is relatively uncommon and can be challenging to manage clinically due to the presence of the kidney graft and patient immunosuppression. This systematic review and meta-analysis synthesises the current literature in relation to IH rates, risk factors and outcomes post RT. METHODS PubMed, EMBASE, and Cochrane Central Registry of Controlled Trials (CENTRAL) were searched up to July 2023. The most up to date Preferred Reporting Items for Systematic Reviews and Meta Analyses guidelines were followed. Pertinent clinical information was synthesised. A meta-analysis of the pooled proportions of IH rates, the rates of patients requiring surgical repair and the rates of recurrence post RT are reported. RESULTS Twenty studies comprising 16,018 patients were included in this analysis. The pooled rate of IH occurrence post RT was 4% (CI 3-5%). The pooled rate of IH repair post RT was 61% (CI 14-100%). The pooled rate of IH recurrence after repair was 16% (CI 9-23%). Risk factors identified for IH development post RT are BMI, immunosuppression, age, smoking, incision type, reoperation, concurrent abdominal wall hernia, lymphocele formation and pulmonary disease. CONCLUSIONS IH post RT is uncommon and the majority of IH post RT are repaired surgically on an elective basis.
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Affiliation(s)
- B M Mac Curtain
- School of Medicine, University of Galway, Galway, Ireland.
- Dept. of Surgery, St John of God Subiaco Hospital, Subiaco, WA, Australia.
| | - W Qian
- Dept. of Surgery, St John of God Subiaco Hospital, Subiaco, WA, Australia
| | | | - A O'Mahony
- University Hospital Limerick, Limerick, Ireland
| | - Z Q Ng
- Dept. of General Surgery, Royal Perth Hospital, Perth, WA, Australia
| | - B He
- Renal Surgery and Transplant Unit, Austin Health, Melbourne, VIC, Australia
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Müller-Plathe M, Osmanodja B, Barthel G, Budde K, Eckardt KU, Kolditz M, Witzenrath M. Validation of risk scores for prediction of severe pneumonia in kidney transplant recipients hospitalized with community-acquired pneumonia. Infection 2024; 52:447-459. [PMID: 37985643 PMCID: PMC10954831 DOI: 10.1007/s15010-023-02101-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/22/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE Risk scores for community-acquired pneumonia (CAP) are widely used for standardized assessment in immunocompetent patients and to identify patients at risk for severe pneumonia and death. In immunocompromised patients, the prognostic value of pneumonia-specific risk scores seems to be reduced, but evidence is limited. The value of different pneumonia risk scores in kidney transplant recipients (KTR) is not known. METHODS Therefore, we retrospectively analyzed 310 first CAP episodes after kidney transplantation in 310 KTR. We assessed clinical outcomes and validated eight different risk scores (CRB-65, CURB-65, DS-CRB-65, qSOFA, SOFA, PSI, IDSA/ATS minor criteria, NEWS-2) for the prognosis of severe pneumonia and in-hospital mortality. Risk scores were assessed up to 48 h after admission, but always before an endpoint occurred. Multiple imputation was performed to handle missing values. RESULTS In total, 16 out of 310 patients (5.2%) died, and 48 (15.5%) developed severe pneumonia. Based on ROC analysis, sequential organ failure assessment (SOFA) and national early warning score 2 (NEWS-2) performed best, predicting severe pneumonia with AUC of 0.823 (0.747-0.880) and 0.784 (0.691-0.855), respectively. CONCLUSION SOFA and NEWS-2 are best suited to identify KTR at risk for the development of severe CAP. In contrast to immunocompetent patients, CRB-65 should not be used to guide outpatient treatment in KTR, since there is a 7% risk for the development of severe pneumonia even in patients with a score of zero.
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Affiliation(s)
- Moritz Müller-Plathe
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Bilgin Osmanodja
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Georg Barthel
- Department of Anesthesiology and Operative Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Kai-Uwe Eckardt
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Martin Kolditz
- Division of Pulmonology, Medical Department I, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Martin Witzenrath
- Department of Infectious Diseases, Respiratory Medicine and Critical Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
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Amorim CEN, Cazetta GS, Cristelli MP, Requião-Moura LR, da Silva ER, Pinheiro Vale L, Brito MDMP, Bronzo T, Nakamura MR, Tedesco-Silva H, Medina-Pestana J. Long COVID Among Kidney Transplant Recipients Appears to Be Attenuated During the Omicron Predominance. Transplantation 2024; 108:963-969. [PMID: 37953468 DOI: 10.1097/tp.0000000000004858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
BACKGROUND Omicron variant has been associated with milder cases of COVID-19 among kidney transplant recipients. However, little is known about postacute sequelae, referred to as Long COVID. METHODS Prospective, single-center cohort study investigating prevalence and risk factors for Long COVID among kidney transplant recipients during the omicron predominance in Brazil. The analysis included adult patients with confirmed SARS-CoV-2 infection between January 5, 2022, and July 18, 2022, were alive, had a functioning kidney transplant 3 mo after symptom onset, and answered a telephonic survey about physical complains of Long COVID. RESULTS From the 1529 eligible, 602 (39%) patients responded the survey. Sixteen percent reported a previous SARS-CoV-2 infection, and 85% had been fully vaccinated. The prevalence of Long COVID was 52%, with the most common complaints being weakness (46%), myalgia (41%), dizziness (33%), and headache (31%). Among employed patients, 94% were able to resume their normal work activities. In multivariable analysis, female gender (hazard ratio [HR], 2.14; 95% confidence interval [CI], 1.51-3.02; P < 0.0001), previous SARS-CoV-2 infection (HR, 3.55; 95% CI, 1.91-6.60; P < 0.0001), fatigue (HR, 2.32; 95% CI, 1.18-4.55; P = 0.014), myalgia (HR, 1.48; 95% CI, 1.03-2.15; P = 0.036) during the acute phase, and hospitalization because of COVID-19 (HR, 1.71; 95% CI, 1.06-2.76; P = 0.028) were independently associated with Long COVID. CONCLUSIONS In the "omicron era," Long COVID among kidney transplant recipients exhibited milder characteristics and had a less significant impact on their ability to resume normal life activities. The risk factors for persistent symptoms were similar to those observed in the general population except for the vaccination status, underscoring the importance of closer monitoring in special subgroups.
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Affiliation(s)
| | | | | | - Lucio Roberto Requião-Moura
- Transplant Division, Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
- Nephrology Division, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Ludmila Pinheiro Vale
- Postgraduate Program in Physical Education, Universidade Federal do Maranhão, Maranhão, Brazil
| | | | - Thais Bronzo
- Postgraduate Program in Physical Education, Universidade Federal do Maranhão, Maranhão, Brazil
| | - Monica Rika Nakamura
- Transplant Division, Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
- Nephrology Division, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Helio Tedesco-Silva
- Transplant Division, Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
- Nephrology Division, Universidade Federal de São Paulo, São Paulo, Brazil
| | - José Medina-Pestana
- Transplant Division, Hospital do Rim, Fundação Oswaldo Ramos, São Paulo, Brazil
- Nephrology Division, Universidade Federal de São Paulo, São Paulo, Brazil
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Nasr SH, Valeri AM, Said SM, Sethi S, Nath KA, Lieske JC, Bu L. Clinicopathologic Characteristics, Etiologies, and Outcome of Secondary Oxalate Nephropathy. Mayo Clin Proc 2024; 99:593-606. [PMID: 38310502 PMCID: PMC11017309 DOI: 10.1016/j.mayocp.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 02/05/2024]
Abstract
OBJECTIVE To report the clinicopathologic characteristics, prognostic indicators, prognosis, and transplant outcome of secondary oxalate nephropathy (ON). PATIENTS AND METHODS We performed a retrospective analysis of 113 consecutive patients with secondary ON diagnosed at Mayo Clinic in Rochester, Minnesota, between January 1, 2001, and March 1, 2023. RESULTS The incidence of secondary ON among all native biopsies from Mayo Clinic patients over the study period (n=11,617) was 0.97%. ON was attributed to enteric hyperoxaluria in 60% of the 113 patients (68; most commonly Roux-en-Y gastric bypass), excessive ingestion of foods high in oxalate or oxalate precursors in 23% (26) (most commonly vitamin C), and idiopathic in 17% (19). Most patients presented with acute kidney injury (AKI) (particularly in the ingestion group) or AKI on chronic kidney disease, and 53% (60 of 113) were diabetic. Calcium oxalate crystals were accompanied by acute tubular injury, inflammation, and interstitial fibrosis and tubular atrophy. Concurrent pathologic conditions were present in 53% of the patients (60 of 113), most commonly diabetic nephropathy. After a median follow-up of 36 months, 27% of the patients (30 of 112) had kidney recovery, 19% (21 of 112) had persistent kidney dysfunction, 54% (61 of 112) had development of kidney failure, and 29% (32 of 112) died. The mean kidney survival was worse for patients with a concurrent pathologic lesion (30 months vs 96 months for those without a concurrent pathologic lesion; P<.001). Independent predictors of kidney failure were the degree of interstitial fibrosis and tubular atrophy and nadir estimated glomerular filtration rate but not the degree of crystal deposition. After a median follow-up of 58 months in 23 patients who received kidney transplant, 4 had graft loss (due to ON in 3). The 2-, 5-, and 10-year graft survivals were 90% (18 of 20), 79% (11 of 14), and 50% (6 of 12). CONCLUSION ON is a rare cause of AKI or AKI on chronic kidney disease. Most patients have comorbid pathologic conditions, particularly diabetic nephropathy, which worsen the prognosis. Recurrence in the renal allograft and graft loss may occur if hyperoxaluria is not controlled.
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Affiliation(s)
- Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
| | - Anthony M Valeri
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - Samar M Said
- Department of Pathology, Olmsted Medical Center, Rochester, MN
| | - Sanjeev Sethi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Karl A Nath
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - John C Lieske
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - Lihong Bu
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
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Rampersad C, Kong W, Wiebe C, Balshaw R, Bullard J, Villalobos APC, Trachtenberg A, Shaw J, Karpinski M, Nickerson PW, Ho J. Safety and efficacy of a reduced frequency viral monitoring strategy for Epstein-Barr virus, cytomegalovirus, and BK polyomavirus post-kidney transplant: A quality assurance initiative. Clin Transplant 2024; 38:e15292. [PMID: 38545888 DOI: 10.1111/ctr.15292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/22/2024] [Accepted: 03/06/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND There is variability in recommended viral monitoring protocols after kidney transplant. In response to increased demand for laboratory testing during the COVID-19 pandemic, the Transplant Manitoba Adult Kidney Program updated its monitoring protocols for cytomegalovirus (CMV), Epstein-Barr virus (EBV), and BK polyomavirus (BKV) to a reduced frequency. METHODS This single-center nested case-control study evaluated 252 adult kidney transplant recipients transplanted from 2015 to 2021, with the updated protocols effective on March 19th 2020. Cases included recipients transplanted after the protocol update who developed CMV, EBV, and BKV DNAemia and were matched to controls with DNAemia transplanted prior to the protocol update. The primary outcome was the difference in maximum DNA load titers between cases and matched controls. Secondary outcomes included time to initial DNAemia detection and DNAemia clearance. Safety outcomes of tissue-invasive viral disease were described. RESULTS There were 216 recipients transplanted preupdate and 36 recipients postupdate. There was no difference between cases and controls in maximum or first DNA load titers for EBV, CMV, or BKV. Cases experienced earlier EBV DNAemia detection (26 (IQR 8, 32) vs. 434 (IQR 96, 1184) days, p = .005). Median follow-up was significantly longer for recipients transplanted preupdate (4.3 vs. 1.3 years, p < .0001). After adjusting for follow-up time, there was no difference in DNAemia clearance or tissue-invasive viral disease. CONCLUSION Our findings suggest that reduced frequency viral monitoring protocols may be safe and cost-effective. This quality assurance initiative should be extended to detect longer-term and tissue-invasive disease outcomes.
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Affiliation(s)
- Christie Rampersad
- University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - William Kong
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Chris Wiebe
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
| | - Robert Balshaw
- George and Fay Yee Centre for Healthcare Innovation, Winnipeg, Manitoba, Canada
| | - Jared Bullard
- Cadham Provincial Laboratory, Winnipeg, Manitoba, Canada
- Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Armelle Perez Cortes Villalobos
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
| | - Aaron Trachtenberg
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
| | - James Shaw
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
| | - Martin Karpinski
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
| | - Peter W Nickerson
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Julie Ho
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, Manitoba, Canada
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
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Thakker PU, Temple DM, Minnick C, Ponzi D, Badlani G, Hemal A, Doares W, Webb C, McCracken E, Orlando G, Jay C, Farney A, Stratta RJ. Continuous flow local anesthetic wound infusion for post-operative analgesia following kidney transplantation. Clin Transplant 2024; 38:e15305. [PMID: 38567895 DOI: 10.1111/ctr.15305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/27/2024] [Accepted: 03/18/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Some patients with end stage renal disease are or will become narcotic-dependent. Chronic narcotic use is associated with increased graft loss and mortality following kidney transplantation. We aimed to compare the efficacy of continuous flow local anesthetic wound infusion pumps (CFLAP) with patient controlled analgesia pumps (PCA) in reducing inpatient narcotic consumption in patients undergoing kidney transplantation. MATERIALS AND METHODS In this single-center, retrospective analysis of patients undergoing kidney transplantation, we collected demographic and operative data, peri-operative outcomes, complications, and inpatient oral morphine milligram equivalent (OME) consumption. RESULTS Four hundred and ninety-eight patients underwent kidney transplantation from 2020 to 2022. 296 (59%) historical control patients received a PCA for postoperative pain control and the next 202 (41%) patients received a CFLAP. Median age [53.5 vs. 56.0 years, p = .08] and BMI [29.5 vs. 28.9 kg/m2, p = .17] were similar. Total OME requirement was lower in the CFLAP group [2.5 vs. 34 mg, p < .001]. Wound-related complications were higher in the CFLAP group [5.9% vs. 2.7%, p = .03]. Two (.9%) patients in the CFLAP group experienced cardiac arrhythmia due to local anesthetic toxicity and required lipid infusion. CONCLUSIONS Compared to PCA, CFLAP provided a 93% reduction in OME consumption with a small increase in the wound-related complication rate. The utility of local anesthetic pumps may also be applicable to patients undergoing any unilateral abdominal or pelvic incision.
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Affiliation(s)
- Parth U Thakker
- Department of Urology, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA
| | - Davis M Temple
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Caroline Minnick
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Dominick Ponzi
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Gopal Badlani
- Department of Urology, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA
| | - Ashok Hemal
- Department of Urology, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA
| | - William Doares
- Department of Pharmacy, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA
| | - Christopher Webb
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Emily McCracken
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Giuseppe Orlando
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Colleen Jay
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Alan Farney
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Robert J Stratta
- Section of Transplantation, Department of Surgery, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA
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Ghali P, Ibrahim RM, Hodge D, White L, Wadei HM. Kidney after liver transplantation does not have an increased risk of rejection compared to liver alone. Clin Transplant 2024; 38:e15311. [PMID: 38616569 DOI: 10.1111/ctr.15311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Simultaneous liver kidney (SLK) transplant protects against acute cellular rejection. In 2017, UNOS implemented a "safety net" policy to allow patients with renal recovery to avoid renal transplantation. Whether kidney after liver transplantation (KALT) increases the risk of rejection is unknown. METHODS We performed a retrospective analysis of the Organ Procurement and Transplantation Network (OPTN) database of adult patients who received liver transplant, SLK or KALT between 2010 and 2020. We examined rejection of the liver within 6 months and 1 year of the liver transplant, as well as rejection of the kidney within 6 months and 1 year of receiving the kidney, as well as patient and graft loss. RESULTS Sixty-six thousand seventy-nine patients were transplanted; 60 168 with liver transplant alone, 5627 with SLK, and 284 with KALT. Acute or chronic liver rejection rates within 6 or 12 months were statistically higher in the KALT group (10.0% and 10.9%) compared to the SLK group (6.1% and 7.5%), but comparable to the LTA group (9.3% and 11.1%). Kidney rejection and graft survival rates were not different. Liver graft survival was worse in KALT than SLK or LTA (Kaplan-Meier estimates .61 vs. .89 and .90), but these patients were more ill at the time of transplantation. KDPI and LDRI scores were notably lower in the SLK than KALT group. Patient survival was not clinically different between the groups. CONCLUSION KALT does not increase the risk of acute or chronic kidney rejection. SLK has a lower risk of early liver rejection, but this effect diminishes by one year to being not clinically different compared to KALT. Given that KALT is immunologically safe, and potentially avoids unnecessary renal graft use, it should be preferred over SLK. BRIEF SUMMARY Patients undergoing sequential kidney after liver transplant do not have an increased risk of liver or kidney rejection when compared to liver transplant alone or simultaneous liver and kidney transplant.
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Affiliation(s)
- Peter Ghali
- Division of Gastroenterology and Hepatology, University of Florida, Jacksonville, Florida, USA
| | - Ramez M Ibrahim
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA
| | - David Hodge
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, Florida, USA
| | - Launia White
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, Florida, USA
| | - Hani M Wadei
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida, USA
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