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Chen Y, Churilla B, Ahn JB, Quint EE, Sandal S, Musunuru A, Pol RA, Hladek MD, Crews DC, Segev DL, McAdams-DeMarco M. Age Disparities in Access to First and Repeat Kidney Transplantation. Transplantation 2024; 108:845-853. [PMID: 37525348 PMCID: PMC10830888 DOI: 10.1097/tp.0000000000004747] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
BACKGROUND Evidence suggests that older patients are less frequently placed on the waiting list for kidney transplantation (KT) than their younger counterparts. The trends and magnitude of this age disparity in access to first KT and repeat KT (re-KT) remain unclear. METHODS Using the US Renal Data System, we identified 2 496 743 adult transplant-naive dialysis patients and 110 338 adult recipients with graft failure between 1995 and 2018. We characterized the secular trends of age disparities and used Cox proportional hazard models to compare the chances of listing and receiving first KT versus re-KT by age (18-64 y versus ≥65 y). RESULTS Older transplant-naive dialysis patients were less likely to be listed (adjusted hazard ratio [aHR] = 0.18; 95% confidence interval [CI], 0.17-0.18) and receive first KT (aHR = 0.88; 95% CI, 0.87-0.89) compared with their younger counterparts. Additionally, older patients with graft failure had a lower chance of being listed (aHR = 0.40; 95% CI, 0.38-0.41) and receiving re-KT (aHR = 0.76; 95% CI, 0.72-0.81). The magnitude of the age disparity in being listed for first KT was greater than that for re-KT ( Pinteraction < 0.001), and there were no differences in the age disparities in receiving first KT or re-KT ( Pinteraction = 0.13). Between 1995 and 2018, the age disparity in listing for first KT reduced significantly ( P < 0.001), but the age disparities in re-KT remained the same ( P = 0.16). CONCLUSIONS Age disparities exist in access to both first KT and re-KT; however, some of this disparity is attenuated among older adults with graft failure. As the proportion of older patients with graft failure rises, a better understanding of factors that preclude their candidacy and identification of appropriate older patients are needed.
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Affiliation(s)
- Yusi Chen
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, NY
| | - Bryce Churilla
- Department of Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - JiYoon B. Ahn
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Evelien E. Quint
- Division of Transplant Surgery, Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Amrusha Musunuru
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, NY
| | - Robert A. Pol
- Division of Transplant Surgery, Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Deidra C. Crews
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dorry L. Segev
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, NY
| | - Mara McAdams-DeMarco
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, NY
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Robert JT, Rajaram A, Fiset PO, Bernard C, Samanta R, Sandal S. Class V lupus nephritis recurrence with histologic resolution in a kidney transplant recipient on a pregnancy-adapted immunosuppression protocol: a lesson for the clinical nephrologist. J Nephrol 2024:10.1007/s40620-024-01920-z. [PMID: 38530604 DOI: 10.1007/s40620-024-01920-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 02/01/2024] [Indexed: 03/28/2024]
Affiliation(s)
- Jorane-Tiana Robert
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Ajay Rajaram
- Department of Pathology, McGill University Health Centre, Montreal, QC, Canada
| | - Pierre O Fiset
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Pathology, McGill University Health Centre, Montreal, QC, Canada
| | - Chantal Bernard
- Department of Pathology, McGill University Health Centre, Montreal, QC, Canada
| | - Ratna Samanta
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Royal Victoria Hospital- Glen Site D05-7160, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Royal Victoria Hospital- Glen Site D05-7160, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada.
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada.
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3
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Tanbek K, Yuksel F, Tekin S, Tekin C, Sandal S. Asprosin improved neuronal survival by suppressing apoptosis and enhancing the activity of the autophagy pathway in the MCAO model in rats. Eur Rev Med Pharmacol Sci 2024; 28:1937-1946. [PMID: 38497877 DOI: 10.26355/eurrev_202403_35608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
OBJECTIVE Cerebral ischemia (CI) is a condition in which metabolic stress increases when blood flow is interrupted in a part of the brain, resulting in oxygen and glucose deprivation. It is known that asprosin (Asp), secreted from adipose tissue during fasting, has an effect on some metabolic processes such as apoptosis, autophagy, and glucose metabolism. This study aimed to explain which of the cell death/survival Asp induces in the CI/reperfusion model. MATERIALS AND METHODS In the study, 48 male Wistar Albino rats were divided into 6 groups: Sham, CI, Asp+CI, CI+Asp, CI+Asp+3-MA, and Asp+CI+3-MA (n=48). CI was created using the intraluminal filament technique for 60 minutes, autophagy inhibitor 3-MA (15 mg/kg/day) and Asp (1 µg/kg/day) injections were administered 3 days before or 3 days during reperfusion. Beclin-1, ATG5, ATG7, p62, Bcl-2, Bax, active-caspase-3, and active-caspase-9 protein levels from brain tissues were determined by the Western-Blot method. The infarct area was determined by triphenyl tetrazolium chloride (TTC) staining. The Kruskal-Wallis' test was used to compare differences between groups. p<0.05 was considered statistically significant. RESULTS Compared to the Sham group, the increase in ischemic area and the decrease in Beclin-1, ATG-5, ATG-7, Bcl-2, Bax, active-caspase-3 and active-caspase-9 levels in the CI groups are statistically significant (p<0.05). The increase of Beclin-1, ATG-7, Bcl-2, and Bax levels in the Asp groups is statistically significant compared to the CI group (p<0.05). When Asp+CI groups and CI+Asp groups are compared, an increase in Beclin-1 levels in the Asp+CI group and the increase in Bcl-2, Bax, active-caspase-3/9 and ATG-5 levels in the CI+Asp groups are statistically significant (p<0.05). CONCLUSIONS Asp has protective and therapeutic effects against CI/R damage. While applying Asp before ischemia activates the autophagy pathway more, applying it after ischemia protects the neuronal death/survival balance by activating the apoptosis pathway more.
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Affiliation(s)
- K Tanbek
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey.
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Loban K, Fadel E, Nugus P, Przybylak-Brouillard A, Badenoch H, Robert JT, Bugeja A, Gill J, Fortin MC, Rodriguez C, Sandal S. Living kidney donors' health care needs, experiences, and perspectives across their entire donation trajectory: a semistructured, in-depth interview study. Kidney Int 2024; 105:251-258. [PMID: 38008162 DOI: 10.1016/j.kint.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/27/2023] [Accepted: 11/10/2023] [Indexed: 11/28/2023]
Affiliation(s)
- Katya Loban
- Metabolic Disorders and Complications Program (MEDIC), Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Elie Fadel
- Division of Nephrology, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Peter Nugus
- Institute of Health Sciences Education, McGill University, Montreal, Quebec, Canada
| | - Antoine Przybylak-Brouillard
- Metabolic Disorders and Complications Program (MEDIC), Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Institute of Health Sciences Education, McGill University, Montreal, Quebec, Canada
| | - Heather Badenoch
- Patient Partner, Canadian Donation and Transplantation Research Program, Edmonton, Alberta, Canada
| | - Jorane-Tiana Robert
- Metabolic Disorders and Complications Program (MEDIC), Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Ann Bugeja
- Division of Nephrology, Department of Medicine, the Ottawa Hospital, Ottawa, Ontario, Canada; Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Justin Gill
- Division of Nephrology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marie-Chantal Fortin
- Centre de recherche du Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Division of Nephrology, Department of Medicine, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Charo Rodriguez
- Patient Partner, Canadian Donation and Transplantation Research Program, Edmonton, Alberta, Canada
| | - Shaifali Sandal
- Metabolic Disorders and Complications Program (MEDIC), Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada; Division of Nephrology, Department of Medicine, McGill University, Montreal, Quebec, Canada.
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Loban K, Alam A, Sandal S. The need for better donor engagement and outreach with legacy living kidney donors. Clin Kidney J 2024; 17:sfad271. [PMID: 38186875 PMCID: PMC10768765 DOI: 10.1093/ckj/sfad271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Indexed: 01/09/2024] Open
Affiliation(s)
- Katya Loban
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
- Research Institute of the McGill University Health Centre, Montreal, Quebec
| | - Ahsan Alam
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
- Research Institute of the McGill University Health Centre, Montreal, Quebec
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
- Research Institute of the McGill University Health Centre, Montreal, Quebec
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec
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Loban K, Morgan R, Kute V, Bhalla AK, Sandal S. Are Differences in Living Kidney Donation Rates a Sex or a Gender Disparity? EXP CLIN TRANSPLANT 2024; 22:28-36. [PMID: 38385370 DOI: 10.6002/ect.mesot2023.l21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Sex-disaggregated data reveal significant disparities in living kidney donation, with more female than male living kidney donors in most countries and proportions over 60% in some countries. We summarize the present state of knowledge with respect to the potential drivers of this disparity and argue that it is primarily driven by gender-related factors. First, we present the differences between sex and gender and then proceed to summarize the potential medical reasons that have been proposed to explain why males are less likely to be living kidney donors than females, such as the higher prevalence of kidney failure in males. We then present counterarguments as to why biological sex differences are not enough to explain lower living kidney donation among males, such as a higher prevalence of chronic kidney disease among females, which could affect donation rates. We argue that gender differences likely provide a better explanation as to why there are more women than men living kidney donors and explore the role of economic and social factors, as well as gender roles and expectations, in affecting living kidney donation among both men and women. We conclude with the need for a gender analysis to explain this complex psychosocial phenomenon in living kidney donation.
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Affiliation(s)
- Katya Loban
- From the Research Institute of the McGill University Health Centre and the Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
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7
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Tanbek K, Yilmaz U, Gul S, Koç A, Gul M, Sandal S. Effects of glucagon as a neurohormone on the central nervous system and glucose homeostasis. Eur Rev Med Pharmacol Sci 2024; 28:163-179. [PMID: 38235868 DOI: 10.26355/eurrev_202401_34902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
OBJECTIVE This study aimed to elucidate the possible effects of the acute/long-term infusion of glucagon in the brain as the regulatory role on the endocrine secretions of the pancreas. MATERIALS AND METHODS Ninety male Wistar albino rats were divided as Control, artificial Cerebrospinal Fluid (aCSF) (120 min), Glucagon (120 min), pancreatic denervation (PD)+aCSF (120 min), PD+Glucagon (120 min), aCSF (7 days), Glucagon (7 days), PD+aCSF (7 days) and PD+Glucagon (7 days). Glucagon and solvent (aCSF) were administered after pancreatic denervation (PD) by Hamilton syringe and osmotic mini pump (1 µg/10 µl/min) in the third ventricle of the brain. RESULTS Acute intracerebroventricular (icv) administration of glucagon resulted in an elevation of glucagon levels and a concurrent reduction in blood glucose levels. Furthermore, in both the PD+aCSF (7 days) and PD+Glucagon (7 days) groups, there was a notable decrease in propiomelanocortin (POMC) and agouti-related protein (AgRP). Significant changes were observed in feed consumption and body weight, as well as pancreatic glucagon levels, with a simultaneous decrease in insulin levels in the PD (7 days), Glucagon (7 days), and PD+Glucagon (7 days) groups. These alterations were statistically significant when compared to the control group (p<0.05). CONCLUSIONS The research outcomes established that pancreas-secreted glucagon functions as a neurohormone within the brain, activating central pathways linked to blood glucose regulation. The presence of glucagon led to a decrease in POMC levels. Surprisingly, this reduction in POMC resulted in the suppression of AgRP. Contrary to expectations, the suppression of AgRP led to an increase in food intake rather than a decrease. As already highlighted in the results section, it was emphasized that POMC may play a more significant role than AgRP in influencing feeding behavior.
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Affiliation(s)
- K Tanbek
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey.
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8
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Slominska A, Kinsella EA, Sandal S. Shifting the focus from managing the failing kidney allograft to supporting the patient with a failing kidney allograft. Kidney Int 2023; 104:1227. [PMID: 37981432 DOI: 10.1016/j.kint.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/06/2023] [Indexed: 11/21/2023]
Affiliation(s)
- Anita Slominska
- Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Institute of Health Sciences Education, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Elizabeth Anne Kinsella
- Institute of Health Sciences Education, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Shaifali Sandal
- Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Nephrology, Department of Medicine, McGill University, Montreal, Quebec, Canada.
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9
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Sandal S, Fadel E, Trinh E, Gagnon M, Herrera-Gayol A, Cantarovich M. The Evolution of Communication and Education Strategies of Canadian Transplant Programs During the Pandemic. Prog Transplant 2023; 33:277-279. [PMID: 37464808 PMCID: PMC10357327 DOI: 10.1177/15269248231189865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Elie Fadel
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Emilie Trinh
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Michael Gagnon
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | | | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
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Abstract
Every year, over 30,000 healthy individuals globally donate a kidney to a patient with kidney failure. These living kidney donors are at higher risk of some medical complications post-donation when compared with matched controls. Although the absolute risk of these complications is low, appropriate long-term care is essential to allow early detection and timely interventions. Some transplant centers follow living donors long-term, but many recommend that donors regularly see a primary care practitioner post-donation. However, primary care is currently not integrated with transplant centers, and the two often work in silos with little to no channels of communication with each other. As this model of care is suboptimal, existing evidence suggests that post-donation care and follow-up are inadequate. We argue for an integrated model of living donor care with stronger continuity and coordination between primary care and transplant centers that are developed with the input of all relevant stakeholders.
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Affiliation(s)
- Katya Loban
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Canada
- Research Institute of the McGill University Health Centre, Metabolic Disorders and Complications (MeDiC) Program, Montreal, Canada
| | - Jorane-Tiana Robert
- Research Institute of the McGill University Health Centre, Metabolic Disorders and Complications (MeDiC) Program, Montreal, Canada
| | - Ahsan Alam
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Canada
- Research Institute of the McGill University Health Centre, Metabolic Disorders and Complications (MeDiC) Program, Montreal, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Canada
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Canada
- Research Institute of the McGill University Health Centre, Metabolic Disorders and Complications (MeDiC) Program, Montreal, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Canada
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11
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Smyth B, Pippias M, Sandal S, Fung WWS, Ethier I, Kelly D, Hafiz E, Bagasha P, Onu UC, Bilchut WH, Bajpai D, Jha V, De Chiara L. Green nephrology: a series of mini reviews on minimizing the environmental impact of kidney health care. Kidney Int 2023; 104:7-11. [PMID: 37349060 DOI: 10.1016/j.kint.2023.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 03/31/2023] [Indexed: 06/24/2023]
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Sandal S, Cantarovich M, Cardinal H, Ramankumar AV, Senecal L, Collette S, Saw CL, Paraskevas S, Tchervenkov J. Predicting Long-term Outcomes in Deceased Donor Kidney Transplant Recipients Using Three Short-term Graft Characteristics. Kidney360 2023; 4:e809-e816. [PMID: 37211638 PMCID: PMC10371380 DOI: 10.34067/kid.0000000000000154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/28/2023] [Indexed: 05/23/2023]
Abstract
Key Points Delayed graft function is not an ideal measure of graft function, yet is used to assess risk in kidney transplantation. We propose a model that combines it with two other measures of 90-day graft function to identify recipients at incremental risk of inferior long-term outcomes. Background Delayed graft function (DGF) in kidney transplant recipients is used to determine graft prognosis, make organ utilization decisions, and as an important end point in clinical trials. However, DGF is not an ideal measure of graft function. We aimed to develop and validate a model that provides incremental risk assessment for inferior patient and graft outcomes. Methods We included adult kidney-only deceased donor transplant recipients from 1996 to 2016. In addition to DGF, two short-term measures were used to assess risk: renal function recovery <100% (attaining half the donor's eGFR) and recipient's 90-day eGFR <30. Recipients were at no, low, moderate, or high risk if they met zero, one, two, or all criteria, respectively. Cox proportional hazard models were used to assess the independent relationship between exposure and death-censored graft failure (DCGF) and mortality. Results Of the 792 eligible recipients, 24.5% experienced DGF, 40.5% had renal function recovery <100%, and 6.9% had eGFR <30. Over a median follow-up of 7.3 years, the rate of DCGF was 18.7% and mortality was 25.1%. When compared with recipients at no risk, those at low, moderate, and high risk were noted to have an increase in risk of DCGF (adjusted hazard ratio [aHR], 1.53; 95% confidence interval [CI], 1.03 to 2.27; aHR, 2.84; 95% CI, 1.68 to 4.79; aHR, 15.46; 95% CI, 8.04 to 29.71) and mortality (aHR, 1.16; 95% CI, 0.84 to 1.58; aHR, 1.85; 95% CI, 1.13 to 3.07; aHR, 2.66; 95% CI, 1.19 to 5.97). When using a hierarchical approach, each additional exposure predicted the risk of DCGF better than DGF alone and 100 random bootstrap replications supported the internal validity of the risk model. In an external validation cohort deemed to be at lower risk of DCGF, similar nonsignificant trends were noted. Conclusion We propose a risk model that provides an incremental assessment of recipients at higher risk of adverse long-term outcomes than DGF alone. This can help advance the field of risk assessment in transplantation and inform therapeutic decision making in patients at the highest spectrum of inferior outcomes.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Multiorgan Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, Quebec, Canada
- Division of Experimental Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Multiorgan Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Heloise Cardinal
- Department of Medicine, University of Montreal, Montreal, Quebec, Canada
| | | | - Lynne Senecal
- Department of Medicine, Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada
| | - Suzon Collette
- Department of Medicine, Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada
| | - Chee Long Saw
- Multiorgan Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, Quebec, Canada
- Division of Hematology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Steven Paraskevas
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Multiorgan Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, Quebec, Canada
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Jean Tchervenkov
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Multiorgan Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, Quebec, Canada
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada
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Lasry D, Cantarovich M, Sandal S. Sequelae of Cryptococcal-Immune Reconstitution Inflammatory Syndrome in a Kidney Transplant Recipient: A Case Report. Can J Kidney Health Dis 2023; 10:20543581231172399. [PMID: 37163140 PMCID: PMC10164251 DOI: 10.1177/20543581231172399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/14/2023] [Indexed: 05/11/2023] Open
Abstract
Rationale Cryptococcal-immune reconstitution inflammatory syndrome (C-IRIS) is a rare but recognized clinical entity in solid organ transplant recipients, though its clinical course and sequelae remain largely poorly described. Presenting Concerns of the Patient We present the case of a kidney transplant recipient who presented with headache and fever. A cerebrospinal fluid analysis was performed and found to be compatible with cryptococcal meningitis. After down titration of immunosuppression and antifungal initiation, the patient initially improved. Weeks later, they experienced a sudden deterioration in mental status, prompting admission to the intensive care unit (ICU). Diagnosis This deterioration was attributed to C-IRIS, which developed following rapid de-escalation of immunosuppression in response to the diagnosis of cryptococcal meningitis. Interventions The initial episode of C-IRIS responded well to high-dose steroids; however, maintenance immunosuppression was not increased. Outcomes Within 2 months, the patient presented again to the hospital with a pulmonary infiltrate and multifocal ischemic strokes. Novel Findings We argue this to be a case of relapsing multisystem C-IRIS, thus expanding the known spectrum of manifestations of C-IRIS in renal transplant recipients. We propose that following the diagnosis of C-IRIS, maintenance immunosuppression be escalated to avoid the risk of relapse and inflammatory-mediated organ dysfunction.
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Affiliation(s)
- David Lasry
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, Royal Victoria Hospital, McGill University Health Centre, Montreal, QC, Canada
- The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Multi-organ Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, Royal Victoria Hospital, McGill University Health Centre, Montreal, QC, Canada
- The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Multi-organ Transplant Program, Departments of Medicine and Surgery, McGill University Health Centre, Montreal, QC, Canada
- Division of Experimental Medicine, McGill University Health Centre, Montreal, QC, Canada
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Loban K, Horton A, Robert JT, Hales L, Parajuli S, McAdams-DeMarco M, Sandal S. Perspectives and experiences of kidney transplant recipients with graft failure: A systematic review and meta-synthesis. Transplant Rev (Orlando) 2023; 37:100761. [PMID: 37120965 DOI: 10.1016/j.trre.2023.100761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND Kidney transplant recipients with graft failure are a rapidly rising cohort of patients who experience high morbidity, mortality, and fragmented transitions of care between transplant and dialysis teams. Current approaches to improving care focus on medical and surgical interventions, increasing re-transplantation, and improving coordination between treating teams with little understanding of patient needs and perspectives. METHODS We undertook a systematic literature review of personal experiences of patients with graft failure. Six electronic and five grey literature databases were searched systematically. Of 4664 records screened 43 met the inclusion criteria. Six empirical qualitative studies and case studies were included in the final analysis. Thematic synthesis was used to combine data that included the perspectives of 31 patients with graft failure and 9 caregivers. RESULTS Using the Transition Model, we isolated three interconnected phases as patients transition through graft failure: shattering of lifestyle and plans associated with a successful transplant; physical and psychological turbulence; and re-alignment by learning adaptive strategies to move forward. Critical factors affecting coping included multi-disciplinary healthcare approaches, social support, and individual-level factors. While clinical transplant care was evaluated positively, participants identified gaps in the provision of information and psychosocial support related to graft failure. Graft failure had a profound impact on caregivers especially when they were living donors. CONCLUSIONS Our review reports patient-identified priorities for improving care and can help inform research and guideline development that strives to improve the care of patients with graft failure.
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Affiliation(s)
- Katya Loban
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Anna Horton
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Jorane-Tiana Robert
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Lindsay Hales
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Sandesh Parajuli
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Mara McAdams-DeMarco
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, NY, USA
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada; Division of Nephrology, Department of Medicine, McGill University, Montreal, Quebec, Canada.
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15
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Horton A, Loban K, Nugus P, Fortin MC, Gunaratnam L, Knoll G, Mucsi I, Chaudhury P, Landsberg D, Paquet M, Cantarovich M, Sandal S. Health System-Level Barriers to Living Donor Kidney Transplantation: Protocol for a Comparative Case Study Analysis. JMIR Res Protoc 2023; 12:e44172. [PMID: 36881454 PMCID: PMC10031444 DOI: 10.2196/44172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Living donor kidney transplantation (LDKT) is the best treatment option for patients with kidney failure and offers significant medical and economic advantages for both patients and health systems. Despite this, rates of LDKT in Canada have stagnated and vary significantly across Canadian provinces, the reasons for which are not well understood. Our prior work has suggested that system-level factors may be contributing to these differences. Identifying these factors can help inform system-level interventions to increase LDKT. OBJECTIVE Our objective is to generate a systemic interpretation of LDKT delivery across provincial health systems with variable performance. We aim to identify the attributes and processes that facilitate the delivery of LDKT to patients, and those that create barriers and compare these across systems with variable performance. These objectives are contextualized within our broader goal of increasing rates of LDKT in Canada, particularly in lower-performing provinces. METHODS This research takes the form of a qualitative comparative case study analysis of 3 provincial health systems in Canada that have high, moderate, and low rates of LDKT performance (the percentage of LDKT to all kidney transplantations performed). Our approach is underpinned by an understanding of health systems as complex adaptive systems that are multilevel and interconnected, and involve nonlinear interactions between people and organizations, operating within a loosely bounded network. Data collection will comprise semistructured interviews, document reviews, and focus groups. Individual case studies will be conducted and analyzed using inductive thematic analysis. Following this, our comparative analysis will operationalize resource-based theory to compare case study data and generate explanations for our research question. RESULTS This project was funded from 2020 to 2023. Individual case studies were carried out between November 2020 and August 2022. The comparative case analysis will begin in December 2022 and is expected to conclude in April 2023. Submission of the publication is projected for June 2023. CONCLUSIONS By investigating health systems as complex adaptive systems and making comparisons across provinces, this study will identify how health systems can improve the delivery of LDKT to patients with kidney failure. Our resource-based theory framework will provide a granular analysis of the attributes and processes that facilitate or create barriers to LDKT delivery across multiple organizations and levels of practice. Our findings will have practice and policy implications and help inform transferrable competencies and system-level interventions conducive to increasing LDKT. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/44172.
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Affiliation(s)
- Anna Horton
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Katya Loban
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Peter Nugus
- Department of Family Medicine and the Institute of Health Sciences Education, McGill University, Montreal, QC, Canada
| | - Marie-Chantal Fortin
- Centre de recherche du Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Division of Nephrology, Department of Medicine, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Lakshman Gunaratnam
- Matthew Mailing Centre for Translational Transplant Studies, Lawson Health Research Institute, London Health Sciences Centre, London, ON, Canada
- Division of Nephrology, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Greg Knoll
- Division of Nephrology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Istvan Mucsi
- Ajmera Transplant Center and Division of Nephrology, University Health Network, Toronto, ON, Canada
- Division of Nephrology, University of Toronto, Toronto, ON, Canada
| | - Prosanto Chaudhury
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - David Landsberg
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Michel Paquet
- Centre de recherche du Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Division of Nephrology, Department of Medicine, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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16
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Sandal S, Ahn JB, Chen Y, Massie AB, Clark-Cutaia MN, Wu W, Cantarovich M, Segev DL, McAdams-DeMarco MA. Trends in the survival benefit of repeat kidney transplantation over the past 3 decades. Am J Transplant 2023; 23:666-672. [PMID: 36731783 DOI: 10.1016/j.ajt.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/19/2023] [Indexed: 02/01/2023]
Abstract
Repeat kidney transplantation (re-KT) is the preferred treatment for patients with graft failure. Changing allocation policies, widening the risk profile of recipients, and improving dialysis care may have altered the survival benefit of a re-KT. We characterized trends in re-KT survival benefit over 3 decades and tested whether it differed by age, race/ethnicity, sex, and panel reactive assay (PRA). By using the Scientific Registry of Transplant Recipient data, we identified 25 419 patients who underwent a re-KT from 1990 to 2019 and 25 419 waitlisted counterfactuals from the same year with the same waitlisted time following graft failure. In the adjusted analysis, a re-KT was associated with a lower risk of death (adjusted hazard ratio [aHR] = 0.63; 95% confidence interval [CI], 0.61-0.65). By using the 1990-1994 era as a reference (aHR = 0.77; 95% CI, 0.69-0.85), incremental improvements in the survival benefit were noted (1995-1999: aHR = 0.72; 95% CI, 0.67-0.78: 2000-2004: aHR = 0.59; 95% CI, 0.55-0.63: 2005-2009: aHR = 0.59; 95% CI, 0.56-0.63: 2010-2014: aHR = 0.57; 95% CI, 0.53-0.62: 2015-2019: aHR = 0.64; 95% CI, 0.57-0.73). The survival benefit of a re-KT was noted in both younger (age = 18-64 years: aHR = 0.63; 95% CI, 0.61-0.65) and older patients (age ≥65 years: aHR = 0.66; 95% CI, 0.58-0.74; Pinteraction = .45). Patients of all races/ethnicities demonstrated similar benefits with a re-KT. However, it varied by the sex of the recipient (female patients: aHR = 0.60; 95% CI, 0.56-0.63: male patients: aHR = 0.66; 95% CI, 0.63-0.68; Pinteraction = .004) and PRA (0-20: aHR = 0.69; 95% CI, 0.65-0.74: 21-80: aHR = 0.61; 95% CI, 0.57-0.66; Pinteraction = .02; >80: aHR = 0.57; 95% CI, 0.53-0.61; Pinteraction< .001). Our findings support the continued practice of a re-KT and efforts to overcome the medical, immunologic, and surgical challenges of a re-KT.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada; Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
| | - JiYoon B Ahn
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yusi Chen
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA
| | - Allan B Massie
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA
| | - Maya N Clark-Cutaia
- Department of Nursing, NYU Rory Meyers College of Nursing, New York, New York, USA
| | - Wenbo Wu
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada; Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Dorry L Segev
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA
| | - Mara A McAdams-DeMarco
- Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA; Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
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17
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Horton A, Loban K, Fortin MC, Charbonneau S, Nugus P, Pâquet MR, Chaudhury P, Cantarovich M, Sandal S. Living Donor Kidney Transplantation in Quebec: A Qualitative Case Study of Health System Barriers and Facilitators. Can J Kidney Health Dis 2023; 10:20543581221150675. [PMID: 36704234 PMCID: PMC9871975 DOI: 10.1177/20543581221150675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/05/2022] [Indexed: 01/21/2023] Open
Abstract
Background Patients with kidney failure represent a major public health burden, and living donor kidney transplantation (LDKT) is the best treatment option for these patients. Current work to optimize LDKT delivery to patients has focused on microlevel interventions and has not addressed interdependencies with meso and macro levels of practice. Objective We aimed to learn from a health system with historically low LDKT performance to identify facilitators and barriers to LDKT. Our specific aims were to understand how LDKT delivery is organized through interacting macro, meso, and micro levels of practice and identify what attributes and processes of this health system facilitate the delivery of LDKT to patients with kidney failure and what creates barriers. Design We conducted a qualitative case study, applying a complex adaptive systems approach to LDKT delivery, that recognizes health systems as being made up of dynamic, nested, and interconnected levels, with the patient at its core. Setting The setting for this case study was the province of Quebec, Canada. Participants Thirty-two key stakeholders from all levels of the health system. This included health care professionals, leaders in LDKT governance, living kidney donors, and kidney recipients. Methods Semi-structured interviews with 32 key stakeholders and a document review were undertaken between February 2021 and December 2021. Inductive thematic analysis was used to generate themes. Results Overall, we identified strong links between system attributes and processes and LDKT delivery, and more barriers than facilitators were discerned. Barriers that undermined access to LDKT included fragmented LDKT governance and expertise, disconnected care practices, limited resources, and regional inequities. Some were mitigated to an extent by the intervention of a program launched in 2018 to increase LDKT. Facilitators driven by the program included advocacy for LDKT from individual member(s) of the care team, dedicated resources, increased collaboration, and training opportunities that targeted LDKT delivery at multiple levels of practice. Limitations Delineating the borders of a "case" is a challenge in case study research, and it is possible that some perspectives may have been missed. Participants may have produced socially desirable answers. Conclusions Our study systematically investigated real-world practices as they operate throughout a health system. This novel approach has cross-disciplinary methodological relevance, and our findings have policy implications that can help inform multilevel interventions to improve LDKT.
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Affiliation(s)
- Anna Horton
- Research Institute of the McGill
University Health Centre, Montreal, QC, Canada
| | - Katya Loban
- Research Institute of the McGill
University Health Centre, Montreal, QC, Canada,Division of Nephrology, Department of
Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Marie-Chantal Fortin
- Centre de recherche du Centre
hospitalier de l’Université de Montréal, QC, Canada,Division of Nephrology, Department of
Medicine, Centre hospitalier de l’Université de Montréal, QC, Canada
| | | | - Peter Nugus
- Department of Family Medicine and
Institute of Health Sciences Education, McGill University, Montreal, QC,
Canada
| | - Michel R. Pâquet
- Centre de recherche du Centre
hospitalier de l’Université de Montréal, QC, Canada,Division of Nephrology, Department of
Medicine, Centre hospitalier de l’Université de Montréal, QC, Canada
| | - Prosanto Chaudhury
- Research Institute of the McGill
University Health Centre, Montreal, QC, Canada,Department of Surgery, McGill
University Health Centre, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Research Institute of the McGill
University Health Centre, Montreal, QC, Canada,Division of Nephrology, Department of
Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Shaifali Sandal
- Research Institute of the McGill
University Health Centre, Montreal, QC, Canada,Division of Nephrology, Department of
Medicine, McGill University Health Centre, Montreal, QC, Canada,Shaifali Sandal, Research Institute of the
McGill University Health Centre, Royal Victoria Hospital Glen Site, D05-7176,
1001 boul Decarie, Montreal, QC H4A 3J1, Canada.
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18
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Horton A, Loban K, Nugus P, Fortin M, Gunaratnam L, Knoll G, Mucsi I, Chaudhury P, Landsberg D, Paquet M, Cantarovich M, Sandal S. Health System–Level Barriers to Living Donor Kidney Transplantation: Protocol for a Comparative Case Study Analysis (Preprint).. [DOI: 10.2196/preprints.44172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
Abstract
BACKGROUND
Living donor kidney transplantation (LDKT) is the best treatment option for patients with kidney failure and offers significant medical and economic advantages for both patients and health systems. Despite this, rates of LDKT in Canada have stagnated and vary significantly across Canadian provinces, the reasons for which are not well understood. Our prior work has suggested that system-level factors may be contributing to these differences. Identifying these factors can help inform system-level interventions to increase LDKT.
OBJECTIVE
Our objective is to generate a systemic interpretation of LDKT delivery across provincial health systems with variable performance. We aim to identify the attributes and processes that facilitate the delivery of LDKT to patients, and those that create barriers and compare these across systems with variable performance. These objectives are contextualized within our broader goal of increasing rates of LDKT in Canada, particularly in lower-performing provinces.
METHODS
This research takes the form of a qualitative comparative case study analysis of 3 provincial health systems in Canada that have high, moderate, and low rates of LDKT performance (the percentage of LDKT to all kidney transplantations performed). Our approach is underpinned by an understanding of health systems as complex adaptive systems that are multilevel and interconnected, and involve nonlinear interactions between people and organizations, operating within a loosely bounded network. Data collection will comprise semistructured interviews, document reviews, and focus groups. Individual case studies will be conducted and analyzed using inductive thematic analysis. Following this, our comparative analysis will operationalize resource-based theory to compare case study data and generate explanations for our research question.
RESULTS
This project was funded from 2020 to 2023. Individual case studies were carried out between November 2020 and August 2022. The comparative case analysis will begin in December 2022 and is expected to conclude in April 2023. Submission of the publication is projected for June 2023.
CONCLUSIONS
By investigating health systems as complex adaptive systems and making comparisons across provinces, this study will identify how health systems can improve the delivery of LDKT to patients with kidney failure. Our resource-based theory framework will provide a granular analysis of the attributes and processes that facilitate or create barriers to LDKT delivery across multiple organizations and levels of practice. Our findings will have practice and policy implications and help inform transferrable competencies and system-level interventions conducive to increasing LDKT.
INTERNATIONAL REGISTERED REPORT
DERR1-10.2196/44172
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19
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Sandal S, Yao H, Alam A, Arienzo DD, Baran D, Cantarovich M. Granulocyte colony-stimulating factor with or without immunosuppression reduction in neutropenic kidney transplant recipients. Clin Transplant 2022; 36:e14766. [PMID: 35822347 DOI: 10.1111/ctr.14766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/21/2022] [Accepted: 06/28/2022] [Indexed: 11/26/2022]
Abstract
Neutropenia post-kidney transplantation is associated with adverse graft and patient outcomes. We aimed to analyze the effect of granulocyte colony-stimulating factor (G-CSF) use with and without immunosuppression reduction on graft outcomes in neutropenic recipients. In this retrospective cohort study, we identified 120 recipients with neutropenia, within the first-year post-transplant. Of these, 45.0% underwent no intervention, 17.5% had immunosuppression reduced, 18.3% were only given G-CSF, and 19.2% had both interventions. Overall, 61 patients experienced the composite outcome of de-novo DSA, biopsy-proven acute rejection, and all-cause graft failure and the cumulative incidence of this outcome did not vary by any of the four interventions (p = 0.93). When stratifying the cohort by G-CSF use alone, those who received G-CSF were more likely to have had severe neutropenia (<500/mm3 :51.1%vs.12.0%, p<0.001), and immunosuppression reduction (51.1%vs.28.0%, p = 0.003). However, the composite outcome was not different in the G-CSF and no G-CSF cohort (53.3%vs.49.3%, p = 0.67), and in a multivariate model, G-CSF use was not associated with this outcome (aHR = 1.18, 95%CI:0.61-2.30). However, a trend towards higher DSA production was noted in the G-CSF cohort (87.5%vs.62.2%) and this observation warrants prospective evaluation. Overall, we conclude that G-CSF use with or without immunosuppression reduction was not associated with graft outcomes. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Han Yao
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Ahsan Alam
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - David D Arienzo
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Dana Baran
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
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20
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Sandal S, Ahn JB, Cantarovich M, Chu NM, Segev DL, McAdams-DeMarco MA. Evolving Trends in Risk Profiles and Outcomes in Older Adults Undergoing Kidney Retransplantation. Transplantation 2022; 106:1051-1060. [PMID: 34115459 PMCID: PMC8636546 DOI: 10.1097/tp.0000000000003842] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND In older adults (≥65), access to and outcomes following kidney transplantation (KT) have improved over the past 3 decades. It is unknown if there were parallel trends in re-KT. We characterized the trends, changing landscape, and outcomes of re-KT in older adults. METHODS Among the 44,149 older kidney-only recipients (1995-2016) in the Scientific Registry of Transplant Recipients, we identified 1743 who underwent re-KT. We analyzed trends and outcomes (mortality, death-censored graft failure [DCGF]) by eras (1995-2002, 2003-2014, and 2015-2016) that were defined by changes to the expanded criteria donors and Kidney Donor Profile Index policies. RESULTS Among all older kidney-only recipients during 1995-2002, 2003-2014, 2015-2016 the proportion that were re-KTs increased from 2.7% to 4.2% to 5.7%, P < 0.001, respectively. Median age at re-KT (67-68-68, P = 0.04), years on dialysis after graft failure (1.4-1.5-2.2, P = 0.003), donor age (40.0-43.0-43.5, P = 0.04), proportion with panel reactive antibody 80-100 (22.0%-32.7%-48.7%, P < 0.001), and donation after circulatory death (1.1%-13.4%-19.5%, P < 0.001) have increased. Despite this, the 3-y cumulative incidence for mortality (22.3%-19.1%-11.5%, P = 0.002) and DCGF (13.3%-10.0%-5.1%, P = 0.01) decreased over time. Compared with deceased donor retransplant recipients during 1995-2002, those during 2003-2014 and 2015-2016 had lower mortality hazard (aHR = 0.78, 95% confidence interval, 0.63-0.86 and aHR = 0.55, 95% confidence interval, 0.35-0.86, respectively). These declines were noted but not significant for DCGF and in living donor re-KTs. CONCLUSIONS In older retransplant recipients, outcomes have improved significantly over time despite higher risk profiles; yet they represent a fraction of the KTs performed. Our results support increasing access to re-KT in older adults; however, approaches to guide the selection and management in those with graft failure need to be explored.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
- Research Institute of the McGill University Health Centre, Montreal, Quebec
| | - JiYoon B. Ahn
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
- Research Institute of the McGill University Health Centre, Montreal, Quebec
| | - Nadia M. Chu
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Dorry L. Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Mara A. McAdams-DeMarco
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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21
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Azzouz S, Chen A, Ekmekjian T, Cantarovich M, Baran D, Sandal S. The role of renal resistive index as a prognostic tool in kidney transplantation: a systematic review. Nephrol Dial Transplant 2022; 37:1552-1565. [DOI: 10.1093/ndt/gfac149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Indexed: 11/14/2022] Open
Abstract
ABSTRACT
Background
In kidney transplant recipients (KTRs), observational data have reported conflicting findings about the utility of renal resistive index (RRI) in determining outcomes. We aimed to synthesize the current literature and determine the prognostic role of RRI in KTRs.
Methods
We conducted a systematic review to assess the role of RRI in predicting death, graft failure, graft function, and proteinuria. Of the 934 titles/abstracts reviewed, 26 studies were included. There was significant heterogeneity in RRI measurements and thresholds as well as in analytic methods and a meta-analysis could not be performed.
Results
All included studies were observational and included 7049 KTRs. Eight studies analyzed death, of which five reported a significant association with higher RRI. In the remaining three, small sample sizes and lower/multiple RRI thresholds may have limited detection of a statistically significant difference. Three studies investigated all-cause graft failure and an association with RRI was reported but varied by time of RRI measurement. Three out of five studies that analyzed a composite of patient and graft outcomes reported an association with RRI. Evidence analyzing death-censored graft failure, graft failure (unclear if death-censored or all-cause), measures of graft function, and proteinuria were conflicting. Most studies had a moderate to high risk of bias.
Conclusions
RRI likely has a prognostic role in predicting patient outcomes, reflecting patient systemic vascular disease burden rather than graft hemodynamics. Since cardiovascular diseases are a major cause of death and graft loss, RRI may be explored as a non-invasive tool to risk stratify KTRs.
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Affiliation(s)
- Safaa Azzouz
- Faculty of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Anjellica Chen
- Faculty of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Taline Ekmekjian
- Medical Libraries, McGill University Health Centre, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Dana Baran
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
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22
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Sandal S. How to Embark Upon Leadership in Transplantation and Potential Pathways to Consider. EXP CLIN TRANSPLANT 2022; 20:89-94. [PMID: 35384815 DOI: 10.6002/ect.mesot2021.o39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Physician engagement in leadership leads to better delivery of care to patients and is crucial for the advancement of knowledge, understanding, and wisdom in transplantation. Despite this, many physicians do not think of themselves as leaders and not much is offered in the form of training and education in leadership. Those who want to embark on a path to leadership sometimes do not know how to engage and where to start. This paper proposes 6 potential pathways to consider while embarking on leadership in transplantation. These are clinical innovation, research, education, administration, advocacy, and ethics. The profiles of some of the major leaders in the field of transplantation are highlighted to exemplify them. In addition, some other emerging pathways are presented. These proposed pathways are meant to serve as a guide on where to start but are interdependent. Last, how to choose from these options is described using techniques such as self-reflection, mentorship, peer engagement, and participation in leadership programs.
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Affiliation(s)
- Shaifali Sandal
- From the Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,From the Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
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Horton A, Nugus P, Fortin MC, Landsberg D, Cantarovich M, Sandal S. Health system barriers and facilitators to living donor kidney transplantation: a qualitative case study in British Columbia. CMAJ Open 2022; 10:E348-E356. [PMID: 35440483 PMCID: PMC9022938 DOI: 10.9778/cmajo.20210049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND In patients with kidney failure, living donor kidney transplantation (LDKT) is the best treatment option; yet, LDKT rates have stagnated in Canada and vary widely across provinces. We aimed to identify barriers and facilitators to LDKT in a high-performing health system. METHODS This study was conducted using a qualitative exploratory case study of British Columbia. Data collection, conducted between October 2020 and January 2021, entailed document review and semistructured interviews with key stakeholders, including provincial leadership, care teams and patients. We recruited participants via purposive sampling and snowballing technique. We generated themes using thematic analysis. RESULTS After analysis of interviews conducted with 22 participants (5 representatives from provincial organizations, 7 health care providers at transplant centres, 8 health care providers from regional units and 2 patients) and document review, we identified the following 5 themes as facilitators to LDKT: a centralized infrastructure, a mandate for timely intervention, an equitable funding model, a commitment to collaboration and cultivating distributed expertise. The relationship between 2 provincial organizations (BC Transplant and BC Renal Agency) was identified as key to enabling the mandate and processes for LDKT. Five barriers were identified that arose from silos between provincial organizations and manifested as inconsistencies in coordinating LDKT along the spectrum of care. These were divided accountability structures, disconnected care processes, missed training opportunities, inequitable access by region and financial burden for donors and recipients. INTERPRETATION We found strong links between provincial infrastructure and the processes that facilitate or impede timely intervention and referral of patients for LDKT. Our findings have implications for policy-makers and provide opportunities for cross-jurisdictional comparative analyses.
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Affiliation(s)
- Anna Horton
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que
| | - Peter Nugus
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que
| | - Marie-Chantal Fortin
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que
| | - David Landsberg
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que
| | - Marcelo Cantarovich
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre (Horton, Cantarovich, Sandal); Department of Family Medicine and Institute of Health Sciences Education (Nugus), McGill University; Division of Nephrology (Fortin), Department of Medicine, Centre hospitalier de l'Université de Montréal; Centre de recherche du Centre hospitalier de l'Université de Montréal (Fortin), Montréal, Que.; Department of Medicine (Landsberg), University of British Columbia, Vancouver, BC; Division of Nephrology (Cantarovich, Sandal), Department of Medicine, McGill University Health Centre, Montréal, Que.
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Sandal S, Horton A, Fortin MC. Advancing a Paradigm Shift to Approaching Health Systems in the Field of Living-Donor Kidney Transplantation: An Opinion Piece. Can J Kidney Health Dis 2022; 9:20543581221079486. [PMID: 35237443 PMCID: PMC8882925 DOI: 10.1177/20543581221079486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 01/20/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
- The Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Anna Horton
- The Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Marie-Chantal Fortin
- Division of Nephrology, Department of Medicine, Centre hospitalier de l’Université de Montréal, QC, Canada
- Centre de recherche du Centre hospitalier de l’Université de Montréal, QC, Canada
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25
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Sandal S, Massie A, Boyarsky B, Chiang TPY, Thavorn K, Segev DL, Cantarovich M. Impact of the COVID-19 pandemic on transplantation by income level and cumulative COVID-19 incidence: a multinational survey study. BMJ Open 2022; 12:e055367. [PMID: 35022176 PMCID: PMC8756076 DOI: 10.1136/bmjopen-2021-055367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES The COVID-19 pandemic significantly affected the provisions of health services to necessary but deprioritised fields, such as transplantation. Many programmes had to ramp-down their activity, which may significantly affect transplant volumes. We aimed to pragmatically analyse measures of transplant activity and compare them by a country's income level and cumulative COVID-19 incidence (CCI). DESIGN, SETTING AND PARTICIPANTS From June to September 2020, we surveyed transplant physicians identified as key informants in their programmes. Of the 1267 eligible physicians, 40.5% from 71 countries participated. OUTCOME Four pragmatic measures of transplant activity. RESULTS Overall, 46.5% of the programmes from high-income countries anticipate being able to maintain >75% of their transplant volume compared with 31.6% of the programmes from upper-middle-income countries, and with 21.7% from low/lower-middle-income countries (p<0.001). This could be because more programmes in high-income countries reported being able to perform transplantation/s (86.8%%-58.5%-67.9%, p<0.001), maintain prepandemic deceased donor offers (31.0%%-14.2%-26.4%, p<0.01) and avoid a ramp down phase (30.9%%-19.7%-8.3%, p<0.001), respectively. In a multivariable analysis that adjusted for CCI, programmes in upper-middle-income countries (adjusted OR, aOR=0.47, 95% CI 0.27 to 0.81) and low/lower-middle-income countries (aOR 0.33, 95% CI 0.16 to 0.67) had lower odds of being able to maintain >75% of their transplant volume, compared with programmes in high-income countries. Again, this could be attributed to lower-income being associated with 3.3-3.9 higher odds of performing no transplantation/s, 66%-68% lower odds of maintaining prepandemic donor offers and 37%-76% lower odds of avoiding ramp-down of transplantation. Overall, CCI was not associated with these measures. CONCLUSIONS The impact of the pandemic on transplantation was more in lower-income countries, independent of the COVID-19 burden. Given the lag of 1-2 years in objective data being reported by global registries, our findings may inform practice and policy. Transplant programmes in lower-income countries may need more effort to rebuild disrupted services and recuperate from the pandemic even if their COVID-19 burden was low.
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Affiliation(s)
- Shaifali Sandal
- Department of Medicine, Division of Nephrology, Multi-organ Transplant Program, Montreal, Québec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Québec, Canada
| | - Allan Massie
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, USA
| | - Brian Boyarsky
- Department of Surgery, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Kednapa Thavorn
- Institute for Clinical Evaluative Sciences, Ottawa, Ontario, Canada
- The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Dorry L Segev
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, USA
- Department of Surgery, Johns Hopkins University, Baltimore, Maryland, USA
| | - Marcelo Cantarovich
- Department of Medicine, Division of Nephrology, Multi-organ Transplant Program, Montreal, Québec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Québec, Canada
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Sandal S, Ahn JB, Segev DL, Cantarovich M, McAdams-DeMarco MA. Comparing outcomes of third and fourth kidney transplantation in older and younger patients. Am J Transplant 2021; 21:4023-4031. [PMID: 34355512 PMCID: PMC8639643 DOI: 10.1111/ajt.16786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 01/25/2023]
Abstract
Performing third or fourth kidney transplantation (3KT and 4KT) in older patients is rare due to surgical and immunologic challenges. We aimed to analyze and compare the outcomes of younger (18-64 years) and older (≥65 years) recipients of 3KT and 4KT. Between 1990 and 2016, we identified 5816 recipients of 3KTs (153 were older) and 886 recipients of 4KTs (18 were older). The incidences of delayed graft function (24.3% vs. 24.8%, p = .89), primary non-function (3.2% vs. 1.3%, p = .21), 1-year acute rejection (18.6% vs. 14.8%, p = .24), and 5-year death censored graft failure (DCGF) (24.8% vs. 17.9%, p = .06) were not different between younger and older recipients of 3KT. However, 5-year mortality was higher in older recipients (14.0% vs. 33.8%, p < .001) which remained significant after adjustment (aHR = 3.21, 95% CI: 2.59-3.99). Similar patterns were noted in the 4KT cohort. When compared with waitlisted patients, 3KT and 4KT are associated with a lower risk of mortality; aHR = 0.37, 95% CI: 0.33-0.41 and aHR = 0.31, 95% CI: 0.24-0.41, respectively. This survival benefit did not differ by recipient age (younger vs. older, p for interaction = 3KT: .49 and 4KT: .58). In the largest cohort described to date, we report that there is a survival benefit of 3KT and 4KT even among older patients. Although a highly selected cohort, our results support improving access to 3KT and 4KT.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec,Research Institute of the McGill University Health Centre, Montreal, Quebec
| | - JiYoon B. Ahn
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dorry L. Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec,Research Institute of the McGill University Health Centre, Montreal, Quebec
| | - Mara A. McAdams-DeMarco
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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Sandal S, Boyarsky BJ, Massie A, Chiang TPY, Segev DL, Cantarovich M. Immunosuppression practices during the COVID-19 pandemic: A multinational survey study of transplant programs. Clin Transplant 2021; 35:e14376. [PMID: 34050961 PMCID: PMC8209940 DOI: 10.1111/ctr.14376] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/03/2021] [Accepted: 05/24/2021] [Indexed: 12/17/2022]
Abstract
During the COVID-19 pandemic, there has been wide heterogeneity in the medical management of transplant recipients. We aimed to pragmatically capture immunosuppression practices globally following the early months of the pandemic. From June to September 2020, we surveyed 1267 physicians; 40.5% from 71 countries participated. Management decisions were made on a case-by-case basis by the majority (69.6%) of the programs. Overall, 76.8% performed ≥1 transplantation and many commented on avoiding high-risk transplantations. For induction, 26.5% were less likely to give T-cell depletion and 14.8% were more likely to give non-depleting agents. These practices varied by program-level factors more so than the COVID-19 burden. In patients with mild, moderate and severe COVID-19 symptoms 59.7%, 76.0%, and 79.5% decreased/stopped anti-metabolites, 23.2%, 45.4%, and 68.2% decreased/stopped calcineurin inhibitors, and 25.7%, 43.9%, and 57.7% decreased/stopped mTOR inhibitors, respectively. Also, 2.1%, 30.6%, and 46.0% increased steroids in patients with mild, moderate, and severe COVID-19 symptoms. For prevalent transplant recipients, some programs also reported decreasing/stopping steroids (1.8%), anti-metabolites (10.3%), calcineurin inhibitors (4.1%), and mTOR inhibitors (5.5%). Transplant programs changed immunosuppression practices but also avoided high-risk transplants and increased maintenance steroids. The long-term ramifications of these practices remain to be seen as programs face the aftermath of the pandemic.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Multi-Organ Transplant Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada.,Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Brian J Boyarsky
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Allan Massie
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Teresa Po-Yu Chiang
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dorry L Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Marcelo Cantarovich
- Division of Nephrology, Multi-Organ Transplant Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada.,Research Institute of the McGill University Health Centre, Montreal, QC, Canada
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Sandal S, Boyarsky BJ, Cantarovich M. The higher impact of the COVID-19 pandemic on resident/fellow training in low- and middle-income countries. Transpl Int 2021; 34:988-989. [PMID: 33629397 PMCID: PMC8013596 DOI: 10.1111/tri.13853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Multi-Organ Transplant Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Brian J Boyarsky
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Marcelo Cantarovich
- Division of Nephrology, Multi-Organ Transplant Program, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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MacIsaac S, Ramanakumar AV, Saw C, Naessens V, Saberi N, Cantarovich M, Baran D, Paraskevas S, Tchervenkov J, Chaudhury P, Sandal S. Relative decrease in hemoglobin and outcomes in patients undergoing kidney transplantation surgery: A retrospective cohort study. Am J Surg 2021; 222:825-831. [PMID: 33707078 DOI: 10.1016/j.amjsurg.2021.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/09/2021] [Accepted: 03/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Recent surgical literature suggests that a relative decrease in hemoglobin (ΔHb) is predictive of adverse outcomes regardless of the absolute level. We aimed to examine the association between perioperative ΔHb and kidney transplantation (KT) outcomes. METHODS This was a retrospective cohort study of transplant recipients, where ΔHb = [Hb0- Hb1Hb0]x 100 (Hb0 = hemoglobin pre-KT and Hb1 = lowest hemoglobin 24-h post-KT). The main outcome of interest was immediate graft function (IGF). RESULTS Of the 899 eligible patients, 38% experienced IGF, and ΔHb was associated with 36% lower odds of IGF. Also, ΔHb was associated with higher all-cause graft failure and longer length of stay but not death-censored graft failure or mortality. ΔHb ≥30% was the threshold beyond which the odds of IGF were significantly lower even if Hb1 was ≥7 g/dL. CONCLUSION ΔHb is associated with inferior outcomes independent of Hb1; whether it can be used to guide transfusion practices should be explored.
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Affiliation(s)
- Sarah MacIsaac
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
| | | | - Chee Saw
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Hematology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Veronique Naessens
- Division of Hematology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Nasim Saberi
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Dana Baran
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Steven Paraskevas
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Jean Tchervenkov
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Prosanto Chaudhury
- Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada.
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
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Sandal S, Chen T, Cantarovich M. Evaluation of Transplant Candidates With a History of Nonadherence: An Opinion Piece. Can J Kidney Health Dis 2021; 8:2054358121990137. [PMID: 33598301 PMCID: PMC7863559 DOI: 10.1177/2054358121990137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/03/2021] [Indexed: 12/18/2022] Open
Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Tianyan Chen
- Division of Hepatology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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Sandal S, Soin A, Dor FJMF, Muller E, Ali A, Tong A, Chan A, Segev DL, Levan M. Insights From Transplant Professionals on the Use of Social Media: Implications and Responsibilities. Transpl Int 2021; 35:10181. [PMID: 35185368 PMCID: PMC8842268 DOI: 10.3389/ti.2021.10181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/15/2021] [Indexed: 02/05/2023]
Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
- *Correspondence: Shaifali Sandal,
| | - Arvinder Soin
- Institute of Liver Transplantation and Regenerative Medicine, Medanta-The Medicity, Gurugram, India
| | - Frank J. M. F. Dor
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
- Department of Surgery and Cancer, Imperial College, London, United Kingdom
| | - Elmi Muller
- Division of General Surgery, Department of Surgery, University of Cape Town, Cape Town, South Africa
| | - Ala Ali
- Nephrology and Renal Transplantation Centre, The Medical City, Baghdad, Iraq
| | - Allison Tong
- Sydney School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Albert Chan
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Dorry L. Segev
- Department of Surgery, Division of Transplantation, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Macey Levan
- Department of Surgery, Division of Transplantation, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Cherniak V, Demir KK, Sandal S, Cantarovich M, Podymow T, Naessens V, Ponette V, Wou K, Do AT, Malhamé I. Thrombotic Microangiopathy in a Pregnant Woman With Kidney Transplantation: A Case Report. J Obstet Gynaecol Can 2020; 43:874-878. [PMID: 33310162 DOI: 10.1016/j.jogc.2020.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND The differential diagnosis of thrombotic microangiopathy (TMA) in pregnancy includes common conditions, such as preeclampsia. In women with kidney transplantation, additional causes of TMA must be considered. CASE A 22-year-old primigravid woman with a transplanted kidney presented with fetal growth restriction, hypertension, acute kidney injury, and hemolysis at 28 weeks gestation. While her clinical presentation was initially consistent with preeclampsia, hemolysis persisted beyond 1 week postpartum. Diagnoses of TMA associated with tacrolimus and antibody-mediated rejection were considered. An elevated tacrolimus level likely contributed to her TMA and a decrease in dosage improved her clinical picture and laboratory markers. CONCLUSION We report the case of a pregnant kidney transplant recipient with TMA. A multidisciplinary approach is required to optimize the maternal health outcomes in this complex population.
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Affiliation(s)
- Vladimir Cherniak
- Department of Medicine, McGill University Health Centre, Montréal, QC
| | - Koray K Demir
- Department of Medicine, McGill University Health Centre, Montréal, QC
| | - Shaifali Sandal
- Department of Medicine, McGill University Health Centre, Montréal, QC
| | | | - Tiina Podymow
- Department of Medicine, McGill University Health Centre, Montréal, QC
| | | | - Vincent Ponette
- Department of Obstetrics and Gynaecology, McGill University Health Centre, Montréal, QC
| | - Karen Wou
- Department of Obstetrics and Gynaecology, McGill University Health Centre, Montréal, QC
| | - Anh Thu Do
- Department of Pharmacy, McGill University Health Centre, Montréal, QC
| | - Isabelle Malhamé
- Department of Medicine, McGill University Health Centre, Montréal, QC; Research Institute of the McGill University Health Centre, Montréal, QC.
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Mappin-Kasirer B, Hoffman L, Sandal S. New-onset Psychosis in an Immunosuppressed Patient With Kidney Transplantation: An Educational Case Report. Can J Kidney Health Dis 2020; 7:2054358120947210. [PMID: 32821416 PMCID: PMC7412902 DOI: 10.1177/2054358120947210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/12/2020] [Indexed: 11/17/2022] Open
Abstract
Rationale New-onset psychosis in an immunosuppressed patient post-kidney transplantation (KT) is a diagnostic challenge. A broad differential diagnosis merits consideration; however, an approach to this differential diagnosis remains to be outlined in the literature. Also, when and how to modify the maintenance immunosuppressive regimen remains a significant area of controversy. Presenting concerns A 23-year-old male, known for X-linked Alport syndrome for which he had undergone KT 1 year prior, presented with a 1-week history of disorganized speech, bizarre behavior, religious delusions, and visual hallucinations. Diagnoses After ruling out infectious, metabolic, autoimmune, and structural causes, immunosuppressant medications were changed from tacrolimus to cyclosporine. The patient did not improve after this change, and a second opinion consultation with a transplant psychiatrist led to a diagnosis of primary first-episode psychosis, later refined to bipolar disorder type I. Interventions The patient was started on risperidone, which led to a significant improvement in his symptoms. Outcomes Twelve months after discharge, his mood and behavior had returned to baseline on aripiprazole, bupropion, and citalopram. However, he developed acute allograft rejection, prompting a change from cyclosporine back to tacrolimus, with stability of his mental state and graft function. Teaching points This report offers learners an extensive and organized differential diagnosis to the work up of psychosis post kidney transplantation. A complete history, with input from collateral sources, and a systematic approach to the differential diagnosis, are crucial and should not be overshadowed by the risk of immunosuppressant-related neurotoxicity. We underscore the importance of multi-disciplinary management and comprehensive psychosocial assessment and re-assessment to refine the diagnosis. We also report the successful re-introduction of tacrolimus once the diagnosis of a primary psychiatric disorder is confirmed. Finally, we offer a simplified approach that can aid in distinguishing between a primary psychiatric diagnosis versus tacrolimus-associated psychosis.
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Affiliation(s)
| | - Lawrence Hoffman
- Department of Psychiatry, McGill University Health Centre, Montreal, QC, Canada
| | - Shaifali Sandal
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Nephrology Division, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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Leung VWY, Pilon SJ, Fiset PO, Sandal S. A case report on lipofuscin deposition in a graft biopsy two years after kidney transplantation: an insignificant bystander or a pathogenic benefactor? BMC Nephrol 2019; 20:376. [PMID: 31623557 PMCID: PMC6798339 DOI: 10.1186/s12882-019-1569-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 09/27/2019] [Indexed: 11/10/2022] Open
Abstract
Background Lipofuscin deposition is a characteristic manifestation of aging. There is very limited literature in humans and in animals describing these deposits in native kidneys. Overall, it is thought to be non-pathogenic and successful transplants from a donor with lipofuscin deposits have been reported. We present the case of a patient who underwent a kidney transplant and a for-cause biopsy post-transplantation incidentally revealed lipofuscin deposition. Case presentation A 48-year old gentleman with a past medical history of diabetes, hypertension, coronary artery disease, and ischemic and then hemorrhagic cardiovascular accident underwent a successful kidney transplant. His donor was an expanded criteria donor with no major past medical history. Post-transplant course was complicated by delayed graft function requiring one dialysis treatment for hyperkalemia. After that he had an uneventful course and achieved a baseline creatinine of 1.2 mg/dL, with no proteinuria. On a routine 19-month follow-up he was noted to have proteinuria and an antibody against the major-histocompatibility-complex class I-related chain A. A graft biopsy revealed acute antibody-mediated rejection and impressive lipofuscin deposition. He was subsequently treated with an antibody-mediated rejection protocol that included high dose steroids, Rituximab, plasmapheresis, and intravenous immunoglobulin, but responded poorly to this regimen. A 6-month follow up biopsy continued to show lipofuscin deposition, with similar microvascular injury scores and 12-months later his creatinine remained stable but his proteinuria worsened. Patient was struggling with recurrent infectious episodes requiring hospitalizations and thus no further diagnostic or therapeutic treatments were pursued. Conclusions Lipofuscin deposition has been reported in solid organ transplants but the significance and cause are not well understood. Several physiologic and some pathologic causes to these deposits have been reported including age, diabetes, medications and a genetic syndrome. We propose that immunologic causes such as rejection in the presence of other risk factors could potentiate the oxidative stress leading to excessive lipofuscin deposition in kidney transplants. In the case of our patient, we conclude that these deposits were likely recipient-derived, and postulate that the cumulative burden of inflammation from rejection, and underlying medical conditions led to increased lipofuscin deposition. We speculate them to be an innocent bystander.
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Affiliation(s)
- Vivian W Y Leung
- Faculty of Medicine, McGill University, 1001 boul Decarie, Montreal, Quebec, H4A 3J1, Canada
| | - Sarah-Jeanne Pilon
- Department of Pathology, McGill University Health Centre, 1001 boul Decarie, Montreal, Quebec, H4A 3J1, Canada
| | - Pierre O Fiset
- Department of Pathology, McGill University Health Centre, 1001 boul Decarie, Montreal, Quebec, H4A 3J1, Canada
| | - Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, 1001 boul Decarie, Montreal, Quebec, H4A 3J1, Canada. .,Research Institute of the McGill University Health Centre, 1001 boul Decariel, Montrea, Quebec, H4A 3J1, Canada. .,Royal Victoria Hospital Glen Site, D05-7176, 1001 boul Decarie, Montreal, QC, H4A 3J1, Canada.
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Sandal S, Bae S, McAdams-DeMarco M, Massie AB, Lentine KL, Cantarovich M, Segev DL. Induction immunosuppression agents as risk factors for incident cardiovascular events and mortality after kidney transplantation. Am J Transplant 2019; 19:1150-1159. [PMID: 30372596 PMCID: PMC6433494 DOI: 10.1111/ajt.15148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/30/2018] [Accepted: 10/19/2018] [Indexed: 01/25/2023]
Abstract
Low T cell counts and acute rejection are associated with increased cardiovascular events (CVEs); T cell-depleting agents decrease both. Thus, we aimed to characterize the risk of CVEs by using an induction agent used in kidney transplant recipients. We conducted a secondary data analysis of patients who received a kidney transplant and used Medicare as their primary insurance from 1999 to 2010. Outcomes of interest were incident CVE, all-cause mortality, CVE-related mortality, and a composite outcome of mortality and CVE. Of 47 258 recipients, 29.3% received IL-2 receptor antagonist (IL-2RA), 33.3% received anti-thymocyte globulin (ATG), 7.3% received alemtuzumab, and 30.0% received no induction. Compared with IL-2RA, there was no difference in the risk of CVE in the ATG (adjusted hazard ratio [aHR] 0.98, 95% confidence interval [CI] 0.92-1.05) and alemtuzumab group (aHR 1.01, 95% CI 0.89-1.16), but slightly higher in the no induction group (aHR 1.06, 95% CI 1.00-1.14). Acute rejection did not modify this association in the latter group but did increase CVE by 46% in the alemtuzumab group. There was no difference in the hazard of all-cause or CVE-related mortality. Only in the ATG group, a 7% lower hazard of the composite outcome of mortality and CVE was noted. Induction agents are not associated with incident CVE, although prospective trials are needed to determine a personalized approach to prevention.
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Affiliation(s)
- Shaifali Sandal
- Department of Medicine, Divisions of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC
| | - Sunjae Bae
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mara McAdams-DeMarco
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allan B. Massie
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Krista L. Lentine
- Center for Abdominal Transplantation, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Marcelo Cantarovich
- Department of Medicine, Divisions of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC
| | - Dorry L. Segev
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Sandal S, Charlebois K, Fiore JF, Wright DK, Fortin MC, Feldman LS, Alam A, Weber C. Health Professional-Identified Barriers to Living Donor Kidney Transplantation: A Qualitative Study. Can J Kidney Health Dis 2019; 6:2054358119828389. [PMID: 30792874 PMCID: PMC6376531 DOI: 10.1177/2054358119828389] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Living donor kidney transplantation (LDKT) has several advantages over deceased donor kidney transplantation. Yet rates of living donation are declining in Canada and there exists significant interprovincial variability. Efforts to improve living donation tend to focus on the patient and barriers identified at their level, such as not knowing how to ask for a kidney or lack of education. These efforts favor those who have the means and the support to find living donors. Thus, a Canadian Institutes of Health Research (CIHR)-organized workshop recommended that education efforts to understand and remove barriers should focus on health professionals (HPs). Despite this, little attention has been paid to what they identify as barriers to discussing LDKT with their patients. OBJECTIVE Our aim was to explore HP-identified barriers to discuss living donation with patients in 3 provinces of Canada with low (Quebec), moderate (Ontario), and high (British Columbia) rates of LDKT. DESIGN This study consists of an interpretive descriptive approach as it enables to move beyond description and inform clinical practice. SETTING Purposive criterion and quota sampling were used to recruit HPs from Quebec, Ontario, and British Columbia who are involved in the care of patients with kidney disease and/or with transplant coordination. PATIENTS Not applicable. MEASUREMENTS Semistructured interviews were conducted. The interview guide was developed based on a preliminary analytical framework and a review of the literature. METHODS Thematic analysis was used to analyze the data stemming from the interviews. The coding process comprised of a deductive and inductive approach, and the use of a qualitative analysis software (NVivo 11). Following this, themes were identified and developed. Interviews were conducted until thematic saturation was obtained. In total, we conducted 16 telephone interviews as thematic saturation was attained. RESULTS Six predominant themes emerged: (1) lack of communication between transplant and dialysis teams, (2) absence of referral guidelines, (3) role perception and lack of multidisciplinary involvement, (4) HP's lack of information and training, (5) negative attitudes of some HP toward LDKT, (6) patient-level barriers as defined by the HP. HPs did mention patients' attitudes and some characteristics as the main barriers to discussions about living donation; this was noted in all provinces. HPs from Ontario and British Columbia indicated multiple strategies being implemented to address some of these barriers. Those from Ontario mentioned strategies that center on the core principles of provincial-level standardization, while those from British Columbia center on engaging the entire multidisciplinary team and improved role perception. We noted a dearth of such efforts in Quebec; however, efforts around education and promotion, while tentative, have emerged. LIMITATIONS Social desirability and selection bias. Our analysis might not be applicable to other provinces. CONCLUSIONS HPs involved with the referral and coordination of transplantation play a major role in access to LDKT. We have identified challenges they face when discussing living donation with their patients that warrant further assessment and research to inform policy change.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | | | - Julio F. Fiore
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - David Kenneth Wright
- St. Mary’s Research Center, Montreal, QC, Canada
- School of Nursing, University of Ottawa, Ottawa, ON, Canada
| | - Marie-Chantal Fortin
- Division of Nephrology, Department of Medicine, Centre hospitalier de l’Université de Montréal, Montreal, QC, Canada
- Centre de recherche du Centre hospitalier de l’Université de Montréal, Montreal, QC, Canada
| | - Liane S. Feldman
- Department of Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - Ahsan Alam
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Catherine Weber
- Division of Nephrology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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Demir M, Yilmaz U, Colak C, Cigremis Y, Ozyalin F, Tekedereli I, Sandal S. Is there a new pathway relationship between melatonin and FEZ1 in experimental rat model of Alzheimer’s disease? BRATISL MED J 2019; 120:70-77. [DOI: 10.4149/bll_2019_011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sandal S, Tiewsoh K, Hansdak N, Parajuli B. Pulmonary Thromboembolism: A Rare but Serious Complication of Nephrotic Syndrome. Indian J Nephrol 2018; 28:247-248. [PMID: 29962680 PMCID: PMC5998722 DOI: 10.4103/ijn.ijn_284_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- S Sandal
- Department of Pediatrics, Advanced Pediatrics Center, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K Tiewsoh
- Department of Pediatrics, Advanced Pediatrics Center, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - N Hansdak
- Department of Pediatrics, Advanced Pediatrics Center, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - B Parajuli
- Department of Pediatrics, Advanced Pediatrics Center, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Sandal S, Luo X, Massie AB, Paraskevas S, Cantarovich M, Segev DL. Machine perfusion and long-term kidney transplant recipient outcomes across allograft risk strata. Nephrol Dial Transplant 2018; 33:1251-1259. [PMID: 29474675 PMCID: PMC6030984 DOI: 10.1093/ndt/gfy010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/27/2017] [Indexed: 12/22/2022] Open
Abstract
Background The use of machine perfusion (MP) in kidney transplantation lowers delayed graft function (DGF) and improves 1-year graft survival in some, but not all, grafts. These associations have not been explored in grafts stratified by the Kidney Donor Profile index (KDPI). Methods We analyzed 78 207 deceased-donor recipients using the Scientific Registry of Transplant Recipients data from 2006 to 2013. The cohort was stratified using the standard criteria donor/expanded criteria donor (ECD)/donation after cardiac death (DCD)/donation after brain death (DBD) classification and the KDPI scores. In each subgroup, MP use was compared with cold storage. Results The overall DGF rate was 25.4% and MP use was associated with significantly lower DGF in all but the ECD-DCD donor subgroup. Using the donor source classification, the use of MP did not decrease death-censored graft failure (DCGF), except in the ECD-DCD subgroup from 0 to 1 year {adjusted hazard ratio [aHR] 0.56 [95% confidence interval (CI) 0.32-0.98]}. In the ECD-DBD subgroup, higher DCGF from 1 to 5 years was noted [aHR 1.15 (95% CI 1.01-1.31)]. Also, MP did not lower all-cause graft failure except in the ECD-DCD subgroup from 0 to 1 year [aHR = 0.59 (95% CI 0.38-0.91)]. Using the KDPI classification, MP did not lower DCGF or all-cause graft failure, but in the ≤70 subgroup, higher DCGF [aHR 1.16 (95% CI 1.05-1.27)] and higher all-cause graft failure [aHR 1.10 (95% CI 1.02-1.18)] was noted. Lastly, MP was not associated with mortality in any subgroup. Conclusions Overall, MP did not lower DCGF. Neither classification better risk-stratified kidneys that have superior graft survival with MP. We question their widespread use in all allografts as an ideal approach to organ preservation.
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Affiliation(s)
- Shaifali Sandal
- Department of Medicine, Divisions of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Xun Luo
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allan B Massie
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Steven Paraskevas
- Department of Surgery, Division of Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Department of Medicine, Divisions of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Dorry L Segev
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Sandal S, Paraskevas S, Cantarovich M, Baran D, Chaudhury P, Tchervenkov JI, Sapir-Pichhadze R. Renal resistance thresholds during hypothermic machine perfusion and transplantation outcomes - a retrospective cohort study. Transpl Int 2018; 31:658-669. [PMID: 29493843 DOI: 10.1111/tri.13146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/06/2017] [Accepted: 02/21/2018] [Indexed: 12/31/2022]
Abstract
Renal resistance (RR), of allografts undergoing hypothermic machine perfusion (HMP), is considered a measure of organ quality. We conducted a retrospective cohort study of adult deceased donor kidney transplant (KT) recipients whose grafts underwent HMP. Our aim was to evaluate whether RR is predictive of death-censored graft failure (DCGF). Of 274 KT eligible for analysis, 59% were from expanded criteria donor. RR was modeled as a categorical variable, using a previously identified terminal threshold of 0.4, and 0.2 mmHg/ml/min (median in our cohort). Hazard ratios (HR) of DCGF were 3.23 [95% confidence interval (CI): 1.12-9.34, P = 0.03] and 2.67 [95% CI: 1.14-6.31, P = 0.02] in univariable models, and 2.67 [95% CI: 0.91-7.86, P = 0.07] and 2.42 [95% CI: 1.02-5.72, P = 0.04] in multivariable models, when RR threshold was 0.4 and 0.2, respectively. Increasing risk of DCGF was observed when RR over the course of HMP was modeled using mixed linear regression models: HR of 1.31 [95% CI: 1.07-1.59, P < 0.01] and 1.25 [95% CI: 1.00-1.55, P = 0.05], in univariable and multivariable models, respectively. This suggests that RR during HMP is a predictor of long-term KT outcomes. Prospective studies are needed to assess the survival benefit of patients receiving KT with higher RR in comparison with staying wait-listed.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Steven Paraskevas
- Division of General Surgery and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Marcelo Cantarovich
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Dana Baran
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Prosanto Chaudhury
- Division of General Surgery and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Jean I Tchervenkov
- Division of General Surgery and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada
| | - Ruth Sapir-Pichhadze
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, Canada.,Division of Clinical Epidemiology, McGill University Health Centre, Montreal, QC, Canada.,Centre for Outcomes Research and Evaluation (CORE), McGill University Health Centre, Montreal, QC, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada
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Sandal S, Bansal P, Cantarovich M. The evidence and rationale for the perioperative use of loop diuretics during kidney transplantation: A comprehensive review. Transplant Rev (Orlando) 2017; 32:92-101. [PMID: 29242033 DOI: 10.1016/j.trre.2017.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/08/2017] [Accepted: 11/14/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE Loop diuretics (LD) attenuate ischemic injury in nephrons. They are thought to decrease delayed graft function (DGF) during kidney transplantation (KT). This review aimed to summarize the current evidence for the perioperative use of LD during KT. METHODS We performed an analysis of all articles that were published since the inception of Medline and Embase: 26 studies were selected for inclusion. Scope was LD use during the perioperative phase of KT only. RESULTS Six animal studies demonstrated mixed results in terms of renal function and survival. Of the 20 studies performed in humans, 4 were randomized clinical trials. The risk of bias was mostly unclear. Evidence supporting the role of LD to increase diuresis was mixed and to prevent DGF was weak. There was poor evidence to support LD use to improve initial and long-term graft function. No data on patient survival could be found. Overall, there was a lack of any robust clinical evidence for LD use perioperatively during KT. IMPLICATIONS There is poor evidence to support the perioperative use of LD during KT. Well-designed trials are needed to further explore their safety and efficacy, and we summarize several rationales. Pragmatic rationales include volume management. There is evidence to suggest that LD have a vasodilatory effect, and decrease edema, congestion and oxygen requirements. Lastly, there are several theoretical rationales to explore LD use during KT, in particular, attenuating ischemia-reperfusion injury and modulating autophagy.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, 1001 boul. Decarie, Montreal, QC, Canada. H4A 3J1.
| | - Pannya Bansal
- Michigan State University College of Osteopathic Medicine, East Fee Hall, 965 Fee Rd, East Lansing, MI 48825, USA
| | - Marcelo Cantarovich
- Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, 1001 boul. Decarie, Montreal, QC, Canada. H4A 3J1
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Parlak AE, Celik S, Karatepe M, Turkoglu S, Alayunt NO, Dastan SD, Ulas M, Sandal S, Tekin S, Koparir M. Investigation of biological effects of some Mannich Bases containing Bis-1,2,4- Triazole. Cell Mol Biol (Noisy-le-grand) 2016; 62:46-54. [PMID: 27453272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/31/2016] [Indexed: 06/06/2023]
Abstract
In this study, the effects of Mannich bases containing bis-1,2,4-triazole on the levels of in vivo malondialdehyde (MDA) and antioxidant vitamins (A, E, C) were examined in serum, livers and kidneys of rats. DA and vitamin (A, E, C) levels were determined by high performance liquid chromatography (HPLC). Antioxidant effect was investigated by determining the MDA levels in Saccharomyces cerevisiae cells as in vitro. Furthermore, the antitumor effects of compounds were investigated against MCF-7 human breast cancer cells. Interrelations of results among control and compound groups were evaluated using SPSS statistical software package. As a result, some of the compounds showed effective biological activity when compared to control conditions. The test compounds used in this study may be effective for utilization in the selection and design of model compounds for further studies.
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Affiliation(s)
- A E Parlak
- Firat University Keban Vocational High School Elazig Turkey
| | - S Celik
- Usak University Faculty of Dentistry Usak Turkey
| | - M Karatepe
- Firat University, Faculty of Science Department of Chemistry Elazig Turkey
| | - S Turkoglu
- Firat University Faculty of Health Sciences Elazig Turkey
| | - N O Alayunt
- Usak University Banaz Vocational High School Usak Turkey
| | - S D Dastan
- Cumhuriyet University, Faculty of Veterinary Medicine Department of Biometrics and Genetics Sivas Turkey
| | - M Ulas
- Firat University, Faculty of Medicine Department of Physiology Elazig Turkey
| | - S Sandal
- Inonu University, Faculty of Medicine Department of Physiology Malatya Turkey
| | - S Tekin
- Inonu University, Faculty of Medicine Department of Physiology Malatya Turkey
| | - M Koparir
- Firat University, Faculty of Science Department of Chemistry Elazig Turkey
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Parajuli S, Singh J, Sandal S, Liebman SE, Demme RA. Self-Reported Employment Status and Social Participation After Successful Kidney Transplantation. Prog Transplant 2016; 26:92-8. [PMID: 27136255 DOI: 10.1177/1526924816633956] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction: Kidney transplantation (KTX) is considered the treatment of choice for most individuals with end-stage kidney disease. The purpose of this study was to assess the employment status and social participation after successful KTX. Methods: This was a retrospective cross-sectional study. Eligible participants were patients who received a transplant ≥1 year ago and who were previously on hemodialysis (HD) for ≥1 year. Two hundred individuals participated in this study. Results: A significant number (93.5%) of patients reported they were working prior to HD versus 35% while on HD. Only 14% reported receiving disability benefits prior to HD versus 75% receiving disability while on HD. Comparing transplant recipients with pre-HD patients, 35.5% versus 93.5% reported working, and 74.5% versus 14% reported receiving disability benefits, respectively. After transplant, patients were more likely to join recreational clubs, travel frequently, and participate in recreational/religious activities and social events than when they were on HD. Conclusion: Posttransplant, these individuals are more likely to participate in social and leisure activities, but the majority did not resume employment and continued to receive disability payments. Future studies could explore barriers to employment in patients who underwent successful transplantation and the causes and factors as to why these individuals continue to receive disability benefits.
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Affiliation(s)
- Sandesh Parajuli
- University of Rochester Medical Center, Rochester, NY, USA
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jagmeet Singh
- University of Rochester Medical Center, Rochester, NY, USA
- Guthrie Robert Packer Hospital, Sayre, PA, USA
| | - Shaifali Sandal
- University of Rochester Medical Center, Rochester, NY, USA
- McGill University Health Centre, Montreal, QC, Canada
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Sandal S, Almudevar A, Parajuli S, Bose A. Comparing 10-yr renal outcomes in deceased donor and living donor liver transplants. Clin Transplant 2015; 29:1140-7. [PMID: 26383173 DOI: 10.1111/ctr.12639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2015] [Indexed: 12/26/2022]
Abstract
Few studies have explored whether the type of LT, deceased donor LT (DDLT) or living donor LT (LDLT), impacts long-term renal outcomes. We performed a retrospective analysis of 220 LT recipients at our institution to study their renal outcomes at 10 yr. Exclusion criteria were age ≤ 18 yr, graft survival ≤ 6 months, and multiorgan transplants; 108 DDLTs and 62 LDLTs were eligible. At baseline, DDLTs had a lower eGFR than LDLTs and 10.2% of DDLTs were on dialysis as compared to 0% of LDLTs. At 10 yr, seven DDLT and three LDLT recipients required dialysis or renal transplant (p = 0.75). In recipients with graft survival >6 months, DDLTs had a slower decline in eGFR as compared to LDLTs (p < 0.01). Among LDLTs, the decline in eGFR continued over the entire 10-yr period, whereas among DDLTs, the decline in eGFR slowed significantly after six months (p = 0.01). This difference between the two groups was not seen among patients in the highest quartile of baseline eGFR. Patient survival and graft survival were similar. In conclusion, the incidence of end-stage renal disease was similar in both DDLT and LDLT patients, but LDLT recipients seem to have a more sustained decline in eGFR when compared with DDLT recipients.
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Affiliation(s)
- Shaifali Sandal
- Division of Nephrology, University of Rochester Medical Center, Rochester, NY, USA.,Division of Nephrology and Multi-Organ Transplant Program, McGill University Health Centre, Montreal, QC, USA
| | - Anthony Almudevar
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, USA
| | - Sandesh Parajuli
- Division of Nephrology, University of Rochester Medical Center, Rochester, NY, USA.,Division of Nephrology, University of Wisconsin, Madison, WI, USA
| | - Anirban Bose
- Division of Nephrology, University of Rochester Medical Center, Rochester, NY, USA
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Abstract
Antibody mediated renal allograft rejection is a significant cause of acute and chronic graft loss. Recent work has revealed that AMR is a complex processes, involving B and plasma cells, donor-specific antibodies, complement, vascular endothelial cells, NK cells, Fc receptors, cytokines and chemokines. These insights have led to the development of numerous new therapies, and adaptation of others originally developed for treatment of hemetologic malignancies, autoimmune and complement mediated conditions. Here we review emerging insights into the pathophysiology of AMR as well as current and emerging therapies for both acute and chronic AMR. Finally, we discuss rational clinical trial design in light of antibody and B cell immunobiology, as well as appropriate efficacy metrics to identify robust protocols and therapeutic agents.
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Affiliation(s)
- Shaifali Sandal
- Department of Medicine, Division of Nephrology, University of Rochester Medical Center, Rochester NY
| | - Martin S. Zand
- Department of Medicine, Division of Nephrology, University of Rochester Medical Center, Rochester NY
- Center for Biodefense Immune Modeling, University of Rochester Medical Center, Rochester NY
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Sandal S, Singh J, Liebman SE. Prospective analysis of after-hour pages to nephrology fellows. Am J Kidney Dis 2014; 64:158-9. [PMID: 24797523 DOI: 10.1053/j.ajkd.2014.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Accepted: 04/03/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Shaifali Sandal
- University of Rochester Medical Center, Rochester, New York.
| | - Jagmeet Singh
- University of Rochester Medical Center, Rochester, New York
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Sandal S, Iannuzzi MC, Knohl SJ. Can we make grand rounds "grand" again? J Grad Med Educ 2013; 5:560-3. [PMID: 24455001 PMCID: PMC3886451 DOI: 10.4300/jgme-d-12-00355.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/05/2013] [Accepted: 05/12/2013] [Indexed: 11/06/2022] Open
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Neild GH, Sandal S, Zand MS. Page kidney phenomenon secondary to an atypical presentation of Erdheim-Chester disease. Clin Kidney J 2013; 6:547-8. [PMID: 26120451 PMCID: PMC4438401 DOI: 10.1093/ckj/sft086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 07/03/2013] [Indexed: 12/24/2022] Open
Affiliation(s)
- G H Neild
- Division of Nephrology, School of Medicine and Dentistry , University of Rochester Medical Center , Rochester, NY , USA
| | - Shaifali Sandal
- Division of Nephrology, School of Medicine and Dentistry , University of Rochester Medical Center , Rochester, NY , USA
| | - Martin S Zand
- Division of Nephrology, School of Medicine and Dentistry , University of Rochester Medical Center , Rochester, NY , USA
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Uslu U, Sandal S, Cumbul A, Yildiz S, Aydin M, Yilmaz B. Evaluation of estrogenic effects of polychlorinated biphenyls and organochlorinated pesticides using immature rat uterotrophic assay. Hum Exp Toxicol 2013; 32:476-82. [DOI: 10.1177/0960327112472999] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, we investigated the effects of polychlorinated biphenyls (PCBs) and organochlorinated pesticides on the serum levels of luteinising hormone (LH), follicle stimulating hormone (FSH) and weights and histomorphometry of uterine tissue in immature female rats using uterotrophic assay. A total of 36 rats were randomly divided into six groups ( n = 6 per group) as control, oestradiol (E2, 100 μg/kg), PCB 180, Aroclor 1221, endosulfan and mirex at 10 mg/kg dosage. After 3 days of injections (subcutaneous), animals were decapitated and blood samples were collected. Uteri were dissected, weighed out and then fixed in 10% formaldehyde. They were processed for histomorphometry. The serum levels of LH and FSH were determined by enzyme immunoassay. Uterine weight was significantly increased by E2 and reduced by mirex ( p < 0.001 and p < 0.05, respectively). Total volume of uterus was significantly raised by E2, Aroclor 1221 and endosulfan compared with that of the control group ( p < 0.01). The ratio of epithelium was significantly increased by E2, PCBs and pesticides ( p < 0.01). The uterine cavity ratio was decreased by aroclor ( p < 0.01), PCB 180 and mirex ( p < 0.05). The serum levels of LH did not significantly differ among the groups but the levels of FSH were decreased by PCB 180 and endosulfan ( p < 0.05 and p < 0.01, respectively). These findings suggest that PCB 180, Aroclor 1221 and endosulfan may be estrogenic in immature uterotrophic assay.
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Affiliation(s)
- U. Uslu
- Faculty of Medicine, Department of Histology, Yeditepe University, Istanbul, Turkey
| | - S. Sandal
- Faculty of Medicine, Department of Physiology, Inonu University, Malatya, Turkey
| | - A. Cumbul
- Faculty of Medicine, Department of Histology, Yeditepe University, Istanbul, Turkey
| | - S. Yildiz
- Faculty of Medicine, Department of Physiology, Inonu University, Malatya, Turkey
| | - M. Aydin
- Faculty of Medicine, Department of Physiology, Mustafa Kemal University, Hatay, Turkey
| | - B. Yilmaz
- Faculty of Medicine, Department of Physiology, Yeditepe University, Istanbul, Turkey
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