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Mathew J, Tumin D, Beng-Ongey H. Predictors of academic delay post-pediatric kidney transplant in the USA. Pediatr Nephrol 2024; 39:3309-3316. [PMID: 38963554 DOI: 10.1007/s00467-024-06445-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/02/2024] [Accepted: 06/17/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Pediatric patients with kidney failure often experience cognitive delays. However, academic delay (being more than one grade level below age-appropriate grade, or in special education) after pediatric kidney transplantation (KTx) has not been explored. We sought to identify patient characteristics associated with a higher risk of academic delay 1 year post-KTx. METHODS We used the United Network for Organ Sharing (UNOS) database to identify children aged 6-17 years who received a primary KTx between 2014 and 2021 and had a functioning graft 1 year after KTx. The primary outcome was the patient's academic progress at 1 year post-transplant. The secondary outcome was change in academic progress between transplant and 1-year follow-up: onset of new delay, resolution of pre-existing delay, persistence of delay, or no delay at either timepoint. Binomial and multinomial mixed effects logistic regression models were used to predict each outcome based on patient characteristics. RESULTS The study included 2197 patients, of whom 14% demonstrated academic delay at 1 year post-KTx, 4% demonstrated a new onset of academic delay, 5% demonstrated a resolution of academic delay, and 10% demonstrated persistent academic delay. Patients undergoing transplantation at a younger age, receiving a deceased donor kidney, experiencing longer waitlist times, and undergoing KTx for vascular or other disease indications for KTx were more likely to experience academic delays, including new-onset academic delays. CONCLUSIONS Academic delays are frequently reported among pediatric KTx recipients. Additional academic support may help resolving or preventing academic delay for at-risk subgroups of children undergoing KTx.
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Affiliation(s)
- Joanna Mathew
- East Carolina University, E 5thSt, Greenville, NC, 27858, USA.
| | - Dmitry Tumin
- Department of Pediatrics, Brody School of Medicine at East, Carolina University, Greenville, NC, USA
- Department of Academic Affairs, Brody School of Medicine at East, Carolina University, Greenville, NC, USA
| | - Hostensia Beng-Ongey
- Department of Pediatrics, Brody School of Medicine at East, Carolina University, Greenville, NC, USA
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Zhu M, Farber A, King E, Alonso A, Kobzeva-Herzog A, Cooper J, Lotfollahzadeh S, Chitalia VC, Siracuse JJ. Early Kidney Transplantation or Conversion to Peritoneal Dialysis after First-Time Arteriovenous Access Creation. Ann Vasc Surg 2024; 108:57-64. [PMID: 38942372 DOI: 10.1016/j.avsg.2024.06.002] [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: 05/18/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 06/30/2024]
Abstract
BACKGROUND After autogenous arteriovenous (AV) access creation for end-stage renal disease, a majority of patients will continue on hemodialysis (HD), a minority will receive definitive treatment with kidney transplantation, and a subset of patients will convert to peritoneal dialysis (PD). Our goal was to identify patient factors associated with early transition from HD to either kidney transplantation or PD. METHODS This is a case-control study of all patients with first-time AV access creation in the Vascular Quality Initiative (2011-2022) who had long-term follow-up. Patients who remained on HD after AV access creation were the control group while patients who received early kidney transplant or who converted to PD were the 2 case groups. Relationship among demographics, comorbidities, neighborhood social disadvantage, and functional status as they relate to renal replacement therapy modality was assessed. RESULTS There were 19,782 patients included; the average age was 62 ± 15 years and 57% were male. During the follow-up period of a median 306 (71-403) days, 1.3% underwent a kidney transplantation and 2.3% underwent conversion to PD. On univariable analysis, rates of kidney transplantation or conversion to PD varied with race (P < 0.001), insurance status (P < 0.001), area deprivation index (ADI) quintile (P < 0.001), and several medical comorbidities. On multivariable analysis, impaired ambulation, current smoking, Medicaid or Medicare insurance, Black race, heart failure, body mass index, and older age were associated with decreased transplantation rates. Conversion to PD was associated with ADI Q5, Q4, and Q3. Decreased conversion to PD was associated with impaired ambulation, Hispanic ethnicity, Black race, former smoking, medication-controlled diabetes, and older age. CONCLUSIONS Decreased kidney transplantation was associated with Black race and noncommercial health insurance but not ADI quintile, suggesting disparities exist beyond community-level access to care. Early kidney transplantation conveyed a 3-year survival benefit compared with HD and PD, which had similar survival. Furthermore work is required to increase access to kidney transplantation and PD.
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Affiliation(s)
- Max Zhu
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Alik Farber
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Elizabeth King
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Andrea Alonso
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Anna Kobzeva-Herzog
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Jeffrey Cooper
- Division of Transplant Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Saran Lotfollahzadeh
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA; Division of Nephrology, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Vipul C Chitalia
- Division of Nephrology, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA
| | - Jeffrey J Siracuse
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, MA.
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Warli SM, Ginting AR, Firsty NN, Velaro AJ, Sembiring SC, Darlan DM, Tala ZZ. Redefining kidney transplantation procedure among adult lupus nephritis: Expedient review approach and meta-analysis from the last couple of decades. Arch Ital Urol Androl 2024; 96:12627. [PMID: 39356019 DOI: 10.4081/aiua.2024.12627] [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: 04/30/2024] [Accepted: 06/06/2024] [Indexed: 10/03/2024] Open
Abstract
BACKGROUND The actual prognostic impact of prior lupus nephritis (LN) diagnosis on end-stage kidney disease (ESKD) patients remains questionable, especially in relation to outcomes of kidney transplantation (KTx) We aim to determine the survival of the graft and recipient after the KTx procedure among patients with ESKD due to LN in comparison to non-LN. METHODS This meta-analysis included retrospective studies from the last two decades, focusing on the KTx's outcomes among ESKD due to LN in comparison to non-LN. We establish the graft/recipient survival rate at different follow-up intervals as the primary outcome, and acute graft rejection and pooled graft failure rate as secondary outcomes. All analyses were performed with the random-effect model (REM) and were presented as odd ratio (OR; within 95% confidence interval (CI)). The protocol of this study was registered in PROSPERO: CRD42023394310. RESULTS A total of 1,299 KTx (368 LN patients) from 10 studies with >10 years of follow-up were thoroughly reviewed. All checkpoints (at 1-, 5-, 10, and 15-year post-KTx) on graft survival rate demonstrated comparable outcomes in either LN or non-LN (e.g., at 10-year follow up (OR, 1.08 [0.40, 2.91]; p = 0.88). Similar findings at all checkpoints for recipient survival rate were also observed without statistically significant difference between LN and non-LN arm (e.g., at 10-year checkpoint; OR, 0.99 [0.68, 1.46]; p = 0.98). Both of our secondary analyses also presented insignificant differences (p = 0.70 and = 0.16, respectively). CONCLUSIONS Our findings suggested that prognosis of ESKD due to complicated LN is equal compared to ESKD associated with non-LN etiologies, suggesting the impact of LN as the inducing cause of ESKD on KTx outcome is relatively neglectable.
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Affiliation(s)
- Syah Mirsya Warli
- Department of Urology, Universitas Sumatera Utara Hospital, Universitas Sumatera Utara, Medan; Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara - Haji Adam Malik General Hospital, Medan.
| | - Andi Raga Ginting
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan.
| | | | | | - Stephani Clarissa Sembiring
- Sipirok Hospital, South Tapanuli Regency; Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan.
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Gu L, Gross AC, Kizilbash S. Multidisciplinary approach to optimizing long-term outcomes in pediatric kidney transplant recipients: multifaceted needs, risk assessment strategies, and potential interventions. Pediatr Nephrol 2024:10.1007/s00467-024-06519-x. [PMID: 39356298 DOI: 10.1007/s00467-024-06519-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/18/2024] [Accepted: 08/19/2024] [Indexed: 10/03/2024]
Abstract
The post-transplant course of pediatric kidney transplant recipients is marked by a myriad of challenges, encompassing medical complications, recurrent hospitalizations, physical and dietary restrictions, and mental health concerns such as depression, anxiety, and post-traumatic stress disorder. Moreover, pediatric recipients are at risk of neurodevelopmental impairment, which may result in neurocognitive deficits and pose significant psychosocial obstacles. Addressing these multifaceted demands necessitates a multidisciplinary approach to pediatric kidney transplant care. However, the existing literature on the effective implementation of such a model remains scarce. This review examines the psychosocial and neurodevelopmental challenges faced by pediatric kidney transplant recipients and their families, discussing their impact on long-term transplant outcomes. Furthermore, it provides insights into risk assessment strategies and potential interventions within a multidisciplinary framework, aiming to enhance patient care and optimize post-transplant outcomes.
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Affiliation(s)
- Lidan Gu
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Amy C Gross
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Sarah Kizilbash
- Division of Pediatric Nephrology, Department of Pediatrics, University of Minnesota Medical School, 2450 Riverside Ave, MB680, Minneapolis, MN, 55454, USA.
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Chadban S, Watt KD. When is it safe to transplant after cancer - adding data to the decision. Am J Transplant 2024:S1600-6135(24)00600-2. [PMID: 39343038 DOI: 10.1016/j.ajt.2024.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2024] [Accepted: 09/23/2024] [Indexed: 10/01/2024]
Affiliation(s)
- Steve Chadban
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia; Kidney Node, Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Australia.
| | - Kymberly D Watt
- Department of Medicine, Division of Gastroenterology/Hepatology, Mayo Clinic, Rochester MN 55905
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Engels EA, Mandal S, Corley DA, Blosser CD, Hart A, Lynch CF, Qiao B, Pawlish KS, Haber G, Yu KJ, Pfeiffer RM. Cure models, survival probabilities, and solid organ transplantation for patients with colorectal cancer. Am J Transplant 2024:S1600-6135(24)00527-6. [PMID: 39182612 DOI: 10.1016/j.ajt.2024.08.018] [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: 08/25/2023] [Revised: 08/15/2024] [Accepted: 08/19/2024] [Indexed: 08/27/2024]
Abstract
A previous cancer diagnosis can preclude patients from consideration for solid organ transplantation. Statistical models may improve candidate selection. We fitted statistical cure models and estimated 5-year cancer-specific survival (5yCSS) for colorectal cancer patients in the United States using registry data. The median cure probability at cancer diagnosis for patients in the general population was 0.67. Among 956 colorectal cancer patients who underwent solid organ transplantation, the median time since diagnosis was 6.3 years and the median 5yCSS at transplantation was 0.96. Patients with a 5yCSS below 0.90 had increased posttransplant cancer-specific mortality (hazard ratio 3.31, 95% CI 1.52-7.21). Compared with recently published guidelines, our models suggested shorter wait times for some groups of colorectal cancer patients (eg, stage IIA cancers) and longer wait times for others (stages IIB, IIIB, IIIC, IV). In conclusion, colorectal cancer patients undergoing solid organ transplantation had excellent prognoses, reflecting selection incorporating existing guidelines and clinical judgment. Nonetheless, 5yCSS probabilities estimated from cure models offer additional prognostic information for patients considered for transplantation and identify situations where current guidelines might be revised. We developed a web-based tool for clinicians to calculate 5yCSS probabilities for use in transplant evaluation for individual colorectal cancer patients (https://dceg.cancer.gov/tools/risk-assessment/calculator-of-colorectal-cancer-survival-probability).
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Affiliation(s)
- Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA.
| | - Soutrik Mandal
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA; Department of Population Health, New York University, New York, New York, USA
| | - Douglas A Corley
- Division of Research, Kaiser Permanente, Oakland, California, USA
| | - Christopher D Blosser
- Department of Medicine, University of Washington and Seattle Children's Hospital, Seattle, Washington, USA
| | - Allyson Hart
- Scientific Registry of Transplant Recipients and Department of Medicine, Hennepin Healthcare, Minneapolis, Minnesota, USA
| | - Charles F Lynch
- Department of Epidemiology, The University of Iowa, Iowa City, Iowa, USA
| | - Baozhen Qiao
- Bureau of Cancer Epidemiology, New York State Department of Health, Albany, New York, USA
| | - Karen S Pawlish
- Cancer Epidemiology Services, New Jersey Department of Health, Trenton, New Jersey, USA
| | - Gregory Haber
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - Kelly J Yu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Ruth M Pfeiffer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
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Françot M, Mesnard B, Kerleau C, Chelghaf I, de Vergie S, Perrouin Verbe MA, Rigaud J, Karam G, Supiot S, Rio E, Blancho G, Giral M, Branchereau J. Kidney transplantation after pelvic radiotherapy: Increased morbidity? THE FRENCH JOURNAL OF UROLOGY 2024; 34:102667. [PMID: 38849036 DOI: 10.1016/j.fjurol.2024.102667] [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: 09/05/2023] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024]
Abstract
INTRODUCTION The impact of pelvic irradiation on kidney transplant surgery is still unclear. The main objective of our study is to evaluate the feasibility and the safety of renal transplantation following pelvic radiotherapy. METHODS We collected characteristics and kidney transplant data from patients with a history of pelvic cancer treated with pelvic irradiation between 2005 and 2021. These data were collected via the prospective information system "Computerized Data Validated in Transplantation" (DIVAT) and medical records. We carried out a comparative study with a non-irradiated matched control group to compare the data of intraoperative surgeries, complications reported postoperatively as well as survival of the graft and the patient. Patients were matched on age, sex, side of graft implantation, and graft rank. RESULTS Twenty-four patients were collected with an average age of 65, 18 patients were treated for prostatic adenocarcinoma, 4 for gynecological cancer and 2 testicular cancers. Twenty-one patients were treated by radiotherapy, 3 by brachytherapy. Eight patients had a target dose on the iliac lymph nodes. The comparative study showed a significant difference in operative difficulty (n=15 versus n=1, P<0.01), operative duration (190min versus 149min, P=0.005), occurrence of lymphocele (P=0.041). Urinary anastomosis surgical techniques were different, 83.3% of control patients had an uretero-vesical anastomosis against 58.3% of patients with a history of irradiation (P=0.057) and about 29% of irradiated patients had an uretero-ureteral anastomosis. There was no other significant difference in per and postoperative criteria or survival. DISCUSSION A history of pelvic irradiation significantly increases the technical complexity of kidney transplantation without impacting safety and kidney graft survival. A history of pelvic irradiation should not be a contraindication to kidney transplant. LEVEL OF EVIDENCE: 3
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Affiliation(s)
- Marc Françot
- Department of Urology, Nantes University Hospital, Nantes, France.
| | - Benoit Mesnard
- Department of Urology, Nantes University Hospital, Nantes, France
| | - Clarisse Kerleau
- Center for Research in Transplantation and Translational Immunology, Nantes University Hospital, Nantes, France
| | - Ismael Chelghaf
- Department of Urology, Nantes University Hospital, Nantes, France
| | | | | | - Jérome Rigaud
- Department of Urology, Nantes University Hospital, Nantes, France
| | - Georges Karam
- Department of Urology, Nantes University Hospital, Nantes, France
| | - Stéphane Supiot
- Department of Radiotherapy, West Cancer Institute, Nantes University Hospital, Saint-Herblain, France
| | - Emmanuel Rio
- Department of Radiotherapy, West Cancer Institute, Nantes University Hospital, Saint-Herblain, France
| | - Gilles Blancho
- Department of Nephrology and Immunology, Nantes University Hospital, Nantes, France
| | - Magali Giral
- Department of Nephrology and Immunology, Nantes University Hospital, Nantes, France
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Benes B, Langewisch ED, Westphal SG. Kidney Transplant Candidacy: Addressing Common Medical and Psychosocial Barriers to Transplant. ADVANCES IN KIDNEY DISEASE AND HEALTH 2024; 31:387-399. [PMID: 39232609 DOI: 10.1053/j.akdh.2024.03.002] [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: 01/10/2024] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 09/06/2024]
Abstract
Improving access to kidney transplants remains a priority for the transplant community. However, many medical, psychosocial, geographic, and socioeconomic barriers exist that prevent or delay transplantation for candidates with certain conditions. There is a lack of consensus regarding how to best approach many of these issues and barriers, leading to heterogeneity in transplant centers' management and acceptance practices for a variety of pretransplant candidate issues. In this review, we address several of the more common contemporary patient medical and psychosocial barriers frequently encountered by transplant programs. The barriers discussed here include kidney transplant candidates with obesity, older age, prior malignancy, cardiovascular disease, history of nonadherence, and cannabis use. Improving understanding of how to best address these specific issues can empower referring providers, transplant programs, and patients to address these issues as necessary to progress toward eventual successful transplantation.
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Affiliation(s)
- Brian Benes
- Nephrology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Eric D Langewisch
- Nephrology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Scott G Westphal
- Nephrology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE.
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Tuttle M, Sarnak MJ, Navaneethan SD. Therapeutic approaches for pulmonary hypertension in patients with chronic kidney disease. Curr Opin Nephrol Hypertens 2024; 33:494-502. [PMID: 38899951 PMCID: PMC11290985 DOI: 10.1097/mnh.0000000000001008] [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: 06/21/2024]
Abstract
PURPOSE OF REVIEW Pulmonary hypertension is a common comorbidity in patients with chronic kidney disease (CKD), but therapeutic options are limited. We discuss the epidemiology of pulmonary hypertension in patients with CKD and review therapies for pulmonary hypertension with a focus on emerging treatments for pulmonary arterial hypertension (PAH). RECENT FINDINGS The definition of pulmonary hypertension has been updated to a lower threshold of mean pulmonary artery pressures of more than 20 mmHg, potentially leading to more patients with CKD to qualify for the diagnosis of pulmonary hypertension. Endothelin receptor antagonists, a class of medications, which demonstrated efficacy in patients with PAH, have been shown to slow progression of CKD, but their efficacy in lowering pulmonary artery pressures and their effects on reducing cardiovascular mortality in this population remains unproven. Sotatercept, a novel activin signaling inhibitor, which was previously studied in dialysis patients has been shown to increase exercise capacity in patients with PAH. These studies may lead to new specific therapies for pulmonary hypertension in patients with CKD. SUMMARY Pulmonary hypertension is common in patients with CKD. Although our understanding of factors leading to pulmonary hypertension in this population have evolved, evidence supporting disease-specific therapy in CKD is limited arguing for larger, long-term studies.
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MESH Headings
- Humans
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/physiopathology
- Renal Insufficiency, Chronic/epidemiology
- Renal Insufficiency, Chronic/diagnosis
- Renal Insufficiency, Chronic/drug therapy
- Hypertension, Pulmonary/drug therapy
- Hypertension, Pulmonary/diagnosis
- Hypertension, Pulmonary/epidemiology
- Hypertension, Pulmonary/physiopathology
- Hypertension, Pulmonary/therapy
- Antihypertensive Agents/therapeutic use
- Endothelin Receptor Antagonists/therapeutic use
- Animals
- Treatment Outcome
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Affiliation(s)
- Marcelle Tuttle
- Tufts Medical Center, Nephrology Division, Department of Medicine, Boston, MA
- Tufts Clinical and Translational Science Institute, Tufts University, Boston, MA
| | - Mark J. Sarnak
- Tufts Medical Center, Nephrology Division, Department of Medicine, Boston, MA
| | - Sankar D. Navaneethan
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX
- Section of Nephrology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
- Veterans Affairs Health Services Research and Development Center for Innovations in Quality, Effectiveness and Safety, Houston, TX
- Institute of Clinical and Translational Research Baylor College of Medicine, Houston, TX
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Maclay LM, Yu M, Amaral S, Adler JT, Sandoval PR, Ratner LE, Schold JD, Mohan S, Husain SA. Disparities in Access to Timely Waitlisting Among Pediatric Kidney Transplant Candidates. Pediatrics 2024; 154:e2024065934. [PMID: 39086359 PMCID: PMC11350102 DOI: 10.1542/peds.2024-065934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Kidney transplantation with minimal or no dialysis exposure provides optimal outcomes for children with end-stage kidney disease. We sought to understand disparities in timely access to transplant waitlisting. METHODS We conducted a retrospective, registry-based cohort study of candidates ages 3 to 17 added to the US kidney transplant waitlist 2015 to 2019. We defined "preemptive waitlisting" as waitlist addition before receiving dialysis and compared demographics of candidates based on preemptive status. We used competing risk regression to determine the association between preemptive waitlisting and transplantation. We then identified waitlist additions age >18 who initiated dialysis as children, thereby missing pediatric allocation prioritization, and evaluated the association between waitlisting with pediatric prioritization and transplantation. RESULTS Among 4506 pediatric candidates, 48% were waitlisted preemptively. Female sex, Hispanic ethnicity, Black race, and public insurance were associated with lower adjusted relative risk of preemptive waitlisting. Preemptive listing was not associated with time from waitlist activation to transplantation (adjusted hazard ratio 0.94, 95% confidence interval 0.87-1.02). Among transplant recipients waitlisted preemptively, 68% had no pretransplant dialysis, whereas recipients listed nonpreemptively had median 1.6 years of dialysis at transplant. Among 415 candidates initiating dialysis as children but waitlisted as adults, transplant rate was lower versus nonpreemptive pediatric candidates after waitlist activation (adjusted hazard ratio 0.54, 95% confidence interval 0.44-0.66). CONCLUSIONS Disparities in timely waitlisting are associated with differences in pretransplant dialysis exposure despite no difference in time to transplant after waitlist activation. Young adults who experience delays may miss pediatric prioritization, highlighting an area for policy intervention.
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Affiliation(s)
- Lindsey M. Maclay
- Departments of Medicine, Division of Nephrology
- Columbia University Renal Epidemiology Group, New York, New York
| | - Miko Yu
- Departments of Medicine, Division of Nephrology
- Columbia University Renal Epidemiology Group, New York, New York
| | - Sandra Amaral
- Division of Nephrology, Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Joel T. Adler
- Department of Surgery and Perioperative Care, Dell Medical School, University of Texas at Austin, Austin, Texas
| | - P. Rodrigo Sandoval
- Surgery, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | - Lloyd E. Ratner
- Surgery, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | - 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
- Departments of Medicine, Division of Nephrology
- Columbia University Renal Epidemiology Group, New York, New York
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Syed Ali Husain
- Departments of Medicine, Division of Nephrology
- Columbia University Renal Epidemiology Group, New York, New York
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Laowalert S, Naitook N, Boonnim K, Prungrit U, Aekkachaipitak N, Lamjantuek P, Liwlompaisan W, Khunprakant R, Techawathanawanna N, Mavichak V, Udomkarnjananun S. Report on post-transplantation cancer in southeast Asia from the Thai kidney transplantation cohort. Sci Rep 2024; 14:20154. [PMID: 39215076 PMCID: PMC11364626 DOI: 10.1038/s41598-024-71041-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
Post-transplantation cancer is a significant cause of mortality among kidney transplant recipients (KTR). The incidence of post-transplantation cancer varies based on geographic region and ethnicity. However, data on KTR from South East Asia, where characteristics differ from other parts of Asia, is lacking. We conducted a retrospective cohort study at a transplant center in Thailand to investigate the incidence of post-transplantation cancer and mortality rates. Factors associated with post-transplantation cancer and patient outcomes were analyzed using competing-risks regression. The study included 1156 KTR with a post-transplant follow-up duration of 5.1 (2.7-9.4) years. The age- and sex-adjusted incidence rate of post-transplant cancer was highest for urothelial cancer (6.9 per 1000 person-years), which also resulted in the highest standardized incidence ratio (SIR) of 42.5 when compared to the general population. Kidney cancer had the second-highest SIR of 24.4. Increasing age was the factor associated with an increased risk of post-transplant cancer (SHR 1.03; 95% CI 1.01-1.05). Human leukocyte antigen (HLA) DR mismatch was associated with a decreased risk of post-transplant cancer (SHR 0.72; 95% CI 0.52-0.98). Post-transplantation cancer was significantly associated with patient mortality (HR 3.16; 95% CI 2.21-4.52). Cancer significantly contributes to KTR mortality, and the risk profile for cancer development in Thai KTRs differs from that of Western and most Asian counterparts. Further research is essential to explore appropriate screening protocols for countries with high rates of urothelial and kidney cancer, including Thailand.
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Affiliation(s)
| | - Nattakan Naitook
- Kidney Transplant Institute, Praram 9 Hospital, Bangkok, Thailand
| | - Kesawan Boonnim
- Kidney Transplant Institute, Praram 9 Hospital, Bangkok, Thailand
| | - Uayporn Prungrit
- Kidney Transplant Institute, Praram 9 Hospital, Bangkok, Thailand
| | | | | | | | | | | | - Viroon Mavichak
- Kidney Transplant Institute, Praram 9 Hospital, Bangkok, Thailand
| | - Suwasin Udomkarnjananun
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, 1873, Rama 4 Road, Pathumwan, 10330, Bangkok, Thailand.
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12
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Bloemendal NT, Prakken NHJ, Gareb B, Benjamens S, Sanders JSF, Slart RHJA, Pol RA. Prognostic value of single photon emission computed tomography myocardial perfusion imaging for the prediction of MACE in pre- kidney transplant recipients: A systematic review and meta-analysis. Transplant Rev (Orlando) 2024; 38:100879. [PMID: 39236547 DOI: 10.1016/j.trre.2024.100879] [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: 07/15/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 09/07/2024]
Abstract
BACKGROUND Kidney transplantation provides substantial benefits in extending survival and improving quality of life for patients with end-stage renal disease. The incidence of major adverse cardiac events (MACE) increases with a decline of kidney function in patients with chronic kidney disease. After kidney transplantation, the incidence of MACE remains high. The objective of this study was to assess the prognostic significance of pre-transplant single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) in kidney transplant recipients. METHODS A systematic literature search was performed between January 1st 2015 and March 26th 2024 in PubMed, EMBASE, Web of Science and The Cochrane Library to identify the prognostic value of SPECT MPI for developing MACE (primary outcome) and mortality (secondary outcome) in kidney transplant recipients (PROSPERO CRD42020188610). Risk of bias was assessed. Meta-analyses and subgroup analyses were performed using random-effects models. RESULTS Six studies comprising 2090 SPECT MPI scans were included. Abnormal SPECT MPI scans were associated with an increased risk of MACE post-transplantation (HR 1.62, 95% CI 1.27-2.06, p < 0.001). Subgroup analyses showed consistent findings across various patient populations and methodological differences. Sensitivity analyses supported the robustness of our findings. CONCLUSIONS Current evidence showed that pre-transplant SPECT MPI has significant prognostic value in identifying kidney transplant candidates at risk for MACE post-transplantation. Integrating SPECT MPI into preoperative assessments might enhance risk stratification and guide clinical decision-making. Prospective studies are needed to refine risk prediction models.
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Affiliation(s)
- Niels T Bloemendal
- Department of Surgery, Division of Organ Transplantation, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Niek H J Prakken
- Medical Imaging Centre, Department of Radiology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Barzi Gareb
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Stan Benjamens
- Department of Surgery, Ikazia Hospital, Rotterdam, the Netherlands
| | - Jan Stephan F Sanders
- Department of internal medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Riemer H J A Slart
- Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, Enschede, the Netherlands; Medical Imaging Centre, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Robert A Pol
- Department of Surgery, Division of Organ Transplantation, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands.
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13
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Li Y, Chen T, Zhang Z, Fan Y, Lin T, Chen J, Song T. Sarcopenic obesity is associated with adverse outcomes after kidney transplantation: a retrospective cohort study. Int Urol Nephrol 2024; 56:2565-2575. [PMID: 38431534 DOI: 10.1007/s11255-024-03982-1] [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: 01/24/2024] [Accepted: 02/12/2024] [Indexed: 03/05/2024]
Abstract
PURPOSE Sarcopenia was found to be a poor prognostic factor in kidney transplant recipients, but the role of sarcopenia obesity remains unclear. This study aimed to explore the effect of sarcopenic obesity on kidney transplantation. METHODS A retrospective analysis was performed on kidney transplant recipients between 2015 and 2019. Pretransplant CT scans were utilized to assess sarcopenia and visceral obesity. Based on the presence or absence of sarcopenia and visceral obesity, the recipients were classified into four distinct groups. RESULTS The recipients were categorized into four groups based on their characteristics: the nonsarcopenic nonobesity group (n = 493, 49.85%), the nonsarcopenic obesity group (n = 248, 25.08%), the sarcopenic nonobesity group (n = 188, 19.01%), and the sarcopenic obesity group (n = 60, 6.07%). Multivariate analysis, identified sarcopenic obesity was as an independent risk factor for mortality following kidney transplantation (adjusted hazard ratio, 5.861; 95% confidence interval [CI]: 1.627-21.108; P = 0.007). Additionally, sarcopenic obesity was associated with an increased risk of delayed graft function (adjusted odds ratio [aOR], 3.342; 95% CI 1.421-7.745; P = 0.005), perioperative incision infection (aOR, 9.654; 95% CI 1.572-60.648; P = 0.011), perioperative pulmonary infection (aOR, 2.557; 95% CI 1.208-5.215; P = 0.011), and readmission within 3 months (aOR, 2.100; 95% CI 1.051-4.017; P = 0.029). While sarcopenic obesity was found to be associated with impaired graft renal function, it did not show a significant correlation with death-censored graft survival or quality of life. CONCLUSION The presence of sarcopenic obesity prior to kidney transplantation represents an independent risk factor for mortality, and it is also linked to a range of unfavorable outcomes.
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Affiliation(s)
- Yue Li
- Department of Urology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China
- Transplant Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Tingyu Chen
- Department of Radiology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China
| | - Zhen Zhang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China
| | - Yu Fan
- Department of Urology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China
- Transplant Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Tao Lin
- Department of Urology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China
- Transplant Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Jie Chen
- Department of Radiology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China.
| | - Turun Song
- Department of Urology, West China Hospital, Sichuan University, 37# Guoxue Alley, Chengdu, 610041, Sichuan, People's Republic of China.
- Transplant Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.
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14
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de Medeiros Oliveira LCL, Martins RR, de Oliveira RB, da Nóbrega ÍMF, de Medeiros Batista L, Moreira FSM, de Andrade CC, Tavares RPM, de Vasconcelos AL, Oliveira AG. Nonadherence to Immunosuppressant Therapy of Kidney Transplant Candidate Patients: External Validation of the KATITA-25 Scale. Transplantation 2024; 108:1812-1820. [PMID: 38548683 DOI: 10.1097/tp.0000000000004994] [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: 07/24/2024]
Abstract
BACKGROUND The self-administered Kidney AlloTransplant Immunosuppressive Therapy Adherence (KATITA-25) questionnaire is a multidimensional scale for use in the pretransplant setting that evaluates the predisposition to nonadherence of patients who are candidates to kidney transplant. The scale has shown adequate internal consistency and test-retest reliability. This study presents the results of an external validation study of the KATITA-25 scale. METHODS Patients >18 y old scheduled for kidney transplant were included in this multicenter study. The KATITA-25 scale was administered before surgery and then at 3-mo posttransplantation for evaluation of scale sensitivity to change. At this time, 2 validated medication adherence scales were applied for assessment of concurrent validity. For evaluation of predictive validity, nonadherence to immunosuppressive medication was assessed at 6 and 12 mo after transplantation by 3 independent methods: patient self-report of nonadherence using the Morisky-Green-Levine Medication Assessment Questionnaire scale, serum trough levels of immunosuppressants, and pharmacy refills. RESULTS Three twenty-two patients were available for evaluation of concurrent validity and 311 patients of predictive validity. After kidney transplant, the median KATITA-25 score decreased from 20 to 8 ( P < 0.001), demonstrating scale sensitivity to change, and the KATITA-25 score showed correlation with the Basel Assessment of Adherence to Immunosuppressive Medication Scale score (Spearman's ρ 0.18, P = 0.002) and the Cuestionario para la Evaluación de la Adhesión al Tratamiento Antiretroviral scores (ρ -0.17, P = 0.002), confirming concurrent validity. The nonadherence rate was 57.6%. The scale predictive validity was demonstrated by the area under the receiver operating characteristics curve (0.68), sensitivity (59.8%), specificity (68.2%), and positive predictive value (71.8%). CONCLUSIONS This external validation study of KATITA-25 scale provided evidence of sensitivity to change, and structural, criterion, and predictive validity.
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Affiliation(s)
- Luana Cristina Lins de Medeiros Oliveira
- Graduate Program in Pharmaceutical Sciences, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
- Clinical Pharmacy Unit, Onofre Lopes University Hospital, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | - Rand Randall Martins
- Graduate Program in Pharmaceutical Sciences, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
- Department of Pharmacy, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | - Renata Borges de Oliveira
- Department of Pharmacy, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | - Ítala Morgânia Farias da Nóbrega
- Faculdade Pernambucana de Saúde, Recife-PE, Brazil
- Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife-PE, Brazil
| | | | | | | | | | | | - Antonio Gouveia Oliveira
- Graduate Program in Pharmaceutical Sciences, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
- Department of Pharmacy, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
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15
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Woods JE, Snelson A, Kok J, Leger MA, Wei J, Hung J, Rio R, Medara S, Prasad S, Ganesh K, Kerr PG, Polkinghorne KR. Safety and efficacy of very low calorie diet in patients receiving haemodialysis therapy. Clin Kidney J 2024; 17:sfae217. [PMID: 39139183 PMCID: PMC11320592 DOI: 10.1093/ckj/sfae217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Indexed: 08/15/2024] Open
Abstract
Background Very low calorie diets (VLCDs) are an obesity treatment option in the general population, but their efficacy and safety in patients on haemodialysis (HD) is unknown. Methods Prospective single arm study of VLCD in haemodialysis patients. All participants received 2.5-3.3 MJ/day for 12 weeks. Weekly assessment of VLCD, pre- and post-dialysis weight, inter-dialytic weight gain, and blood electrolytes occurred for the first 4 weeks, then fortnightly for another 8 weeks. Linear mixed models compared the change in weight over time as well as biochemical outcomes including potassium. Results Twenty-two participants [nine home HD (HHD) and 13 satellite HD (SHD)] enrolled with 19 completing the 12-week intervention. Mean post-dialysis weight declined from 121.1 kg at baseline to 109.9 at week 12 resulting in average decline of 0.88 kg per week (95% C.I. 0.71, 1.05, P < .001) with 12-week mean percentage weight loss9.3% (SD 3.5). Mean post-dialysis body mass index declined from 40.9 kg/m2 at baseline to 37.1 kg/m2 at week 12 (95% C.I. 0.25, 0.35, P < .001). Serum potassium rose from week 1 to 3, stabilized during weeks 4 to 6, and fell from week 8, returning near baseline by week 12. Six of the nine (66.6%) HHD participants and seven of the 13 (70%) SHD participants had at least one episode of hyperkalaemia (K > 6 mmol/l). There were no clinical changes in serum sodium, corrected calcium, or phosphate levels during the study. Conclusion VLCD with dietitian supervision was effective in producing significant weight reduction, with an acceptable safety profile in patients treated with haemodialysis.
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Affiliation(s)
- Julie E Woods
- Department of Nutrition and Dietetics, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Anne Snelson
- Department of Nutrition and Dietetics, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Joanne Kok
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Melinda A Leger
- Department of Nutrition and Dietetics, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Jenny Wei
- Department of Nutrition and Dietetics, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Jessica Hung
- Department of Nutrition and Dietetics, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Ruth Rio
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Sujatha Medara
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Seema Prasad
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Kalaiselvi Ganesh
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
| | - Peter G Kerr
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
- Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Kevan R Polkinghorne
- Department of Nephrology, Monash Medical Centre, Monash Health, Melbourne, Victoria, Australia
- Department of Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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16
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Wang C, Garg AX, Luo B, Kim SJ, Knoll G, Yohanna S, Treleaven D, McKenzie S, Ip J, Cooper R, Elliott L, Naylor KL. Defining pre-emptive living kidney donor transplantation as a quality indicator. Am J Transplant 2024; 24:1445-1455. [PMID: 38395149 DOI: 10.1016/j.ajt.2024.02.017] [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: 10/03/2023] [Revised: 01/31/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024]
Abstract
Quality indicators in kidney transplants are needed to identify care gaps and improve access to transplants. We used linked administrative health care databases to examine multiple ways of defining pre-emptive living donor kidney transplants, including different patient cohorts and censoring definitions. We included adults from Ontario, Canada with advanced chronic kidney disease between January 1, 2013, to December 31, 2018. We created 4 unique incident patient cohorts, varying the eligibility by the risk of progression to kidney failure and whether individuals had a recorded contraindication to kidney transplant (eg, home oxygen use). We explored the effect of 4 censoring event definitions. Across the 4 cohorts, size varied substantially from 20 663 to 9598 patients, with the largest reduction (a 43% reduction) occurring when we excluded patients with ≥1 recorded contraindication to kidney transplantation. The incidence rate (per 100 person-years) of pre-emptive living donor kidney transplant varied across cohorts from 1.02 (95% CI: 0.91-1.14) for our most inclusive cohort to 2.21 (95% CI: 1.96-2.49) for the most restrictive cohort. Our methods can serve as a framework for developing other quality indicators in kidney transplantation and monitoring and improving access to pre-emptive living donor kidney transplants in health care systems.
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Affiliation(s)
- Carol Wang
- Division of Nephrology, Western University, London, Ontario, Canada.
| | - Amit X Garg
- Division of Nephrology, Western University, London, Ontario, Canada; ICES, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada; Lawson Health Research Institute and London Health Sciences Centre, London, Ontario, Canada
| | - Bin Luo
- ICES, Ontario, Canada; Lawson Health Research Institute and London Health Sciences Centre, London, Ontario, Canada
| | - S Joseph Kim
- Division of Nephrology and the Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Gregory Knoll
- University of Ottawa, Department of Medicine (Nephrology) and the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Seychelle Yohanna
- Division of Nephrology, McMaster University, Hamilton, Ontario, Canada
| | - Darin Treleaven
- Division of Nephrology, McMaster University, Hamilton, Ontario, Canada
| | | | - Jane Ip
- Ontario Renal Network, Ontario Health, Ontario, Canada
| | - Rebecca Cooper
- Ontario Renal Network, Ontario Health, and Trillium Gift of Life Network, Ontario Health, Canada
| | - Lori Elliott
- Ontario Renal Network, Ontario Health, Ontario, Canada
| | - Kyla L Naylor
- ICES, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada; Lawson Health Research Institute and London Health Sciences Centre, London, Ontario, Canada
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17
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Koehler FC, Späth MR, Meyer AM, Müller RU. Fueling the success of transplantation through nutrition: recent insights into nutritional interventions, their interplay with gut microbiota and cellular mechanisms. Curr Opin Organ Transplant 2024; 29:284-293. [PMID: 38861189 DOI: 10.1097/mot.0000000000001159] [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: 06/12/2024]
Abstract
PURPOSE OF REVIEW The role of nutrition in organ health including solid organ transplantation is broadly accepted, but robust data on nutritional regimens remains scarce calling for further investigation of specific dietary approaches at the different stages of organ transplantation. This review gives an update on the latest insights into nutritional interventions highlighting the potential of specific dietary regimens prior to transplantation aiming for organ protection and the interplay between dietary intake and gut microbiota. RECENT FINDINGS Nutrition holds the potential to optimize patients' health prior to and after surgery, it may enhance patients' ability to cope with the procedure-associated stress and it may accelerate their recovery from surgery. Nutrition helps to reduce morbidity and mortality in addition to preserve graft function. In the case of living organ donation, dietary preconditioning strategies promise novel approaches to limit ischemic organ damage during transplantation and to identify the underlying molecular mechanisms of diet-induced organ protection. Functioning gut microbiota are required to limit systemic inflammation and to generate protective metabolites such as short-chain fatty acids or hydrogen sulfide. SUMMARY Nutritional intervention is a promising therapeutic concept including the pre- and rehabilitation stage in order to improve the recipients' outcome after solid organ transplantation.
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Affiliation(s)
- Felix C Koehler
- Department II of Internal Medicine and Center for Molecular Medicine Cologne
- CECAD Research Center, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Martin R Späth
- Department II of Internal Medicine and Center for Molecular Medicine Cologne
- CECAD Research Center, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Anna M Meyer
- Department II of Internal Medicine and Center for Molecular Medicine Cologne
| | - Roman-Ulrich Müller
- Department II of Internal Medicine and Center for Molecular Medicine Cologne
- CECAD Research Center, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
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18
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Han Z, Yi X, Li J, Tang Y, Liao D, Zhang T, Ai J. Insights into ChatGPT application in renal transplantation. Int J Surg 2024; 110:5204-5206. [PMID: 38701499 PMCID: PMC11326017 DOI: 10.1097/js9.0000000000001495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 04/14/2024] [Indexed: 05/05/2024]
Affiliation(s)
- Zeyu Han
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China
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19
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Sancho C, Affdal A, Ballesteros Gallego FA, Malo MF, Cochran-Mavrikakis SL, Cardinal H, Gill JS, Fortin MC. The Use of Kidneys With Lower Longevity From Deceased Donors to Improve Access to Preemptive Renal Transplantation for Elderly Patients: A Qualitative Study. Can J Kidney Health Dis 2024; 11:20543581241267165. [PMID: 39091638 PMCID: PMC11292676 DOI: 10.1177/20543581241267165] [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: 02/15/2024] [Accepted: 06/04/2024] [Indexed: 08/04/2024] Open
Abstract
Background There is a gap between the number of patients waiting for a transplant and the number of kidneys available. Some deceased donor kidneys are currently nonutilized, as medical teams fear that they will experience suboptimal graft survival. However, these organs could provide an acceptable therapeutic option if they were allocated for preemptive kidney transplantation in elderly candidates. Objective This project aims to gather patients' perspectives on the allocation of kidneys with lower longevity for preemptive kidney transplantation in elderly patients. Design Individual interviews. Setting The Center hospitalier de l'Université de Montréal (CHUM) chronic kidney disease (CKD) clinic. Participants Patients aged between 64 and 75 years with CKD G4-5 ND, followed at the CHUM and who have not initiated dialysis yet. Methods Between March and July 2023, we conducted 14 individual interviews with patients aged between 64 and 75 years who had CKD G4-5 ND and were followed at the CHUM. The interviews were digitally recorded and transcribed. Thematic analysis was conducted. Results Most participants were in favor of using kidneys with lower longevity to increase their access to transplantation, improve their quality of life, enable accelerated transplantation, and avoid dialysis. Patients also wanted to be engaged in the decision-making process, underlining the importance of informed consent. Although the use of kidneys with lower longevity offers the hope of returning to "normal" life, some patients were concerned about the risk of reduced graft survival and the need for a subsequent kidney transplant. In these cases, patients were interested in using mitigation strategies, such as prioritization for kidney transplantation from standard donors in case of early graft loss associated with receiving kidneys with lower longevity. They also recommended the development of a separate waiting list for patients consenting to preemptive transplantation with kidneys with lower longevity. Limitations This study was conducted in only 1 nephrology clinic in the province of Quebec with French-speaking patients. Consequently, the results may not be generalizable to other populations, including ethnic minorities. Conclusion The use of kidneys with lower longevity for preemptive kidney transplantation appears to be an interesting option for elderly kidney transplant candidates. However, patient information and participation in the decision-making process are essential. Moreover, organ donation organizations and transplant programs should develop a separate waitlist for transplant candidates who have preconsented to receive organ offers of deceased donor kidneys with lower longevity. Trial registration Not registered.
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Affiliation(s)
- Carina Sancho
- Bioethics Program, École de santé publique de l’Université de Montréal, Québec, Canada
| | - Aliya Affdal
- Bioethics Program, École de santé publique de l’Université de Montréal, Québec, Canada
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Québec, Canada
| | | | - Marie-Françoise Malo
- Bioethics Program, École de santé publique de l’Université de Montréal, Québec, Canada
| | | | - Héloise Cardinal
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Québec, Canada
- Faculté de médecine de l’Université de Montréal, Québec, Canada
- Centre hospitalier de l’Université de Montréal, Québec, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
| | - John S. Gill
- Division of Nephrology, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Marie-Chantal Fortin
- Centre de recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Québec, Canada
- Faculté de médecine de l’Université de Montréal, Québec, Canada
- Centre hospitalier de l’Université de Montréal, Québec, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, AB, Canada
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20
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Puttarajappa CM, Smith KJ, Ahmed BH, Bernardi K, Lavenburg LM, Hoffman W, Molinari M. Economic evaluation of weight loss and transplantation strategies for kidney transplant candidates with obesity. Am J Transplant 2024:S1600-6135(24)00446-5. [PMID: 39084464 DOI: 10.1016/j.ajt.2024.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/11/2024] [Accepted: 07/20/2024] [Indexed: 08/02/2024]
Abstract
Novel antiobesity medications, particularly glucagon-like peptide-1 receptor agonists (GLP-1RAs), have expanded weight loss (WL) options for kidney transplantation (KT) candidates with obesity beyond lifestyle modifications and bariatric surgery. However, varying effectiveness, risk profiles, and costs make strategy choices challenging. To aid decision-making, we used a Markov model to examine the cost-effectiveness of different WL strategies over a 10-year horizon. A target WL of 15% of total body weight was used for the base case scenario, and we compared these strategies to a "liberal" KT strategy of transplanting candidates with obesity. Outcomes included costs (2023 US dollars), quality-adjusted life years, and incremental cost-effectiveness ratios. In analysis, a liberal KT strategy was favored over lifestyle modifications and GLP-1RAs. Among WL strategies, bariatric surgery was the most effective and cost the least, whereas lifestyle modification had the highest cumulative costs and was the least effective. Compared to liberal KT, bariatric surgery costs $45 859 per quality-adjusted life year gained. GLP-1RAs were favored over bariatric surgery only when drug costs were below $5000 per year (base cost $12 077). In conclusion, for KT candidates with obesity, a liberal KT strategy and bariatric surgery are preferred over lifestyle modifications alone and GLP-1RAs based on outcomes and cost-effectiveness.
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Affiliation(s)
- Chethan M Puttarajappa
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
| | - Kenneth J Smith
- Section of Decision Sciences, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Bestoun H Ahmed
- Department of Surgery, Bariatric and Minimally Invasive and Bariatric Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Karla Bernardi
- Department of Surgery, Bariatric and Minimally Invasive and Bariatric Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Linda-Marie Lavenburg
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - William Hoffman
- Transplant Nephrology, University of Pittsburgh Medical Center Harrisburg, Harrisburg, Pennsylvania, USA
| | - Michele Molinari
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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21
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Loga LII, Suharoschi R, Elec FI, Chiorean AD, Elec AD, Muntean AM, Suciu MD, Antal O, Toth AT, Lucaciu RL, Hangan AC, Drugan T, Matei HV, Dican L. Orchestrating the Impact of KIR/HLA Interactions on Kidney Transplant. Int J Mol Sci 2024; 25:8228. [PMID: 39125798 PMCID: PMC11311415 DOI: 10.3390/ijms25158228] [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: 06/15/2024] [Revised: 07/11/2024] [Accepted: 07/22/2024] [Indexed: 08/12/2024] Open
Abstract
This study examines the interplay between human leukocyte antigen (HLA) compatibility and killer-cell immunoglobulin-like receptor (KIR) genotypes in influencing kidney transplantation outcomes. Understanding these interactions is crucial for improving graft survival and minimizing rejection risks. We evaluated 84 kidney transplant recipients, dividing them into two groups based on post-transplant outcomes: there were 68 with stable graft function (SGF) and 16 who experienced chronic rejection (CR). Patients were selected based on specific inclusion criteria. HLA mismatches (Class I: HLA-A, -B; Class II: HLA-DR) and KIR genotypes were determined using standard genotyping techniques. Statistical analyses, including logistic regression, were performed to correlate these factors with transplant outcomes. Significant age differences were observed, with younger patients more likely to experience graft rejection, while no significant gender-based differences were noted. A significant correlation was found between Class II mismatches and increased rejection rates, highlighting the importance of HLA-DR compatibility. Further analysis revealed that certain inhibitory KIRs, such as KIR3DL1, were associated with favorable outcomes, suggesting a protective role against graft rejection. These findings were corroborated by evaluating serum creatinine levels over multiple years, serving as a biomarker for renal function post transplant. This study underscores the critical need for meticulous HLA matching and the consideration of KIR genotypes in pre-transplant evaluations to enhance graft survival and minimize rejection risks. Integrating these genetic factors into routine clinical assessments could significantly improve personalized transplant medicine strategies, ultimately enhancing patient outcomes. Further research is needed to explore the underlying mechanisms and validate these findings in larger, diverse populations.
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Affiliation(s)
- Luminița-Ioana Iancu Loga
- Department of Cellular and Molecular Biology, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (L.-I.I.L.); (A.D.C.); (H.V.M.)
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
| | - Ramona Suharoschi
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Florin Ioan Elec
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
- Department of Urology, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Alin Dan Chiorean
- Department of Cellular and Molecular Biology, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (L.-I.I.L.); (A.D.C.); (H.V.M.)
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
| | - Alina Daciana Elec
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
| | - Adriana Milena Muntean
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
| | - Mihai Domnuțiu Suciu
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
- Department of Urology, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Oana Antal
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
- Department of Anesthesiology, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Andreea Teodora Toth
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
| | - Roxana Liana Lucaciu
- Department of Pharmaceutical Biochemistry and Clinical Laboratory, Faculty of Pharmacy, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Adriana Corina Hangan
- Department of Inorganic Chemistry, Faculty of Pharmacy, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Tudor Drugan
- Department of Medical Informatics and Biostatistics, Faculty of Medicine,“Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Horea Vladi Matei
- Department of Cellular and Molecular Biology, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (L.-I.I.L.); (A.D.C.); (H.V.M.)
| | - Lucia Dican
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (A.D.E.); (A.M.M.); (M.D.S.); (O.A.); (A.T.T.); (L.D.)
- Department of Medical Biochemistry, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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Pedreira-Robles G, Morín-Fraile V, Bach-Pascual A, Graells-Sans A, Garcimartín P. «I can't imagine it without my nurse»: Experiences of people with chronic kidney disease in the evaluation process as kidney transplant candidates. Res Nurs Health 2024. [PMID: 38970457 DOI: 10.1002/nur.22414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 06/03/2024] [Accepted: 06/23/2024] [Indexed: 07/08/2024]
Abstract
This qualitative study aimed to explore the experiences of 11 adults with chronic kidney disease (CKD) undergoing evaluation for kidney transplant (KT) and examine the role played by the nurse in the process. Employing a descriptive phenomenology approach, semi-structured interviews were conducted between October 2022 and July 2023. Thematic analysis, facilitated by Atlas. ti software, revealed a systemic management diagram with "The candidate for kidney transplant and their reality" at the center, followed by "The process of chronic kidney disease and kidney transplantation," and concluding with the most distal category centered on "The kidney transplant access nurse." This organizational framework provided insights into the layers of relationships between emerging themes. The findings underscored the complexity and multidimensionality of the CKD and KT process, emphasizing the nurse's pivotal role as a guide and protector throughout the evaluation process for accessing kidney transplantation. The convergence of results with existing literature highlighted the need to address challenges such as lack of time, resources, and emotional support to enhance the quality of care. Recognizing the nurse's crucial importance in this process, the study emphasizes the significance of addressing these challenges to improve patient care and calls for attention to the nurse's role in guiding individuals through the intricate journey of CKD and kidney transplantation.
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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
- Social Determinants and Health Education Research Group (SDHEd), Hospital del Mar Institute for Medical Research (IMIM), Barcelona, Spain
- Nursing and Health PhD Program, University of Barcelona, Barcelona, Spain
| | - Victoria Morín-Fraile
- Department of Public Health, Mental Health, and Maternal and Child Health, Faculty of Nursing, University of Barcelona, Barcelona, Spain
| | - Anna Bach-Pascual
- Nephrology department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Ariadna Graells-Sans
- ESIMar (Mar Nursing School). Parc de Salut Mar, Universitat Pompeu Fabra affiliated, Barcelona, Spain
- Social Determinants and Health Education Research Group (SDHEd), Hospital del Mar Institute for Medical Research (IMIM), Barcelona, Spain
| | - Paloma Garcimartín
- Nursing department, Hospital del Mar, Parc de Salut Mar, Barcelona, 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
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23
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Yin S, Wu L, Liu C, Jia Z, Wu J, Zhang F, Wang X, Song T, Lin T. Risk for Donor-Derived Syphilis after Kidney Transplantation, China, 2007-2022. Emerg Infect Dis 2024; 30:1420-1424. [PMID: 38916588 PMCID: PMC11210647 DOI: 10.3201/eid3007.240009] [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: 06/26/2024] Open
Abstract
To evaluate the risk of acquiring syphilis from a donated kidney, we evaluated kidney transplantation pairs from West China Hospital, Sichuan, China, during 2007-2022. Donor-derived syphilis was rare. Risk may be higher if donors have active syphilis and may be reduced if recipients receive ceftriaxone.
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24
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Glad D, Anzalone C, Kane-Grade F, Gu L, Evans M, Kizilbash S. Neurodevelopmental profile of infants and toddlers awaiting a kidney transplant. Pediatr Nephrol 2024; 39:2187-2197. [PMID: 38285058 DOI: 10.1007/s00467-024-06282-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/30/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Infants and toddlers with kidney failure are susceptible to neurodevelopmental delays due to medical comorbidities and rapid brain development in early childhood. However, research on the neuropsychological development of this patient population has been limited over the past 10 years. METHODS We performed a retrospective study to evaluate the neurodevelopmental functioning of infants/toddlers with kidney failure who completed the Bayley Scales of Infant and Toddler Development (3rd and 4th Edition) as part of a pretransplant evaluation between 2010 and 2022 (n = 23; Mage = 18 months, SD = 8.53; 16 males) using t-tests, linear model, and Pearson correlations. RESULTS Mean Bayley scores of participants were below normative means for cognition (M = 86.74, 95% CI = 80.53-92.94, p < 0.001), language (M = 79.20, 95% CI = 73.32-85.08, p < 0.001), and motor (M = 78.00, 95% CI = 70.15-85.85, p < 0.001) domains. After adjusting for prematurity and epilepsy, patients on dialysis had significantly lower cognitive (78.7 vs. 93.8; p = 0.001) and motor scores (67.1 vs. 85.5; p = 0.01) compared to no dialysis. Pretransplant cognitive scores were positively correlated with posttransplant Full-Scale IQ (r(8) = 0.65 p = 0.04), verbal comprehension (r(8) = 0.75 p = 0.02), and fluid reasoning (r(7) = 0.68 p = 0.045). Similarly, pretransplant language scores were positively correlated with posttransplant Full-Scale IQ (r(7) = 0.74 p = 0.03) and verbal comprehension (r(7) = 0.73 p = 0.03). Of the 16 participants who reached age > 5 years during the study period, seven were diagnosed with a neurodevelopmental disorder, including three with autism spectrum disorder. CONCLUSIONS Infants and toddlers with kidney failure are at risk of developmental delays and later neurodevelopmental disorders. Dialysis is associated with cognitive and motor delays independent of prematurity and epilepsy.
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Affiliation(s)
- Danielle Glad
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Christopher Anzalone
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Finola Kane-Grade
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Lidan Gu
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Michael Evans
- Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN, USA
| | - Sarah Kizilbash
- Division of Pediatric Nephrology, Department of Pediatrics, University of Minnesota Medical School, 2450 Riverside Ave, Minneapolis, MN, MB680, USA.
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25
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Delaey P, Devresse A, Morelle J, Faitatzidou D, Iriarte M, Kanaan N, Buemi A, Mourad M, Darius T, Goffin E, Jadoul M, Labriola L. Etelcalcetide use During Maintenance Hemodialysis and Incidence of Parathyroidectomy After Kidney Transplantation. Kidney Int Rep 2024; 9:2146-2156. [PMID: 39081745 PMCID: PMC11284412 DOI: 10.1016/j.ekir.2024.04.004] [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: 11/15/2023] [Revised: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Etelcalcetide is an i.v. calcimimetic agent, effectively reducing parathyroid hormone levels in patients on maintenance hemodialysis (HD). The clinical impact of discontinuing etelcalcetide at the time of kidney transplantation is unknown. Methods We retrospectively reviewed all patients on HD meeting predefined criteria who received a kidney transplant at our institution between January 1, 2015, and December 12, 2022. The incidence of parathyroidectomy and the evolution of calcium, phosphate, and intact parathyroid hormone (iPTH) levels after transplantation was analyzed according to the type of calcimimetic treatment before transplantation (cinacalcet vs. etelcalcetide vs. none). Results Overall, 372 patients (aged 53 years; interquartile range [IQR]: 42-62 years) were included. At the time of transplantation, 35, 75, and 262 patients were under etelcalcetide, cinacalcet, or no calcimimetic, respectively. After 1064 (IQR: 367-1658) days, the incidences of parathyroidectomy in the etelcalcetide, cinacalcet, no calcimimetic groups were 29%, 12%, and 1%, respectively (P < 0.001). Etelcalcetide was associated with an increased incidence of parathyroidectomy after adjustment for age, sex, and HD vintage (hazard ratio [HR]: 97.0, 95% confidence interval [CI]: 19.1-493.9, P < 0.001). The incidence of parathyroidectomy was related to etelcalcetide dosage (6/11 [54.6%] in patients with ≥ 10 mg vs. 4/24 [16.7%] in patients with < 10 mg, P = 0.02). Moreover, peak calcium levels were higher (P < 0.001) and parathyroidectomy was performed earlier (median 80 vs. 480 days, P < 0.001) in the etelcalcetide compared with the cinacalcet group. Long-term graft function, graft loss, and mortality were similar. Conclusion Etelcalcetide use during maintenance HD is associated with an increased incidence of early parathyroidectomy after transplantation compared to cinacalcet or no calcimimetic.
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Affiliation(s)
- Philippe Delaey
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Arnaud Devresse
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
- Division of Abdominal and Transplant Surgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Johann Morelle
- Division of Nephrology, University Hospitals Namur (CHU UCL Namur), Namur, Belgium
| | - Danai Faitatzidou
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Division of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Miren Iriarte
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Division of Nephrology, Hospital del Mar, Barcelona, Spain
| | - Nada Kanaan
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Antoine Buemi
- Division of Abdominal and Transplant Surgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Michel Mourad
- Division of Abdominal and Transplant Surgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Tom Darius
- Division of Abdominal and Transplant Surgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Eric Goffin
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Michel Jadoul
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Laura Labriola
- Division of Nephrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
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Francisco D, Carnevale A, Ávila G, Calça AR, Matias P, Branco P. Transitioning to peritoneal dialysis: it does not matter where you come from. J Bras Nefrol 2024; 46:e20230139. [PMID: 38717919 PMCID: PMC11287956 DOI: 10.1590/2175-8239-jbn-2023-0139en] [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: 09/08/2023] [Accepted: 03/01/2024] [Indexed: 06/20/2024] Open
Abstract
INTRODUCTION Patients with end-stage renal disease (ESRD) frequently change renal replacement (RRT) therapy modality due to medical or social reasons. We aimed to evaluate the outcomes of patients under peritoneal dialysis (PD) according to the preceding RRT modality. METHODS We conducted a retrospective observational single-center study in prevalent PD patients from January 1, 2010, to December 31, 2017, who were followed for 60 months or until they dropped out of PD. Patients were divided into three groups according to the preceding RRT: prior hemodialysis (HD), failed kidney transplant (KT), and PD-first. RESULTS Among 152 patients, 115 were PD-first, 22 transitioned from HD, and 15 from a failing KT. There was a tendency for ultrafiltration failure to occur more in patients transitioning from HD (27.3% vs. 9.6% vs. 6.7%, p = 0.07). Residual renal function was better preserved in the group with no prior RRT (p < 0.001). A tendency towards a higher annual rate of peritonitis was observed in the prior KT group (0.70 peritonitis/year per patient vs. 0.10 vs. 0.21, p = 0.065). Thirteen patients (8.6%) had a major cardiovascular event, 5 of those had been transferred from a failing KT (p = 0.004). There were no differences between PD-first, prior KT, and prior HD in terms of death and technique survival (p = 0.195 and p = 0.917, respectively) and PD efficacy was adequate in all groups. CONCLUSIONS PD is a suitable option for ESRD patients regardless of the previous RRT and should be offered to patients according to their clinical and social status and preferences.
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Affiliation(s)
- Diogo Francisco
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
| | - Andreia Carnevale
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
| | - Gonçalo Ávila
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
| | - Ana Rita Calça
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
| | - Patrícia Matias
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
| | - Patrícia Branco
- Centro Hospitalar Lisboa Ocidental, Serviço de Nefrologia, Lisboa,
Portugal
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27
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Pedreira-Robles G, Bach-Pascual A, Collado-Nieto S, Padilla E, Burballa C, Arias-Cabrales C, Redondo-Pachón D, Sánchez F, Horcajada JP, Pascual J, Crespo M, Villar-García J, Pérez-Sáez MJ. Screening for tropical and imported infections in migrant kidney transplant candidates from the kidney transplant access consultation. Nefrologia 2024; 44:549-559. [PMID: 39079886 DOI: 10.1016/j.nefroe.2024.07.006] [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: 03/03/2023] [Revised: 10/05/2023] [Accepted: 10/05/2023] [Indexed: 09/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVE Kidney transplantation (KT) should be postponed in those people with active bacterial, fungal, viral and parasitic processes, since these must be treated and resolved previously. The objective of this study is to present the screening circuit implemented by the Nephrology clinic and describe the prevalence of tropical and imported infections in KT candidates born or coming from endemic areas. MATERIALS AND METHODS Descriptive cross-sectional study, carried out in 2021. Sociodemographic and clinical variables, serological data of general infections and specific tests of tropical infectious diseases were collected. A descriptive analysis of the data was carried out. RESULTS 67 TR candidates from Latin America (32.8%), North Africa (22.4%), Sub-Saharan Africa (14.9%) and Asia (29.9%) were included. 68.7% were men and the mean age was 48.9 ± 13.5 years. After the general and specific studies, 42 (62.7%) patients were referred to the Infectious Diseases Service to complete this study or indicate treatment. 35.8% of the patients had eosinophilia, and in one case parasites were detected in feces at the time of the study. Serology for strongyloidiasis was positive in 18 (26.9%) cases, while positive serology for other tropical infections was hardly detected. 34.3% of patients had latent tuberculosis infection. CONCLUSIONS The prevalence of tropical and imported infections in migrant candidates for RT was low, except for strongyloidiasis and latent tuberculosis infection. Its detection and treatment are essential to avoid serious complications in post-TR. To this end, the implementation of an interdisciplinary screening program from the KT access consultation is feasible, necessary and useful.
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Affiliation(s)
- Guillermo Pedreira-Robles
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; ESIMar (Escuela Superior de Enfermería del Mar), Parc de Salut Mar, Centro adscrito a la Universitat Pompeu Fabra, Barcelona, Spain; SDHEd (Grupo de Investigación en Determinantes Sociales y Educación en Salud), IMIM (Instituto Hospital del Mar de Investigaciones Médicas), Barcelona, Spain
| | - Anna Bach-Pascual
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain
| | - Silvia Collado-Nieto
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain
| | | | - Carla Burballa
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain
| | - Carlos Arias-Cabrales
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain
| | - Dolores Redondo-Pachón
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain
| | - Francisca Sánchez
- Servicio de Enfermedades Infecciosas, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Universitat Pompeu Fabra, Hospital del Mar, Barcelona, Spain
| | - Juan Pablo Horcajada
- Servicio de Enfermedades Infecciosas, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Universitat Pompeu Fabra, Hospital del Mar, Barcelona, Spain
| | - Julio Pascual
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain; Servicio de Nefrología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Marta Crespo
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain
| | - Judit Villar-García
- Servicio de Enfermedades Infecciosas, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Universitat Pompeu Fabra, Hospital del Mar, Barcelona, Spain
| | - María José Pérez-Sáez
- Servicio de Nefrología, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain; Grupo de Investigación en Nefropatías, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), RD21/0005/0022 (ISCIII MRR RICORS), Barcelona, Spain.
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Huh J, Kwon H, Park H, Park SC, Yun SS, Chae MS. Impact of Norepinephrine and Dopamine Infusion on Renal Arterial Resistive Index during Pre-Emptive Living Donor Kidney Transplantation: Propensity Score Matching Analysis. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:1066. [PMID: 39064495 PMCID: PMC11278998 DOI: 10.3390/medicina60071066] [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: 05/29/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024]
Abstract
Background: Living donor kidney transplantation (LDKT) is a crucial treatment for end-stage renal disease, with pre-emptive LDKT (transplantation before dialysis initiation) offering significant benefits in graft function and patient survival. The selection of a vasopressor during LDKT, particularly between norepinephrine and dopamine, and its impact on renal arterial hemodynamics measured using the renal arterial resistive index (RARI) is poorly understood. Methods: This retrospective observational cohort study enrolled 347 eligible pre-emptive LDKT recipients from the Seoul St. Mary's Hospital between January 2019 and June 2023. Utilizing propensity score matching (PSM), the patients were categorized into dopamine and norepinephrine groups to compare the effects of these vasopressors on the intraoperative RARI, postoperative estimated glomerular filtration rate (eGFR), and hourly urine output. The RARI was measured via the Doppler ultrasonography of the renal hilum and parenchyma post-graft vascular and ureteral anastomoses. Results: The preoperative differences in the recipients' and donors' characteristics were mitigated following PSM. The dopamine group exhibited higher intraoperative RARI values at the renal hilum (0.77 ± 0.11 vs. 0.66 ± 0.13, p < 0.001) and parenchyma (0.71 ± 0.1 vs. 0.6 ± 0.1, p < 0.001) compared to those of the norepinephrine group. However, these differences were not statistically significant on postoperative day 7. The norepinephrine infusion adjusted for the propensity scores was associated with significantly lower odds of an RARI > 0.8 (hilum: OR = 0.214, 95% CI = 0.12-0.382, p < 0.001; parenchyma: OR = 0.1, 95% CI = 0.029-0.348, p < 0.001). The early postoperative outcomes showed a higher eGFR (day 1: 30.0 ± 13.3 vs. 25.1 ± 17.4 mL/min/1.73 m2, p = 0.004) and hourly urine output (day 1: 41.8 ± 16.9 vs. 36.5 ± 14.4 mL/kg/h, p = 0.002) in the norepinephrine group. Furthermore, the long-term outcomes were comparable between the groups. Conclusions: Norepinephrine infusion during pre-emptive LDKT is associated with more favorable intraoperative renal arterial hemodynamics, as evidenced by a lower RARI and improved early postoperative renal function compared to those of dopamine. These findings suggest a potential preferential role for norepinephrine in optimizing perioperative management and early graft functions in LDKT recipients. Given the retrospective nature of this study, further prospective studies are needed to confirm these observations. Additionally, the study limitations include the potential for unmeasured confounding factors and the inability to determine causality due to its observational design.
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Affiliation(s)
- Jaewon Huh
- Department of Anesthesiology and Pain Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hyejin Kwon
- Department of Anesthesiology and Pain Medicine, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hunwoo Park
- Department of Anesthesiology and Pain Medicine, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sun Cheol Park
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sang Seob Yun
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Min Suk Chae
- Department of Anesthesiology and Pain Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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29
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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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30
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Zeder K, Siew ED, Kovacs G, Brittain EL, Maron BA. Pulmonary hypertension and chronic kidney disease: prevalence, pathophysiology and outcomes. Nat Rev Nephrol 2024:10.1038/s41581-024-00857-7. [PMID: 38890546 DOI: 10.1038/s41581-024-00857-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
Pulmonary hypertension (PH) is common in patients with chronic kidney disease (CKD) or kidney failure, with an estimated prevalence of up to 78% in those referred for right-heart catheterization. PH is independently associated with adverse outcomes in CKD, raising the possibility that early detection and appropriate management of PH might improve outcomes in at-risk patients. Among patients with PH, the prevalence of CKD stages 3 and 4 is estimated to be as high as 36%, and CKD is also independently associated with adverse outcomes. However, the complex, heterogenous pathophysiology and clinical profile of CKD-PH requires further characterization. CKD is often associated with elevated left ventricular filling pressure and volume overload, which presumably leads to pulmonary vascular stiffening and post-capillary PH. By contrast, a distinct subgroup of patients at high risk is characterized by elevated pulmonary vascular resistance and right ventricular dysfunction in the absence of pulmonary venous hypertension, which may represent a right-sided cardiorenal syndrome defined in principle by hypervolaemia, salt avidity, low cardiac output and normal left ventricular function. Current understanding of CKD-PH is limited, despite its potentially important ramifications for clinical decision making. In particular, whether PH should be considered when determining the suitability and timing of kidney replacement therapy or kidney transplantation is unclear. More research is urgently needed to address these knowledge gaps and improve the outcomes of patients with or at risk of CKD-PH.
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Affiliation(s)
- Katarina Zeder
- Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA
| | - Edward D Siew
- Division of Nephrology and Hypertension, Vanderbilt Center for Kidney Disease and Integrated Program for Acute Kidney Injury, Nashville, TN, USA
| | - Gabor Kovacs
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Evan L Brittain
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bradley A Maron
- Division of Cardiovascular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
- The University of Maryland-Institute for Health Computing, Bethesda, MD, USA.
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D'Aragon F, Selzner M, Breau R, Masse MH, Lamontagne F, Masse M, Chassé M, Carrier FM, Cardinal H, Chaudhury P, Weiss M, Lauzier F, Turgeon AF, Frenette AJ, Bolduc B, Ducharme A, Lamarche C, Couture E, Holdsworth S, Bertholz L, Talbot H, Slessarev M, Luke P, Boyd JG, Shamseddin MK, Burns KEA, Zaltzman J, English S, Knoll G, Dhanani S, Healey A, Hanna S, Rochwerg B, Oczkowski SJW, Treleaven D, Meade M. Calcineurin Inhibitor in NEuRoloGically deceased donors to decrease kidney delayed graft function study: study protocol of the CINERGY Pilot randomised controlled trial. BMJ Open 2024; 14:e086777. [PMID: 38871657 PMCID: PMC11177676 DOI: 10.1136/bmjopen-2024-086777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 05/17/2024] [Indexed: 06/15/2024] Open
Abstract
INTRODUCTION Most solid organ transplants originate from donors meeting criteria for death by neurological criteria (DNC). Within the organ donor, physiological responses to brain death increase the risk of ischaemia reperfusion injury and delayed graft function. Donor preconditioning with calcineurin inhibition may reduce this risk. METHODS AND ANALYSIS We designed a multicentre placebo-controlled pilot randomised trial involving nine organ donation hospitals and all 28 transplant programmes in the Canadian provinces of Ontario and Québec. We planned to enrol 90 DNC donors and their approximately 324 organ recipients, totalling 414 participants. Donors receive an intravenous infusion of either tacrolimus 0.02 mg/kg over 4 hours prior to organ retrieval, or a matching placebo, while monitored in an intensive care unit for any haemodynamic changes during the infusion. Among all study organ recipients, we record measures of graft function for the first 7 days in hospital and we will record graft survival after 1 year. We examine the feasibility of this trial with respect to the proportion of all eligible donors enrolled and the proportion of all eligible transplant recipients consenting to receive a CINERGY organ transplant and to allow the use of their health data for study purposes. We will report these feasibility outcomes as proportions with 95% CIs. We also record any barriers encountered in the launch and in the implementation of this trial with detailed source documentation. ETHICS AND DISSEMINATION We will disseminate trial results through publications and presentations at participating sites and conferences. This study has been approved by Health Canada (HC6-24-c241083) and by the Research Ethics Boards of all participating sites and in Québec (MP-31-2020-3348) and Clinical Trials Ontario (Project #3309). TRIAL REGISTRATION NUMBER NCT05148715.
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Affiliation(s)
- Frederick D'Aragon
- Department of Anesthesiology, Université de Sherbrooke, Sherbrooke, Quebec, Canada
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Markus Selzner
- Multi-Organ Transplant Program, Toronto General Hospital, Toronto, Quebec, Canada
- Department of General Surgery, University of Toronto and Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Ruth Breau
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Marie-Hélène Masse
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Francois Lamontagne
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
- Department of Medicine, Universite de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Mélanie Masse
- Department of Medicine, Universite de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Michael Chassé
- Department of Medicine, Université de Montréal, Montreal, Québec, Canada
| | - François-Martin Carrier
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Héloïse Cardinal
- Department of Medicine, Université de Montréal, Montreal, Québec, Canada
| | - Prosanto Chaudhury
- Department of Surgery and Oncology, McGill University, Montreal, Québec, Canada
- Transplant Québec, Montréal, Québec, Canada
| | - Matthew Weiss
- Transplant Québec, Montreal, Québec, Canada
- Population Health and Optimal Health Practives Research Unit (Trauma - Emergency - Critical Care Medicine), Centre de Recherche du CHU de Québec - Université Laval, Quebec, Quebec, Canada
| | - Francois Lauzier
- Population Health and Optimal Health Practives Research Unit (Trauma - Emergency - Critical Care Medicine), Centre de Recherche du CHU de Québec - Université Laval, Quebec, Quebec, Canada
- Department of Medicine, Université Laval, Québec City, Québec, Canada
- Department of Anesthesiology and Critical Care Medicine, Division of Critical Care Medicine, Université Laval, Québec City, Québec, Canada
| | - Alexis F Turgeon
- Population Health and Optimal Health Practives Research Unit (Trauma - Emergency - Critical Care Medicine), Centre de Recherche du CHU de Québec - Université Laval, Quebec, Quebec, Canada
- Department of Anesthesiology and Critical Care Medicine, Division of Critical Care Medicine, Université Laval, Québec City, Québec, Canada
| | | | - Brigitte Bolduc
- Department of Pharmacy, Centre integre universitaire de sante et de services sociaux de l'Estrie Centre hospitalier universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Anique Ducharme
- Department of Medicine, Université de Montréal, Montreal, Québec, Canada
- Montreal Heart Institute, Montreal, Québec, Canada
| | - Caroline Lamarche
- Department of Medicine, Université de Montréal, Montreal, Québec, Canada
- Hôpital Maisonneuve-Rosemont Research Institute, Montréal, Québec, Canada
| | - Etienne Couture
- Department of Anesthesiology and Critical Care, Quebec Heart & Lung Institute, Université Laval, Quebec, Quebec, Canada
| | - Sandra Holdsworth
- Canadian Donation and Transplant Research Program, Edmonton, Alberta, Canada
| | - Liz Bertholz
- Canadian Donation and Transplant Research Program, Edmonton, Alberta, Canada
| | - Heather Talbot
- Canadian Donation and Transplant Research Program, Edmonton, Alberta, Canada
| | - Marat Slessarev
- Department of Medicine, Division of Critical Care, Western University, London, Ontario, Canada
| | - Patrick Luke
- Department of Surgery, Division of Urology, Western University, London, Ontario, Canada
| | - John Gordon Boyd
- Department of Medicine, Division of Neurology, Queen's University, Kingston, Ontario, Canada
- Department of Critical Care Medicine, Queen's University, Kingston, Ontario, Canada
| | - M Khaled Shamseddin
- Department of Medicine, Division of Nephrology, Queen's University, Kingston, Ontario, Canada
| | - Karen E A Burns
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, University Health Toronto - St. Michael's Hospital, Toronto, Ontario, Canada
| | - Jeffrey Zaltzman
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Shane English
- Division of Critical Care, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Greg Knoll
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Medicine, Division of Nephrology, University of Ottawa, Ottawa, Ontario, Canada
| | - Sonny Dhanani
- Department of Pediatrics, Division of Critical Care, Children's Hospital of Eastern Ontario and University of Ottawa, Ottawa, Ontario, Canada
| | - Andrew Healey
- Department of Medicine, Division of Emergency Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Steven Hanna
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Bram Rochwerg
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | - Darin Treleaven
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Maureen Meade
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
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Zhang Z, Driskill E, Chi J, Gean RP, Cui Q. Total Hip Arthroplasty Outcomes before or after Renal Transplant: A Retrospective Large Cohort Analysis. Clin Orthop Surg 2024; 16:382-389. [PMID: 38827758 PMCID: PMC11130632 DOI: 10.4055/cios23351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/17/2023] [Accepted: 12/17/2023] [Indexed: 06/04/2024] Open
Abstract
Background While it is known that patients with end-stage renal disease (ESRD) are at an increased risk of complications following total hip arthroplasty (THA), there is a gap in the literature in comparing patients with ESRD to patients who undergo renal transplant (RT) before or after THA. This study is to address this gap by analyzing outcomes of THA in ESRD patients, RT patients, and RT candidates. Methods Using the PearlDiver Mariner database, ESRD patients, RT patients, and RT candidates undergoing primary THA were identified and compared. Multivariable logistic regression analyses were done for medical complications up to 90 days and surgical complications up to 2 years. Ninety-day emergency department (ED) visits and inpatient readmission were also documented. Results A total of 7,868 patients were included: 5,092 had ESRD, 2,520 had RT before THA, and 256 were candidates for RT. Compared to patients with ESRD, RT patients demonstrated lower rates of medical complications such as pneumonia (3.61% vs. 5.99%, p = 0.039) and transfusion (4.60% vs. 7.66%, p < 0.001). Additionally, RT patients displayed decreased rates of surgical complications, including wound complications (2.70% vs. 4.22%, p = 0.001), periprosthetic joint infection (PJI) at 1 year (2.30% vs. 4.81%, p < 0.001) and 2 years (2.58% vs. 5.42%, p < 0.001), and aseptic loosening at 2 years (0.79% vs. 1.43%, p = 0.006). Similarly, when compared to RT candidates, RT patients demonstrated a lower incidence of postoperative complications, including 1-year PJI (2.30% vs. 5.08%, p = 0.013), 2-year PJI (2.58% vs. 5.08%, p = 0.028), 1-year aseptic loosening (0.56% vs. 2.73%, p < 0.001), and 2-year aseptic loosening (0.79% vs. 2.73%, p = 0.005). RT patients also had lower rates of ED visits and hospital readmissions. Conclusions Compared to ESRD patients and RT candidates, patients with RT have a significantly lower likelihood of medical complications, PJI, aseptic hardware loosening, ED visits, and hospital readmission. Patients with ESRD on the RT waiting list should delay THA until after RT surgery. For those not eligible for RT, it is vital to take extra precautions to reduce the risk of complications.
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Affiliation(s)
- Zhichang Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, China
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Elizabeth Driskill
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Jialun Chi
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Richard P. Gean
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Quanjun Cui
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA, USA
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Pedreira-Robles G, Garcimartín P, Sevilla-Guerra S, Bach-Pascual A, García-Martínez M, Morín-Fraile V. Nurse-led clinical activity in kidney transplantation care in Spain: A cross-sectional observational study. J Ren Care 2024; 50:168-175. [PMID: 36906846 DOI: 10.1111/jorc.12463] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/11/2023] [Accepted: 02/25/2023] [Indexed: 03/13/2023]
Abstract
OBJECTIVES To explore the presence of specialist outpatient nursing activity in care for kidney transplant recipients in Spain and to determine the level of competence development of this activity according to the Advanced Practice Nurse model. DESIGN Descriptive, cross-sectional study. PARTICIPANTS AND MEASUREMENTS All outpatient nurses specialising in renal transplantation in the 39 transplant hospitals in Spain were included. To fulfil the study objectives, an ad hoc questionnaire and the 'Advanced Practice Nurse Role Definition Instrument (IDREPA)' were administered to assess the nurses' level of competence development. RESULTS Of the facilities included in the study, 25 (64.1%) had posttransplant nursing activity, 13 (33.3%) had pretransplant nursing activity and 11 (28.2%) had nursing activity involving kidney donor candidates. Twenty-seven specialist nurse's offices were identified. The results of the IDREPA reflect the presence of advanced practice in the domains of 'expert care planning' and 'comprehensive care'. Three (11.1%) nurses met all criteria for advanced nursing practice. CONCLUSION The results on specialised outpatient nursing activity at the 39 transplantation facilities in Spain indicate a low presence of this type of activity, with an even lower presence of advanced practice nurses. IMPLICATIONS FOR CLINICAL PRACTICE Management teams should consider investing in the quality of care provided by advanced nurse practice to ensure that suitable treatment is provided and better clinical outcomes are obtained.
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Affiliation(s)
- Guillermo Pedreira-Robles
- Nephrology Department, Hospital del 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 direction, Hospital del Mar, Barcelona, Spain
- Department of Biomedical Research in Heart Diseases, Hospital del Mar Institute for Medical Research (IMIM), Barcelona, Spain
| | - Sonia Sevilla-Guerra
- Gerència de Processos Integrats de Salut, Àrea Assistencial, Catalan Health System, Barcelona, Spain
| | | | | | - Victoria Morín-Fraile
- Department of Public Health, Mental and Maternal and Child Health, Nursing School, University of Barcelona, Barcelona, Spain
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Sampaio NZ, Faleiro MD, Vieira LVDS, Lech GE, Viana SW, Tavares CPO, Mattiazzi AD, Burke GW. Simultaneous Heart and Kidney Transplantation: A Systematic Review and Proportional Meta-Analysis of Its Characteristics and Long-Term Variables. Transpl Int 2024; 37:12750. [PMID: 38881801 PMCID: PMC11176494 DOI: 10.3389/ti.2024.12750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/13/2024] [Indexed: 06/18/2024]
Abstract
Patients with end-stage heart disease who undergo a heart transplant frequently have simultaneous kidney insufficiency, therefore simultaneous heart and kidney transplantation is an option and it is necessary to understand its characteristics and long-term variables. The recipient characteristics and operative and long-term variables were assessed in a meta-analysis. A total of 781 studies were screened, and 33 were thoroughly reviewed. 15 retrospective cohort studies and 376 patients were included. The recipient's mean age was 51.1 years (95% CI 48.52-53.67) and 84% (95% CI 80-87) were male. 71% (95% CI 59-83) of the recipients were dialysis dependent. The most common indication was ischemic cardiomyopathy [47% (95% CI 41-53)] and cardiorenal syndrome [22% (95% CI 9-35)]. Also, 33% (95% CI 20-46) of the patients presented with delayed graft function. During the mean follow-up period of 67.49 months (95% CI 45.64-89.33), simultaneous rejection episodes of both organ allografts were described in 5 cases only. Overall survival was 95% (95% CI 88-100) at 30 days, 81% (95% CI 76-86) at 1 year, 79% (95% CI 71-87) at 3, and 71% (95% CI 59-83) at 5 years. Simultaneous heart and kidney transplantation is an important option for concurrent cardiac and renal dysfunction and has acceptable rejection and survival rates.
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Affiliation(s)
| | | | | | - Gabriele Eckerdt Lech
- Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | | | - Adela D. Mattiazzi
- Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
| | - George W. Burke
- Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
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35
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Chirban A, del Valle DD, Coe T, Cote MP, Chen M, Cataldo J, Elias N, Shah A, Dageforde LA. Elements of Weight Management Among Pre-Kidney Transplant Candidates: The Patient Perspective. Transpl Int 2024; 37:12735. [PMID: 38855426 PMCID: PMC11160837 DOI: 10.3389/ti.2024.12735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024]
Abstract
Obesity and related comorbidities heighten risks for complications in kidney transplant settings. While pre-transplant patients often have access to nutrition counseling and health support, literature is limited on patients' perceptions of weight and motivation to lose weight prior to transplantation. We conducted a survey among ≥18-year-old patients on the kidney transplant waitlist at a single center. Questions addressed weight perception, motivation for weight loss, available resources, and engagement in physical activity. Medical records provided demographic and clinical data. Statistical tests analyzed quantitative data, while free-text responses were thematically grouped and described. Of 1055 patients, 291 responded and were matched with demographic data. Perceived weight changes correlated with actual changes in body mass index (BMI) (<24.9) were more receptive to weight center resources (<30 kg/m2) are most interested in weight loss resources and demonstrate motivation. Furthermore, pre-transplant nutrition counseling correlates with healthier behaviors. Integrating patients' perspectives enhances pre-transplant protocols by encouraging active involvement in health decisions.
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Affiliation(s)
- Ariana Chirban
- San Diego School of Medicine, University of California, San Diego, CA, United States
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Diana D. del Valle
- Harvard Medical School, Boston, MA, United States
- Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Taylor Coe
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Maria P. Cote
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Maggie Chen
- School of Medicine, University of Maryland, Baltimore, MD, United States
| | - Jennie Cataldo
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Nahel Elias
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Anushi Shah
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Leigh Anne Dageforde
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
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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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Kwiatkowska-Stawiarczyk M, Symonides B, Lewandowski J, Marcinkowski W, Zawierucha J, Wojtaszek E, Małyszko J. Iron Management and Anemia in Patients on the Active Kidney Transplant List. Transplant Proc 2024; 56:793-795. [PMID: 38692965 DOI: 10.1016/j.transproceed.2024.04.004] [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: 12/31/2023] [Revised: 01/30/2024] [Accepted: 04/08/2024] [Indexed: 05/03/2024]
Abstract
INTRODUCTION Iron metabolism disorders and anemia are one of the main complications of end-stage renal disease that may affect the evaluation process for kidney transplantation. The study aimed to assess the iron metabolism in hemodialysis patients in relation to waiting list status. STUDY METHOD The study included 5068 hemodialysis patients, including those on the active waiting list (N = 449) and those who were not eligible for the waitlist (N = 4619). Demographic and biochemical data, Charlson's comorbidity index, duration of hemodialysis therapy and, respectively, hemoglobin, ferritin, and transferrin saturation levels were compared in both groups of patients. RESULTS Patients on the active waiting list were significantly younger -53.2 vs 67.2 years (P < .001), with a lower Charlson comorbidity index score: 3.33 vs 4.42 (P < .001). The duration of hemodialysis therapy was similar: 66.0 vs 63.2 months (P = .416), the incidence of anemia according to World Health Organization (90.6%, vs 91.2%) and KDIGO (72.4% vs 70.4%). The degree of anemia correction in terms of hemoglobin concentration and transferrin saturation was comparable in both groups and amounted to an average of 10.9 g/dL (P = .349) for hemoglobin concentration and 32.7% vs 33.4% (P = .513) for transferrin saturation. However, there was a statistically significant difference in ferritin concentration: 554 ug/L vs 733 ug/L (P = .001). CONCLUSIONS Patients on the active list have significantly lower ferritin levels despite similar duration of hemodialysis treatment and comparable hemoglobin values. This may be due to lower inflammation, and less frequent blood transfusions, and lead to a lower risk of immunization and an increased chance of potential kidney transplantation.
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Affiliation(s)
| | - Bartosz Symonides
- Department of Internal Medicine, Hypertension and Vascular Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Jacek Lewandowski
- Department of Internal Medicine, Hypertension and Vascular Diseases, Medical University of Warsaw, Warsaw, Poland
| | | | | | - Ewa Wojtaszek
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jolanta Małyszko
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
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Farisco M, Blumblyte IA, Franssen C, Nitsch D, Zecchino I, Capasso G, Hafez G. Cognitive decline related to chronic kidney disease as an exclusion factor from kidney transplantation: results from an international survey. Clin Kidney J 2024; 17:sfae114. [PMID: 38745874 PMCID: PMC11092267 DOI: 10.1093/ckj/sfae114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Indexed: 05/16/2024] Open
Abstract
Background and hypothesis There seems to be a lack of consensus on the necessity and the modality of psychological and specifically cognitive assessment of candidates for kidney transplantation. Both points are often delegated to individual hospitals/centres, whereas international guidelines are inconsistent. We think it is essential to investigate professionals' opinions to advance towards a consistent clinical practice. Methods This paper presents the results of an international survey among clinical professionals, mainly nephrologists from the CONNECT (Cognitive decline in Nephro-Neurology: European Cooperative Target) network and beyond (i.e. from personal contacts of CONNECT members). The survey investigated their opinions about the question of whether cognitive decline in patients with chronic kidney disease may affect their eligibility for kidney transplantation. Results Our results show that most clinicians working with patients affected by chronic kidney disease think that cognitive decline may challenge their eligibility for transplantation despite data that suggest that, in some patients, cognitive problems improve after kidney transplantation. Conclusion We conclude that three needs emerge as particularly pressing: defining agreed-on standards for a multifaceted and multifactorial assessment (i.e. including both clinical/medical and psychosocial factors) of candidates with chronic kidney disease to kidney transplantation; further investigating empirically the causal connection between chronic kidney disease and cognition; and further investigating empirically the possible partial reversibility of cognitive decline after kidney transplantation.
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Affiliation(s)
- Michele Farisco
- Department of Public Health and Caring Sciences, Centre for Research Ethics and Bioethics, Uppsala University, Uppsala, Sweden
- Biogem Molecular Biology and Genetics Research Institute, Ariano Irpino (AV), Italy
| | - Inga A Blumblyte
- Department of Nephrology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Casper Franssen
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Dorothea Nitsch
- UK Renal Registry, UK Kidney Association, Bristol, UK
- Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
- Department of Nephrology, Royal Free London NHS Foundation Trust, London, UK
| | - Irene Zecchino
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Giovambattista Capasso
- Department of Public Health and Caring Sciences, Centre for Research Ethics and Bioethics, Uppsala University, Uppsala, Sweden
- Department Translational Medical Science, University Campania Luigi Vanvitelli, Naples, Italy
| | - Gaye Hafez
- Department of Pharmacology, Faculty of Pharmacy, Altinbas University, Istanbul, Turkey
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Omic H, Eder M. Effect of increasing age and ureteral stent implantation on urinary tract infections after kidney transplantation - update of recent literature. Curr Opin Urol 2024; 34:146-153. [PMID: 38426237 PMCID: PMC10990026 DOI: 10.1097/mou.0000000000001163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
PURPOSE OF REVIEW This review aims to present the recent literature regarding effects of aging and ureteral stent implantation (UrS) on the risk of urinary tract infections (UTIs) in kidney transplant (KTX) recipients. RECENT FINDINGS UTIs in kidney transplant recipients remain a clinical challenge and represent a leading cause of morbidity, hospitalization rates, and mortality. Higher age was described as a significant risk factor for UTIs in several studies including a recent Brazilian analysis, indicating a 3.6%/years of age increase in UTI risk. Subsequently, a large meta-analysis, published in 2023, confirmed the correlation between older age and elevated UTI risk. The Swiss Transplant Cohort Study in 2022, largest of its kind, similarly confirmed a link between advanced age and heightened risk of recurrent UTIs in KTX. A recent prospective study highlighted UrS placement as a modifiable risk factor, emphasizing the need for careful consideration and antibiotic prophylaxis. Additionally, the type of stents played a crucial role, with external stents associated with a 1.69 times higher UTI risk. The challenge of determining optimal UrS removal timing further complicates posttransplant care, with insufficient evidence to guide practices. SUMMARY The aging population of KTX recipients requires a personalized approach to effectively reduce and manage UTIs as one of the most important complications following KTX. Prophylactic stent implantation is successful in lowering ureteral complications, however, is associated with an increased incidence of UTIs. To reduce the increased risk of UTIs, the length of stent insertion requires strict supervision and maintenance.
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Affiliation(s)
- Haris Omic
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Vienna, Austria
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Jakubowska Z, Kępska-Dzilińska M, Żebrowski P, Macech M, Nazarewski S, Gałązka Z, Małyszko J. Left-Sided Pneumothorax in a Potential Kidney Transplant Recipient-A Surprise in the Surgical Ward: Case Report. Transplant Proc 2024; 56:992-994. [PMID: 38705736 DOI: 10.1016/j.transproceed.2024.04.010] [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: 01/01/2024] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND The risk of morbidity and mortality in the group of people qualified for kidney transplantation is high. Although currently, the qualification for kidney transplantation is very extensive and detailed, the final examination and assessment at the transplant center is crucial for the success of the transplantation. CASE REPORT A 50-year-old woman with end-stage kidney disease was admitted to the Department of General, Vascular, and Transplant Surgery on July 21, 2023, for kidney transplantation. A month earlier, she had undergone surgery to create an arteriovenous fistula on the left forearm. The regional anesthesia was performed. Apart from temporary pain and cough, the postoperative course was uncomplicated. Upon admission to the Department, the patient was in good general condition, and only a dry cough was noted during the physical examination. Chest X-ray revealed pneumothorax on the left side with partial lung atelectasis. The patient was temporarily disqualified from kidney transplantation and the pneumothorax was cured. She is currently on the active list waiting for a kidney transplant. CONCLUSIONS The analysis of the above case emphasizes the importance of a physical examination and final qualification at the transplant center. Detailed examination and evaluation at the above center can improve patients' quality of life and survival.
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Affiliation(s)
- Zuzanna Jakubowska
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland.
| | | | - Paweł Żebrowski
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Michał Macech
- Department of General, Vascular and Transplant Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Sławomir Nazarewski
- Department of General, Vascular and Transplant Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Zbigniew Gałązka
- Department of General, Vascular and Transplant Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Jolanta Małyszko
- Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
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41
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Vaidya A, Chen RJ, Williamson DFK, Song AH, Jaume G, Yang Y, Hartvigsen T, Dyer EC, Lu MY, Lipkova J, Shaban M, Chen TY, Mahmood F. Demographic bias in misdiagnosis by computational pathology models. Nat Med 2024; 30:1174-1190. [PMID: 38641744 DOI: 10.1038/s41591-024-02885-z] [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: 09/03/2023] [Accepted: 02/23/2024] [Indexed: 04/21/2024]
Abstract
Despite increasing numbers of regulatory approvals, deep learning-based computational pathology systems often overlook the impact of demographic factors on performance, potentially leading to biases. This concern is all the more important as computational pathology has leveraged large public datasets that underrepresent certain demographic groups. Using publicly available data from The Cancer Genome Atlas and the EBRAINS brain tumor atlas, as well as internal patient data, we show that whole-slide image classification models display marked performance disparities across different demographic groups when used to subtype breast and lung carcinomas and to predict IDH1 mutations in gliomas. For example, when using common modeling approaches, we observed performance gaps (in area under the receiver operating characteristic curve) between white and Black patients of 3.0% for breast cancer subtyping, 10.9% for lung cancer subtyping and 16.0% for IDH1 mutation prediction in gliomas. We found that richer feature representations obtained from self-supervised vision foundation models reduce performance variations between groups. These representations provide improvements upon weaker models even when those weaker models are combined with state-of-the-art bias mitigation strategies and modeling choices. Nevertheless, self-supervised vision foundation models do not fully eliminate these discrepancies, highlighting the continuing need for bias mitigation efforts in computational pathology. Finally, we demonstrate that our results extend to other demographic factors beyond patient race. Given these findings, we encourage regulatory and policy agencies to integrate demographic-stratified evaluation into their assessment guidelines.
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Affiliation(s)
- Anurag Vaidya
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Health Sciences and Technology, Harvard-MIT, Cambridge, MA, USA
| | - Richard J Chen
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
| | - Drew F K Williamson
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Andrew H Song
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Guillaume Jaume
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Yuzhe Yang
- Electrical Engineering and Computer Science, MIT, Cambridge, MA, USA
| | - Thomas Hartvigsen
- School of Data Science, University of Virginia, Charlottesville, VA, USA
| | - Emma C Dyer
- T.H. Chan School of Public Health, Harvard University, Cambridge, MA, USA
| | - Ming Y Lu
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
- Electrical Engineering and Computer Science, MIT, Cambridge, MA, USA
| | - Jana Lipkova
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Muhammad Shaban
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Tiffany Y Chen
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Faisal Mahmood
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA, USA.
- Cancer Data Science Program, Dana-Farber Cancer Institute, Boston, MA, USA.
- Harvard Data Science Initiative, Harvard University, Cambridge, MA, USA.
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Levy S, Attia A, Omar M, Langford N, Vijay A, Jeon H, Galvani C, Killackey MT, Paramesh AS. Collaborative Approach Toward Transplant Candidacy for Obese Patients with End-Stage Renal Disease. J Am Coll Surg 2024; 238:561-572. [PMID: 38470035 DOI: 10.1097/xcs.0000000000000962] [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: 03/13/2024]
Abstract
BACKGROUND An elevated BMI is a major cause of transplant preclusion for patients with end-stage renal disease (ESRD). This phenomenon exacerbates existing socioeconomic and racial disparities and increases the economic burden of maintaining patients on dialysis. Metabolic bariatric surgery (MBS) in such patients is not widely available. Our center created a collaborative program to undergo weight loss surgery before obtaining a kidney transplant. STUDY DESIGN We studied the outcomes of these patients after MBS and transplant surgery. One hundred eighty-three patients with ESRD were referred to the bariatric team by the transplant team between January 2019 and June 2023. Of these, 36 patients underwent MBS (20 underwent Roux-en-Y gastric bypass and 16 underwent sleeve gastrectomy), and 10 underwent subsequent transplantation, with another 15 currently waitlisted. Both surgical teams shared resources, including dieticians, social workers, and a common database, for easy transition between teams. RESULTS The mean starting BMI for all referrals was 46.4 kg/m 2 and was 33.9 kg/m 2 at the time of transplant. The average number of hypertension medications decreased from 2 (range 2 to 4) presurgery to 1 (range 1 to 3) postsurgery. Similarly, hemoglobin A1C levels improved, with preoperative averages at 6.2 (range 5.4 to 7.6) and postoperative levels at 5.2 (range 4.6 to 5.8) All transplants are currently functioning, with a median creatinine of 1.5 (1.2 to 1.6) mg/dL (glomerular filtration rate 46 [36.3 to 71]). CONCLUSIONS A collaborative approach between bariatric and transplant surgery teams offers a pathway toward transplant for obese ESRD patients and potentially alleviates existing healthcare disparities. ESRD patients who undergo MBS have unique complications to be aware of. The improvement in comorbidities may lead to superior posttransplant outcomes.
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Affiliation(s)
- Shauna Levy
- From the Divisions of Bariatric and Minimally Invasive Surgery (Levy, Attia, Galvani)
| | - Abdallah Attia
- From the Divisions of Bariatric and Minimally Invasive Surgery (Levy, Attia, Galvani)
| | - Mahmoud Omar
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA (Omar, Killackey)
| | - Nicole Langford
- Transplant Surgery (Langford, Vijay, Jeon, Paramesh), Department of Surgery, Tulane University School of Medicine, New Orleans, LA
| | - Adarsh Vijay
- Transplant Surgery (Langford, Vijay, Jeon, Paramesh), Department of Surgery, Tulane University School of Medicine, New Orleans, LA
| | - Hoonbae Jeon
- Transplant Surgery (Langford, Vijay, Jeon, Paramesh), Department of Surgery, Tulane University School of Medicine, New Orleans, LA
| | - Carlos Galvani
- From the Divisions of Bariatric and Minimally Invasive Surgery (Levy, Attia, Galvani)
| | - Mary T Killackey
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA (Omar, Killackey)
| | - Anil S Paramesh
- Transplant Surgery (Langford, Vijay, Jeon, Paramesh), Department of Surgery, Tulane University School of Medicine, New Orleans, LA
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43
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Fergie R, Maxwell AP, Cunningham EL. Latest advances in frailty in kidney transplantation: A narrative review. Transplant Rev (Orlando) 2024; 38:100833. [PMID: 38309184 DOI: 10.1016/j.trre.2024.100833] [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: 11/30/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/05/2024]
Abstract
Frailty is a clinical syndrome that is characterised by decline in multiple systems with associated decreased physiological reserve and ability to respond to stressor events. It is associated with greater healthcare burden. It is common in patients with end-stage renal disease (ESRD). Kidney transplantation is considered the optimal form of renal replacement therapy for suitable patients with ESRD. However, surgery and immunosuppression are physiological stresses that can disproportionately affect frail individuals. Frailty is emerging as a potentially important risk factor in patients waitlisted for kidney transplantation. Most of the published research to date in this area comes from a single transplant centre in the USA. Frailty, as measured using the Physical Frailty Phenotype (FP), is prevalent in waitlisted patients and has been associated with early hospital re-admission, prolonged length of stay, delayed graft function and increased mortality after kidney transplantation. However, although kidney transplantation is a substantial physiological stress to a patient's reserve, by restoring kidney function, kidney transplantation has also been shown to improve a patient's frailty status. The FP is the most studied tool in patients waitlisted for transplantation, but it has not been able to distinguish those whose frailty is improved by kidney transplantation. In summary, there remain significant gaps in knowledge and uncertainties as to how to effectively use existing frailty measures to inform decision-making around kidney transplantation. Further research is needed to address these important gaps in the literature.
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Affiliation(s)
- Ruth Fergie
- Centre for Public Health, Queen's University of Belfast, Belfast BT12 6AB, UK; Regional Nephrology Unit, Belfast City Hospital, Lisburn Road, BT9 7BA Belfast, UK.
| | - Alexander P Maxwell
- Centre for Public Health, Queen's University of Belfast, Belfast BT12 6AB, UK.
| | - Emma L Cunningham
- Centre for Public Health, Queen's University of Belfast, Belfast BT12 6AB, UK.
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Kittrakulrat J, Tiankanon K, Kerr SJ, Wattanatorn S, Udomkarnjananun S, Tungsanga S, Chaiteerakij R, Praditpornsilpa K, Eiam-Ong S, Avihingsanon Y, Tiranathanagul K, Vanichanan J, Townamchai N. A Randomized Controlled Study of Efficacy and Safety of Accelerated Versus Standard Hepatitis B Vaccination in Patients With Advanced CKD. Kidney Int Rep 2024; 9:853-862. [PMID: 38770057 PMCID: PMC11103956 DOI: 10.1016/j.ekir.2024.01.014] [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: 08/28/2023] [Revised: 12/19/2023] [Accepted: 01/08/2024] [Indexed: 05/22/2024] Open
Abstract
Introduction Hepatitis B virus (HBV) vaccination is crucial for seronegative patients with advanced chronic kidney disease (CKD) for protection during dialysis while preparing for transplantation. A standard regimen for HBV vaccination requires 24 weeks to be completed. An accelerated HBV vaccination regimen completed within 8 weeks has shown early effective seroconversion in healthcare workers. However, data for patients with advanced CKD are limited. Methods A randomized controlled trial was conducted in patients with advanced CKD (estimated glomerular filtration rate [GFR] <30 ml/min per 1.73 m2) and patients on dialysis. The patients were randomly assigned to either a standard HBV vaccination regimen (Engerix B; 40 μg at 0, 4, 8, and 24 weeks) or an accelerated regimen (40 μg at 0, 1, 4, and 8 weeks). The hepatitis B surface antibodies (anti-HBs) were measured at 12, 28, and 52 weeks. Seroconversion were defined as anti-HBs ≥10 IU/l. Results At 12 weeks, among the intention-to-treat (ITT) population of 133 participants (65 in the accelerated and 68 in the standard groups), the accelerated group demonstrated significantly higher rates of seroconversion (83.08% vs. 63.24%, P = 0.01). In the per-protocol (PP) analysis of 125 patients (62 in the standard and 63 in the accelerated groups), the accelerated group exhibited higher seroconversion rate compared with the standard group (85.71% vs. 69.35%, P = 0.03). At 28 and 52 weeks, the seroconversion rates were similar between the 2 groups. Conclusion In patients with advanced CKD, the accelerated HBV vaccination regimen demonstrated a significantly higher seroconversion rate at 12 weeks of vaccination. This finding suggests that the accelerated regimen is an effective option to achieve rapid seroconversion before initiating hemodialysis or before undergoing kidney transplantation.
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Affiliation(s)
- Jathurong Kittrakulrat
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Department of Medicine, King Prajadhipok Memorial Hospital, Chanthaburi, Thailand
| | | | - Stephen J. Kerr
- Biostatistics Excellence Center, Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- HIV-NAT, The Thai Red Cross AIDS Research Center, Bangkok, Thailand
- The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Salin Wattanatorn
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Excellence Center for Solid Organ Transplantation, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Suwasin Udomkarnjananun
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Excellence Center for Solid Organ Transplantation, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Renal Immunology and Renal Transplant Research Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Somkanya Tungsanga
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Division of Nephrology and Immunology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Alberta, Canada
| | - Roongruedee Chaiteerakij
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Center of Excellence for Innovation and Endoscopy in Gastrointestinal Oncology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Kearkiat Praditpornsilpa
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Hemodialysis center, Benchakitti park Hospital, Bangkok, Thailand
| | - Somchai Eiam-Ong
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Yingyos Avihingsanon
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Excellence Center for Solid Organ Transplantation, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Renal Immunology and Renal Transplant Research Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Khajohn Tiranathanagul
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Hemodialysis center, Benchakitti park Hospital, Bangkok, Thailand
| | - Jakapat Vanichanan
- Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Natavudh Townamchai
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Excellence Center for Solid Organ Transplantation, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Renal Immunology and Renal Transplant Research Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Wilk AS, Drewry KM, Escoffery C, Lea JP, Pastan SO, Patzer RE. Kidney Transplantation Contraindications: Variation in Nephrologist Practice and Training Vintage. Kidney Int Rep 2024; 9:888-897. [PMID: 38765582 PMCID: PMC11101805 DOI: 10.1016/j.ekir.2024.01.021] [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: 10/18/2023] [Revised: 12/08/2023] [Accepted: 01/08/2024] [Indexed: 05/22/2024] Open
Abstract
Introduction Health system leaders aim to increase access to kidney transplantation in part by encouraging nephrologists to refer more patients for transplant evaluation. Little is known about nephrologists' referral decisions and whether nephrologists with older training vintage weigh patient criteria differently (e.g., more restrictively). Methods Using a novel, iteratively validated survey of US-based nephrologists, we examined how nephrologists assess adult patients' suitability for transplant, focusing on established, important criteria: 7 clinical (e.g., overweight) and 7 psychosocial (e.g., insurance). We quantified variation in nephrologist restrictiveness-proportion of criteria interpreted as absolute or partial contraindications versus minor or negligible concerns-and tested associations between restrictiveness and nephrologist age (proxy for training vintage) in logistic regression models, controlling for nephrologist-level and practice-level factors. Results Of 144 nephrologists invited, 42 survey respondents (29% response rate) were 85% male and 54% non-Hispanic White, with mean age 52 years, and 67% spent ≥1 day/wk in outpatient dialysis facilities. Nephrologists interpreted patient criteria inconsistently; consistency was lower for psychosocial criteria (intraclass correlation coefficient: 0.28) than for clinical criteria (intraclass correlation coefficient: 0.43; P < 0.01). With each additional 10 years of age, nephrologists' odds of interpreting criteria restrictively (top tertile) doubled (adjusted odds ratio [aOR] 1.96; 95% confidence interval [CI]: 0.95-4.07), with marginal statistical significance. This relationship was significant when interpreting psychosocial criteria (aOR: 3.18; 95% CI: 1.16-8.71) but not when interpreting clinical criteria (aOR: 1.12; 95% CI: 0.52-2.38). Conclusion Nephrologists interpret evaluation criteria variably when assessing patient suitability for transplant. Guideline-based educational interventions could influence nephrologists' referral decision-making differentially by age.
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Affiliation(s)
- Adam S. Wilk
- Department of Health Policy and Management, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Kelsey M. Drewry
- Department of Surgery, Division of Transplantation, Emory University School of Medicine, Atlanta, Georgia, USA
- Health Services Research Center, Emory University, Atlanta, Georgia, USA
- Regenstrief Institute, Indianapolis, Indiana, USA
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Cam Escoffery
- Behavioral Social and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Janice P. Lea
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Stephen O. Pastan
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Emory University Transplant Center, Atlanta, Georgia, USA
| | - Rachel E. Patzer
- Department of Surgery, Division of Transplantation, Emory University School of Medicine, Atlanta, Georgia, USA
- Health Services Research Center, Emory University, Atlanta, Georgia, USA
- Regenstrief Institute, Indianapolis, Indiana, USA
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
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46
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Marcou M, Apel H, Wullich B, Hirsch-Koch K. [Kidney transplantation in children with complex urogenital malformations-what should be considered?]. UROLOGIE (HEIDELBERG, GERMANY) 2024; 63:351-356. [PMID: 38324034 DOI: 10.1007/s00120-024-02289-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/19/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND Congenital anomalies of the kidneys and urinary tract (CAKUT) are the most common cause of end-stage renal disease (ESRD) in children. Approximately one third of children with CAKUT have lower urinary tract dysfunction (LUTD). AIM This article highlights the important aspects that need to be considered in kidney transplantation of children with complex urogenital malformations. MATERIALS AND METHODS The paper reviews the existing literature regarding the evaluation, preparation, perioperative management, and follow-up of children with complex urogenital malformations and ESRD undergoing renal transplantation. RESULTS Comprehensive diagnostics are required before any pediatric kidney transplantation. If LUTD is suspected, voiding cystourethrography and a urodynamic examination should be performed. Treatment of symptomatic vesicoureterorenal reflux and LUTD is mandatory prior to pediatric kidney transplantation. Following successful kidney transplantation of children with congenital urogenital malformations, lifelong follow-up is required. Regular reevaluations of the bladder by means of urodynamic examinations are necessary. In patients following bladder augmentation with intestinal segments or urinary diversions in childhood, regular endoscopic examinations of the urinary tract are recommended to rule out secondary malignancy. CONCLUSION Treatment of children with complex urogenital malformations should be carried out in centers with appropriate expertise.
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Affiliation(s)
- Marios Marcou
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland.
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland.
| | - Hendrik Apel
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - Bernd Wullich
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - Karin Hirsch-Koch
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
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47
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Crawford B, Kizilbash S, Bhatia VP, Kulsum-Mecci N, Cannon S, Bartosh SM. Native nephrectomy in advanced pediatric kidney disease: indications, timing, and surgical approaches. Pediatr Nephrol 2024; 39:1041-1052. [PMID: 37632524 DOI: 10.1007/s00467-023-06117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/28/2023]
Abstract
In pediatric kidney failure, native kidneys may pose a risk to successful transplant outcomes. The indications and timing of native nephrectomy represent a controversial management decision. A lack of high-quality, outcomes-based data has prevented development of evidence-based guidelines for intervention. In this article, we review the published literature on medical indications for native nephrectomy and current knowledge gaps. In addition, we provide a surgical perspective regarding timing and approach.
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Affiliation(s)
- Brendan Crawford
- Department of Pediatrics, Division of Nephrology, University of Arkansas Medical Sciences, Little Rock, AR, USA.
| | - Sarah Kizilbash
- Department of Pediatrics, Division of Nephrology, University of Minnesota, Minneapolis, MN, USA
| | - Vinaya P Bhatia
- Department of Urology, Division of Pediatric Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Nazia Kulsum-Mecci
- Department of Pediatrics, Division of Nephrology, The University of Texas at Austin Dell Medical School, Austin, TX, USA
| | - Shannon Cannon
- Department of Urology, Division of Pediatric Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Sharon M Bartosh
- Department of Pediatrics, Division of Nephrology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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48
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Chukwu CA, Wu HH, Pullerits K, Garland S, Middleton R, Chinnadurai R, Kalra PA. Incidence, Risk Factors, and Outcomes of De Novo Malignancy following Kidney Transplantation. J Clin Med 2024; 13:1872. [PMID: 38610636 PMCID: PMC11012944 DOI: 10.3390/jcm13071872] [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: 02/15/2024] [Revised: 03/17/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Introduction: Post-transplant malignancy is a significant cause of morbidity and mortality following kidney transplantation often emerging after medium- to long-term follow-up. To understand the risk factors for the development of de novo post-transplant malignancy (DPTM), this study aimed to assess the incidence, risk factors, and outcomes of DPTM at a single nephrology centre over two decades. Methods: This retrospective cohort study included 963 kidney transplant recipients who underwent kidney transplantation between January 2000 and December 2020 and followed up over a median follow-up of 7.1 years (IQR 3.9-11.4). Cox regression models were used to identify the significant risk factors of DPTM development, the association of DPTM with graft survival, and mortality with a functioning graft. Results: In total, 8.1% of transplant recipients developed DPTM, and the DPTM incidence rate was 14.7 per 100 patient-years. There was a higher mean age observed in the DPTM group (53 vs. 47 years, p < 0.001). The most affected organ systems were genitourinary (32.1%), gastrointestinal (24.4%), and lymphoproliferative (20.5%). Multivariate Cox analysis identified older age at transplant (aHR 9.51, 95%CI: 2.60-34.87, p < 0.001) and pre-existing glomerulonephritis (aHR 3.27, 95%CI: 1.10-9.77, p = 0.03) as significant risk factors for DPTM. Older age was significantly associated with poorer graft survival (aHR 8.71, 95%CI: 3.77-20.20, p < 0.001). When age was excluded from the multivariate Cox model, DPTM emerged as a significant risk factor for poor survival (aHR 1.76, 95%CI: 1.17-2.63, p = 0.006). Conclusion: These findings underscore the need for tailored screening, prevention, and management strategies to address DPTM in an aging and immunosuppressed kidney transplant population.
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Affiliation(s)
- Chukwuma A. Chukwu
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK; (C.A.C.); (R.M.); (P.A.K.)
| | - Henry H.L. Wu
- Renal Research Laboratory, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney, Sydney, NSW 2065, Australia;
| | - Kairi Pullerits
- Faculty of Biology, Medicine & Health, The University of Manchester, Manchester M1 7HR, UK; (K.P.); (S.G.)
| | - Shona Garland
- Faculty of Biology, Medicine & Health, The University of Manchester, Manchester M1 7HR, UK; (K.P.); (S.G.)
| | - Rachel Middleton
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK; (C.A.C.); (R.M.); (P.A.K.)
| | - Rajkumar Chinnadurai
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK; (C.A.C.); (R.M.); (P.A.K.)
- Faculty of Biology, Medicine & Health, The University of Manchester, Manchester M1 7HR, UK; (K.P.); (S.G.)
| | - Philip A. Kalra
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK; (C.A.C.); (R.M.); (P.A.K.)
- Faculty of Biology, Medicine & Health, The University of Manchester, Manchester M1 7HR, UK; (K.P.); (S.G.)
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Zhang F, Liao J, Bai Y, Zhang Z, Huang L, Zhong Y. Effects of haemodiafiltration or haemofiltration compared with haemodialysis on prognosis in patients with end-stage renal disease: protocol an updated systematic review and meta-analysis of randomised trials with trial sequential analysis. BMJ Open 2024; 14:e080541. [PMID: 38521518 PMCID: PMC10961500 DOI: 10.1136/bmjopen-2023-080541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/29/2024] [Indexed: 03/25/2024] Open
Abstract
INTRODUCTION Haemodialysis is the most common treatment option for patients with life-sustaining end-stage kidney disease (ESKD). In recent years, haemodiafiltration or haemofiltration has been widely used in patients with ESKD, and there are still conflicting findings as to whether both are superior to traditional haemodialysis. This systematic review and meta-analysis were designed to determine whether haemodiafiltration or haemofiltration is more effective than haemodialysis in reducing all-cause mortality risk in patients with ESKD. METHODS AND ANALYSIS We will perform a systematic PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library and Scopus search, including studies published before September 2023. Randomised controlled trials will be included exploring the effects of haemodiafiltration or haemofiltration compared with haemodialysis on prognosis in patients with ESKD. Outcomes of interest include all-cause mortality, cardiovascular events, dialysis adequacy and adverse effects. The Cochrane Collaboration tools (ROB-2) will assess the bias risk. Available data will be used to calculate effect sizes. Heterogeneity between studies will be evaluated with I2. The trial sequential analysis will be used to eliminate false-positive results. The certainty of the evidence will be assessed using Grading of Recommendations, Assessment, Development and Evaluation criteria. ETHICS AND DISSEMINATION This systematic review and meta-analysis was deemed exempt from ethics review. Results will be disseminated through publication in peer-reviewed journals and research conferences. PROSPERO REGISTRATION NUMBER CRD42023464509.
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Affiliation(s)
- Fan Zhang
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jing Liao
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yan Bai
- Department of Cardiology, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zixuan Zhang
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liuyan Huang
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifei Zhong
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
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50
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Betjes MGH, Kho MML, Roodnat J, de Weerd AE. Transplant Candidates of 70+ Years Have Superior Survival If Receiving Pre-Emptively a Living Donor Kidney. J Clin Med 2024; 13:1853. [PMID: 38610618 PMCID: PMC11012907 DOI: 10.3390/jcm13071853] [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: 02/19/2024] [Revised: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Background: The number of kidney transplant recipients over 70 years of age is increasing but detailed data on patient and graft survival in the modern era of immune suppression are few. Methods: A single-center cohort of patients of 70 years and older (n = 349) at time of kidney transplantation from 2010-2020 were followed until January 2023. Results: The median age was 73 years with a median follow-up of 4.3 years. Fifty percent of recipients of a living donor kidney (LDK, n = 143) received their graft pre-emptively. Cumulative death-censored graft survival was excellent in the LDK group and reached 98% at 5 years vs. 85% in the deceased donor kidney (DDK) group. Primary non-function (38%) and rejection (43%) were the major causes of graft loss in the first year after DDK transplantation. Rejection-related graft loss was 4.6% during follow-up. Median recipient survival was superior in the subgroup of pre-emptively transplanted LDK patients compared to non-pre-emptively LDK transplanted patients (11.1 versus 6.2 years). Non-pre-emptively transplanted patients had a significantly increased incidence of infection (HR 3.81, 1.46-9.96) and cardiovascular-related causes of death (HR 3.35, 1.16-9.71). Pre-emptive transplantation was also associated with a significantly improved graft survival in the DDK recipients but this result was confounded by significantly better HLA matching and younger donor age in this group. Conclusions: Pre-emptive LDK transplantation in patients of 70 years or older confers superior graft and recipient survival.
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Affiliation(s)
- Michiel G. H. Betjes
- Rotterdam Transplantation Institute, Department of Nephrology & Transplantation, Erasmus Medical Center, 3015GD Rotterdam, The Netherlands; (M.M.L.K.); (J.R.); (A.E.d.W.)
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