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Chang RC, Miller RL, Kwon KW, Huang JC. Cost Offset of Dapagliflozin in the US Medicare Population with Cardio-Kidney Metabolic Syndrome. Adv Ther 2024:10.1007/s12325-024-02919-5. [PMID: 38958842 DOI: 10.1007/s12325-024-02919-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/03/2024] [Indexed: 07/04/2024]
Abstract
INTRODUCTION Cardiovascular-kidney-metabolic (CKM) syndrome is highly prevalent in the US Medicare population and is projected to increase further. Sodium-glucose co-transporter 2 inhibitors have indications in chronic kidney disease (CKD), heart failure (HF), and type 2 diabetes (T2D), providing protective efficacy across conditions within CKM syndrome. The objective of this study was to develop a model to extrapolate key outcomes observed in pivotal clinical trials to the US Medicare population, and to assess the potential direct cost offsets associated with dapagliflozin therapy. METHODS All US 2022 Medicare beneficiaries (≥ 65 years of age) eligible to receive dapagliflozin were estimated according to drug label indication and Medicare enrollment and claims data. Incidence of key outcomes from the dapagliflozin clinical program were modelled over a 4-year time horizon based on patient-level data with CKD, HF, and T2D. Published cost data of relevant clinical outcomes were used to calculate direct medical care cost-offset associated with treatment with dapagliflozin. RESULTS In a population of 13.1 million patients with CKM syndrome, treatment with dapagliflozin in addition to historical standard of care (hSoC) versus hSoC alone led to fewer incidents of HF-related events (hospitalization for HF, 613,545; urgent HF visit, 98,896), renal events (kidney failure, 285,041; ≥ 50% sustained decline in kidney function, 375,137), and 450,355 fewer deaths (of which 225,346 and 13,206 incidences of cardiovascular and renal death were avoided). In total this led to medical care cost offsets of $99.3 billion versus treatment with hSoC only (dapagliflozin plus hSoC, $310.3 billion; hSoC, $211.0 billion). CONCLUSION By extrapolating data from trials across multiple indications within CKM syndrome, this broader perspective shows that considerable medical care cost offsets may result through attenuated incidence of clinical events in CKD, T2D, and HF populations if treated with dapagliflozin in addition to hSoC over a 4-year time horizon. Graphical abstract available for this article.
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Affiliation(s)
- Raymond C Chang
- US Medical, Biopharmaceuticals, AstraZeneca, Wilmington, DE, USA.
| | - Ryan L Miller
- Health Economics and Outcomes Research Ltd., Cardiff, UK
| | - Katherine W Kwon
- Lake Michigan Nephrology, St. Joseph, MI, USA
- Panoramic Health, Tempe, AZ, USA
| | - Joanna C Huang
- US Medical, Biopharmaceuticals, AstraZeneca, Wilmington, DE, USA
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2
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Kiani AZ, Progar K, Hill AL, Vachharajani N, Olumba F, Yu J, Chapman WC, Doyle MB, Wellen JR, Khan AS. Robotic living donor nephrectomy is associated with reduced post-operative opioid use compared to hand-assisted laparoscopic approach. Surg Endosc 2024; 38:3654-3660. [PMID: 38777895 DOI: 10.1007/s00464-024-10925-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Robotic donor nephrectomy (RDN) has emerged as a safe alternative to laparoscopic donor nephrectomy (LDN). Having previously demonstrated comparable efficacy, this study aims to examine postoperative analgesia use (opioid and non-opioid) in the two groups. METHODS We conducted a retrospective review of 300 living donor nephrectomies performed at our center, comparing 150 RDN's with a contemporary cohort of 150 hand-assisted LDN's. In addition to clinical and demographic information, data on postoperative inpatient opioid and non-opioid analgesia (from patient's arrival to the surgical floor after surgery till the time of discharge) was collected. Opioid dosages were standardized by conversion to morphine milligram equivalents (MME). All patients were managed post-operatively under a standardized ERAS pathway for living donor nephrectomy patients. RESULTS There were no significant differences in donor age, gender, and BMI between RDN and LDN groups. Total post-operative opioid use (MME's) was significantly lower in RDN patients (RDN 27.1 vs. LDN 46.3; P < 0.0001). Breakdown of opioid use with post-operative (POD) day demonstrated significantly lower use in RDN group on POD1 (RDN 8.6 vs. LDN 17.0; P < 0.05), and POD2 (RDN 3.9 vs LDN 10; P < 0.05). RDN patients had a shorter post-operative length of stay (LOS) (RDN 1.69 days vs. LDN 1.98; P = 0.0003). There were no differences between groups in non-opioid medication use, complications, and readmission rates. CONCLUSION RDN has comparable safety to hand-assist LDN and offers additional benefits of lower postoperative opioid requirement and a shorter hospital LOS.
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Affiliation(s)
- Amen Z Kiani
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA.
- Department of Surgery, Division of Abdominal Transplant Surgery, Washington University School of Medicine, 660 Euclid Ave St., Louis, MO, 63110, USA.
| | - Kristin Progar
- Department of Pharmacy, Barnes-Jewish Hospital, Barnes-Jewish Hospital Plaza, Saint Louis, MO, 63130, USA
| | - Angela L Hill
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Neeta Vachharajani
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Franklin Olumba
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Jennifer Yu
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - William C Chapman
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Majella B Doyle
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Jason R Wellen
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Adeel S Khan
- Section of Abdominal Transplant, Department of General Surgery, Washington University in St. Louis, St. Louis, MO, 63110, USA
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Pedreira-Robles G, Garcimartín P, Pérez-Sáez MJ, Bach-Pascual A, Crespo M, Morín-Fraile V. Complex management and descriptive cost analysis of kidney transplant candidates: a descriptive cross-sectional study. BMC Health Serv Res 2024; 24:763. [PMID: 38915005 PMCID: PMC11197358 DOI: 10.1186/s12913-024-11200-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 06/12/2024] [Indexed: 06/26/2024] Open
Abstract
BACKGROUND The organisational care needs involved in accessing kidney transplant have not been described in the literature and therefore a detailed analysis thereof could help to establish a framework (including appropriate timing, investment, and costs) for the management of this population. The main objective of this study is to analyse the profile and care needs of kidney transplant candidates in a tertiary hospital and the direct costs of studying them. METHODS A descriptive, cross-sectional study was conducted using data on a range of variables (sociodemographic and clinical characteristics, study duration, and investment in visits and supplementary tests) from 489 kidney transplant candidates evaluated in 2020. RESULTS The comorbidity index was high (> 4 in 64.3%), with a mean of 5.6 ± 2.4. Part of the study population had certain characteristics that could hinder their access a kidney transplant: physical dependence (9.4%), emotional distress (33.5%), non-adherent behaviours (25.2%), or language barriers (9.4%). The median study duration was 6.6[3.4;14] months. The ratio of required visits to patients was 5.97:1, meaning an investment of €237.10 per patient, and the ratio of supplementary tests to patients was 3.5:1, meaning an investment of €402.96 per patient. CONCLUSIONS The study population can be characterised as complex due to their profile and their investment in terms of time, visits, supplementary tests, and direct costs. Management based on our results involves designing work-adaptation strategies to the needs of the study population, which can lead to increased patient satisfaction, shorter waiting times, and reduced costs.
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Affiliation(s)
- Guillermo Pedreira-Robles
- Nephrology Department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
- ESIMar (Mar Nursing School), Parc de Salut Mar, Universitat Pompeu Fabra Affiliated, Barcelona, Spain
- SDHEd (Social Determinants and Health Education Research Group), IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Nursing and Health PhD Programme, University of Barcelona, Barcelona, Spain
| | - Paloma Garcimartín
- Nursing department, Hospital del Mar, Parc de Salut Mar, Passeig Marítim 25-29, Barcelona, 08003, Spain.
- Research Group in Nursing Care, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
- Biomedical Network Research Center for Cardiovascular Diseases, (CIBERCV, Carlos III Health Institute), Madrid, Spain.
| | - María José Pérez-Sáez
- Nephrology Department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
- Kidney Research Grup (GREN), Hospital del Mar Medical Research Institute (IMIM), RD16/0009/0013 (ISCIII FEDER REDinREN), Barcelona, Spain
| | - Anna Bach-Pascual
- Nephrology Department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Marta Crespo
- Nephrology Department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
- Kidney Research Grup (GREN), Hospital del Mar Medical Research Institute (IMIM), RD16/0009/0013 (ISCIII FEDER REDinREN), Barcelona, Spain
| | - Victoria Morín-Fraile
- Department of Public Health, Mental Health, and Maternal and Child Health, Faculty of Nursing, University of Barcelona, Barcelona, Spain
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Cutrone AM, Rega SA, Feurer ID, Karp SJ. Effects of the March 2021 Allocation Policy Change on Key Deceased-donor Kidney Transplant Metrics. Transplantation 2024:00007890-990000000-00779. [PMID: 38831485 DOI: 10.1097/tp.0000000000005044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
BACKGROUND A major change to deceased-donor kidney allocation in the United States, Kidney Allocation System 250 (KAS250), was implemented on March 15, 2021. Evaluating the consequences of this policy on critical system performance metrics is critical to determining its success. METHODS We performed a retrospective analysis of critical performance measures of the kidney transplant system by reviewing all organs procured during a 4-y period in the United States. To mitigate against possible effects of the COVID-19 pandemic, Scientific Registry of Transplant Recipients records were stratified into 2 pre- and 2 post-KAS250 eras: (1) 2019; (2) January 1, 2020-March14, 2021; (3) March 15, 2021-December 31, 2021; and (4) 2022. Between-era differences in rates of key metrics were analyzed using chi-square tests with pairwise z-tests. Multivariable logistic regression and analysis of variations methods were used to evaluate the effects of the policy on rural and urban centers. RESULTS Over the period examined, among kidneys recovered for transplant, nonuse increased from 19.7% to 26.4% (all between-era P < 0.05) and among all Kidney Donor Profile Index strata. Cold ischemia times increased (P < 0.001); however, the distance between donor and recipient hospitals decreased (P < 0.05). Kidneys from small-metropolitan or nonmetropolitan hospitals were more likely to not be used over all times (P < 0.05). CONCLUSIONS Implementation of KAS250 was associated with increased nonuse rates across all Kidney Donor Profile Index strata, increased cold ischemic times, and shorter distance traveled.
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Affiliation(s)
- Alissa M Cutrone
- Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA
| | - Scott A Rega
- Vanderbilt Transplant Center, Vanderbilt University Medical Center, Nashville, TN
| | - Irene D Feurer
- Vanderbilt Transplant Center, Vanderbilt University Medical Center, Nashville, TN
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
| | - Seth J Karp
- Vanderbilt Transplant Center, Vanderbilt University Medical Center, Nashville, TN
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
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Hippen BE, Hart GM, Maddux FW. A Transplant-Inclusive Value-Based Kidney Care Payment Model. Kidney Int Rep 2024; 9:1590-1600. [PMID: 38899170 PMCID: PMC11184397 DOI: 10.1016/j.ekir.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/06/2024] [Accepted: 02/05/2024] [Indexed: 06/21/2024] Open
Abstract
In the United States, kidney care payment models are migrating toward value-based care (VBC) models incentivizing quality of care at lower cost. Current kidney VBC models will continue through 2026. We propose a future transplant-inclusive VBC (TIVBC) model designed to supplement current models focusing on patients with advanced chronic kidney disease (CKD) and end-stage kidney disease (ESKD). The proposed TIVBC is structured as an episode-of-care model with risk-based reimbursement for "referral/evaluation/waitlisting" (REW, referencing kidney transplantation), "primary hospitalization to 180 days posttransplant," and "long-term graft survival." Challenges around organ acquisition costs, adjustments to quality metrics, and potential criticisms of the proposed model are discussed. We propose next steps in risk-adjustment and cost-prediction to develop as an end-to-end, TIVBC model.
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Affiliation(s)
- Benjamin E. Hippen
- Global Medical Office, Fresenius Medical Care, Waltham, Massachusetts, USA
| | | | - Franklin W. Maddux
- Global Medical Office, Fresenius Medical Care, Waltham, Massachusetts, USA
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6
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Armitage RC. The Extent to Which the Wish to Donate One's Organs After Death Contributes to Life-Extension Arguments in Favour of Voluntary Active Euthanasia in the Terminally Ill: An Ethical Analysis. New Bioeth 2024; 30:123-151. [PMID: 38317570 DOI: 10.1080/20502877.2024.2308346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
In terminally ill individuals who would otherwise end their own lives, active voluntary euthanasia (AVE) can be seen as life-extending rather than life-shortening. Accordingly, AVE supports key pro-euthanasia arguments (appeals to autonomy and beneficence) and meets certain sanctity of life objections. This paper examines the extent to which a terminally ill individual's wish to donate organs after death contributes to those life-extension arguments. It finds that, in a terminally ill individual who wishes to avoid experiencing life he considers to be not worth living, and who also wishes to donate organs after death, AVE maximizes the likelihood that such donations will occur. The paper finds that the wish to donate organs strengthens the appeals to autonomy and beneficence, and fortifies the meeting of certain sanctity of life objections, achieved by life-extension arguments, and also generates appeals to justice that form novel life-extension arguments in favour of AVE in this context.
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Affiliation(s)
- Richard C Armitage
- School of Law, Centre for Professional Ethics, Keele University, Keele, UK
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7
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Bamforth RJ, Trachtenberg A, Ho J, Wiebe C, Ferguson TW, Rigatto C, Forget E, Dodd N, Tangri N. Expanding Access to High KDPI Kidney Transplant for Recipients Aged 60 y and Older: Cost Utility and Survival. Transplant Direct 2024; 10:e1629. [PMID: 38757046 PMCID: PMC11098249 DOI: 10.1097/txd.0000000000001629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/05/2024] [Accepted: 02/21/2024] [Indexed: 05/18/2024] Open
Abstract
Background Modern organ allocation systems are tasked with equitably maximizing the utility of transplanted organs. Increasing the use of deceased donor organs at risk of discard may be a cost-effective strategy to improve overall transplant benefit. We determined the survival implications and cost utility of increasing the use of marginal kidneys in an older adult Canadian population of patients with end-stage kidney disease. Methods We constructed a cost-utility model with microsimulation from the perspective of the Canadian single-payer health system for incident transplant waitlisted patients aged 60 y and older. A kidney donor profile index score of ≥86 was considered a marginal kidney. Donor- and recipient-level characteristics encompassed in the kidney donor profile index and estimated posttransplant survival scores were used to derive survival posttransplant. Patients were followed up for 10 y from the date of waitlist initiation. Our analysis compared the routine use of marginal kidneys (marginal kidney scenario) with the current practice of limited use (status quo scenario). Results The 10-y mean cost and quality-adjusted life-years per patient in the marginal kidney scenario were estimated at $379 485.33 (SD: $156 872.49) and 4.77 (SD: 1.87). In the status quo scenario, the mean cost and quality-adjusted life-years per patient were $402 937.68 (SD: $168 508.85) and 4.37 (SD: 1.87); thus, the intervention was considered dominant. At 10 y, 62.8% and 57.0% of the respective cohorts in the marginal kidney and status quo scenarios remained alive. Conclusions Increasing the use of marginal kidneys in patients with end-stage kidney disease aged 60 y and older may offer cost savings, improved quality of life, and greater patient survival in comparison with usual care.
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Affiliation(s)
- Ryan J. Bamforth
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, MB, Canada
| | - Aaron Trachtenberg
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, MB, Canada
| | - Julie Ho
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, MB, Canada
| | - Chris Wiebe
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
- Transplant Manitoba Adult Kidney Program, Winnipeg, MB, Canada
| | - Thomas W. Ferguson
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, MB, Canada
| | - Claudio Rigatto
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Evelyn Forget
- Department of Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Nancy Dodd
- Transplant Manitoba Adult Kidney Program, Winnipeg, MB, Canada
| | - Navdeep Tangri
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
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8
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Căluşi T, Sorohan B, Iordache A, Domnişor L, Purcaru F. Association between peri-transplant acid-base parameters and graft dysfunction types in kidney transplantation. ROMANIAN JOURNAL OF INTERNAL MEDICINE = REVUE ROUMAINE DE MEDECINE INTERNE 2024; 62:178-183. [PMID: 38153886 DOI: 10.2478/rjim-2023-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Indexed: 12/30/2023]
Abstract
Perioperative acid-base disturbance could be informative regarding the possible slow graft function (SGF) or delayed graft function (DGF) development. There is a lack of data regarding the relationship between perioperative acid-base parameters and graft dysfunction in kidney transplant (KT) recipients. We aim to determine the incidence of graft dysfunction types and the association between them and acid-base parameters. We performed a prospective, cohort study on 54 adults, KT recipients, between 1st of January 2019 and 31st of December 2019. Graft function was defined and classified in three categories: immediate graft function (IGF) (serum creatinine < 3 mg/dL at day 5 after KT), SGF (serum creatinine ≥ 3mg/dL at day 5 or ≥ 2.5mg dL at day 7 after KT) and DGF (the need for at least one dialysis treatment in the first week after kidney transplantation). Among the 54 KT recipients, the incidence of SGF and DGF was 13% and 11.1%, respectively. SGF was significantly associated with lower intraoperative pH (7.26± 0.05 vs 7.35± 0.06, p= 0.004), preoperative and intraoperative base excess (BE) [-7.0 (-10.0 ߝ -6.0) vs -3.4 (-7.8 ߝ - 2.1) mmol/L, p= 0.04 and -10.3 (-11.0 ߝ -9.1) vs -4.0 (-6.3 ߝ - 3.0) mmol/L, p= 0.002, respectively] and serum bicarbonate (HCO3-) (16.0± 2.7 vs 19.3± 3.4 mmol/L, p= 0.01 and 14.1± 1.9 vs 18.8± 3.2 mmol/L, p= 0.002 respectively), compared to IGF. DGF was significantly associated with lower intraoperative values of pH (7.27± 0.05 vs 7.35± 0.06, p= 0.003), BE [-7.1 (-10.9 ߝ -6.1) vs -4.0 (-6.3 ߝ - 3.0) mmol/L, p= 0.02] and HCO3- (15.9± 2.4 vs 18.8± 3.2 mmol/L, p=0.02) compared to IGF. No differences were observed between SGF and DGF patients in any of the perioperative acid-base parameters. In conclusion we found that kidney graft dysfunction types are associated with perioperative acid-base parameters and perioperative metabolic acidosis could provide important information to predict SGF or DGF occurrence.
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Affiliation(s)
- Teodor Căluşi
- 1Intensive Care Unit, Department 2, Fundeni Clinical Institute, Fundeni Street No 258, District 2, Zip Code 022328, Bucharest, Romania
| | - Bogdan Sorohan
- 2Department of Nephrology, "Carol Davila" University of Medicine and Pharmacy, Dionisie Lupu Street No 37, Zip Code 020021, District 2, Bucharest, Romania
- 3Department of Kidney Transplantation, Fundeni Clinical Institute, Fundeni Street No 258, District 2, Zip Code 022328, Bucharest, Romania
| | - Alexandru Iordache
- 4Department of Urology, Fundeni Clinical Institute, Fundeni Street No 258, District 2, Zip Code 022328, Bucharest, Romania
| | - Liliana Domnişor
- 1Intensive Care Unit, Department 2, Fundeni Clinical Institute, Fundeni Street No 258, District 2, Zip Code 022328, Bucharest, Romania
| | - Florea Purcaru
- 5Craiova University of Medicine and Pharmacy, Petru Rareș Street No. 2, Zip Code 200349, Craiova, Romania
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Panda K, Glance LG, Mazzeffi M, Gu Y, Wood KL, Moitra VK, Wu IY. Perioperative Extracorporeal Cardiopulmonary Resuscitation in Adult Patients: A Review for the Perioperative Physician. Anesthesiology 2024; 140:1026-1042. [PMID: 38466188 DOI: 10.1097/aln.0000000000004916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The use of extracorporeal cardiopulmonary resuscitation for refractory cardiac arrest has grown rapidly over the previous decade. Considerations for the implementation and management of extracorporeal cardiopulmonary resuscitation are presented for the perioperative physician.
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Affiliation(s)
- Kunal Panda
- Division of Cardiac Anesthesiology, Division of Critical Care Medicine, Department of Anesthesiology and Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Laurent G Glance
- Division of Cardiac Anesthesiology, Department of Anesthesiology and Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; and RAND Health, Boston, Massachusetts
| | - Michael Mazzeffi
- Division of Cardiothoracic Anesthesiology, Division of Critical Care Medicine, Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Yang Gu
- Division of Cardiac Anesthesiology, Division of Critical Care Medicine, Department of Anesthesiology and Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Katherine L Wood
- Division of Cardiac Surgery, Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Vivek K Moitra
- Division of Critical Care Medicine, Department of Anesthesiology, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | - Isaac Y Wu
- Division of Cardiac Anesthesiology, Department of Anesthesiology and Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
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10
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Reese PP, Powe NR, Lo B. Engineering Equity Into the Promise of Xenotransplantation. Am J Kidney Dis 2024; 83:677-683. [PMID: 37992981 DOI: 10.1053/j.ajkd.2023.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 11/24/2023]
Abstract
Two of the greatest challenges facing kidney transplantation are the lack of donated organs and inequities in who receives a transplant. Xenotransplantation holds promise as a treatment approach that could solve the supply problem. Major advances in gene-editing procedures have enabled several companies to raise genetically engineered pigs for organ donation. These porcine organs lack antigens and have other modifications that should reduce the probability of immunological rejection when transplanted into humans. The US Food and Drug Administration and transplantation leaders are starting to chart a path to test xenotransplants in clinical trials and later integrate them into routine clinical care. Here we provide a framework that industry, regulatory authorities, payers, transplantation professionals, and patient groups can implement to promote equity during every stage in this process. We also call for immediate action. Companies developing xenotransplant technology should assemble patient advocacy boards to bring the concerns of individuals with end-stage kidney disease to the forefront. For trials, xenotransplantation companies should partner with transplant programs with substantial patient populations of racial and ethnic minority groups and that have reciprocal relationships with those communities. Those companies and transplant programs should reach out now to those communities to inform them about xenotransplantation and try to address their concerns. These actions have the potential to make these communities full partners in the promise of xenotransplantation.
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Affiliation(s)
- Peter P Reese
- Renal-Electrolyte and Hypertension Division, Department of Medicine and Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA.
| | - Neil R Powe
- Department of Medicine, University of California San Francisco at the Priscilla Chan and Mark Zuckerberg San Francisco General Hospital, San Francisco, CA; Department of Medicine, University of California San Francisco, San Francisco, CA
| | - Bernard Lo
- Department of Medicine, University of California San Francisco, San Francisco, CA
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11
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Nishio Lucar AG, Patel A, Mehta S, Yadav A, Doshi M, Urbanski MA, Concepcion BP, Singh N, Sanders ML, Basu A, Harding JL, Rossi A, Adebiyi OO, Samaniego-Picota M, Woodside KJ, Parsons RF. Expanding the access to kidney transplantation: Strategies for kidney transplant programs. Clin Transplant 2024; 38:e15315. [PMID: 38686443 DOI: 10.1111/ctr.15315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/05/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024]
Abstract
Kidney transplantation is the most successful kidney replacement therapy available, resulting in improved recipient survival and societal cost savings. Yet, nearly 70 years after the first successful kidney transplant, there are still numerous barriers and untapped opportunities that constrain the access to transplant. The literature describing these barriers is extensive, but the practices and processes to solve them are less clear. Solutions must be multidisciplinary and be the product of strong partnerships among patients, their networks, health care providers, and transplant programs. Transparency in the referral, evaluation, and listing process as well as organ selection are paramount to build such partnerships. Providing early culturally congruent and patient-centered education as well as maximizing the use of local resources to facilitate the transplant work up should be prioritized. Every opportunity to facilitate pre-emptive kidney transplantation and living donation must be taken. Promoting the use of telemedicine and kidney paired donation as standards of care can positively impact the work up completion and maximize the chances of a living donor kidney transplant.
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Affiliation(s)
- Angie G Nishio Lucar
- Department of Medicine, University of Virginia Health, Charlottesville, Virginia, USA
| | - Ankita Patel
- Recanati-Miller Transplantation Institute, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shikha Mehta
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Anju Yadav
- Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mona Doshi
- Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Megan A Urbanski
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Neeraj Singh
- Willis Knighton Health System, Shreveport, Louisiana, USA
| | - M Lee Sanders
- Department of Internal Medicine, Division of Nephrology, Organ Transplant Center, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Arpita Basu
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jessica L Harding
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Ana Rossi
- Piedmont Transplant Institute, Atlanta, Georgia, USA
| | - Oluwafisayo O Adebiyi
- Department of Medicine, Indiana University Health Hospital, Indianapolis, Indiana, USA
| | | | | | - Ronald F Parsons
- Department of Surgery, University of Pennsylvannia, Philadelphia, Pennsylvania, USA
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12
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Butler CR, Reese PP, Cheng XS. Referral and Beyond: Restructuring the Kidney Transplant Process to Support Greater Access in the United States. Am J Kidney Dis 2024:S0272-6386(24)00743-1. [PMID: 38670253 DOI: 10.1053/j.ajkd.2024.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/28/2024]
Abstract
Advocates for improved equity in kidney transplants in the United States have recently focused their efforts on initiatives to increase referral for transplant evaluation. However, because donor kidneys remain scarce, increased referrals are likely to result in an increasing number of patients proceeding through the evaluation process without ultimately receiving a kidney. Unfortunately, the process of referral and evaluation can be highly resource-intensive for patients, families, transplant programs, and payers. Patients and families may incur out-of-pocket expenses and be required to complete testing and treatments that they might not have chosen in the course of routine clinical care. Kidney transplant programs may struggle with insufficient capacity, inefficient workflow, and challenging programmatic finances, and payers will need to absorb the increased expenses of upfront pretransplant costs. Increased referral in isolation may risk simply transmitting system stress and resulting disparities to downstream processes in this complex system. We argue that success in efforts to improve access through increased referrals hinges on adaptations to the pretransplant process more broadly. We call for an urgent re-evaluation and redesign at multiple levels of the pretransplant system in order to achieve the aim of equitable access to kidney transplantation for all patients with kidney failure.
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Affiliation(s)
- Catherine R Butler
- Division of Nephrology, Department of Medicine, Kidney Research Institute, University of Washington, Seattle, Washington; Veteran Affairs Health Services Research and Development Center of Innovation for Veteran-Centered and Value-Driven Care, Seattle, Washington
| | - Peter P Reese
- Renal-Electrolyte and Hypertension Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Biostatistics, Epidemiology and Bioinformatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Xingxing S Cheng
- Division of Nephrology, Department of Medicine, Stanford University, Palo Alto, California.
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13
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Noya-Mourullo A, Martín-Parada A, Palacios-Hernández A, Eguiluz-Lumbreras P, Heredero-Zorzo Ó, García-Gómez F, Álvarez-Ossorio-Fernández JL, Álvarez-Ossorio-Rodal A, Márquez-Sánchez MT, Flores-Fraile J, Fraile-Gómez P, Padilla-Fernández BY, Lorenzo-Gómez MF. Enhancing Kidney Transplant Outcomes: The Impact of Living Donor Programs. J Pers Med 2024; 14:408. [PMID: 38673035 PMCID: PMC11051259 DOI: 10.3390/jpm14040408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
INTRODUCTION The protocol for deceased donor kidney transplants has been standardised. The procedure for a living donor has peculiarities derived from the differences in the graft. When a living kidney donor program is implemented, changes occur in both the profile of the kidney transplant candidate and in the postoperative treatments. AIMS To discover whether a living donor program influences the functional outcomes of kidney grafts in a longstanding classical deceased donor kidney transplant program and to identify the factors associated with transplant outcomes. METHODS Retrospective observational multicentre study. SAMPLE Kidney transplant patients in two urology referral centres for renal transplant in Spain between 1994 and 2019. Groups: TV (living transplant): patients given kidney transplants from living donors (n = 150); TCpre11 (deceased transplant previous to 2011): patients given kidney transplants from deceased donors before the living donor program was implemented (n = 650); and TCpost11 (deceased transplant after 2011): patients given kidney transplants from deceased donors after the living donor program was implemented (n = 500). RESULTS Mean age was 55.75 years (18-80 years), higher in TCpre11. There were 493 female patients (37.92%) and 1007 male patients (62.08%). Mean body mass index (BMI) was 26.69 kg/m2 (17.50-42.78 kg/m2), higher in TCpre11. Mean ischemia time was 17.97 h (6-29 h), higher in TCpost11. Median duration of urethral catheter: 8 days (6-98 days), higher in TCpost11. Median duration of double-J ureteral stent: 58 days (24-180 days), higher in TCpost11. Pretransplant UTIs: 17.77%, higher in TCpre11 (25.69%) than in TV (12%), higher in TV (12%) than TCpost11 (9.2%), and higher in TCpre11 (25.69%) than TCpost11 (9.2%). Acute renal rejection in 9.33% of TV, 14.77% of TCpre11, and 9.8% of TCpost11. Multivariate analysis: TCpost11 featured higher BMI, more smoking, and chronic renal failure progression time. Lower use of nonantibiotic prophylaxis to prevent recurrent urinary tract infections, increased duration of urethral catheters due to obstructive problems, and favoured deterioration of kidney function was observed in the deceased donor program. The living donor (LD) program had a strong influence on deceased donor transplants in the prelysis phase. Implementation of a LD program was associated with a decrease in the likelihood of acute rejection in TCpost11 and an increase in the tendency towards normal kidney function. CONCLUSIONS Implementing living donor transplant programs affects functional outcomes in deceased donor transplants, reducing the probability of acute rejection and increasing the tendency towards normal kidney function. Preventing recurrent urinary tract infections with measures other than antibiotics, smoking cessation, delaying the removal of the double-J stent from the graft, and pre-emptive transplant (transplant prior to dialysis) are associated with improved renal function of the graft.
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Affiliation(s)
- Andrea Noya-Mourullo
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
- Department of Surgery, University of Salamanca, 37007 Salamanca, Spain (M.-T.M.-S.)
| | - Alejandro Martín-Parada
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
| | - Alberto Palacios-Hernández
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
| | - Pablo Eguiluz-Lumbreras
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
| | - Óscar Heredero-Zorzo
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
| | - Francisco García-Gómez
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
| | | | | | | | - Javier Flores-Fraile
- Department of Surgery, University of Salamanca, 37007 Salamanca, Spain (M.-T.M.-S.)
| | - Pilar Fraile-Gómez
- Nephrology Department, University Hospital of Salamanca, 37007 Salamanca, Spain;
| | | | - María-Fernanda Lorenzo-Gómez
- Urology Department, University Hospital of Salamanca, 37007 Salamanca, Spain; (A.N.-M.); (Ó.H.-Z.); (F.G.-G.)
- Department of Surgery, University of Salamanca, 37007 Salamanca, Spain (M.-T.M.-S.)
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14
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Meshkin D, Kann RJ, Crane AC, Wijkstrom M, Gunabushanam V, Molinari M, Ganoza A, Tevar AD. Safety of Patients with Renal Artery Aneurysm to Proceed with Living Donation. Am Surg 2024; 90:748-753. [PMID: 37885074 DOI: 10.1177/00031348231211027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Renal artery aneurysm (RAA) is a rare condition that involves dilation of all layers of the arterial wall of the renal artery. The risk of rupture is rare, but intervention is recommended for larger aneurysms. Surgical decision-making regarding live donor renal transplantation (LDRT) centers around safety for the living donor, and laterality of the donated kidney is based on providing the donor with the best longevity pertaining to the remaining kidney. We looked to review our long-term outcomes surrounding live donor transplants from donors with RAA with ex vivo resection and reconstruction prior to implantation. METHODS A retrospective review was done of all laparoscopic live donor transplant nephrectomies with ex vivo aneurysm resection, reconstruction, and implantation at a single center. RESULTS Three pairs of patients underwent successful laparoscopic donor nephrectomy, RAA resection, reconstruction, and transplantation of kidney. 2 males and 1 female ages 47 to 58 years of age underwent transplantation. The donors at 5 years of follow-up were noted to be functioning appropriately with no long-term sequelae of their donation and a mean remanent kidney function of 63 mL/min. DISCUSSION For potential live donors with asymptomatic, unilateral renal artery aneurysm and no systemic disease, live donation with ex vivo resection and reconstruction can be performed with excellent long-term donor and recipient outcomes.
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Affiliation(s)
- Dana Meshkin
- School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rachel J Kann
- School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew C Crane
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Martin Wijkstrom
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Vik Gunabushanam
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Michele Molinari
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Armando Ganoza
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Amit D Tevar
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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15
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Maenosono R, Unagami K, Oki R, Fujiwara Y, Banno T, Okada D, Yagisawa T, Kanzawa T, Hirai T, Omoto K, Hanafusa N, Azuma H, Takagi T, Ishida H. The medical cost and outcome of desensitization protocol in kidney transplantation recipients with high immunological risks. Int J Urol 2024; 31:422-429. [PMID: 38193573 DOI: 10.1111/iju.15383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 12/17/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Kidney transplantation is a well-established alternative in renal replacement therapy. Compared with hemodialysis, low-immunological-risk kidney transplantation can reduce the medical treatment costs associated with end-stage renal disease. However, there are few reports on whether high-immunological-risk kidney transplantation reduces the financial burden on governments. We investigated the medical costs of high-immunological-risk kidney transplantation in comparison with the cost of hemodialysis in Japan. METHODS We compared the medical costs of high-immunological-risk kidney transplantation with those of hemodialysis. 15 patients who underwent crossmatch-positive and/or donor-specific antibody-positive kidney transplantations between 2020 and 2021 were enrolled in this study. The patients received intravenous immunoglobulin, plasmapheresis, and rituximab as desensitizing therapy. RESULTS Acute antibody-mediated rejection was detected in nine (60%) recipients, while there were no indications of graft function deterioration during the follow-up. For each patient, the transplant hospitalization cost was 38 428 ± 8789 USD. However, the cumulative costs were 59 758 ± 10 006 USD and 79 781 ± 16 366 USD, at 12 and 24 months, respectively. Compared with hemodialysis (34 286 USD per year), high-immunological-risk kidney transplantation tends to be expensive in the first year, but the cost is likely to be lower than that of hemodialysis after 3 years. CONCLUSIONS Although kidney transplantation is initially expensive compared with hemodialysis, the medical cost becomes advantageous after 3 years even in kidney transplant recipients with high immunological risk.
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Affiliation(s)
- Ryoichi Maenosono
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
- Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Kohei Unagami
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
- Department of Organ Transplant Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Rikako Oki
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
- Department of Organ Transplant Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yuya Fujiwara
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
- Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Taro Banno
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Daigo Okada
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Takafumi Yagisawa
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Taichi Kanzawa
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshihito Hirai
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuya Omoto
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Norio Hanafusa
- Department of Blood Purification, Tokyo Women's Medical University, Tokyo, Japan
| | - Haruhito Azuma
- Department of Urology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Toshio Takagi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hideki Ishida
- Department of Organ Transplant Medicine, Tokyo Women's Medical University, Tokyo, Japan
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16
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Adler JT, Kuk AE, Cron DC, Parast L, Husain SA. Insurance Transitions from Employer-Based Insurance to Medicare and Waitlisting for Kidney Transplantation: Placing Marietta v. DaVita in Context. J Am Soc Nephrol 2024; 35:495-498. [PMID: 38221653 PMCID: PMC11000745 DOI: 10.1681/asn.0000000000000298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/17/2023] [Indexed: 01/16/2024] Open
Affiliation(s)
- Joel T. Adler
- Division of Transplantation, Department of Surgery and Perioperative Care, Dell Medical School at the University of Texas at Austin, Austin, Texas
| | - Arnold E. Kuk
- Biomedical Data Sciences Hub, Dell Medical School at the University of Texas at Austin, Austin, Texas
| | - David C. Cron
- Center for Surgery and Public Health at Brigham and Women's Hospital, Boston, Massachusetts
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Layla Parast
- Department of Statistics and Data Science, University of Texas at Austin, Austin, Texas
| | - Syed Ali Husain
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
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17
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Husain SA, Khanna S, Yu M, Adler JT, Cron DC, King KL, Schold JD, Mohan S. Cold Ischemia Time and Delayed Graft Function in Kidney Transplantation: A Paired Kidney Analysis. Transplantation 2024:00007890-990000000-00713. [PMID: 38557641 DOI: 10.1097/tp.0000000000005006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND We aimed to understand the association between cold ischemia time (CIT) and delayed graft function (DGF) after kidney transplantation and the impact of organ pumping on that association. METHODS Retrospective cohort study using US registry data. We identified kidney pairs from the same donor where both kidneys were transplanted but had a CIT difference >0 and ≤20 h. We determined the frequency of concordant (both kidneys with/without DGF) or discordant (only 1 kidney DGF) DGF outcomes. Among discordant pairs, we computed unadjusted and adjusted relative risk of DGF associated with longer-CIT status, when then repeated this analysis restricted to pairs where only the longer-CIT kidney was pumped. RESULTS Among 25 831 kidney pairs included, 71% had concordant DGF outcomes, 16% had only the longer-CIT kidney with DGF, and 13% had only the shorter-CIT kidney with DGF. Among discordant pairs, longer-CIT status was associated with a higher risk of DGF in unadjusted and adjusted models. Among pairs where only the longer-CIT kidney was pumped, longer-CIT kidneys that were pumped had a lower risk of DGF than their contralateral shorter-CIT kidneys that were not pumped regardless of the size of the CIT difference. CONCLUSIONS Most kidney pairs have concordant DGF outcomes regardless of CIT difference, but even small increases in CIT raise the risk of DGF. Organ pumping may mitigate and even overcome the adverse consequences of prolonged CIT on the risk of DGF, but prospective studies are needed to better understand this relationship.
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Affiliation(s)
- Syed Ali Husain
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, NY
- The Columbia University Renal Epidemiology Group, New York, NY
| | - Sohil Khanna
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, NY
| | - Miko Yu
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, NY
- The Columbia University Renal Epidemiology Group, New York, NY
| | - Joel T Adler
- Department of Surgery and Perioperative Care, Dell Medical School, University of Texas at Austin, Austin, TX
| | - David C Cron
- Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - Kristen L King
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, NY
- The Columbia University Renal Epidemiology Group, New York, NY
| | - Jesse D Schold
- Department of Surgery, University of Colorado-Anschutz Medical Campus, Aurora, CO
- Department of Epidemiology, School of Public Health, University of Colorado-Anschutz Medical Campus, Aurora, CO
| | - Sumit Mohan
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, NY
- The Columbia University Renal Epidemiology Group, New York, NY
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
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18
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Shah KK, Hedley JA, Robledo KP, Wyld M, Webster AC, Morton RL. Cost-effectiveness of Accepting Kidneys From Deceased Donors With Common Cancers-A Modeling Study. Transplantation 2024:00007890-990000000-00695. [PMID: 38499509 DOI: 10.1097/tp.0000000000004984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
BACKGROUND The disparity between the demand for and supply of kidney transplants has resulted in prolonged waiting times for patients with kidney failure. A potential approach to address this shortage is to consider kidneys from donors with a history of common cancers, such as breast, prostate, and colorectal cancers. METHODS We used a patient-level Markov model to evaluate the outcomes of accepting kidneys from deceased donors with a perceived history of breast, prostate, or colorectal cancer characterized by minimal to intermediate transmission risk. Data from the Australian transplant registry were used in this analysis. The study compared the costs and quality-adjusted life years (QALYs) from the perspective of the Australian healthcare system between the proposed practice of accepting these donors and the conservative practice of declining them. The model simulated outcomes for 1500 individuals waitlisted for a deceased donor kidney transplant for a 25-y horizon. RESULTS Under the proposed practice, when an additional 15 donors with minimal to intermediate cancer transmission risk were accepted, QALY gains ranged from 7.32 to 20.12. This translates to an approximate increase of 7 to 20 additional years of perfect health. The shift in practice also led to substantial cost savings, ranging between $1.06 and $2.3 million. CONCLUSIONS The proposed practice of accepting kidneys from deceased donors with a history of common cancers with minimal to intermediate transmission risk offers a promising solution to bridge the gap between demand and supply. This approach likely results in QALY gains for recipients and significant cost savings for the health system.
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Affiliation(s)
- Karan K Shah
- Health Economics and Health Technology Assessment, NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - James A Hedley
- Collaborative Centre for Organ Donation Evidence, Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Kristy P Robledo
- Health Economics and Health Technology Assessment, NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Melanie Wyld
- Collaborative Centre for Organ Donation Evidence, Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Centre for Transplant and Renal Research, Westmead Hospital, Sydney, NSW, Australia
| | - Angela C Webster
- Health Economics and Health Technology Assessment, NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Collaborative Centre for Organ Donation Evidence, Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Centre for Transplant and Renal Research, Westmead Hospital, Sydney, NSW, Australia
| | - Rachael L Morton
- Health Economics and Health Technology Assessment, NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
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19
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Emmons BR, Batal I, King KL, Yu M, Canetta PA, Sandoval PR, Mohan S, Tsapepas D, Adler JT, Ratner LE, Husain SA. Association of Implantation Biopsy Findings in Living Donor Kidneys With Donor and Recipient Outcomes. Am J Kidney Dis 2024; 83:306-317. [PMID: 37879529 PMCID: PMC10922703 DOI: 10.1053/j.ajkd.2023.08.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/31/2023] [Accepted: 08/28/2023] [Indexed: 10/27/2023]
Abstract
RATIONALE & OBJECTIVE Some living donor kidneys are found to have biopsy evidence of chronic scarring and/or glomerular disease at implantation, but it is unclear if these biopsy findings help predict donor kidney recovery or allograft outcomes. Our objective was to identify the prevalence of chronic histological changes and glomerular disease in donor kidneys, and their association with donor and recipient outcomes. STUDY DESIGN Retrospective cohort study. SETTING & PARTICIPANTS Single center, living donor kidney transplants from January 2010 to July 2022. EXPOSURE Chronic histological changes, glomerular disease in donor kidney implantation biopsies. OUTCOME For donors, single-kidney estimated glomerular filtration rate (eGFR) increase, percent total eGFR loss, ≥40% eGFR decline from predonation baseline, and eGFR<60mL/min/1.73m2 at 6 months after donation; for recipients, death-censored allograft survival. ANALYTICAL APPROACH Biopsies were classified as having possible glomerular disease by pathologist diagnosis or chronic changes based on the percentage of glomerulosclerosis, interstitial fibrosis/tubular atrophy, and vascular disease. We used logistic regression to identify factors associated with the presence of chronic changes, linear regression to identify the association between chronic changes and single-kidney estimated glomerular filtration rate (eGFR) recovery, and time-to-event analyses to identify the relationship between abnormal biopsy findings and allograft outcomes. RESULTS Among 1,104 living donor kidneys, 155 (14%) had advanced chronic changes on implantation biopsy, and 12 (1%) had findings suggestive of possible donor glomerular disease. Adjusted logistic regression showed that age (odds ratio [OR], 2.44 per 10 years [95% CI, 1.98-3.01), Hispanic ethnicity (OR, 1.87 [95% CI, 1.15-3.05), and hypertension (OR, 1.92 [95% CI, 1.01-3.64), were associated with higher odds of chronic changes on implantation biopsy. Adjusted linear regression showed no association of advanced chronic changes with single-kidney eGFR increase or relative risk of eGFR<60mL/min/1.73m2. There were no differences in time-to-death-censored allograft failure in unadjusted or adjusted Cox proportional hazards models when comparing kidneys with chronic changes to kidneys without histological abnormalities. LIMITATIONS Retrospective, absence of measured GFR. CONCLUSIONS Approximately 1 in 7 living donor kidneys had chronic changes on implantation biopsy, primarily in the form of moderate vascular disease, and 1% had possible donor glomerular disease. Abnormal implantation biopsy findings were not significantly associated with 6-month donor eGFR outcomes or allograft survival. PLAIN-LANGUAGE SUMMARY Kidney biopsies are the gold standard test to identify the presence or absence of kidney disease. However, kidneys donated by healthy living donors-who are extensively screened for any evidence of kidney disease before donation-occasionally show findings that might be considered "abnormal," including the presence of scarring in the kidney or findings suggestive of a primary kidney disease. We studied the frequency of abnormal kidney biopsy findings among living donors at our center. We found that about 14% of kidneys had chronic abnormalities and 1% had findings suggesting possible glomerular kidney disease, but the presence of abnormal biopsy findings was not associated with worse outcomes for the donors or their recipients.
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Affiliation(s)
- Brendan R Emmons
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York; Columbia University Renal Epidemiology Group, New York, New York
| | - Ibrahim Batal
- Department of Pathology and Cell Biology, Columbia University, New York, New York
| | - Kristen L King
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York; Columbia University Renal Epidemiology Group, New York, New York
| | - Miko Yu
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York; Columbia University Renal Epidemiology Group, New York, New York
| | - Pietro A Canetta
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York
| | | | - Sumit Mohan
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York; Columbia University Renal Epidemiology Group, New York, New York; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Demetra Tsapepas
- Department of Transplant Analytics, New York-Presbyterian Hospital, New York, New York
| | - Joel T Adler
- Department of Surgery and Perioperative Care, Dell Medical School, University of Texas at Austin, Austin, Texas
| | - Lloyd E Ratner
- Department of Surgery, Columbia University, New York, New York
| | - S Ali Husain
- Department of Medicine, Division of Nephrology, Columbia University, New York, New York; Columbia University Renal Epidemiology Group, New York, New York.
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20
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Subramanian HV, Canfield C, Shank DB. Designing explainable AI to improve human-AI team performance: A medical stakeholder-driven scoping review. Artif Intell Med 2024; 149:102780. [PMID: 38462282 DOI: 10.1016/j.artmed.2024.102780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/20/2023] [Accepted: 01/14/2024] [Indexed: 03/12/2024]
Abstract
The rise of complex AI systems in healthcare and other sectors has led to a growing area of research called Explainable AI (XAI) designed to increase transparency. In this area, quantitative and qualitative studies focus on improving user trust and task performance by providing system- and prediction-level XAI features. We analyze stakeholder engagement events (interviews and workshops) on the use of AI for kidney transplantation. From this we identify themes which we use to frame a scoping literature review on current XAI features. The stakeholder engagement process lasted over nine months covering three stakeholder group's workflows, determining where AI could intervene and assessing a mock XAI decision support system. Based on the stakeholder engagement, we identify four major themes relevant to designing XAI systems - 1) use of AI predictions, 2) information included in AI predictions, 3) personalization of AI predictions for individual differences, and 4) customizing AI predictions for specific cases. Using these themes, our scoping literature review finds that providing AI predictions before, during, or after decision-making could be beneficial depending on the complexity of the stakeholder's task. Additionally, expert stakeholders like surgeons prefer minimal to no XAI features, AI prediction, and uncertainty estimates for easy use cases. However, almost all stakeholders prefer to have optional XAI features to review when needed, especially in hard-to-predict cases. The literature also suggests that providing both system- and prediction-level information is necessary to build the user's mental model of the system appropriately. Although XAI features improve users' trust in the system, human-AI team performance is not always enhanced. Overall, stakeholders prefer to have agency over the XAI interface to control the level of information based on their needs and task complexity. We conclude with suggestions for future research, especially on customizing XAI features based on preferences and tasks.
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Affiliation(s)
- Harishankar V Subramanian
- Engineering Management & Systems Engineering, Missouri University of Science and Technology, 600 W 14(th) Street, Rolla, MO 65409, United States of America
| | - Casey Canfield
- Engineering Management & Systems Engineering, Missouri University of Science and Technology, 600 W 14(th) Street, Rolla, MO 65409, United States of America.
| | - Daniel B Shank
- Psychological Science, Missouri University of Science and Technology, 500 W 14(th) Street, Rolla, MO 65409, United States of America
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21
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Dubourg Q, Savoye E, Drouin S, Legeai C, Barrou B, Rondeau E, Buob D, Kerbaul F, Bronchard R, Galichon P. Effect of Cardiac Arrest in Brain-dead Donors on Kidney Graft Function. Transplantation 2024; 108:768-776. [PMID: 37819189 DOI: 10.1097/tp.0000000000004825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
BACKGROUND Cardiac arrest (CA) causes renal ischemia in one-third of brain-dead kidney donors before procurement. We hypothesized that the graft function depends on the time interval between CA and organ procurement. METHODS We conducted a retrospective population-based study on a prospectively curated database. We included 1469 kidney transplantations from donors with a history of resuscitated CA in 2015-2017 in France. CA was the cause of death (primary CA) or an intercurrent event (secondary CA). The main outcome was the percentage of delayed graft function, defined by the use of renal replacement therapy within the first week posttransplantation. RESULTS Delayed graft function occurred in 31.7% of kidney transplantations and was associated with donor function, vasopressors, cardiovascular history, donor and recipient age, body mass index, cold ischemia time, and time to procurement after primary cardiac arrest. Short cold ischemia time, perfusion device use, and the absence of cardiovascular comorbidities were protected by multivariate analysis, whereas time <3 d from primary CA to procurement was associated with delayed graft function (odds ratio 1.38). CONCLUSIONS This is the first description of time to procurement after a primary CA as a risk factor for delayed graft function. Delaying procurement after CA should be evaluated in interventional studies.
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Affiliation(s)
- Quentin Dubourg
- Kidney Transplantation, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Emilie Savoye
- Agence de la biomédecine, Direction Prélèvement Greffe Organes-Tissus, Saint-Denis La Plaine, France
| | - Sarah Drouin
- Kidney Transplantation, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, Paris, France
| | - Camille Legeai
- Agence de la biomédecine, Direction Prélèvement Greffe Organes-Tissus, Saint-Denis La Plaine, France
| | - Benoit Barrou
- Kidney Transplantation, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Eric Rondeau
- Kidney Transplantation, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, Paris, France
| | - David Buob
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, Paris, France
- Department of Pathology, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Francois Kerbaul
- Agence de la biomédecine, Direction Prélèvement Greffe Organes-Tissus, Saint-Denis La Plaine, France
| | - Régis Bronchard
- Agence de la biomédecine, Direction Prélèvement Greffe Organes-Tissus, Saint-Denis La Plaine, France
| | - Pierre Galichon
- Kidney Transplantation, APHP Sorbonne University, Sorbonne University, Assistance Publique-Hôpitaux de Paris, Paris, France
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, Paris, France
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22
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Lentine KL, Smith JM, Lyden GR, Miller JM, Dolan TG, Bradbrook K, Larkin L, Temple K, Handarova DK, Weiss S, Israni AK, Snyder JJ. OPTN/SRTR 2022 Annual Data Report: Kidney. Am J Transplant 2024; 24:S19-S118. [PMID: 38431360 DOI: 10.1016/j.ajt.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The year 2022 had continued successes and challenges for the field of kidney transplantation, as the community adapted to ongoing surges of the COVID-19 pandemic and broader geographic organ distribution. The total number of kidney transplants in the United States reached a record count of 26,309, driven by continued growth in deceased donor kidney transplants (DDKTs). The total number of candidates listed for DDKT rose slightly in 2022 but remained below 2019 listing levels, with 12.4% of candidates having been waiting 5 years or longer. Following the height of the COVID-19 pandemic, pretransplant mortality in 2022 declined across age, race and ethnicity, sex, and blood type groups. Pretransplant mortality continued to vary substantially by donation service area. The proportion of deceased donor kidneys recovered but not used for transplant (nonuse rate) rose to a high of 26.7% overall, with greater nonuse of biopsied kidneys (39.8%), kidneys from donors aged 55 years or older (54.7%), and kidneys with a kidney donor profile index (KDPI) of 85% or greater (71.3%). Nonuse of kidneys from donors who are hepatitis C virus (HCV) antibody positive rose to 30.2% but only slightly exceeded that of HCV antibody-negative donors. Disparities in access to living donor kidney transplant (LDKT) persist, especially for non-White and publicly insured patients. Delayed graft function continues an upward trend and occurred in 26.3% of adult kidney transplants in 2022. Five-year graft survival after LDKT compared with DDKT was 90.0% versus 81.4% for recipients aged 18-34 years and 80.8% versus 67.8% for recipients aged 65 years or older, respectively. The total number of pediatric kidney transplants performed in 2022 decreased to 705, its lowest point in the past decade; 502 (71.2%) were DDKTs and 203 (28.8%) were LDKTs. Among pediatric recipients, LDKT remains low, with continued racial disparities. The rate of DDKT among pediatric candidates has decreased by almost 25% since 2011. Congenital anomalies of the kidney and urinary tract remain the leading primary kidney disease diagnosis among pediatric candidates with a reported diagnosis. Most pediatric deceased donor recipients received a kidney from a donor with a KDPI of less than 35%. The rate of delayed graft function was 5.8% in 2022 and has been stable over the past decade. Long-term graft survival continues to improve, with superior outcomes for living donor transplant recipients.
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Affiliation(s)
- Krista L Lentine
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; SSM Health Saint Louis University Hospital Transplant Center, Saint Louis University School of Medicine, St. Louis, MO
| | - Jodi M Smith
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; Department of Pediatrics, University of Washington, Seattle, WA
| | - Grace R Lyden
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, MN
| | - Jonathan M Miller
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, MN
| | - Thomas G Dolan
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Keighly Bradbrook
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Lindsay Larkin
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Kayla Temple
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Dzhuliyana K Handarova
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Samantha Weiss
- Organ Procurement and Transplantation Network, United Network for Organ Sharing, Richmond, VA
| | - Ajay K Israni
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, MN; Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
| | - Jon J Snyder
- Scientific Registry of Transplant Recipients, Hennepin Healthcare Research Institute, Minneapolis, MN; Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, MN; Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
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23
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Kute VB, Pathak V, Ray DS, Bhalla AK, Godara SM, Narayanan S, Hegde U, Das P, Jha PK, Kher V, Dalal S, Bahadur MM, Gang S, Sinha VK, Patel HV, Deshpande R, Mali M, Sharma A, Das SS, Thukral S, Shingare A, Bt AK, Hafeeq B, Aziz F, Aboobacker IN, Gopinathan JC, Dave RM, Bansal D, Anandh U, Singh S, Kriplani J, Bavikar S, Siddini V, Balan S, Singla M, Chauhan M, Tripathi V, Patwari D, Abraham AM, Chauhan S, Meshram HS. A Multicenter Retrospective Cohort Study on Management Protocols and Clinical Outcomes After ABO-incompatible Kidney Transplantation in India. Transplantation 2024; 108:545-555. [PMID: 37641175 DOI: 10.1097/tp.0000000000004789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
BACKGROUND There is no robust evidence-based data for ABO-incompatible kidney transplantation (ABOiKT) from emerging countries. METHODS Data from 1759 living donor ABOiKT and 33 157 ABO-compatible kidney transplantations (ABOcKT) performed in India between March 5, 2011, and July 2, 2022, were included in this retrospective, multicenter (n = 25) study. The primary outcomes included management protocols, mortality, graft loss, and biopsy-proven acute rejection (BPAR). RESULTS Protocol included rituximab 100 (232 [13.18%]), 200 (877 [49.85%]), and 500 mg (569 [32.34%]); immunoadsorption (IA) (145 [8.24%]), IVIG (663 [37.69%]), and no induction 200 (11.37%). Mortality, graft loss, and BPAR were reported in 167 (9.49%), 136 (7.73%), and 228 (12.96%) patients, respectively, over a median follow-up of 36.3 mo. In cox proportional hazard model, mortality was higher with IA (hazard ratio [HR]: 2.53 [1.62-3.97]; P < 0.001), BPAR (HR: 1.83 [1.25-2.69]; P = 0.0020), and graft loss (HR: 1.66 [1.05-2.64]; P = 0.0310); improved graft survival was associated with IVIG (HR: 0.44 [0.26-0.72]; P = 0.0010); higher BPAR was reported with conventional tube method (HR: 3.22 [1.9-5.46]; P < 0.0001) and IA use (HR: 2 [1.37-2.92]; P < 0.0001), whereas lower BPAR was reported in the prepandemic era (HR: 0.61 [0.43-0.88]; P = 0.008). Primary outcomes were not associated with rituximab dosing or high preconditioning/presurgery anti-A/anti-B titers. Incidence of overall infection 306 (17.39%), cytomegalovirus 66 (3.75%), and BK virus polyoma virus 20 (1.13%) was low. In unmatched univariate analysis, the outcomes between ABOiKT and ABOcKT were comparable. CONCLUSIONS Our largest multicenter study on ABOiKT provides insights into various protocols and management strategies with results comparable to those of ABOcKT.
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Affiliation(s)
- Vivek B Kute
- Department of Nephrology, Institute of Kidney Diseases and Research Center, Dr H.L. Trivedi Institute of Transplantation Sciences (IKDRC-ITS), Ahmedabad, Gujarat, India
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Vivek Pathak
- Department of Nephrology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India
| | - Deepak S Ray
- Department of Nephrology, Rabindranath Tagore International Institute of Cardiac Sciences (RNTIICS), Kolkata, West Bengal, India
| | - Anil K Bhalla
- Department of Nephrology, Sir Ganga Ram Hospital, Delhi, India
| | - Suraj M Godara
- Department of Nephrology, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan, India
| | - Sajith Narayanan
- Department of Nephrology, Aster MIMS Hospital, Kozhikode, Kerala, India
| | - Umapati Hegde
- Department of Nephrology, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Pratik Das
- Department of Nephrology, Rabindranath Tagore International Institute of Cardiac Sciences (RNTIICS), Kolkata, West Bengal, India
| | - Pranaw Kumar Jha
- Department of Nephrology, Medanta Institute of Kidney and Urology, Medanta-The Medicity, Gurugram, Haryana, India
| | - Vijay Kher
- Department of Nephrology and Transplant Medicine, Epitome Kidney and Urology Institute, Epitome Hospital, New Delhi, India
| | - Sonal Dalal
- Department of Nephrology, Gujarat Kidney Foundation, Ahmedabad, India
| | - Madan M Bahadur
- Department of Nephrology, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India
| | - Sishir Gang
- Department of Nephrology, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | | | - Himanshu V Patel
- Department of Nephrology, Institute of Kidney Diseases and Research Center, Dr H.L. Trivedi Institute of Transplantation Sciences (IKDRC-ITS), Ahmedabad, Gujarat, India
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Rushi Deshpande
- Department of Nephrology, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India
| | - Manish Mali
- Department of Nephrology, Aditya Birla Memorial Hospital, Chinchwad, Pune, Maharashtra, India
| | - Ashish Sharma
- Department of Renal Transplant Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sushree Sashmita Das
- Department of Nephrology, Rabindranath Tagore International Institute of Cardiac Sciences (RNTIICS), Kolkata, West Bengal, India
| | - Sharmila Thukral
- Department of Nephrology, Rabindranath Tagore International Institute of Cardiac Sciences (RNTIICS), Kolkata, West Bengal, India
| | - Ashay Shingare
- Department of Nephrology, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India
| | - Anil Kumar Bt
- Department of Nephrology, BGS Global Hospital, Bengaluru, Karnataka, India
| | - Benil Hafeeq
- Department of Nephrology, IQRAA International Hospital and Research Centre, Kozhikode, Kerala, India
| | - Feroz Aziz
- Department of Nephrology, IQRAA International Hospital and Research Centre, Kozhikode, Kerala, India
| | | | - Jyotish Chalil Gopinathan
- Department of Nephrology, IQRAA International Hospital and Research Centre, Kozhikode, Kerala, India
| | - Rutul M Dave
- Department of Nephrology, Gujarat Kidney Foundation, Ahmedabad, India
| | - Dinesh Bansal
- Department of Nephrology, Medanta Institute of Kidney and Urology, Medanta-The Medicity, Gurugram, Haryana, India
| | - Urmila Anandh
- Department of Nephrology, Amrita Hospitals, Faridabad, Delhi, India
| | - Sarbpreet Singh
- Department of Renal Transplant Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jai Kriplani
- Department of Nephrology, Choithram Hospital and Research Center, Indore, Madhya Pradesh, India
| | - Suhas Bavikar
- Department of Nephrology, MIT Hospital and Research Institute, Aurangabad, Maharashtra, India
| | | | - Satish Balan
- Department of Nephrology, KIMS Hospital Anayara, Thiruvananthapuram, Kerala, India
| | - Manish Singla
- Department of Nephrology, Max Super Specialty Hospital, Mohali, India
| | - Munish Chauhan
- Department of Nephrology, Max Super Specialty Hospital, Mohali, India
| | | | - Devang Patwari
- Department of Nephrology, Zydus Hospitals, Ahmedabad, Gujarat, India
| | - Abi M Abraham
- Department of Nephrology, VPS Lakeshore Hospital, Kochi, Kerala, India
| | - Sanshriti Chauhan
- Department of Nephrology, Institute of Kidney Diseases and Research Center, Dr H.L. Trivedi Institute of Transplantation Sciences (IKDRC-ITS), Ahmedabad, Gujarat, India
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | - Hari Shankar Meshram
- Department of Nephrology, Institute of Kidney Diseases and Research Center, Dr H.L. Trivedi Institute of Transplantation Sciences (IKDRC-ITS), Ahmedabad, Gujarat, India
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
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24
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Gianaris K, Koech M, Hardy MA, Bagha H, Twahir A. Kenyan Policy on Organ Donation, Transfusion, and Transplantation: Implications for Africa and the Greater Transplant Community. Transplantation 2024; 108:303-305. [PMID: 38254276 DOI: 10.1097/tp.0000000000004831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Affiliation(s)
| | - Matthew Koech
- Department of Medicine, Moi University, Eldoret, Kenya
| | - Mark A Hardy
- Department of Surgery, Columbia University, New York, NY
| | - Hussein Bagha
- Department of Medicine, MP Shah Hospital, Nairobi, Kenya
| | - Ahmed Twahir
- Department of Medicine, Parklands Kidney Centre, Nairobi, Kenya
- Department of Medicine, Aga Khan University Hospital, Nairobi, Kenya
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25
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Alhasan KA, Sethi SK, Broering DC. Kidney transplants in small children: Weighing the pros and cons. Pediatr Transplant 2024; 28:e14647. [PMID: 37975180 DOI: 10.1111/petr.14647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Affiliation(s)
- Khalid A Alhasan
- Organ Transplant Center of Excellence, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
- Pediatric Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Sidharth Kumar Sethi
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity Hospital, Gurgaon, India
| | - Dieter Clemens Broering
- Organ Transplant Center of Excellence, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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26
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Yang BQ, Bai YJ, Wang LL, Dai B, Li YM, Tao Y, Shi YY. The impact of pretransplant suspected HLA antibody on the long-term outcome of the graft kidney: A retrospective cohort study. Transpl Immunol 2024; 82:101922. [PMID: 37657691 DOI: 10.1016/j.trim.2023.101922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/16/2023] [Accepted: 08/27/2023] [Indexed: 09/03/2023]
Abstract
INTRODUCTION The preoperative examination of kidney transplantation includes HLA antibody screening to initially determine the presence of preexisting donor-specific antibody (DSA) that mediates hyperacute rejection. Recipients with positive HLA antibodies require further HLA specificity analysis to type the antigen and determine the antigen mismatches between the donor and recipient. However, recipients with suspected antibodies would have no further HLA specificity analysis. It is unclear whether suspected HLA antibodies would affect renal graft function. This study aimed to explore the impact of pretransplant suspected HLA antibody on the long-term outcome of the graft kidney and thus determine the necessity of routinely performing the HLA specificity analysis in recipients with suspected HLA antibodies preoperatively. METHODS This is a single-center retrospective cohort study. 179 kidney transplant recipients (KTRs) were included and further divided into HLA antibody-negative group (Group 1) and HLA antibody-suspected groups (Group 2) based on the result of the pretransplant HLA antibody screen test. And the antibody-suspected group was further divided into a low-mismatched group (Group A) and a high-mismatched group (Group B) according to the HLA specificity analysis. We tracked the renal function indexes, biochemical indexes, and posttransplant adverse events within 5 years after transplantation and explored the necessity of further HLA specificity analysis in recipients with pretransplant suspected HLA antibodies. RESULTS There was no statistically significant difference in demographics between HLA antibody-negative group and HLA antibody-suspected groups. At 5 years of follow-up, the KTRs in HLA antibody-negative group had significantly higher eGFR levels, lower serum creatinine levels, and less urinary protein compared to those in antibody-suspected group. Meanwhile, the KTRs in low-mismatched group also had significantly higher eGFR levels, lower serum creatinine levels, and less proteinuria compared to those in high-mismatched group. Correlation analysis showed that the age of KTRs, urinary protein levels and the load capacity of HLA mismatches were associated with eGFR levels of KTRs at 5 year posttransplant. CONCLUSION KTRs with suspected HLA antibodies before kidney transplantation have worse graft function than the preoperative HLA antibody-negative recipients in the long-term posttransplant follow-up. The specific load capacity of HLA mismatches, the age of the recipient and the urinary protein was found to be negatively correlated with long-term posttransplant renal outcomes. It is necessary to undergo further HLA specificity analysis for recipients with suspected HLA antibodies in HLA antibody screen test to explicit HLA mismatches and improve long-term posttransplant outcomes.
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Affiliation(s)
- Bin-Qi Yang
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yang-Juan Bai
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041,China
| | - Lan-Lan Wang
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041,China
| | - Bo Dai
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041,China
| | - Ya-Mei Li
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041,China
| | - Ye Tao
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yun-Ying Shi
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu 610041, China.
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27
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Guo Y, Luke P, Sener A. Organ storage in renal transplantation. Curr Opin Urol 2024; 34:8-13. [PMID: 37916955 DOI: 10.1097/mou.0000000000001139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
PURPOSE OF REVIEW Kidney transplantation is vital for those with end-stage renal disease, enhancing quality of life and longevity. It is the preferred treatment but is hindered by a global disparity between donor kidney availability and demand. Therefore, optimizing organ storage techniques is crucial to mitigate the effects of ischemia reperfusion injury in available organs. Recent interest has centered on innovative methods like oxygenated normothermic perfusion and abdominal regional perfusion. RECENT FINDINGS Multiple recent metanalyses, including a Cochrane review, confirm the benefits of hypothermic machine perfusion (HMP) for deceased donor kidneys, demonstrating its utility and cost effectiveness. The benefits of oxygenated normothermic perfusion have been seen in retrospective data sets but not in prospective trials. Abdominal regional perfusion (aNRP) is gaining interest, especially for liver transplantation, but kidney specific data are scant. SUMMARY High-quality evidence backs the use of HMP for deceased donor kidneys. Despite interest in other techniques, clinical evidence for their benefits in kidney transplantation is lacking. The gap between innovation and verified success emphasizes the need for continued research and collaboration between medical professionals, researchers, and ethical committees. This review aims to further illuminate the complexities and advancements in the field, bridging the knowledge gap and aiding in the continual pursuit of excellence in transplantation.
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Affiliation(s)
- Yanbo Guo
- Division of Urology, Department of Surgery, McMaster University, Hamilton
| | - Patrick Luke
- Division of Urology, Department of Surgery, Western University, London, ON, Canada
| | - Alp Sener
- Division of Urology, Department of Surgery, Western University, London, ON, Canada
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28
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Lau KM, Chu PWK, Tang LWM, Chen BPY, Yeung NKM, Ip P, Lee P, Yap DYH, Kwok JSY. ABO-adjusted cPRA metric for kidney allocation in an Asian-predominant population. HLA 2024; 103:e15229. [PMID: 37728213 DOI: 10.1111/tan.15229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/21/2023]
Abstract
Recent studies showed that ABO-adjusted calculated panel reactive antibody (ABO-cPRA) may better reflect the histocompatibility level in a multi-ethnic population, but such data in Asians is not available. We developed an ABO-adjusted cPRA metric on a cohort of waitlist kidney transplant patients (n = 647, 99% Chinese) in Hong Kong, based on HLA alleles and ABO frequencies of local donors. The concordance between the web-based ABO-cPRA calculator and the impact on kidney allocation were evaluated. The blood group distribution for A, B, O and AB among waitlist kidney candidates were 26.2%, 27.5%, 40.1%, and 6.1%, and their chances of encountering incompatible blood group donors were 32.6%, 32.4%, 57.6%, and 0%, respectively. There is poor agreement between web-based ABO-cPRA calculator and our locally developed metrics. Over 90% of patients showed an increase in cPRA after ABO adjustment, most notably in those with cPRA between 70% and 79%. Blood group O patients had a much greater increase in cPRA scores after adjustment while patients of blood group A and B had similar increment. 10.6% of non-AB blood group waitlist patients had ABO-cPRA elevated to ≥80%. A local ABO-adjusted cPRA metric is required for Asian populations and may improve equity in kidney distribution for patients with disadvantageous blood groups. The result from the current study potentially helps other countries/localities in establishing their own unified ABO-cPRA metrics and predict the impact on kidney allocation.
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Affiliation(s)
- Kei Man Lau
- Division of Transplantation & Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Patrick W K Chu
- Division of Transplantation & Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Lydia W M Tang
- Division of Transplantation & Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Bryan P Y Chen
- Division of Transplantation & Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Nicholas K M Yeung
- Information Technology and Health Informatics Division, Hospital Authority, Kowloon, Hong Kong
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong
| | - Pamela Lee
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong
| | - Desmond Y H Yap
- Division of Nephrology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Janette S Y Kwok
- Division of Transplantation & Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
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29
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Hryshchuk SM, Parii VD. Cost-effectiveness of dialysis and kidney transplantation to treat end-stage renal disease in Ukraine. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2024; 77:765-771. [PMID: 38865635 DOI: 10.36740/wlek202404123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
OBJECTIVE Aim: To determine the economic feasibility of using kidney transplantation compared to hemodialysis in end-stage renal disease in the long term in countries with a low and medium level of economic development using the example of Ukraine. PATIENTS AND METHODS Materials and Methods: The cost effectiveness analysis method was used. Conducted Markov modeling and comparison of the consequences of kidney transplantation and hemodialysis in terms of treatment costs and the number of added years of life for a cohort of 1,675 patients were carried out. The incremental cost-effectiveness ratio is defined. RESULTS Results: Based on the results of modeling, it was determined that among 1,675 patients with end-stage kidney disease in Ukraine, 1,248 (74.5%) will remain alive after 10 years of treatment when kidney transplantation technology is used. The highest costs will be in the first year ($25,864), and in subsequent years - about $5,769. With the use of hemodialysis technology, only 728 patients (43.5%) will be alive after 10 years, the cost of treating one patient per year is $11,351. The use of kidney transplantation adds 3191 years of quality life for 1675 patients compared with hemodialysis (1.9 years per patient). CONCLUSION Conclusions: Kidney transplantation is an economically feasible technology for Ukraine, as the incremental cost-effectiveness ratio is $4694, which is 1.04 times higher than Ukraine's GDP per capita. The results of the study allow us to recommend that decision-makers in countries with a low and medium level of economic development give priority in financing to renal transplantation.
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Affiliation(s)
- Serhii M Hryshchuk
- ZHYTOMYR IVAN FRANKO STATE UNIVERSITY, ZHYTOMYR, UKRAINE; ZHYTOMYR MEDICAL INSTITUTE, ZHYTOMYR, UKRAINE
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Orfanoudaki A, Cook CB, Saghafian S, Castro J, Kosiorek HE, Chakkera HA. Diabetes mellitus and blood glucose variability increases the 30-day readmission rate after kidney transplantation. Clin Transplant 2024; 38:e15177. [PMID: 37922214 DOI: 10.1111/ctr.15177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/05/2023]
Abstract
INTRODUCTION Inpatient hyperglycemia is an established independent risk factor among several patient cohorts for hospital readmission. This has not been studied after kidney transplantation. Nearly one-third of patients who have undergone a kidney transplant reportedly experience 30-day readmission. METHODS Data on first-time solitary kidney transplantations were retrieved between September 2015 and December 2018. Information was linked to the electronic health records to determine diagnosis of diabetes mellitus and extract glucometric and insulin therapy data. Univariate logistic regression analysis and the XGBoost algorithm were used to predict 30-day readmission. We report the average performance of the models on the testing set on bootstrapped partitions of the data to ensure statistical significance. RESULTS The cohort included 1036 patients who received kidney transplantation; 224 (22%) experienced 30-day readmission. The machine learning algorithm was able to predict 30-day readmission with an average area under the receiver operator curve (AUC) of 78% with (76.1%, 79.9%) 95% confidence interval (CI). We observed statistically significant differences in the presence of pretransplant diabetes, inpatient-hyperglycemia, inpatient-hypoglycemia, minimum and maximum glucose values among those with higher 30-day readmission rates. The XGBoost model identified the index admission length of stay, presence of hyper- and hypoglycemia, the recipient and donor body mass index (BMI) values, presence of delayed graft function, and African American race as the most predictive risk factors of 30-day readmission. Additionally, significant variations in the therapeutic management of blood glucose by providers were observed. CONCLUSIONS Suboptimal glucose metrics during hospitalization after kidney transplantation are associated with an increased risk for 30-day hospital readmission. Optimizing hospital blood glucose management, a modifiable factor, after kidney transplantation may reduce the risk of 30-day readmission.
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Affiliation(s)
- Agni Orfanoudaki
- University of Oxford, England, Oxford, UK
- Harvard Kennedy School, Harvard University, Cambridge, Massachusetts, USA
| | - Curtiss B Cook
- Division of Endocrinology, Mayo Clinic Arizona, Scottsdale, Arizona, USA
| | - Soroush Saghafian
- Harvard Kennedy School, Harvard University, Cambridge, Massachusetts, USA
| | - Janna Castro
- Department of Information Technology, Mayo Clinic Hospital, Phoenix, Arizona, USA
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Isgor Z, Johnson T, Cmunt K, Lange-Maia BS. Illinois Transplant Fund Experience: Is It a Pathway to Increased Transplant Access for Hispanic Patients With Kidney Failure? Kidney Med 2024; 6:100742. [PMID: 38162539 PMCID: PMC10757032 DOI: 10.1016/j.xkme.2023.100742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024] Open
Abstract
Rationale & Objective The Illinois Transplant Fund, established in 2015, provides private health insurance premium support for noncitizen patients with kidney failure in Illinois and thus allows them to qualify for kidney transplants. Our objective was to describe trends in kidney transplant volumes over time to inform the development of a hypothesis regarding the impact of the Illinois Transplant Fund on kidney transplant volumes for adult Hispanic patients with kidney failure in Illinois, especially noncitizen patients. Study Design Retrospective study. Setting & Population We used data on the annual number of kidney transplants and kidney failure prevalence aggregated to the national and state levels from the Organ Procurement and Transplantation Network and United States Renal Data System, respectively. Outcomes The annual number of transplants as a percentage of prevalent kidney failure cases among adults over time from 2010 to 2020 by race/ethnicity for all payer and private insurance-paid transplants and the annual number of transplants by citizenship status (for Hispanic patients only) were examined for the United States (US), Illinois, and 6 selected US states. Analytical Approach Descriptive study. Results From pre- to post-Illinois Transplant Fund, the average annual number of transplants as a percentage of the average annual prevalent kidney failure cases for Hispanic adults increased by 4% in Illinois while the same figure increased by 33% for privately insured transplants. Limitations The observations reported in this paper cannot be interpreted as evidence for the program's impact. Conclusions Observed trends suggest plausibility of developing a hypothesis that Illinois Transplant Fund's introduction may have contributed to improvement in kidney transplantation access for Hispanic patients in Illinois, especially noncitizens, but cannot constitute evidence in support of or against this hypothesis. Future research should test whether the Illinois Transplant Fund improved access to kidney transplants for noncitizens with kidney failure. Plain-Language Summary Health policies regarding kidney transplant access for undocumented residents vary widely by state. The Illinois Transplant Fund (ITF) provides financial support for health insurance premiums, so undocumented patients with kidney failure in Illinois can qualify for a kidney transplant. In this study, we reported kidney transplant trends in Illinois before and after the creation of the ITF along with kidney transplant trends in the US overall and selected states that share similarities to Illinois.
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Affiliation(s)
- Zeynep Isgor
- Department of Health Systems Management, College of Health Sciences, Rush University, Chicago, IL, USA
| | - Tricia Johnson
- Department of Health Systems Management, College of Health Sciences, Rush University, Chicago, IL, USA
| | - Kevin Cmunt
- Gift of Hope Organ and Tissue Donor Network and Illinois Transplant Fund, Itasca, IL, USA
| | - Brittney S. Lange-Maia
- Department of Family & Preventive Medicine and Rush Alzheimer’s Disease Center, Rush University, Chicago, IL, USA
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Sun Z, Zhu K, Liang G, Yan F, Chao S, Jia L, Niu Y. Effect of vitamin K on improving post‑kidney transplant outcomes: a meta‑analysis. Exp Ther Med 2024; 27:30. [PMID: 38125342 PMCID: PMC10731407 DOI: 10.3892/etm.2023.12318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/18/2023] [Indexed: 12/23/2023] Open
Abstract
The effect of vitamin K on clinical outcomes in patients receiving kidney transplantation is contested according to previous studies. This meta-analysis aimed to summarize the impact of vitamin K on all-cause mortality, renal function, inflammation, and vascular/bone health in patients receiving kidney transplantation. EMBASE, PubMed, and Cochrane were searched for literature concerning the effect of vitamin K on clinical outcomes of patients receiving kidney transplantation until December 2022. Normal vitamin K status/vitamin K supplementation was considered as the experimental group; while vitamin K deficiency/no vitamin K supplementation was considered as the control group. All-cause mortality, renal function indexes, C-reactive protein (CRP), and vascular/bone health indexes were extracted and analyzed. A total of seven studies with 1,101 patients in the experimental group and 651 patients in the control group were included. All-cause mortality was decreased in the experimental group vs. the control group [relative risk (95% confidence interval (CI)]: 0.72 (0.60-0.86), P<0.001]. Regarding renal function indexes, the estimated glomerular filtration rate was increased in the experimental group vs. the control group [mean difference (95% CI): 9.87 (1.48-18.26), P=0.021]; while creatinine and albumin remained unchanged between the two groups (both P>0.05). Moreover, CRP, systolic blood pressure, diastolic blood pressure, triglycerides, hemoglobin, calcium, and 25-hydroxyvitamin D were unchanged between the two groups (all P>0.05). Publication bias was low, and the robustness assessed by sensitivity analysis was generally acceptable. Thus vitamin K exerted a potential implication in reducing all-cause mortality and improving renal function in patients receiving kidney transplantation.
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Affiliation(s)
- Zhou Sun
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Kejing Zhu
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Guofu Liang
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Fu Yan
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Sheng Chao
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Lei Jia
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yulin Niu
- Department of Organ Transplantation, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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Cacciola R, Leonardis F, Gitto L, Favi E, Gruttadauria S, Clancy M, Veroux M, Angelico R, Pagano D, Mazzeo C, Cacciola I, Santoro D, Toti L, Tisone G, Cucinotta E. Health economics aspects of kidney transplantation in Sicily: a benchmark analysis on activity and estimated savings. Front Public Health 2023; 11:1222069. [PMID: 38162608 PMCID: PMC10757609 DOI: 10.3389/fpubh.2023.1222069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024] Open
Abstract
Background International and national registries consistently report substantial differences in kidney transplant (KT) activity despite demonstrable clinical and financial benefits. The study aims to estimate the financial resources gained by KT and produce a benchmark analysis that would inform adequate strategies for the growth of the service. Methods We analyzed the KT activity in our region between 2017 and 2019. The benchmark analysis was conducted with programs identified from national and international registries. The estimate of financial resources was obtained by applying the kidney transplant coefficient of value; subsequently, we compared the different activity levels and savings generated by the three KT programs. Findings The KT activity in the region progressively declined in the study years, producing a parallel reduction of the estimated savings. Such savings were substantially inferior when compared to those generated by benchmark programs (range €18-22 million less). Interpretation The factors influencing the reduced KT activity in the study period with the related "foregone savings" are multiple, as well as interdependent. Organ donation, access to the transplant waiting list, and KT from living donors appear to be the most prominent determinants of the observed different levels of activities. International experience suggests that a comprehensive strategy in the form of a "task force" may successfully address the critical areas of the service reversing the observed trend. The financial impact of a progressively reduced KT activity may be as critical as its clinical implications, jeopardizing the actual sustainability of services for patients with end-stage kidney disease.
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Affiliation(s)
- Roberto Cacciola
- Department of Surgical Sciences, Tor Vergata University, Rome, Italy
| | - Francesca Leonardis
- Department of Surgical Sciences, Tor Vergata University, Rome, Italy
- Intensive Care Unit, Organ and Tissue Procurement Policlinico Tor Vergata, Rome, Italy
| | - Lara Gitto
- Dipartimento di Economia, Università Degli Studi di Messina, Messina, Italy
| | - Evaldo Favi
- General Surgery and Kidney Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Clinical Sciences and Community Health, Università Degli Studi di Milano, Milan, Italy
| | - Salvatore Gruttadauria
- Department for the Treatment and Study of Abdominal Diseases and Abdominal Transplantation, University of Istituto di Ricovero e Cura a Carattere Scientifico – Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, University of Pittsburgh Medical Center Italy, Palermo, Italy
- Department of Surgery and Surgical and Medical Specialties, University of Catania, Catania, Italy
| | - Marc Clancy
- Institute of Cardiovascular and Molecular Sciences, Glasgow University, Glasgow, United Kingdom
| | - Massimiliano Veroux
- General Surgery Unit, Organ Transplant Unit, University Hospital of Catania, Catania, Italy
| | - Roberta Angelico
- Department of Surgical Sciences, Tor Vergata University, Rome, Italy
| | - Duilio Pagano
- Department for the Treatment and Study of Abdominal Diseases and Abdominal Transplantation, University of Istituto di Ricovero e Cura a Carattere Scientifico – Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, University of Pittsburgh Medical Center Italy, Palermo, Italy
| | - Carmelo Mazzeo
- Department of Human Pathology, Emergency Surgery Unit, Università Degli Studi di Messina, Messina, Italy
| | - Irene Cacciola
- Department of Clinical and Experimental Medicine, Medicine and Hepatology Unit, Università Degli Studi di Messina, Messina, Italy
| | - Domenico Santoro
- Department of Clinical and Experimental Medicine, Nephrology and Dialysis Unit, Università Degli Studi di Messina, Messina, Italy
| | - Luca Toti
- Department of Surgical Sciences, Tor Vergata University, Rome, Italy
| | - Giuseppe Tisone
- Department of Surgical Sciences, Tor Vergata University, Rome, Italy
| | - Eugenio Cucinotta
- General Surgery Unit, Organ Transplant Unit, University Hospital of Catania, Catania, Italy
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Guo S, Jia D, Liu X, Gao L, Wang H, Chen C, Wu Y. The positive efficacy of dexmedetomidine on the clinical outcomes of patients undergoing renal transplantation: evidence from meta-analysis. Aging (Albany NY) 2023; 15:14192-14209. [PMID: 38085644 PMCID: PMC10756127 DOI: 10.18632/aging.205296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/02/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION Whether dexmedetomidine (DEX), an anesthetic adjuvant, can improve renal transplant outcomes is not clear. METHODS We systematically identified clinical trials in which DEX was administered in renal transplantation (RT). On November 1, 2022, we searched The Cochrane Library, MEDLINE, EMBASE and https://www. CLINICALTRIALS gov/. The main outcomes were delayed graft function and acute rejection. RESULTS A total of seven studies were included in the meta-analysis. The results showed that compared with the control, DEX significantly reduced the occurrence of delayed graft function (RR 0.76; 95% CI 0.60-0.98), short-term serum creatinine [postoperative day (POD) 2: (MD -22.82; 95% CI -42.01 - -3.64)] and blood urea nitrogen [POD 2: (MD -2.90; 95% CI -5.10 - -0.70); POD 3: (MD 2.07; 95% CI -4.12 - -0.02)] levels, postoperative morphine consumption (MD -4.27; 95% CI -5.92 - -2.61) and the length of hospital stay (MD -0.85; 95% CI-1.47 - -0.23). However, DEX did not reduce the risk of postoperative acute rejection (RR 0.75; 95% CI 0.45-1.23). The results of the subgroup analysis showed that country type, donor type, and average age had a certain impact on the role of DEX. CONCLUSIONS DEX may improve the short-term clinical outcome of RT and shorten the length of hospital stay of patients.
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Affiliation(s)
- Shanshan Guo
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Degong Jia
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Xueqi Liu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Li Gao
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Huaying Wang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Chaoyi Chen
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Yonggui Wu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
- Center for Scientific Research of Anhui Medical University, Hefei, Anhui 230022, PR China
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Bamgboye EL. Kidney Transplantation in Sub-Saharan Africa: History and Current Status. KIDNEY360 2023; 4:1772-1775. [PMID: 37962555 PMCID: PMC10758520 DOI: 10.34067/kid.0000000000000293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023]
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Carter AJ, Qu H, Reed RD, Killian AC, Kumar V, Hanaway M, Locke JE. Interpersonal Connections Are Important for Virtual Kidney Transplant Educational Program Development. Prog Transplant 2023; 33:301-309. [PMID: 37936413 PMCID: PMC10842874 DOI: 10.1177/15269248231212905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Introduction: The Living Donor Navigator program is designed to mitigate disparities in living donor kidney transplantation, although geographic disparities in program participation were observed in the initial years of implementation. The purpose of this study was to understand participant perspectives regarding the use of a virtual option/alternative to expand program participation. Methods: Previous participants of the in-person navigator program were purposively sampled. Using the nominal group technique, a well-structured formative methodology to elicit participant perspectives, 2 meetings were conducted among transplant recipients and advocates (N = 13) to identify and prioritize responses to the question "What things would concern you about participating in a virtual and remote Living Donor Navigator program?" Findings: Mean participant age was 59.3 (9.3) years, and participants were 54% male and 62% white. Education levels varied from less than high school to master's degrees. Participants generated 70 unique responses, of which 36 (51.4%) received prioritization. The top 5 ranked responses of each nominal group technique meeting received approximately 50 percent (47.6% vs. 66.7%, respectively) of the total votes and described the potentially limited interpersonal connections, time conflicts, and differing content in a virtual navigator program compared to the in-person model. Discussion: These data suggest that previous participants were concerned with upholding the original design of the program, thus, virtual living donor kidney transplantation programs should aim to maintain interpersonal connections and consistency of content to ensure adequate programmatic engagement. Future research will focus on program fidelity independent of delivery modality.
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Affiliation(s)
- Alexis J. Carter
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 749 Birmingham, Alabama 35294
| | - Haiyan Qu
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 735 Birmingham, Alabama 35294
| | - Rhiannon D. Reed
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 738 Birmingham, Alabama 35294
| | - A. Cozette Killian
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 758 Birmingham, Alabama 35294
| | - Vineeta Kumar
- Division of Nephrology, Department of Medicine, University of Alabama Comprehensive Transplant Institute, 1900 University Boulevard, THT 643 Birmingham, Alabama 35233
| | - Michael Hanaway
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 746 Birmingham, Alabama 35294
| | - Jayme E. Locke
- Division of Transplantation, Department of Surgery, University of Alabama Comprehensive Transplant Institute, 510 20 Street South, FOT 758 Birmingham, Alabama 35294
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Ellison TA, Bae S, Chow EKH, Massie AB, Kucirka LM, Van Arendonk KJ, Segev DL. Evaluating Cost-Effectiveness in Using High-Kidney Donor Profile Index Organs. Transplant Proc 2023; 55:2333-2344. [PMID: 37925233 PMCID: PMC10841655 DOI: 10.1016/j.transproceed.2023.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/22/2023] [Indexed: 11/06/2023]
Abstract
A more granular donor kidney grading scale, the kidney donor profile index (KDPI), has recently emerged in contradistinction to the standard criteria donor/expanded criteria donor framework. In this paper, we built a Markov decision process model to evaluate the survival, quality-adjusted life years (QALY), and cost advantages of using high-KDPI kidneys based on multiple KDPI strata over a 60-month time horizon as opposed to remaining on the waiting list waiting for a lower-KDPI kidney. Data for the model were gathered from the Scientific Registry of Transplant Recipients and the United States Renal Data System Medicare parts A, B, and D databases. Of the 129,024 phenotypes delineated in this model, 65% of them would experience a survival benefit, 81% would experience an increase in QALYs, 87% would see cost-savings, and 76% would experience cost-savings per QALY from accepting a high-KDPI kidney rather than remaining on the waiting list waiting for a kidney of lower-KDPI. Classification and regression tree analysis (CART) revealed the main drivers of increased survival in accepting high-KDPI kidneys were wait time ≥30 months, panel reactive antibody (PRA) <90, age ≥45 to 65, diagnosis leading to renal failure, and prior transplantation. The CART analysis showed the main drivers of increased QALYs in accepting high-kidneys were wait time ≥30 months, PRA <90, and age ≥55 to 65.
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Affiliation(s)
- Trevor A Ellison
- Department of Cardiothoracic Surgery, Genesis Healthcare, Zanesville, OH.
| | - Sunjae Bae
- Department of Surgery, NYU Grossman School of Medicine, NY; Department of Population Health, NYU Grossman School of Medicine, NY
| | - Eric K H Chow
- Rosalind Franklin University of Medicine and Science, North Chicago, IL
| | - Allan B Massie
- Department of Surgery, NYU Grossman School of Medicine, NY; Department of Population Health, NYU Grossman School of Medicine, NY
| | - Lauren M Kucirka
- Department of Obstetrics and Gynecology, University of North Carolina, NC
| | - Kyle J Van Arendonk
- Department of Surgery, Division of Pediatric Surgery, Medical College of Wisconsin, WI
| | - Dorry L Segev
- Department of Surgery, NYU Grossman School of Medicine, NY; Department of Population Health, NYU Grossman School of Medicine, NY
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Abinti M, Favi E, Alfieri CM, Zanoni F, Armelloni S, Ferraresso M, Cantaluppi V, Castellano G. Update on current and potential application of extracellular vesicles in kidney transplantation. Am J Transplant 2023; 23:1673-1693. [PMID: 37517555 DOI: 10.1016/j.ajt.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/28/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023]
Abstract
Kidney transplantation (KT) is the best treatment for end-stage kidney disease. However, early diagnosis of graft injury remains challenging, mainly because of the lack of accurate and noninvasive diagnostic techniques. Improving graft outcomes is equally demanding, as is the development of innovative therapies. Many research efforts are focusing on extracellular vesicles, cellular particles free in each body fluid that have shown promising results as precise markers of damage and potential therapeutic targets in many diseases, including the renal field. In fact, through their receptors and cargo, they act in damage response and immune modulation. In transplantation, they may be used to determine organ quality and aging, the presence of delayed graft function, rejection, and many other transplant-related pathologies. Moreover, their low immunogenicity and safe profile make them ideal for drug delivery and the development of therapies to improve KT outcomes. In this review, we summarize current evidence about extracellular vesicles in KT, starting with their characteristics and major laboratory techniques for isolation and characterization. Then, we discuss their use as potential markers of damage and as therapeutic targets, discussing their promising use in clinical practice as a form of liquid biopsy.
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Affiliation(s)
- Matteo Abinti
- Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Evaldo Favi
- Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Carlo Maria Alfieri
- Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Francesca Zanoni
- Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Division of Nephrology, Department of Medicine, Vagelos College of Physicians & Surgeons, Columbia University, New York, New York, USA
| | - Silvia Armelloni
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Mariano Ferraresso
- Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Vincenzo Cantaluppi
- Nephrology and Kidney Transplant Unit, Department of Translational Medicine (DIMET), University of Piemonte Orientale (UPO), "Maggiore della Carita" University Hospital, Novara, Italy
| | - Giuseppe Castellano
- Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
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Krieger N, Chodoff L, Leventhal JR, Ho B, Richards M, Schaumberg DA, Laidlaw D, Ildstad ST, Axelrod DA. Immune tolerance via FCR001 cell therapy compared with maintenance immunosuppression for kidney transplantation: Real-world evidence analysis of safety and efficacy. Clin Transplant 2023; 37:e15074. [PMID: 37534547 DOI: 10.1111/ctr.15074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023]
Abstract
While kidney transplantation (KTx) has traditionally required lifelong immunosuppression, an investigational stem cell therapy, FCR001, has been demonstrated to induce tolerance and eliminate the need for immunosuppression through the establishment of persistent mixed chimerism in a phase 2 clinical study. Real-world evidence (RWE) methods were employed to compare the safety and efficacy of non-myeloablative conditioning with FCR001 with standard of care [SOC] immunosuppression in a retrospective single-center analysis of outcomes among propensity score matched living-donor KTx receiving SOC (n = 144) or FCR001 (n = 36). Among the FCR001 recipients, 26 (72%) developed persistent chimerism allowing durable elimination of all immunosuppression. There was no significant difference in the composite primary endpoint (biopsy-proven acute rejection [BPAR], graft loss, or death) at 60 months (FCR001 27.8%, n = 10 and SOC 28.5%, n = 41; p = .9). FCR001 recipients demonstrated superior kidney function at 5 years (estimated glomerular filtration rate [eGFR] [mean ± standard deviation]: 64.1 ± 15.3) compared to SOC (51.7 ± 18.8; p = .02). At 5 years, FCR001 recipients experienced fewer complications including new-onset diabetes post-transplant, although two patients developed graft versus host disease. In conclusion, RWE demonstrated that KTx combined with non-myeloablative conditioning and FCR001 resulting in superior kidney function without increasing the risk of rejection, graft loss, or death among patients off immunosuppression.
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Affiliation(s)
- Nancy Krieger
- Talaris Therapeutics, Inc., Wellesley, Massachusetts, USA
| | | | | | - Bing Ho
- Comprehensive Transplant Ctr, Chicago, Illinois, USA
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Pickles CW, Brown C, Marks SD, Reynolds BC, Kessaris N, Dudley J. Long term outcomes following kidney transplantation in children who weighed less than 15 kg - report from the UK Transplant Registry. Pediatr Nephrol 2023; 38:3803-3810. [PMID: 37209174 DOI: 10.1007/s00467-023-06024-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Kidney transplantation is the treatment of choice in chronic kidney disease (CKD) stage 5. It is often delayed in younger children until a target weight is achieved due to technical feasibility and historic concerns about poorer outcomes. METHODS Data on all first paediatric (aged < 18 years) kidney only transplants performed in the United Kingdom between 1 January 2006 and 31 December 2016 were extracted from the UK Transplant Registry (n = 1,340). Children were categorised by weight at the time of transplant into those < 15 kg and those ≥ 15 kg. Donor, recipient and transplant characteristics were compared between groups using chi-squared or Fisher's exact test for categorical variables and Kruskal-Wallis test for continuous variables. Thirty day, one-year, five-year and ten-year patient and kidney allograft survival were compared using the Kaplan-Meier method. RESULTS There was no difference in patient survival following kidney transplantation when comparing children < 15 kg with those ≥ 15 kg. Ten-year kidney allograft survival was significantly better for children < 15 kg than children ≥ 15 kg (85.4% vs. 73.5% respectively, p = 0.002). For children < 15 kg, a greater proportion of kidney transplants were from living donors compared with children ≥ 15 kg (68.3% vs. 49.6% respectively, p < 0.001). There was no difference in immediate graft function between the groups (p = 0.54) and delayed graft function was seen in 4.8% and 6.8% of children < 15 kg and ≥ 15 kg respectively. CONCLUSIONS Our study reports significantly better ten-year kidney allograft survival in children < 15 kg and supports consideration of earlier transplantation for children with CKD stage 5. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Charles W Pickles
- Department of Paediatric Nephrology, Great North Children's Hospital, Newcastle Upon Tyne, NE1 4LP, UK.
| | - Chloe Brown
- Department of Statistics and Clinical Research, NHS Blood and Transplant, Bristol, UK
| | - Stephen D Marks
- NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London Great Ormond Street Institute of Child Health, London, UK
- Department of Paediatric Nephrology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Ben C Reynolds
- Department of Paediatric Nephrology, Royal Hospital for Children, 1345 Govan Road, Glasgow, UK
| | - Nicos Kessaris
- Department of Paediatric Nephrology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Jan Dudley
- Department of Paediatric Nephrology, Bristol Royal Hospital for Children, Bristol, UK
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Husain SA, Yu ME, King KL, Adler JT, Schold JD, Mohan S. Disparities in Kidney Transplant Waitlisting Among Young Patients Without Medical Comorbidities. JAMA Intern Med 2023; 183:1238-1246. [PMID: 37782509 PMCID: PMC10546295 DOI: 10.1001/jamainternmed.2023.5013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 08/07/2023] [Indexed: 10/03/2023]
Abstract
Importance Disparities in kidney transplant referral and waitlisting contribute to disparities in kidney disease outcomes. Whether these differences are rooted in population differences in comorbidity burden is unclear. Objective To examine whether disparities in kidney transplant waitlisting were present among a young, relatively healthy cohort of patients unlikely to have medical contraindications to kidney transplant. Design, Setting, and Participants This retrospective cohort study used the US Renal Data System Registry to identify patients with end-stage kidney disease who initiated dialysis between January 1, 2005, and December 31, 2019. Patients who were older than 40 years, received a preemptive transplant, were preemptively waitlisted, or had documented medical comorbidities other than hypertension or smoking were excluded, yielding an analytic cohort of 52 902 patients. Data were analyzed between March 1, 2022, and February 1, 2023. Main Outcome(s) and Measure(s) Kidney transplant waitlisting after dialysis initiation. Results Of 52 902 patients (mean [SD] age, 31 [5] years; 31 132 [59%] male; 3547 [7%] Asian/Pacific Islander, 20 782 [39%] Black/African American, and 28 006 [53%] White) included in the analysis, 15 840 (30%) were waitlisted for a kidney transplant within 1 year of dialysis initiation, 11 122 (21%) were waitlisted between 1 and 5 years after dialysis initiation, and 25 940 (49%) were not waitlisted by 5 years. Patients waitlisted within 1 year of dialysis initiation were more likely to be male, to be White, to be employed full time, and to have had predialysis nephrology care. There were large state-level differences in the proportion of patients waitlisted within 1 year (median, 33%; range, 15%-58%). In competing risk regression, female sex (adjusted subhazard ratio [SHR], 0.92; 95% CI, 0.90-0.94), Hispanic ethnicity (SHR, 0.77; 95% CI, 0.75-0.80), and Black race (SHR, 0.66; 95% CI, 0.64-0.68) were all associated with lower waitlisting after dialysis initiation. Unemployment (SHR, 0.47; 95% CI, 0.45-0.48) and part-time employment (SHR, 0.74; 95% CI, 0.70-0.77) were associated with lower waitlisting compared with full-time employment, and more than 1 year of predialysis nephrology care, compared with none, was associated with greater waitlisting (SHR, 1.51; 95% CI, 1.46-1.56). Conclusions and Relevance This retrospective cohort study found that fewer than one-third of patients without major medical comorbidities were waitlisted for a kidney transplant within 1 year of dialysis initiation, with sociodemographic disparities in waitlisting even in this cohort of young, relatively healthy patients unlikely to have a medical contraindication to transplantation. Transplant policy changes are needed to increase transparency and address structural barriers to waitlist access.
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Affiliation(s)
- S. Ali Husain
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, New York
- The Columbia University Renal Epidemiology (CURE) Group, New York, New York
| | - Miko E. Yu
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, New York
- The Columbia University Renal Epidemiology (CURE) Group, New York, New York
| | - Kristen L. King
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, New York
- The Columbia University Renal Epidemiology (CURE) Group, New York, New York
| | - Joel T. Adler
- Department of Surgery and Perioperative Care, Dell Medical School at the University of Texas at Austin, Austin
| | - Jesse D. Schold
- Department of Surgery, University of Colorado–Anschutz Medical Campus, Aurora
- Department of Epidemiology, School of Public Health, University of Colorado–Anschutz Medical Campus, Aurora
| | - Sumit Mohan
- Division of Nephrology, Department of Medicine, Columbia University College of Physicians & Surgeons, New York, New York
- The Columbia University Renal Epidemiology (CURE) Group, New York, New York
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
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Minato ACDS, Hannun PGC, Barbosa AMP, da Rocha NC, Machado-Rugolo J, Cardoso MMDA, de Andrade LGM. Machine Learning Model to Predict Graft Rejection After Kidney Transplantation. Transplant Proc 2023; 55:2058-2062. [PMID: 37730451 DOI: 10.1016/j.transproceed.2023.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/07/2023] [Accepted: 07/04/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND There are few predictive studies about early posttransplant outcomes taking into account baseline and posttransplant variables. The objective of this study was to create a predictive model for 30-day graft rejection using machine learning techniques. METHODS Retrospective study with 1255 patients undergoing transplant from living and deceased donors at a tertiary health service in Brazil. Recipient, donor, transplantation, and postoperative period data were collected from physical and electronic records. We split the data into derivation (training) and validation (test) datasets. Five supervised machine learning algorithms were developed with this subset of variables in the training set: Simple Logistic Regression, Lasso, Multilayer Perceptron, XGBoost, and Light GBM. RESULTS There were 147 (12.48%) cases of graft rejection within 30 days of transplantation. The best model was XGBoost (accuracy, 0.839; receiver operating characteristic area under the curve, 0.715; precision, 0.900). The model showed that deceased donor transplantation, glomerulopathy as an underlying disease, and donor's use of vasoactive drugs had more than 20% importance as rejection risk factors. The variables with the greatest predictive values were thymoglobulin induction and delayed graft function. CONCLUSIONS We fitted a machine learning model to predict 30-day graft rejection after kidney transplantation that reaches a higher accuracy and precision. Machine learning models could contribute to predicting kidney survival using nontraditional approaches.
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Affiliation(s)
| | | | - Abner Macola Pacheco Barbosa
- Department of Internal Medicine, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Botucatu, Brazil
| | - Naila Camila da Rocha
- Department of Internal Medicine, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Botucatu, Brazil
| | - Juliana Machado-Rugolo
- Health Technology Assessment Center (NATS), Clinical Hospital of Botucatu Medical School (HCFMB), São Paulo State University (UNESP), Botucatu, Brazil
| | - Marilia Mastrocolla de Almeida Cardoso
- Department of Internal Medicine, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Botucatu, Brazil; Health Technology Assessment Center (NATS), Clinical Hospital of Botucatu Medical School (HCFMB), São Paulo State University (UNESP), Botucatu, Brazil
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Ma Y, Man J, Gui H, Niu J, Yang L. Advancement in preoperative desensitization therapy for ABO incompatible kidney transplantation recipients. Transpl Immunol 2023; 80:101899. [PMID: 37433394 DOI: 10.1016/j.trim.2023.101899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/13/2023]
Abstract
ABO incompatibility has long been considered an absolute contraindication for kidney transplantation. However, with the increasing number of patients with ESRD in recent years, ABO-incompatible kidney transplantation (ABOi-KT) has expanded the types of donors by crossing the blood group barrier through preoperative desensitization therapy. At present, the desensitization protocols consist of removal of preexisting ABO blood group antibody titers and prevention of ABO blood group antibody return. Studies have suggested similar patient and graft survival among ABOi-KT and ABOc-KT recipients. In this review, we will summarize the effective desensitization regimens of ABOi-KT, aiming to explore effective ways to improve the success rate and the long-term survival rate of ABOi-KT recipients.
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Affiliation(s)
- Yuhua Ma
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China; Gansu Province Clinical Research Center for Urology, Lanzhou, China; Second Clinical School, Lanzhou University, Lanzhou, China
| | - Jiangwei Man
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China; Gansu Province Clinical Research Center for Urology, Lanzhou, China; Second Clinical School, Lanzhou University, Lanzhou, China
| | - Huiming Gui
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China; Gansu Province Clinical Research Center for Urology, Lanzhou, China
| | - Jiping Niu
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China; Gansu Province Clinical Research Center for Urology, Lanzhou, China
| | - Li Yang
- Department of Urology, The Second Hospital of Lanzhou University, Lanzhou, China; Gansu Province Clinical Research Center for Urology, Lanzhou, China; Second Clinical School, Lanzhou University, Lanzhou, China.
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Buford J, Retzloff S, Wilk AS, McPherson L, Harding JL, Pastan SO, Patzer RE. Race, Age, and Kidney Transplant Waitlisting Among Patients Receiving Incident Dialysis in the United States. Kidney Med 2023; 5:100706. [PMID: 37753250 PMCID: PMC10518364 DOI: 10.1016/j.xkme.2023.100706] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Rationale & Objective Patients with kidney failure from racial and ethnic minority groups and older patients have reduced access to the transplant waitlist relative to White and younger patients. Although racial disparities in the waitlisting group have declined after the 2014 kidney allocation system change, whether there is intersectionality of race and age in waitlisting access is unknown. Study Design Retrospective cohort study. Setting & Participants 439,455 non-Hispanic White and non-Hispanic Black US adults initiating dialysis between 2015 and 2019 were identified from the United States Renal Data System, and followed through 2020. Exposures Patient race and ethnicity (non-Hispanic White and non-Hispanic Black) and age group (18-29, 30-49, 50-64, and 65-80 years). Outcomes Placement on the United Network for Organ Sharing deceased donor waitlist. Analytical Approach Age- and race-stratified waitlisting rates were compared. Multivariable Cox proportional hazards models, censored for death, examined the association between race and waitlisting, and included interaction term for race and age. Results Over a median follow-up period of 1 year, the proportion of non-Hispanic White and non-Hispanic Black patients waitlisted was 20.7% and 20.5%, respectively. In multivariable models, non-Hispanic Black patients were 14% less likely to be waitlisted (aHR, 0.86, 95% CI, 0.77-0.95). Relative differences between non-Hispanic Black and non-Hispanic White patients were different by age group. Non-Hispanic Black patients were 27%, 12%, and 20% less likely to be waitlisted than non-Hispanic White patients for ages 18-29 years (aHR, 0.73; 95% CI, 0.61-0.86), 50-64 (aHR, 0.88; 95% CI, 0.80-0.98), and 65-80 years (aHR, 0.80; 95% CI, 0.71-0.90), respectively, but differences were attenuated among patients aged 30-49 years (aHR, 0.89; 95% CI, 0.77-1.02). Limitations Race and ethnicity data is physician reported, residual confounding, and analysis is limited to non-Hispanic White and non-Hispanic Black patients. Conclusions Racial disparities in waitlisting exist between non-Hispanic Black and non-Hispanic White individuals and are most pronounced among younger patients with kidney failure. Results suggest that interventions to address inequalities in waitlisting may need to be targeted to younger patients with kidney failure. Plain-Language Summary Research has shown that patients from racial and ethnic minority groups and older patients have reduced access to transplant waitlisting relative to White and younger patients; nevertheless, how age impacts racial disparities in waitlisting is unknown. We compared waitlisting between non-Hispanic Black and non-Hispanic White patients with incident kidney failure, within age strata, using registry data for 439,455 US adults starting dialysis (18-80 years) during 2015-2019. Overall, non-Hispanic Black patients were less likely to be waitlisted and relative differences between the two racial groups differed by age. After adjusting for patient-level factors, the largest disparity in waitlisting was observed among adults aged 18-29 years. These results suggest that interventions should target younger adults to reduce disparities in access to kidney transplant waitlisting.
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Affiliation(s)
- Jade Buford
- Regenstrief Institute, Indianapolis, Indiana
| | - Samantha Retzloff
- HIV Surveillance Branch (HSB), Division of HIV Prevention (DHP), National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Adam S. Wilk
- Department of Health Policy and Management, Rollins School of Public Health, Emory University, Emory University School of Medicine, Atlanta, Georgia
| | - Laura McPherson
- Department of Epidemiology, Rollins School of Public Health, Emory University, Emory University, Emory University School of Medicine, Atlanta, Georgia
| | - Jessica L. Harding
- Department of Epidemiology, Rollins School of Public Health, Emory University, Emory University, Emory University School of Medicine, Atlanta, Georgia
- Division of Transplantation, Department of Surgery, Emory University, Emory University School of Medicine, Atlanta, Georgia
- Health Services Research Center, Emory University School of Medicine, Emory University, Emory University School of Medicine, Atlanta, Georgia
| | - Stephen O. Pastan
- Department of Medicine, Renal Division, Emory University, Emory University School of Medicine, Atlanta, Georgia
| | - Rachel E. Patzer
- Regenstrief Institute, Indianapolis, Indiana
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
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Pathak NJ, Ganpule AP, Shetty R, Balaji S, Shete N, Singh A, Sabnis RB, Desai MR. Study of the predictive factors affecting outcomes of patients undergoing transperitoneal laparoscopic donor nephrectomy. Int Urol Nephrol 2023; 55:2457-2464. [PMID: 37421510 DOI: 10.1007/s11255-023-03699-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 06/29/2023] [Indexed: 07/10/2023]
Abstract
PURPOSE We aim to study the preoperative and intraoperative factors and compare against specific outcomes in patients undergoing transperitoneal laparoscopic donor nephrectomy and see if we could find what were the predictive factors for these outcomes. METHODS This is a prospective cohort study done in a single high-volume transplant center. 153 kidney donors were evaluated over a period of 1 year. The preoperative factors such as age, gender, smoking status, obesity, visceral obesity, perinephric fat thickness, number of vessels, anatomic abnormalities, comorbidities, and side of kidney and intraoperative factors such as lay of colon on the kidney, height of splenic or hepatic flexure of colon, loaded or unloaded colon, and sticky mesenteric fat were compared against specific outcomes such as duration of surgery, duration of hospital stay, postoperative paralytic ileus, and postoperative wound complications. RESULTS Multivariate logistic regression models were used to study the variables of interest against the various outcomes. There were three positive risk factors for increased hospital stay, which were perinephric fat thickness and height of splenic or hepatic flexure of colon and smoking history. There was one positive risk factor for postoperative paralytic ileus which is lay of colon with relation to kidney and there was one positive risk factor for postoperative wound complication which was visceral fat area. CONCLUSION The predictive factors for adverse postoperative outcomes after transperitoneal laparoscopic donor nephrectomy were perinephric fat thickness, height of splenic or hepatic flexure, smoking status, lay or redundancy of colon with relation to kidney and visceral fat area.
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Affiliation(s)
- Niramya J Pathak
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India.
| | - Arvind P Ganpule
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Raisa Shetty
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Sudharsan Balaji
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Nitiraj Shete
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Abhishek Singh
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Ravindra B Sabnis
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
| | - Mahesh R Desai
- Urology Department, Muljibhai Patel Urological Hospital, Nadiad, Gujarat, India
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Olumba FC, Vachharajani N, Yu J, Scherer M, Matson S, Hill AL, Kiani A, Lin Y, Doyle MMB, Chapman WC, Wellen JR, Khan AS. Robotic donor nephrectomy: optimizing outcomes beyond the limitations of laparoscopy. Surg Endosc 2023; 37:7511-7519. [PMID: 37415014 DOI: 10.1007/s00464-023-10246-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Robotic donor nephrectomy (RDN) has emerged as a safe alternate to laparoscopic donor nephrectomy (LDN), offering improved visualization, instrument dexterity and ergonomics. There is still concern about how to safely transition from LDN to RDN. METHODS We performed a retrospective review of 150 consecutive living donor operations (75 LDN and 75 RDN) at our center, comparing the first 75 RDN's with the last 75 LDN's performed prior to the initiation of the robotic transplant program. Operative times and complications were used as surrogates of efficiency and safety, respectively, to estimate the learning curve with RDN. RESULTS RDN was associated with a longer total operative time (RDN 182 vs LDN 144 min; P < 0.0001) but a significantly shorter post-operative length of stay (RDN 1.8 vs LDN 2.1 days; P = 0.0213). Donor complications and recipient outcomes were the same between both groups. Learning curve of RDN was estimated to be about 30 cases. CONCLUSIONS RDN is a safe alternate to LDN with acceptable donor morbidity and no negative impact on recipient outcomes even during the early part of the RDN learning curve. Surgeon preferences for the robotic approach compared to traditional laparoscopy will require further scrutiny to improve ergonomics and operative efficiency.
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Affiliation(s)
- Franklin C Olumba
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Neeta Vachharajani
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Jennifer Yu
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Meranda Scherer
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Sarah Matson
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Angela L Hill
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Amen Kiani
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Yiing Lin
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Majella M B Doyle
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - William C Chapman
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Jason R Wellen
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA
| | - Adeel S Khan
- Department of Surgery, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO, 63110, USA.
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Dong L, Zhu X, Zhao H, Zhao Q, Liu S, Liu J, Gong L. Development and validation of a LASSO-based prediction model for immunosuppressive medication nonadherence in kidney transplant recipients. Ren Fail 2023; 45:2238832. [PMID: 38532721 PMCID: PMC10512851 DOI: 10.1080/0886022x.2023.2238832] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/15/2023] [Indexed: 03/28/2024] Open
Abstract
INTRODUCTION To establish a prediction model to predict immunosuppressive medication (IM) nonadherence in kidney transplant recipients (KTRs) based on a combined theory framework. METHODS This polycentric, cross-sectional study included 1191 KTRs from October 2020 to February 2021 in China, with 1011 KTRs enrolled in the derivation set and 180 in the external validation set. Variables selected based on the combined theory of planned behavior (TPB)/health belief model (HBM) theory were analyzed by the least absolute shrinkage and selection operator (LASSO). Internal 10 cross-validation was conducted to determine the optimal lambda value. The receiver operating characteristic (ROC) curve, specificity, and sensitivity were used to evaluate the prediction model, and further assessment was run by external validation. RESULTS IM nonadherence rate was 38.48% in the derivation set and 37.22% in the validation set. The LASSO model was developed with eight predictors for IM nonadherence: age, preoperative drinking history, education, marital status, perceived barriers, social support, perceived behavioral control, and perceived susceptibility. The model demonstrated acceptable discrimination with the area under the ROC curve of 0.797 (95% CI: 0.745-0.850) in the internal validation set and 0.757 (95% CI: 0.684-0.829) in the external validation set. The specificity and sensitivity in the internal validation and external validation set were 0.741, 0.748, 0.673, and 0.716, respectively. CONCLUSIONS The LASSO model was developed to guide identifying high-risk nonadherent patients and timely and effective interventions to improve their prognosis and survival.
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Affiliation(s)
- Lei Dong
- Nursing School, Central South University, Changsha, China
| | - Xiao Zhu
- Nursing Department, The Third Xiangya Hospital of Central South University, Changsha, China
- Research Center of Chinese Health Ministry on Transplantation Medicine Engineering and Technology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Hongyu Zhao
- Nursing School, Central South University, Changsha, China
| | - Qin Zhao
- Nursing School, Central South University, Changsha, China
| | - Shan Liu
- College of Nursing and Public Health, Adelphi University, New York, NY, USA
| | - Jia Liu
- Nursing School, Central South University, Changsha, China
- Nursing Department, The Third Xiangya Hospital of Central South University, Changsha, China
- Research Center of Chinese Health Ministry on Transplantation Medicine Engineering and Technology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Lina Gong
- Nursing Department, The Third Xiangya Hospital of Central South University, Changsha, China
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
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Malhotra D, Jethwani P. Preventing Rejection of the Kidney Transplant. J Clin Med 2023; 12:5938. [PMID: 37762879 PMCID: PMC10532029 DOI: 10.3390/jcm12185938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
With increasing knowledge of immunologic factors and with the advent of potent immunosuppressive agents, the last several decades have seen significantly improved kidney allograft survival. However, despite overall improved short to medium-term allograft survival, long-term allograft outcomes remain unsatisfactory. A large body of literature implicates acute and chronic rejection as independent risk factors for graft loss. In this article, we review measures taken at various stages in the kidney transplant process to minimize the risk of rejection. In the pre-transplant phase, it is imperative to minimize the risk of sensitization, aim for better HLA matching including eplet matching and use desensitization in carefully selected high-risk patients. The peri-transplant phase involves strategies to minimize cold ischemia times, individualize induction immunosuppression and make all efforts for better HLA matching. In the post-transplant phase, the focus should move towards individualizing maintenance immunosuppression and using innovative strategies to increase compliance. Acute rejection episodes are risk factors for significant graft injury and development of chronic rejection thus one should strive for early detection and aggressive treatment. Monitoring for DSA development, especially in high-risk populations, should be made part of transplant follow-up protocols. A host of new biomarkers are now commercially available, and these should be used for early detection of rejection, immunosuppression modulation, prevention of unnecessary biopsies and monitoring response to rejection treatment. There is a strong push needed for the development of new drugs, especially for the management of chronic or resistant rejections, to prolong graft survival. Prevention of rejection is key for the longevity of kidney allografts. This requires a multipronged approach and significant effort on the part of the recipients and transplant centers.
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Affiliation(s)
- Divyanshu Malhotra
- Johns Hopkins Medicine, Johns Hopkins Comprehensive Transplant Center, Baltimore, MD 21287, USA
| | - Priyanka Jethwani
- Methodist Transplant Institute, University of Tennessee Health Science Center, Knoxville, TN 37996, USA;
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Liu S, Zhang Y, Miao Q, Zhang X, Jiang X, Chang T, Li X. The Mediating Role of Self-Perceived Burden Between Social Support and Fear of Progression in Renal Transplant Recipients: A Multicenter Cross-Sectional Study. Psychol Res Behav Manag 2023; 16:3623-3633. [PMID: 37693331 PMCID: PMC10488562 DOI: 10.2147/prbm.s424844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/17/2023] [Indexed: 09/12/2023] Open
Abstract
Purpose To explore the mechanism of social support and fear of progression (FoP) in renal transplant recipients (RTRs) and the self-perceived burden that acts as a mediator between social support and FoP. Patients and Methods Sociodemographic and clinical characteristics, the Social Support Rating Scale (SSRS), the Self-Perceived Burden Scale (SPBS), and the Fear of Progression-Questionnaire-Short Form (FoP-Q-SF) were used. Structural equation modeling (SEM) was used to examine the mediating role of self-perceived burden. Results Our results showed that social support was negatively related to the self-perceived burden (r = -0.28, p < 0.001) and FoP (r = -0.37, p < 0.001). Moreover, we determined that self-perceived burden was positively related to FoP (r = 0.58, p < 0.001) and that the indirect effect of social support on FoP via self-perceived burden was significant (β = -0.172, 95% CI: -0.253, -0.097), and with a mediating effect value of 36.9%. Conclusion The FoP in RTRs is a concern. Higher social support and lower self-perceived burden can reduce the risk of FoP. Healthcare professionals (HCPs) should assist RTRs in correctly evaluating an individual's social support system, helping them optimize social support to reduce the self-perceived burden and the development of FoP.
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Affiliation(s)
- Sainan Liu
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Ying Zhang
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Qi Miao
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Xu Zhang
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Xiaoyu Jiang
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Tiantian Chang
- The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
| | - Xiaofei Li
- Transplantation and Hepatobiliary Department, The First Affiliated Hospital of China Medical University, Shenyang, 110000, People’s Republic of China
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Chotai PN, Logan A, Subramanian J, Singh P, Kaur M, Brock G, Limkemann A, Schenk A, Alebrahim M, Rajab A, Washburn K, Singh N. Outcomes After Deceased Donor Kidney Transplantation Using Kidney Allografts With Marginal Perfusion Parameters. Transplant Proc 2023; 55:1561-1567. [PMID: 37393170 DOI: 10.1016/j.transproceed.2023.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/20/2023] [Accepted: 05/16/2023] [Indexed: 07/03/2023]
Abstract
BACKGROUND This study examines outcomes of deceased donor kidney transplantation (DDKT) in recipients of kidney allografts with marginal perfusion parameters. METHODS Allografts with marginal perfusion parameters (resistance index [RI] >0.4 and pump flow rate [F] <70 mL/min; MP group) were compared with those with good parameters (RI <0.4 and F >70 mL/min; GP group) for DDKT recipients between January 1996 and November 2017 after hypothermic pulsatile perfusion. Demographics, creatinine, cold ischemia times (CIT), delayed graft function (DGF), and recipient glomerular filtration rate at pre- and post-transplant were noted. The primary outcome was graft survival post-transplant. RESULTS In the MP (n = 31) versus GP (n = 1281) group, the median recipient was aged 57 years versus 51 years; the median donor was aged 47 versus 37 years; terminal creatinine was 0.9 versus 0.9 mg/dL; CIT was 10.2 versus 13 hours, and the RI and flow were 0.46 and 60 mL/min versus 0.21 and 120 mL/min. The DGF rate was 19% (MP) versus 8% (GP). The graft survival in the MP versus GP group was 81% versus 90% (1 year), 65% versus 79% (3 years), 65% versus 73% (4 years), and 45% versus 68% (5 years). CONCLUSION Carefully selected kidney allografts after comprehensive donor and recipient evaluation may allow for the use of these routinely discarded kidneys with marginal perfusion parameters.
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Affiliation(s)
- Pranit N Chotai
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - April Logan
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Jayanthan Subramanian
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Priyamvada Singh
- Division of Nephrology, The Comprehensive Transplant Center, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Manjit Kaur
- Division of Nephrology, The Comprehensive Transplant Center, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Guy Brock
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Ashley Limkemann
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Austin Schenk
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Musab Alebrahim
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Amer Rajab
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Kenneth Washburn
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Navdeep Singh
- Division of Abdominal Transplantation, The Comprehensive Transplant Center, Department of General Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio.
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