1
|
Jutras G, Lai JC. The Liver Frailty Index: a model for establishing organ-specific frailty metrics across all solid organ transplantation. Curr Opin Organ Transplant 2024:00075200-990000000-00124. [PMID: 38836426 DOI: 10.1097/mot.0000000000001157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
PURPOSE OF REVIEW In this review, we discuss the development of the Liver Frailty Index (LFI) and how it may serve as a model for developing other organ-specific frailty indices. RECENT FINDINGS As the demand for solid organ transplants continues to increase, the transplantation community is enhancing its strategies for organ allocation to gain deeper insights into patient risk profiles and anticipated outcomes. Frailty has emerged as a critical concept in transplant care, offering valuable insights into adverse health outcomes. Standardizing frailty assessment across transplant programs could enhance prognostic accuracy and inform pretransplant interventions.The LFI comprises of three performance-based tests that each represents essential components of the multidimensional frailty construct. This composite metric provides insights beyond liver function and considers nonhepatic comorbid factors. Identifying common frailty principles among all transplant candidates and adopting the LFI methodology, which assesses fundamental frailty principles using liver-specific tools, could establish a foundational pool of shared core frailty principles. From this pool, organ-specific frailty indices could be derived, each equipped with the clinically relevant organ-specific tools to evaluate common core principles. SUMMARY Creating a standardized framework across all solid-organ transplants, with common principles and organ-specific measurements, would facilitate consistent frailty assessment, standardize the integration of the frailty construct into transplant decision-making, and enable center-level interventions to improve outcomes for patients with end-stage organ disease.
Collapse
Affiliation(s)
- Gabrielle Jutras
- Department of Medicine, Division of Hepatology, Centre Hospitalier de l'Université de Montréal (CHUM), University of Montreal, Montreal, Quebec, Canada
| | - Jennifer C Lai
- Department of Medicine, Division of Gastroenterology and Hepatology, University of California - San Francisco, California, USA
| |
Collapse
|
2
|
Low JK, Crawford K, Lai J, Manias E. Factors associated with readmission in chronic kidney disease: Systematic review and meta-analysis. J Ren Care 2023; 49:229-242. [PMID: 35809061 DOI: 10.1111/jorc.12437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 05/14/2022] [Accepted: 06/05/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Risk factors associated with all-cause hospital readmission are poorly characterised in patients with chronic kidney disease. OBJECTIVE A systematic review and meta-analysis were conducted to identify risk factors and protectors of hospital readmission in chronic kidney disease. DESIGN, PARTICIPANTS & MEASUREMENTS Studies involving adult patients were identified from four databases from inception to 31/03/2020. Random-effects meta-analyses were conducted to determine factors associated with all-cause 30-day hospital readmission in general chronic kidney disease, in dialysis and in kidney transplant recipient groups. RESULTS Eighty relevant studies (chronic kidney disease, n = 14 studies; dialysis, n = 34 studies; and transplant, n = 32 studies) were identified. Meta-analysis revealed that in both chronic kidney disease and transplant groups, increasing age in years and days spent at the hospital during the initial stay were associated with a higher risk of 30-day readmission. Other risk factors identified included increasing body mass index (kg/m2 ) in the transplant group, and functional impairment and discharge destination in the dialysis group. Within the chronic kidney disease group, having an outpatient follow-up appointment with a nephrologist within 14 days of discharge was protective against readmission but this was not protective if provided by a primary care provider or a cardiologist. CONCLUSION Risk-reduction interventions that can be implemented include a nephrologist appointment within 14 days of hospital discharge, rehabilitation programme for functional improvement in the dialysis group and meal plans in the transplant group. Future risk analysis should focus on modifiable factors to ensure that strategies can be tested and implemented in those who are more at risk.
Collapse
Affiliation(s)
- Jac Kee Low
- School of Nursing and Midwifery, Centre for Quality and Patient Safety Research, Institute for Health Transformation, Deakin University, Melbourne, Victoria, Australia
| | - Kimberley Crawford
- Monash Nursing and Midwifery, Monash University, Clayton, Victoria, Australia
| | - Jerry Lai
- eSolution, Deakin University, Geelong, Victoria, Australia
- Intersect Australia, Sydney, New South Wales, Australia
| | - Elizabeth Manias
- School of Nursing and Midwifery, Centre for Quality and Patient Safety Research, Institute for Health Transformation, Deakin University, Melbourne, Victoria, Australia
| |
Collapse
|
3
|
MacRae JM, Harasemiw O, Lightfoot CJ, Thompson S, Wytsma-Fisher K, Koufaki P, Bohm C, Wilkinson TJ. Measurement properties of performance-based measures to assess physical function in chronic kidney disease: recommendations from a COSMIN systematic review. Clin Kidney J 2023; 16:2108-2128. [PMID: 37915888 PMCID: PMC10616478 DOI: 10.1093/ckj/sfad170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Indexed: 11/03/2023] Open
Abstract
Background There is wide heterogeneity in physical function tests available for clinical and research use, hindering our ability to synthesize evidence. The aim of this review was to identify and evaluate physical function measures that could be recommended for standardized use in chronic kidney disease (CKD). Methods MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, CINAHL, Scopus and Web of Science were searched from inception to March 2022, identifying studies that evaluated a clinimetric property (validity, reliability, measurement error and/or responsiveness) of an objectively measured performance-based physical function outcomes using the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) methodology and Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) based recommendations. Studies with individuals of all ages and of any stage of CKD were included. Results In total, 50 studies with 21 315 participants were included. Clinimetric properties were reported for 22 different physical function tests. The short physical performance battery (SPPB), Timed-up-and-go (TUG) test and Sit-to-stand tests (STS-5 and STS-60) had favorable properties to support their use in CKD and should be integrated into routine use. However, the majority of studies were conducted in the hemodialysis population, and very few provided information regarding validity or reliability. Conclusion The SPPB demonstrated the highest quality of evidence for reliability, measurement error and construct validity amongst transplant, CKD and dialysis patients. This review is an important step towards standardizing a core outcome set of tools to measure physical function in research and clinical settings for the CKD population.
Collapse
Affiliation(s)
- Jennifer M MacRae
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Oksana Harasemiw
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Chronic Disease Innovation Centre, Winnipeg, Manitoba, Canada
| | | | - Stephanie Thompson
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | | | - Pelagia Koufaki
- School of Health Sciences, Centre for Health, Activity and Rehabilitation Research, Queen Margaret University, Edinburgh, UK
| | - Clara Bohm
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Chronic Disease Innovation Centre, Winnipeg, Manitoba, Canada
| | | |
Collapse
|
4
|
Lorenz EC, Hickson LJ, Hogan MC, Kennedy CC. Examining the safety and effectiveness of a 4-week supervised exercise intervention in the treatment of frailty in patients with chronic kidney disease. Clin Kidney J 2023; 16:2003-2010. [PMID: 37915911 PMCID: PMC10616430 DOI: 10.1093/ckj/sfad192] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Indexed: 11/03/2023] Open
Abstract
Background The optimal duration of antifrailty interventions and how best to deliver them to patients with chronic kidney disease (CKD) is unknown. The aim of this study was to examine the safety, feasibility and preliminary efficacy of a 4-week supervised exercise intervention on frailty in patients with CKD. Methods We conducted a prospective feasibility study involving patients with ≥stage 3 CKD (1 patient with stage 3 CKD, 7 patients with stage 4 CKD and 17 patients with stage 5 CKD) who were either frail or prefrail according to the physical frailty phenotype and/or had a Short Physical Performance Battery (SPPB) score ≤10. The exercise intervention consisted of two supervised outpatient sessions per week for 4 weeks (eight total sessions). Frailty and other study measures were assessed at baseline and after 4 weeks of exercise. Results Of the 34 participants who completed the baseline assessment and were included in the analyses, 25 (73.5%) completed the 4-week assessment. Overall, 64.0% of patients were on dialysis and 64.0% had diabetes mellitus. After 4 weeks of exercise, frailty prevalence, total SPPB scores and energy/fatigue scores improved. No adverse study-related outcomes were reported. Conclusions The 4 weeks of supervised exercise was safe, was associated with an excellent completion rate and improved frailty parameters in CKD patients with CKD. This study provides important preliminary data for a future larger prospective randomized study. Clinical Trialgov registration: NCT03535584.
Collapse
Affiliation(s)
| | - LaTonya J Hickson
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, FL, USA
| | - Marie C Hogan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Cassie C Kennedy
- Division of Pulmonary, Critical Care, and Sleep Medicine, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
5
|
Bozkurt HN, Yıldırım M, Çelik A, Yıldız S. Predictors of static and dynamic balance control in kidney transplant recipients. Wien Klin Wochenschr 2023:10.1007/s00508-023-02292-3. [PMID: 37904031 DOI: 10.1007/s00508-023-02292-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 09/24/2023] [Indexed: 11/01/2023]
Abstract
BACKGROUND We aimed to evaluate balance control and lower extremity muscle strength in kidney transplant recipients (KTRs) including a comparison to a healthy control group and determine the predictors of static and dynamic balance control after kidney transplantation. METHODS In this study 40 KTRs and 40 healthy controls were included. Balance control was assessed using the Biodex balance system. The static postural stability test (SPST) and clinical test of sensory integration and balance (CTSIB) were used to assess static balance control whereas the dynamic postural stability test (DPST) and limits of stability test (LOST) were used for dynamic balance control. Lower extremity muscle strength was measured with a hand-held dynamometer. Renal functions and laboratory findings of KTRs were recorded. RESULTS All the stability index scores of SPST and sway index in CTSIB were significantly higher in KTRs compared to healthy controls. The right anteroposterior stability index score in DPST and the reaction time in LOST were significantly higher whereas overall score in LOST and lower extremity muscle strength were significantly lower in KTRs. The linear regression analysis revealed that hemoglobin was the predictor of static balance control accounting for 11% of the variance and body weight was the predictor of dynamic balance control accounting for 34% of the variance. CONCLUSION Balance control, both static and dynamic, are impaired in KTRs as well as lower extremity muscle strength. Hemoglobin level is a predictor of static balance control whereas body weight is a predictor of dynamic balance control after kidney transplantation.
Collapse
Affiliation(s)
- Hatice Nihan Bozkurt
- Graduate School of Health Sciences, Dokuz Eylul University, Izmir, Turkey.
- Faculty of Physical Therapy and Rehabilitation, Dokuz Eylul University, Mithatpaşa Street, Number: 56/15 Balçova, 35340, Izmir, Turkey.
| | - Meriç Yıldırım
- Faculty of Physical Therapy and Rehabilitation, Dokuz Eylul University, Mithatpaşa Street, Number: 56/15 Balçova, 35340, Izmir, Turkey
| | - Ali Çelik
- Division of Nephrology, Department of Internal Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Serkan Yıldız
- Division of Nephrology, Department of Internal Medicine, Dokuz Eylul University, Izmir, Turkey
| |
Collapse
|
6
|
Weimann A, Ahlert M, Seehofer D, Zieschang T, Schweda M. Old Age and Frailty in Deceased Organ Transplantation and Allocation-A Plea for Geriatric Assessment and Prehabilitation. Transpl Int 2023; 36:11296. [PMID: 37476294 PMCID: PMC10354295 DOI: 10.3389/ti.2023.11296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/21/2023] [Indexed: 07/22/2023]
Abstract
Due to demographic ageing and medical progress, the number and proportion of older organ donors and recipients is increasing. At the same time, the medical and ethical significance of ageing and old age for organ transplantation needs clarification. Advanced age is associated with the frailty syndrome that has a negative impact on the success of organ transplantation. However, there is emerging evidence that frailty can be modified by suitable prehabilitation measures. Against this backdrop, we argue that decision making about access to the transplant waiting list and the allocation of donor organs should integrate geriatric expertise in order to assess and manage frailty and impairments in functional capacity. Prehabilitation should be implemented as a new strategy for pre-operative conditioning of older risk patients' functional capacity. From an ethical point of view, advanced chronological age per se should not preclude the indication for organ transplantation and the allocation of donor organs.
Collapse
Affiliation(s)
- Arved Weimann
- Department of General, Visceral and Oncological Surgery, St. George Hospital, Leipzig, Germany
| | - Marlies Ahlert
- Department of Economics, Martin-Luther-University of Halle, Halle, Germany
| | - Daniel Seehofer
- Department of Visceral, Transplantation, Thoracic and Vascular Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Tania Zieschang
- Division of Geriatric Medicine, Department of Health Services Research, School of Medicine and Health Sciences, University of Oldenburg, Oldenburg, Germany
| | - Mark Schweda
- Division of Medical Ethics, Department of Health Services Research, School of Medicine and Health Sciences, University of Oldenburg, Oldenburg, Germany
| |
Collapse
|
7
|
Baez-Suarez Y, Garcia-Lopez A, Patino-Jaramillo N, Giron-Luque F. Clinical Outcomes in Living Donor Kidney Transplantation: A Single Center Experience in Latin America. Transplant Proc 2023; 55:1477-1483. [PMID: 36690505 DOI: 10.1016/j.transproceed.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/19/2022] [Indexed: 01/22/2023]
Abstract
BACKGROUND In Latin America, few reports are available about the clinical outcomes of living donor kidney transplants (LDKT). We aim to evaluate the main clinical outcomes for LDKT patients in a single center's experience. METHODS We retrospectively evaluated 530 LDKT patients who underwent transplantation from August 2008 to December 2020 at Colombiana de Trasplantes. Graft survival censored for death and patient survival were determined up to 5 years post-transplantation by the Kaplan-Meier method. Vascular and urinary complications, readmission, and reintervention rates were documented. RESULTS A total of 530 LDKT patients were analyzed. Most of the recipients were men (56%). There were 123 patients (23.2%) with a preemptive transplant. Panel reactive antibody type I and II had higher immunologic risk (>20%) in 15.9% of the patients. The donor mean age was 37.8 ± 11.5 years. Most of the donors were women (52.6%) and related to the recipient (69.1%). Multivariate analysis identified panel reactive antibody type II (P = 0.003), female donor (P = 0.001), surgical reintervention at 30 days post-transplantation (P < .01), and delayed graft function (P < .01) as risk factors for graft loss. The graft survival death-censored rates were 93.7% and 89% at 1 and 5 years, respectively. Patient survival rates were 97.0% and 94.1% at 1 and 5 years after transplantation, respectively. CONCLUSIONS The long-term graft and patient survival rates in our center are comparable to previous reports from other leading centers. The clinical outcomes from a medium-sized center can be noteworthy, although not entirely new.
Collapse
Affiliation(s)
- Yenny Baez-Suarez
- Department of Transplant Surgery, Colombiana de Trasplantes, Bogotá, Colombia
| | - Andrea Garcia-Lopez
- Department of Transplant Research, Colombiana de Trasplantes, Bogotá, Colombia.
| | | | | |
Collapse
|
8
|
Lorenz EC, Hickson LJ, Khairallah P, Najafi B, Kennedy CC. Cellular Senescence and Frailty in Transplantation. CURRENT TRANSPLANTATION REPORTS 2023; 10:51-59. [PMID: 37576589 PMCID: PMC10414789 DOI: 10.1007/s40472-023-00393-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 03/28/2023]
Abstract
Purpose of review To summarizes the literature on cellular senescence and frailty in solid-organ transplantation and highlight the emerging role of senotherapeutics as a treatment for cellular senescence. Recent findings Solid-organ transplant patients are aging. Many factors contribute to aging acceleration in this population, including cellular senescence. Senescent cells accumulate in tissues and secrete proinflammatory and profibrotic proteins which result in tissue damage. Cellular senescence contributes to age-related diseases and frailty. Our understanding of the role cellular senescence plays in transplant-specific complications such as allograft immunogenicity and infections is expanding. Promising treatments, including senolytics, senomorphics, cell-based regenerative therapies, and behavioral interventions, may reduce cellular senescence abundance and frailty in patients with solid-organ transplants. Summary Cellular senescence and frailty contribute to adverse outcomes in solid-organ transplantation. Continued pursuit of understanding the role cellular senescence plays in transplantation may lead to improved senotherapeutic approaches and better graft and patient outcomes.
Collapse
Affiliation(s)
| | - LaTonya J. Hickson
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, Florida
| | | | - Bijan Najafi
- Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine, Houston, Texas
| | - Cassie C. Kennedy
- Division of Pulmonary, Critical Care, and Sleep Medicine, Mayo Clinic, Rochester, Minnesota
| |
Collapse
|
9
|
Lorenz EC, Petterson TM, Zaniletti I, Lackore KA, Johnson BK, Mai ML, Nair SS, Bentall AJ, Yost KJ, Eton DT. Development and Validation of a Kidney-Transplant Specific Measure of Treatment Burden. BMC Nephrol 2022; 23:301. [PMID: 36057554 PMCID: PMC9440455 DOI: 10.1186/s12882-022-02923-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/12/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Treatment burden refers to the work involved in managing one's health and its impact on well-being and has been associated with nonadherence in patients with chronic illnesses. No kidney transplant (KT)-specific measure of treatment burden exists. The aim of this study was to develop a KT-specific supplement to the Patient Experience with Treatment and Self-Management (PETS), a general measure of treatment burden. METHODS After drafting and pretesting KT-specific survey items, we conducted a cross-sectional survey study involving KT recipients from Mayo Clinic in Minnesota, Arizona, and Florida. Exploratory factor analysis (EFA) was used to identify domains for scaling the KT-specific supplement. Construct and known-groups validity were determined. RESULTS Survey respondents (n = 167) had a mean age of 61 years (range 22-86) and received a KT on average 4.0 years ago. Three KT-specific scales were identified (transplant function, self-management, adverse effects). Higher scores on the KT-specific scales were correlated with higher PETS treatment burden, worse physical and mental health, and lower self-efficacy (p < 0.0001). Patients taking more medications reported higher transplant self-management burden. CONCLUSIONS We developed a KT-specific supplement to the PETS general measure of treatment burden. Scores may help providers identify recipients at risk for nonadherence.
Collapse
Affiliation(s)
- Elizabeth C Lorenz
- William J Von Liebig Center for Transplantation and Clinical Regeneration, Rochester, MN, USA.
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.
| | - Tanya M Petterson
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | | | - Kandace A Lackore
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Bradley K Johnson
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Martin L Mai
- William J Von Liebig Center for Transplantation and Clinical Regeneration, Rochester, MN, USA
- Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA
| | - Sumi S Nair
- William J Von Liebig Center for Transplantation and Clinical Regeneration, Rochester, MN, USA
- Mayo Clinic Transplant Center, Phoenix, AZ, USA
| | - Andrew J Bentall
- William J Von Liebig Center for Transplantation and Clinical Regeneration, Rochester, MN, USA
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Kathleen J Yost
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - David T Eton
- Division of Health Care Delivery Research, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
10
|
Naylor KL, Knoll GA, Slater J, McArthur E, Garg AX, Lam NN, Le B, Li AH, McCallum MK, Vinegar M, Kim SJ. Risk Factors and Outcomes of Early Hospital Readmission in Canadian Kidney Transplant Recipients: A Population-Based Multi-Center Cohort Study. Can J Kidney Health Dis 2021; 8:20543581211060926. [PMID: 34868610 PMCID: PMC8641113 DOI: 10.1177/20543581211060926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/18/2021] [Indexed: 11/29/2022] Open
Abstract
Background: Early hospital readmissions (EHRs) occur commonly in kidney transplant recipients. Conflicting evidence exists regarding risk factors and outcomes of EHRs. Objective: To determine risk factors and outcomes associated with EHRs (ie, hospitalization within 30 days of discharge from transplant hospitalization) in kidney transplant recipients. Design: Population-based cohort study using linked, administrative health care databases. Setting: Ontario, Canada. Patients: We included 5437 kidney transplant recipients from 2002 to 2015. Measurements: Risk factors and outcomes associated with EHRs. We assessed donor, recipient, and transplant risk factors. We also assessed the following outcomes: total graft failure, death-censored graft failure, death with a functioning graft, mortality, and late hospital readmission. Methods: We used multivariable logistic regression to examine the association of each risk factor and the odds of EHR. To examine the relationship between EHR status (yes vs no [reference]) and the outcomes associated with EHR (eg, total graft failure), we used a multivariable Cox proportional hazards model. Results: In all, 1128 kidney transplant recipients (20.7%) experienced an EHR. We found the following risk factors were associated with an increased risk of EHR: older recipient age, lower income quintile, several comorbidities, longer hospitalization for initial kidney transplant, and older donor age. After adjusting for clinical characteristics, compared to recipients without an EHR, recipients with an EHR had an increased risk of total graft failure (adjusted hazard ratio [aHR]: 1.46, 95% CI: 1.29, 1.65), death-censored graft failure (aHR: 1.62, 95% CI: 1.36, 1.94), death with graft function (aHR: 1.34, 95% CI: 1.13, 1.59), mortality (aHR: 1.41, 95% CI: 1.22, 1.63), and late hospital readmission in the first 0.5 years of follow-up (eg, 0 to <0.25 years: aHR: 2.11, 95% CI: 1.85, 2.40). Limitations: We were not able to identify which readmissions could have been preventable and there is a potential for residual confounding. Conclusions: Results can be used to identify kidney transplant recipients at risk of EHR and emphasize the need for interventions to reduce the risk of EHRs. Trial registration: This is not applicable as this is a population-based cohort study and not a clinical trial.
Collapse
Affiliation(s)
- Kyla L Naylor
- ICES, ON, Canada.,Department of Epidemiology & Biostatistics, Western University, London, ON, Canada
| | - Gregory A Knoll
- Department of Medicine (Nephrology), Ottawa Hospital Research Institute, ON, Canada
| | | | | | - Amit X Garg
- ICES, ON, Canada.,Department of Epidemiology & Biostatistics, Western University, London, ON, Canada.,Division of Nephrology, Western University, London, ON, Canada
| | - Ngan N Lam
- Division of Nephrology, University of Alberta, Calgary, Canada
| | | | | | | | | | - S Joseph Kim
- Division of Nephrology, University Health Network, University of Toronto, ON, Canada.,Toronto General Hospital, ON, Canada
| |
Collapse
|
11
|
Rampersad C, Darcel J, Harasemiw O, Brar RS, Komenda P, Rigatto C, Prasad B, Bohm C, Tangri N. Change in Physical Activity and Function in Patients with Baseline Advanced Nondialysis CKD. Clin J Am Soc Nephrol 2021; 16:1805-1812. [PMID: 34697092 PMCID: PMC8729498 DOI: 10.2215/cjn.07050521] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/14/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Although progressive decline in physical activity and function are common in individuals with worsening CKD, little is known about the effect of dialysis initiation on physical activity. We assessed for any association of progression to dialysis in people with advanced CKD with temporal rates of change in physical activity and function. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Canadian Frailty Observation and Interventions Trial (CanFIT) participants with an eGFR of <30 ml/min per 1.73 m2 were included. Outcomes included change in physical activity level, measured using the Physical Activity Scale for the Elderly, and physical function, measured using the chair stand, 4-m gait speed, and grip strength tests. Generalized linear regression models were conducted to determine whether dialysis initiation was associated with greater decline in physical activity or function. RESULTS Of 386 individuals, 162 progressed to dialysis. Both assessments were completed by 98% of individuals for the Physical Activity Scale for the Elderly, 86% for the chair stand test, 84% for the gait speed test, and 91% for the grip strength test. Median (interquartile range) interassessment follow-up was 427 (357-578) days for the "stable advanced CKD" group and 606 (428-1000) days for the "progressed to dialysis" group. Self-reported physical activity and gait speed significantly declined in both groups. Mean (SD) chair stand time increased from 20.8 (17.1) to 24.0 (21.0) seconds among patients with stable advanced CKD, and from 18.5 (15.4) to 27.4 (22.2) seconds among those who progressed to dialysis (adjusted difference in change, 5.2 seconds; 95% confidence interval, 0.8 to 9.7 seconds; P=0.02). CONCLUSIONS Patients with advanced CKD experience progressive declines in physical activity and function. Transition to dialysis is associated with accelerated decline in physical function, as measured by the chair stand test.
Collapse
Affiliation(s)
- Christie Rampersad
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Joseph Darcel
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Oksana Harasemiw
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Ranveer S. Brar
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Paul Komenda
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Claudio Rigatto
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Bhanu Prasad
- Regina Qu’Appelle Health Region, Regina General Hospital, Regina, Saskatchewan, Canada
| | - Clara Bohm
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Navdeep Tangri
- Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada,Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| |
Collapse
|
12
|
Ali H, Soliman K, Mohamed MM, Rahman M, Herberth J, Fülöp T, Elsayed I. Impact of kidney transplantation on functional status. Ann Med 2021; 53:1302-1308. [PMID: 34387134 PMCID: PMC8366639 DOI: 10.1080/07853890.2021.1962963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 07/27/2021] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND AND AIMS Functional capacity (FC) is known to affect morbidity and mortality in kidney transplantation. Despite this important role, little is known about the variables influencing post-transplant FC. Our study aims at identifying these crucial associations. METHOD Our study included 16,684 renal transplant recipients (RTR). Patients had transplant between 1 September 2018 and 1 September 2019. Mild functional impairment was defined as those with a KPSS score > or = 80; moderate functional impairment was defined as those with a KPSS score between 50 and 70 and severe functional impairment was defined as those with a KPSS score < or =40. The outcome measured was FC at follow-up one-year post-transplant. Abnormal FC at follow-up was defined as those with KPSS score less than 80%. Normal FC at follow-up was defined as those with KPSS score equal or above 80%. Multivariate logistic regression was used to assess with the relationship between patient characteristics and abnormal functional status post-transplant. RESULTS Three groups were identified; those with none-to-mild functional impairment at time of transplant (Group A; n = 8388), those who had moderate impairment at time of transplant (Group B; n = 7694) and those who had severe impairment at time of transplant (Group C; n = 602). Abnormal FC at one-year post transplant was present in 7.69%, 28.89%, 49.49% of patients in group A, B and C, respectively. Glucocorticoid withdrawal was associated with lower risk of developing abnormal FC post-transplant (OR = 0.75, p value = .02, 95% confidence intervals: 0.64 to 0.97), while recipient diabetes was associated with higher risk of abnormal FC (OR = 1.44, p value <.01, 95% confidence intervals: 1.20 to 1.74) in adjusted model. CONCLUSION Kidney transplantation is associated with substantial improvement in all stages of FC in KTRs. Glucocorticoid withdrawal and diabetes mellitus are potentially modifiable factors of FC and merit further considerations during pre-transplant workup and post-transplant immunosuppressive therapeutic planning.Key messagesKidney transplantation is associated with substantial improvement in all stages of FC in KTRs.Glucocorticoid withdrawal and diabetes mellitus are potentially modifiable factors of FC and merit further considerations during pre-transplant workup and post-transplant immunosuppressive therapeutic planning.
Collapse
Affiliation(s)
- Hatem Ali
- Renal Department, University Hospitals of Coventry and Warwickshire, Coventry, UK
| | - Karim Soliman
- Department of Medicine, Division of Nephrology, Medical University of South Carolina, Charleston, SC, USA
- Department of Medicine, Division of Nephrology, Cairo University, Giza, Egypt
| | - Mahmoud M. Mohamed
- Department of Medicine, Division of Nephrology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Manzur Rahman
- Department of Renal Medicine, Royal Stoke University Hospitals, Stoke-on-Trent, UK
| | - Johann Herberth
- Medicine Services, Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Tibor Fülöp
- Department of Medicine, Division of Nephrology, Medical University of South Carolina, Charleston, SC, USA
- Medicine Services, Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Ingi Elsayed
- Department of Renal Medicine, Royal Stoke University Hospitals, Stoke-on-Trent, UK
| |
Collapse
|
13
|
Lorenz EC, Kennedy CC, Rule AD, LeBrasseur NK, Kirkland JL, Hickson LJ. Frailty in CKD and Transplantation. Kidney Int Rep 2021; 6:2270-2280. [PMID: 34514190 PMCID: PMC8418946 DOI: 10.1016/j.ekir.2021.05.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 12/20/2022] Open
Abstract
The population is aging. Although older adults have higher rates of comorbidities and adverse health events, they represent a heterogeneous group with different health trajectories. Frailty, a clinical syndrome of decreased physiological reserve and increased susceptibility to illness and death, has emerged as a potential risk stratification tool in older patients with chronic kidney disease (CKD). Frailty is commonly observed in patients with CKD and associated with numerous adverse outcomes, including falls, decreased quality of life, hospitalizations, and death. Multiple pathologic factors contribute to the development of frailty in patients with CKD, including biological mechanisms of aging and physiological dysregulation. Current interventions to reduce frailty are promising, but additional investigations are needed to determine whether optimizing frailty measures improves renal and overall health outcomes. This review of frailty in CKD examines frailty definitions, the impact of frailty on health outcomes across the CKD spectrum, mechanisms of frailty, and antifrailty interventions (e.g., exercise or senescent cell clearance) tested in CKD patients. In addition, existing knowledge gaps, limitations of current frailty definitions in CKD, and challenges surrounding effective antifrailty strategies in CKD are considered.
Collapse
Affiliation(s)
- Elizabeth C Lorenz
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA.,William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA
| | - Cassie C Kennedy
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA.,Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Andrew D Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Nathan K LeBrasseur
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - LaTonya J Hickson
- Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, Florida, USA
| |
Collapse
|
14
|
Physical Function in Kidney Transplantation: Current Knowledge and Future Directions. CURRENT TRANSPLANTATION REPORTS 2021; 7:46-55. [PMID: 33457184 DOI: 10.1007/s40472-020-00271-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose of review Low physical function (PF) is common among individuals with end-stage kidney disease. In this review, we explore data on the impacts of PF on access to kidney transplantation (KT) and KT outcomes. We also discuss the latest interventions to improve PF in pre- and post-KT settings. Recent Findings Many US KT programs measure PF or related constructs when assessing KT candidacy. Although carefully selected KT candidates with low PF can benefit from KT with respect to survival and quality of life, low PF decreases the likelihood of being listed for KT and increases the risk of adverse post-KT outcomes. Recent trials suggest that exercise is a promising strategy to improve PF among KT candidates and recipients. Summary PF is a potentially modifiable risk factor for adverse pre- and post-KT outcomes. Research is needed to determine the ideal PF metric for use in KT evaluations and interventions to improve PF.
Collapse
|
15
|
Mayer KP, Henning AN, Gaines KM, Cassity EP, Morris PE, Villasante Tezanos AG, Johnson CA, Lee JT, Baz M, Dupont-Versteegden EE. Physical Function Measured Prior to Lung Transplantation Is Associated With Posttransplant Patient Outcomes. Transplant Proc 2020; 53:288-295. [PMID: 32950260 DOI: 10.1016/j.transproceed.2020.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/15/2020] [Accepted: 07/11/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The primary objective of this study was to determine whether pretransplant physical function is correlated with posttransplantation outcomes. METHODS We performed a retrospective study of patients that participated in pretransplantation screening and subsequently underwent lung transplantation. Pretransplant variables of interest included demographics, muscle mass, body composition, physical function, and physical frailty. Correlation tests were performed to assess relationships with significance set at 0.05. RESULTS Twenty-five patients with a mean age of 57 ± 13 years (68% male) with pretransplant lung allocation score of 45 ± 14 were included. This cohort had a 3-year mortality rate of 32% (n = 8). Pretransplant 4-m gait speed was significantly related to performance on the Short Physical Performance Battery (r = 0.74, P = .02) and distance ambulated on the 6-minute walk test (r = 0.62, P = .07) at hospital discharge. Older age was associated with slower gait speed and worse performance on sit-to-stand testing at hospital discharge (r = -0.76, P = .01 and r = -0.75, P = .01, respectively). Statistically, only diagnosis of cystic fibrosis was associated with 3-year mortality. DISCUSSION Our study demonstrates that demographic, clinical, and physical function assessed prior to lung transplantation may be indicators of functional recovery.
Collapse
Affiliation(s)
- Kirby P Mayer
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, Kentucky.
| | - Angela N Henning
- Inpatient Rehabilitation Department, Chandler Medical Center, University of Kentucky, Lexington, Kentucky
| | - Kathryn M Gaines
- Inpatient Rehabilitation Department, Chandler Medical Center, University of Kentucky, Lexington, Kentucky
| | - Evan P Cassity
- Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Kentucky, Lexington, Kentucky
| | - Peter E Morris
- Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Kentucky, Lexington, Kentucky
| | | | - Carrie A Johnson
- Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Kentucky, Lexington, Kentucky
| | - James T Lee
- Department of Radiology, University of Kentucky, Lexington, Kentucky
| | - Maher Baz
- Cardiovascular and Thoracic Surgery, Lung Transplant, University of Kentucky, Lexington, Kentucky
| | | |
Collapse
|
16
|
Tennankore KK, Gunaratnam L, Suri RS, Yohanna S, Walsh M, Tangri N, Prasad B, Gogan N, Rockwood K, Doucette S, Sills L, Kiberd B, Keough-Ryan T, West K, Vinson A. Frailty and the Kidney Transplant Wait List: Protocol for a Multicenter Prospective Study. Can J Kidney Health Dis 2020; 7:2054358120957430. [PMID: 32963793 PMCID: PMC7488612 DOI: 10.1177/2054358120957430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/15/2020] [Indexed: 01/06/2023] Open
Abstract
Background: Understanding how frailty affects patients listed for transplantation has
been identified as a priority research need. Frailty may be associated with
a high risk of death or wait-list withdrawal, but this has not been
evaluated in a large multicenter cohort of Canadian wait-listed
patients. Objective: The primary objective is to evaluate whether frailty is associated with death
or permanent withdrawal from the transplant wait list. Secondary objectives
include assessing whether frailty is associated with hospitalization,
quality of life, and the probability of being accepted to the wait list. Design: Prospective cohort study. Setting: Seven sites with established renal transplant programs that evaluate patients
for the kidney transplant wait list. Patients: Individuals who are being considered for the kidney transplant wait list. Measurements: We will assess frailty using the Fried Phenotype, a frailty index, the Short
Physical Performance Battery, and the Clinical Frailty Scale at the time of
listing for transplantation. We will also assess frailty at the time of
referral to the wait list and annually after listing in a subgroup of
patients. Methods: The primary outcome of the composite of time to death or permanent wait-list
withdrawal will be compared between patients who are frail and those who are
not frail and will account for the competing risks of deceased and live
donor transplantation. Secondary outcomes will include number of
hospitalizations and length of stay, and in a subset, changes in frailty
severity over time, change in quality of life, and the probability of being
listed. Recruitment of 1165 patients will provide >80% power to identify
a relative hazard of ≥1.7 comparing patients who are frail to those who are
not frail for the primary outcome (2-sided α = .05), whereas a more
conservative recruitment target of 624 patients will provide >80% power
to identify a relative hazard of ≥2.0. Results: Through December 2019, 665 assessments of frailty (inclusive of those for the
primary outcome and all secondary outcomes including repeated measures) have
been completed. Limitations: There may be variation across sites in the processes of referral and listing
for transplantation that will require consideration in the analysis and
results. Conclusions: This study will provide a detailed understanding of the association between
frailty and outcomes for wait-listed patients. Understanding this
association is necessary before routinely measuring frailty as part of the
wait-list eligibility assessment and prior to ascertaining the need for
interventions that may modify frailty. Trial Registration: Not applicable as this is a protocol for a prospective observational
study.
Collapse
Affiliation(s)
- Karthik K Tennankore
- Division of Nephrology, Department of Medicine, Dalhousie University & Nova Scotia Health Authority, Halifax, Canada
| | - Lakshman Gunaratnam
- Division of Nephrology, Department of Medicine, Western University, London, ON, Canada
| | - Rita S Suri
- Division of Nephrology and Research Institute, Department of Medicine, McGill University/Centre de Recherche de l'Université de Montréal, QC, Canada
| | | | - Michael Walsh
- Departments of Medicine and Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada.,Population Health Research Institute, Hamilton Health Sciences/McMaster University, ON, Canada.,St. Joseph's Healthcare Hamilton, ON, Canada
| | - Navdeep Tangri
- Department of Medicine and Department of Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
| | | | - Nessa Gogan
- Division of Nephrology, Department of Medicine, Horizon Health Network, Dalhousie University, Saint John, NB, Canada
| | - Kenneth Rockwood
- Division of Geriatric Medicine, Department of Medicine, Department of Community Health and Epidemiology, School of Health Administration, Halifax, NS, Canada
| | - Steve Doucette
- Research Methods Unit, Nova Scotia Health Authority, Halifax, Canada
| | - Laura Sills
- Multi-Organ Transplant Program, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada
| | | | - Tammy Keough-Ryan
- Division of Nephrology, Department of Medicine, Dalhousie University & Nova Scotia Health Authority, Halifax, Canada
| | - Kenneth West
- Division of Nephrology, Department of Medicine, Dalhousie University & Nova Scotia Health Authority, Halifax, Canada
| | - Amanda Vinson
- Division of Nephrology, Department of Medicine, Dalhousie University & Nova Scotia Health Authority, Halifax, Canada
| |
Collapse
|
17
|
Wu HH, Woywodt A, Nixon AC. Frailty and the Potential Kidney Transplant Recipient: Time for a More Holistic Assessment? KIDNEY360 2020; 1:685-690. [PMID: 35372945 PMCID: PMC8815542 DOI: 10.34067/kid.0001822020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 05/22/2020] [Indexed: 06/14/2023]
Affiliation(s)
- Henry H.L. Wu
- Department of Renal Medicine, Lancashire Teaching Hospitals National Health Service Foundation Trust, Royal Preston Hospital, Preston, United Kingdom
- Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
| | - Alexander Woywodt
- Department of Renal Medicine, Lancashire Teaching Hospitals National Health Service Foundation Trust, Royal Preston Hospital, Preston, United Kingdom
- Faculty of Medical and Human Sciences, University of Manchester, Manchester, United Kingdom
| | - Andrew C. Nixon
- Department of Renal Medicine, Lancashire Teaching Hospitals National Health Service Foundation Trust, Royal Preston Hospital, Preston, United Kingdom
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
| |
Collapse
|
18
|
Lorenz EC, Hickson LJ, Weatherly RM, Thompson KL, Walker HA, Rasmussen JM, Stewart TL, Garrett JK, Amer H, Kennedy CC. Protocolized exercise improves frailty parameters and lower extremity impairment: A promising prehabilitation strategy for kidney transplant candidates. Clin Transplant 2020; 34:e14017. [PMID: 32573816 DOI: 10.1111/ctr.14017] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/28/2020] [Accepted: 06/13/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Frailty and decreased functional status are risk factors for adverse kidney transplant (KT) outcomes. Our objective was to examine the efficacy of an exercise intervention on frailty and decreased functional status in a cohort of patients with advanced chronic kidney disease (CKD). METHODS We conducted a prospective study involving 21 adults with ≥stage 4 CKD who were (a) frail or pre-frail by Fried phenotype and/or (b) had lower extremity impairment [short physical performance battery score ≤10]. The intervention consisted of two supervised outpatient exercise sessions per week for 8 weeks. RESULTS Among our cohort, median participant age was 62 years (interquartile range, 53-67) and 85.7% had been evaluated for KT. Following the study, participants reported satisfaction with the intervention and multiple frailty parameters improved significantly, including fatigue, physical activity, walking time, and grip strength. Lower extremity impairment also improved (90.5%-61.9%, P = .03). No study-related adverse events occurred. CONCLUSIONS Preliminary data from this study suggest that a supervised, outpatient exercise intervention is safe, acceptable, feasible, and associated with improved frailty parameters, and lower extremity function, in patients with advanced CKD. Further studies are needed to confirm these findings and determine whether this prehabilitation strategy improves KT outcomes.
Collapse
Affiliation(s)
- Elizabeth C Lorenz
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.,William J von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA.,Mayo Clinic Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - LaTonya J Hickson
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.,Mayo Clinic Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - Renee M Weatherly
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Karin L Thompson
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Heidi A Walker
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Judy M Rasmussen
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Tara L Stewart
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - James K Garrett
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Hatem Amer
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.,William J von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA
| | - Cassie C Kennedy
- William J von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, USA.,Mayo Clinic Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA.,Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
19
|
Nguyen MC, Avila CL, Brock GN, Benedict JA, James I, El-Hinnawi A, Rajab A, Elkhammas E, Pelletier RP, Henry M, Bumgardner GL. "Early" and "Late" Hospital readmissions in the first year after kidney transplant at a single center. Clin Transplant 2020; 34:e13822. [PMID: 32037573 DOI: 10.1111/ctr.13822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hospital readmission (HR) after surgery is considered a quality metric. METHODS Data on 2371 first-time adult kidney transplant (KT) recipients were collected to analyze the "early" (≤30 days) and "late" (31-365 days) HR patterns after KT at a single center over a 12-year time span (2002-2013). RESULTS 30-day, 90-day, and 1-year HR were 31%, 41%, and 53%, respectively. Risk factors for HR included age >50, female sex, black race, BMI >30, transplant LOS >5 days, and pre-transplant time on dialysis >765 days. Indications for early (n = 749) and late (n = 508) HR were similar. Early HR (OR: 3.80, P = .007) and black race (OR: 2.38, P = .009) were associated with higher odds of 1-year graft failure while frequency (1-2, 3-4, 5+) of HR (ORs: 4.68, 8.36, 9.44, P < .001) and age > 50 (OR: 2.11, P = .007) were associated with higher odds of 1-year mortality. Transplant LOS > 5 days increased both odds of 1-year graft failure (OR: 3.51, P = .001) and mortality (OR: 2.05, P = .006). One-year graft and recipient survival were 96.7% and 94.8%, respectively. CONCLUSIONS Hospital readmission was associated with reduced graft and patient survival; however, despite a relatively high and consistent HR rate after KT, overall 1-year graft and patient survival was high.
Collapse
Affiliation(s)
- Michelle C Nguyen
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Christina L Avila
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio.,Medical Student Research Program, The Ohio State University College of Medicine, Columbus, Ohio
| | - Guy N Brock
- Center for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Jason A Benedict
- Center for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Iyore James
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Ashraf El-Hinnawi
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Amer Rajab
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Elmahdi Elkhammas
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Ronald P Pelletier
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Mitchell Henry
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| | - Ginny L Bumgardner
- Division of Transplant Surgery and Comprehensive Transplant Center, Department of Surgery, The Ohio State University, Columbus, Ohio
| |
Collapse
|
20
|
Yamagata K, Hoshino J, Sugiyama H, Hanafusa N, Shibagaki Y, Komatsu Y, Konta T, Fujii N, Kanda E, Sofue T, Ishizuka K, Kitagawa M, Kono K, Hinamoto N, Miyai T, Koike K, Toda S, Hasegawa J, Yamanouchi M, Yoshimura R, Ishii R, Goto S, Kawarazaki H, Takase K, Taki F, Matsumura M, Raita Y, Sakurai S, Shimizu T, Yamanoto S, Kawaguchi T, Oguchi H, Tsujita M, Yazawa M, Uchida A, Ando Y, Kaneko S, Matsunaga A, Harada T, Ito O, Kohzuki M. Clinical practice guideline for renal rehabilitation: systematic reviews and recommendations of exercise therapies in patients with kidney diseases. RENAL REPLACEMENT THERAPY 2019. [DOI: 10.1186/s41100-019-0209-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
|
21
|
Zhang W, Yi Z, Wei C, Keung KL, Sun Z, Xi C, Woytovich C, Farouk S, Gallon L, Menon MC, Magee C, Najafian N, Samaniego MD, Djamali A, Alexander SI, Rosales IA, Smith RN, O'Connell PJ, Colvin R, Cravedi P, Murphy B. Pretransplant transcriptomic signature in peripheral blood predicts early acute rejection. JCI Insight 2019; 4:127543. [PMID: 31167967 DOI: 10.1172/jci.insight.127543] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 04/23/2019] [Indexed: 12/19/2022] Open
Abstract
Commonly available clinical parameters fail to predict early acute cellular rejection (EAR, occurring within 6 months after transplant), a major risk factor for graft loss after kidney transplantation. We performed whole-blood RNA sequencing at the time of transplant in 235 kidney transplant recipients enrolled in a prospective cohort study (Genomics of Chronic Allograft Rejection [GoCAR]) and evaluated the relationship of pretransplant transcriptomic profiles with EAR. EAR was associated with downregulation of NK and CD8+ T cell gene signatures in pretransplant blood. We identified a 23-gene set that predicted EAR in the discovery (n = 81, and AUC = 0.80) and validation (n = 74, and AUC = 0.74) sets. Exclusion of recipients with 5 or 6 HLA donor mismatches increased the AUC to 0.89. The risk score derived from the gene set was also significantly associated with acute cellular rejection after 6 months, antibody-mediated rejection and/or de novo donor-specific antibodies, and graft loss in a cohort of 154 patients, combining the validation set and additional GoCAR patients with surveillance biopsies between 6 and 24 months (n = 80) posttransplant. This 23-gene set is a potentially important new tool for determination of the recipient's immunological risk before kidney transplantation, and facilitation of an individualized approach to immunosuppressive therapy.
Collapse
Affiliation(s)
- Weijia Zhang
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Zhengzi Yi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Chengguo Wei
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Karen L Keung
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Zeguo Sun
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Caixia Xi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christopher Woytovich
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Samira Farouk
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Lorenzo Gallon
- Department of Medicine-Nephrology and Surgery-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Madhav C Menon
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ciara Magee
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Nader Najafian
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | | | - Arjang Djamali
- Division of Nephrology, Department of Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Stephen I Alexander
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Ivy A Rosales
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Rex Neal Smith
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Philip J O'Connell
- Department of Medicine, Westmead Clinical School, The University of Sydney, Sydney, Australia
| | - Robert Colvin
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Paolo Cravedi
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Barbara Murphy
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| |
Collapse
|
22
|
Broers NJH, Fung TY, Kooman JP, Christiaans MHL. Living-donor transplantation leads to a major improvement in physical functioning: an observational study on the impact on potential donors and their recipients. BMC Nephrol 2019; 20:109. [PMID: 30922268 PMCID: PMC6440145 DOI: 10.1186/s12882-019-1299-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/17/2019] [Indexed: 12/27/2022] Open
Abstract
Background Prospective studies combining physical functioning (PF), physical activity (PA), and body composition (BC) after living donor transplantation/donation are scarce. We aimed to study differences in these parameters between kidney transplant recipients and their living donors by examining changes in these parameters in the first post-operative year in both groups. Methods Twenty-two kidney transplant recipients and 22 healthy kidney donors were included in this prospective longitudinal study with a follow-up until twelve months. PF was assessed by handgrip strength (HGS), and by the physical domains of health-related quality of life (HRQOL) using the Short Form-36 questionnaire [PF (SF-36 PF) and physical component summary (PCS) score]. BC was measured by the Body Composition Monitor©, and PA was measured by the SenseWear™ pro3. Results At baseline, recipients had significantly lower HGS (after adjustment for sex and body weight), SF-36 PF, PCS, and PA, as compared with their donors. In recipients HGS significantly increased in the first year after transplantation, but PA did not change in the first six months after transplantation. Furthermore, no significant increase in lean tissue mass was observed. For healthy donors no significant changes in these parameters were observed, with exception of SF-36 PF, which declined in the first three months after donation, but equaled baseline values after twelve months. Conclusion Recipients showed impressive improvements in PF and the physical domains of HRQOL in the first year after transplantation, reaching levels of healthy kidney donors already three to six months after transplantation. On the contrary, living kidney donation did not show any deterioration of the investigated parameters, supporting little impact for well-screened donors, while there is high benefit for transplant recipients.
Collapse
Affiliation(s)
- Natascha J H Broers
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, PO Box 5800, 6202 AZ, Maastricht, The Netherlands. .,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
| | - Tsz Yeung Fung
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, PO Box 5800, 6202 AZ, Maastricht, The Netherlands
| | - Jeroen P Kooman
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, PO Box 5800, 6202 AZ, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Maarten H L Christiaans
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, PO Box 5800, 6202 AZ, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| |
Collapse
|
23
|
Lorenz EC, Cosio FG, Bernard SL, Bogard SD, Bjerke BR, Geissler EN, Hanna SW, Kremers WK, Cheng Y, Stegall MD, Cheville AL, LeBrasseur NK. The Relationship Between Frailty and Decreased Physical Performance With Death on the Kidney Transplant Waiting List. Prog Transplant 2019; 29:108-114. [PMID: 30879429 DOI: 10.1177/1526924819835803] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Frailty and decreased physical performance are associated with poor outcomes after kidney transplant. Less is known about their relationship with pretransplant outcomes. The aim of this study was to characterize associations between frailty and physical performance with death on the kidney transplant waiting list. DESIGN Since December 2014, high-risk kidney transplant candidates at our center (age > 59, diabetic and/or history of >3 years dialysis) have undergone frailty and physical performance testing using Fried Criteria and the Short Physical Performance Battery. RESULTS Between December 2014 and November 2016, 272 high-risk candidates underwent testing and were approved for transplant. Both frailty and physical performance score were significantly associated with death on the waiting list (hazard ratio [HR]: 6.7, confidence interval [CI]: 1.5-30.1; P = .01; HR: 0.8 per 1-point increase, CI: 0.7-1.0; P = .02, respectively). The relationship between frailty, physical performance score, and death on the waiting list appeared to be independent of age, diabetes, or duration of dialysis. DISCUSSION Frailty and decreased physical performance appear to be independently associated with increased mortality on the kidney transplant waiting list. Further studies are needed to determine whether improving frailty and physical performance prior to transplant can decrease waiting list mortality.
Collapse
Affiliation(s)
- Elizabeth C Lorenz
- 1 Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Fernando G Cosio
- 1 Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Shari L Bernard
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Steven D Bogard
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Brian R Bjerke
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Elizabeth N Geissler
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Steven W Hanna
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Walter K Kremers
- 3 Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Yijing Cheng
- 3 Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Mark D Stegall
- 4 Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Andrea L Cheville
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Nathan K LeBrasseur
- 2 Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
24
|
Abstract
End-stage renal disease patients who have impaired physical function are denied for transplantation by clinicians concerned about graft/survival outcomes. The purpose of this study was to determine the impact of physical function on graft/survival outcomes at 1-year post-kidney transplantation. Data were analyzed from the Scientific Registry of Transplant Recipients regarding kidney transplantation patients (N = 218,657) between January 1, 2000 and September 2, 2014. The hazard ratio of 1-year graft failure for deceased donor transplantation recipients needing total assistance was 1.60 (95% confidence interval [CI] = [1.303, 1.965], p < .01). Patients needing none or some assistance did not demonstrate a significant difference in 1-year graft failure in either deceased or living donor transplantation. The hazard ratio of 1-year death for those needing total assistance was 2.52 (95% CI = [2.087, 3.045], p < .001) in deceased donor kidney transplantation.
Collapse
Affiliation(s)
- Jongwon Yoo
- Loyola University Medical Center, Maywood, IL, USA.,The University of Illinois at Chicago, IL, USA
| | | | | |
Collapse
|
25
|
Nastasi AJ, Bryant TS, Le JT, Schrack J, Ying H, Haugen CE, Fernández MG, Segev DL, McAdams-DeMarco MA. Pre-kidney transplant lower extremity impairment and transplant length of stay: a time-to-discharge analysis of a prospective cohort study. BMC Geriatr 2018; 18:246. [PMID: 30340462 PMCID: PMC6194663 DOI: 10.1186/s12877-018-0940-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/09/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Few objective tests can be performed at admission for kidney transplantation [KT] to discern risk of increased length of stay [LOS], which is important for patient counseling and is associated with increased costs and mortality. The short physical performance battery [SPPB] is an easily administered, potentially modifiable, 3-part test of lower extremity function. SPPB score is associated with longer hospital LOS in older adults, and may provide similar utility in KT recipients given that ESRD is a disease of accelerated aging. The aim of this study was to characterize the association between SPPB-derived lower extremity function and LOS. METHODS The SPPB was administered at KT admission in a prospective cohort of 595 recipients (8/2009-6/2016). The independent association between SPPB impairment (score ≤ 10) and LOS was tested with an adjusted conventional generalized gamma parametric survival model. RESULTS Impaired recipients experienced longer LOS (median: 10 vs. 8 days; P < 0.001) with the greatest difference in percent discharged on day 10 (impaired: 54.5%, unimpaired: 73.3%). Discharge typically took 13% longer in the impaired group (relative time = 1.13; 95%CI: 1.05, 1.21, P = 0.001). Discharge for impaired recipients compared to unimpaired was least likely at day 5 (hazard ratio = 0.71; 95% CI:0.68, 0.74, P < 0.001). No differences in the SPPB impairment-LOS relationship were found by age (interaction P = 0.74). CONCLUSIONS Pre-KT SPPB impairment was independently associated with longer LOS regardless of age, indicating that it is a useful, objective tool for pre-KT risk assessment in younger and older recipients that may help inform discharge planning.
Collapse
Affiliation(s)
- Anthony J. Nastasi
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, MD USA
| | - Tyler S. Bryant
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
| | - Jimmy T. Le
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
| | - Jennifer Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
| | - Hao Ying
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, MD USA
| | | | - Marlís González Fernández
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Dorry L. Segev
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, MD USA
| | - Mara A. McAdams-DeMarco
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205 USA
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, MD USA
| |
Collapse
|
26
|
Dziewanowski K, Myślak M, Drozd R, Krzystolik E, Krzystolik A, Ostrowski M, Droździk M, Tejchman K, Kozdroń K, Sieńko J. Factors Influencing Long-Term Survival of Kidney Grafts Transplanted From Deceased Donors-Analysis Based on a Single-Center Experience. Transplant Proc 2018; 50:1281-1284. [PMID: 29880347 DOI: 10.1016/j.transproceed.2018.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/19/2017] [Accepted: 03/01/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND Kidney transplantation is a routine procedure in the treatment of patients with kidney failure and requires collaboration of experts from different disciplines. Improvements in the procedure result from numerous factors. METHODS The analyzed group consisted of 150 patients divided into 2 equal subgroups: long-term (>15 years) and short-term (<6 years) graft survival. The following factors were taken into consideration: graft survival time, HLA mismatches, recipient sex, sex compatibility, panel reactive antibodies (PRA), cold ischemia time (CIT), and cause of kidney insufficiency. Factors were analyzed in groups with the use of Student t and chi-square tests, Kruskal-Wallis analysis of variance (ANOVA), and multifactorial ANOVA. RESULTS Basic statistical analysis revealed no significance between long-term and short-term survival groups in HLA mismatches, recipient sex, or sex compatibility. There was a very significant difference in CIT. ANOVA revealed no statistical difference between groups in recipient sex, sex compatibility, or recipient disease. There were more patients in the group with long-term survival with lower PRA. There were more women in the group with long-term survival who received kidneys from men. Multifactorial analysis revealed no interactions or independent influence of the selected factors. CONCLUSIONS CIT was a strong independent factor influencing graft survival. Recipient sex and cause of kidney insufficiency seemed to have no impact. Lower PRA was positively correlated with long-term survival. Women who received kidneys from men lived longer with functioning grafts.
Collapse
Affiliation(s)
- K Dziewanowski
- Center of Nephrology and Kidney Transplantation, Regional Hospital, Szczecin, Poland
| | - M Myślak
- Center of Nephrology and Kidney Transplantation, Regional Hospital, Szczecin, Poland
| | - R Drozd
- Center of Nephrology and Kidney Transplantation, Regional Hospital, Szczecin, Poland
| | - E Krzystolik
- Center of Nephrology and Kidney Transplantation, Regional Hospital, Szczecin, Poland
| | - A Krzystolik
- Department of Cardiology, Regional Hospital, Szczecin, Poland
| | - M Ostrowski
- Department of General Surgery and Transplantation, Pomeranian Medical University, Szczecin, Poland
| | - M Droździk
- Department of Clinical and Experimental Pharmacology, Pomeranian Medical University, Szczecin, Poland
| | - K Tejchman
- Department of General Surgery and Transplantation, Pomeranian Medical University, Szczecin, Poland.
| | - K Kozdroń
- Department of Cardiology, Regional Hospital, Szczecin, Poland
| | - J Sieńko
- Department of Cardiology, Regional Hospital, Szczecin, Poland
| |
Collapse
|
27
|
Nastasi AJ, McAdams-DeMarco MA, Schrack J, Ying H, Olorundare I, Warsame F, Mountford A, Haugen CE, Fernández MG, Norman SP, Segev DL. Pre-Kidney Transplant Lower Extremity Impairment and Post-Kidney Transplant Mortality. Am J Transplant 2018; 18:189-196. [PMID: 28710900 PMCID: PMC5739948 DOI: 10.1111/ajt.14430] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/30/2017] [Accepted: 06/30/2017] [Indexed: 01/25/2023]
Abstract
Prediction models for post-kidney transplantation mortality have had limited success (C-statistics ≤0.70). Adding objective measures of potentially modifiable factors may improve prediction and, consequently, kidney transplant (KT) survival through intervention. The Short Physical Performance Battery (SPPB) is an easily administered objective test of lower extremity function consisting of three parts (balance, walking speed, chair stands), each with scores of 0-4, for a composite score of 0-12, with higher scores indicating better function. SPPB performance and frailty (Fried frailty phenotype) were assessed at admission for KT in a prospective cohort of 719 KT recipients at Johns Hopkins Hospital (8/2009 to 6/2016) and University of Michigan (2/2013 to 12/2016). The independent associations between SPPB impairment (SPPB composite score ≤10) and composite score with post-KT mortality were tested using adjusted competing risks models treating graft failure as a competing risk. The 5-year posttransplantation mortality for impaired recipients was 20.6% compared to 4.5% for unimpaired recipients (p < 0.001). Impaired recipients had a 2.30-fold (adjusted hazard ratio [aHR] 2.30, 95% confidence interval [CI] 1.12-4.74, p = 0.02) increased risk of postkidney transplantation mortality compared to unimpaired recipients. Each one-point decrease in SPPB score was independently associated with a 1.19-fold (95% CI 1.09-1.30, p < 0.001) higher risk of post-KT mortality. SPPB-derived lower extremity function is a potentially highly useful and modifiable objective measure for pre-KT risk prediction.
Collapse
Affiliation(s)
- Anthony J. Nastasi
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland,Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Mara A. McAdams-DeMarco
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland,Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Jennifer Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Hao Ying
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Israel Olorundare
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Fatima Warsame
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Alexandra Mountford
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Christine E. Haugen
- Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Marlís González Fernández
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Silas P. Norman
- Department of Internal Medicine, Division of Nephrology, University of Michigan School of Medicine, Ann Arbor, MI
| | - Dorry L. Segev
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland,Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| |
Collapse
|
28
|
Corrigendum. Clin Transplant 2017; 31. [DOI: 10.1111/ctr.13044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|