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Ito W, Uchiyama K, Mitsuno R, Sugita E, Nakayama T, Ryuzaki T, Takahashi R, Katsumata Y, Hayashi K, Kanda T, Washida N, Sato K, Itoh H. Correlation between acylcarnitine/free carnitine ratio and cardiopulmonary exercise test parameters in patients with incident dialysis. Front Physiol 2023; 14:1155281. [PMID: 36960161 PMCID: PMC10027696 DOI: 10.3389/fphys.2023.1155281] [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: 01/31/2023] [Accepted: 02/22/2023] [Indexed: 03/09/2023] Open
Abstract
Objective: Diminished physical capacity is common and progressive in patients undergoing dialysis, who are also prone to deficiency in carnitine, which plays a pivotal role in maintaining skeletal muscle and cardiac function. The present study aimed to evaluate the association of carnitine profile with exercise parameters in patients with incident dialysis. Design and Methods: This was a single-center cross-sectional study including 87 consecutive patients aged 20-90 years who were initiated on dialysis in Keio University Hospital between December 2019 and December 2022 and fulfilled the eligibility criteria. Exercise parameters were evaluated via cardiopulmonary testing (CPX) using the electronically braked STRENGTH ERGO 8 ergometer, whereas the carnitine profile was assessed by determining serum free carnitine (FC), acylcarnitine (AC) levels and AC/FC ratio. Results: The mean cohort age was 62.1 ± 15.2 years, with male and hemodialysis predominance (70% and 73%, respectively). AC/FC was 0.46 ± 0.15, and CPX revealed peak oxygen consumption (VO2) of 13.9 ± 3.7 (mL/kg/min) with percent-predicted peak VO2 of 53.6% ± 14.7% and minute ventilation (VE)/carbon dioxide output (VCO2) slope of 35.1 ± 8.0. Fully-adjusted multivariate linear regression analysis showed that AC/FC was significantly associated with decreased peak VO2 (β, -5.43 [95% confidence interval (CI), -10.15 to -0.70]) and percent-predicted peak VO2 (β, -19.98 [95% CI, -38.43 to -1.52]) and with increased VE/VCO2 slope (β, 13.76 [95% CI, 3.78-23.75]); FC and AC did not exhibit similar associations with these parameters. Moreover, only AC/FC was associated with a decreased peak work rate (WR), percent-predicted WR, anaerobic threshold, delta VO2/delta WR, and chronotropic index. Conclusion: In patients on incident dialysis, exercise parameters, including those related to both skeletal muscle and cardiac function, were strongly associated with AC/FC, a marker of carnitine deficiency indicating altered fatty acid metabolism. Further studies are warranted to determine whether carnitine supplementation can improve exercise capacity in patients on incident dialysis.
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Affiliation(s)
- Wataru Ito
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Kiyotaka Uchiyama
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
- *Correspondence: Kiyotaka Uchiyama,
| | - Ryunosuke Mitsuno
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Erina Sugita
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Takashin Nakayama
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Toshinobu Ryuzaki
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Rina Takahashi
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Yoshinori Katsumata
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
- Institute for Integrated Sports Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kaori Hayashi
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Takeshi Kanda
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Washida
- Department of Nephrology, International University of Health and Welfare Narita Hospital, Narita, Chiba, Japan
| | - Kazuki Sato
- Institute for Integrated Sports Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hiroshi Itoh
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
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Exercise intolerance and malnutrition associated with all-cause mortality in elderly patients undergoing peritoneal dialysis: a single-center prospective cohort study. Int Urol Nephrol 2022; 55:1365-1372. [PMID: 36562903 DOI: 10.1007/s11255-022-03446-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Low physical function and malnutrition in elderly patients undergoing peritoneal dialysis (PD) are important issues that may be associated with prognosis. We aimed to determine the association between physical function and nutritional status and survival in elderly patients undergoing PD. METHODS This single-center, prospective cohort study included 45 stable, ambulatory patients undergoing PD. Physical function was measured using the 6-min walk distance (6MWD) test, 10-m walk speed, handgrip strength, lower extremity muscle strength, and short physical performance battery. Nutritional status was assessed using albumin levels and the Geriatric Nutritional Risk Index (GNRI). Patients were divided into two groups according to adverse events. Receiver operating characteristic curve analysis was used to predict mortality. The relationships between all-cause mortality and physical function and nutritional status were studied using Kaplan-Meier analysis and the log-rank test. RESULTS The mean patient age was 75.3 ± 6.5 years. The median follow-up time was 32 (interquartile range 18-51) months, during which 11 deaths occurred. Death during follow-up was significantly associated with lower 6MWD (237.4 ± 120.2 vs. 355.2 ± 105.9 m), lower GNRI (77.3 ± 16.3 vs. 89.3 ± 8.1), and lower albumin levels (2.8 ± 0.6 vs. 3.3 ± 0.4 mg/dL) at baseline (p < 0.05). The cut-off values were 338 m, 83.3, and 2.95 g/dL for the 6MWD, GNRI, and albumin levels, respectively. The 6MWD test, GNRI, and albumin levels were significantly associated with all-cause mortality (p < 0.05). Additionally, the group with combined exercise intolerance and malnutrition had a lower survival rate (p < 0.05). CONCLUSION Lower 6MWD and malnutrition are predictors of mortality in elderly patients undergoing PD.
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Pella E, Boutou A, Boulmpou A, Papadopoulos CE, Papagianni A, Sarafidis P. Cardiopulmonary exercise testing in patients with end-stage kidney disease: principles, methodology and clinical applications of the optimal tool for exercise tolerance evaluation. Nephrol Dial Transplant 2022; 37:2335-2350. [PMID: 33823012 DOI: 10.1093/ndt/gfab150] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 12/31/2022] Open
Abstract
Chronic kidney disease (CKD), especially end-stage kidney disease (ESKD), is associated with an increased risk for cardiovascular events and all-cause mortality. Exercise intolerance as well as reduced cardiovascular reserve is extremely common in patients with CKD. Cardiopulmonary exercise testing (CPET) is a non-invasive, dynamic technique that provides an integrative evaluation of cardiovascular, pulmonary, neuropsychological and metabolic function during maximal or submaximal exercise, allowing the evaluation of functional reserves of these systems. This assessment is based on the principle that system failure typically occurs when the system is under stress and thus CPET is currently considered to be the gold standard for identifying exercise limitation and differentiating its causes. It has been widely used in several medical fields for risk stratification, clinical evaluation and other applications, but its use in everyday practice for CKD patients is scarce. This article describes the basic principles and methodology of CPET and provides an overview of important studies that utilized CPET in patients with ESKD, in an effort to increase awareness of CPET capabilities among practicing nephrologists.
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Affiliation(s)
- Eva Pella
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Afroditi Boutou
- Department of Respiratory Medicine, G. Papanikolaou Hospital, Thessaloniki, Greece
| | - Aristi Boulmpou
- Third Department of Cardiology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christodoulos E Papadopoulos
- Third Department of Cardiology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Aikaterini Papagianni
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Pantelis Sarafidis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Bielecka-Dabrowa A, Gryglewska K, Sakowicz A, Rybak M, Janikowski K, Banach M. Obesity and Body Mass Components Influence Exercise Tolerance and the Course of Hypertension in Perimenopausal Women. J Cardiovasc Dev Dis 2022; 9:jcdd9080238. [PMID: 36005402 PMCID: PMC9409395 DOI: 10.3390/jcdd9080238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/14/2022] [Accepted: 07/25/2022] [Indexed: 11/29/2022] Open
Abstract
The aim of this study was to identify the potential influence of obesity and body mass components on exercise tolerance assessed in cardiopulmonary exercise testing (CPET), biochemical and echocardiographic parameters and factors correlated with oxygen absorption at the anaerobic threshold in hypertensive women with low levels of physical activity in the perimenopausal period. The study comprised 188 hypertensive women divided, based on body mass index (BMI), into an obesity group and a non-obesity group. Women with BMI ≥ 30 kg/m2 had significantly higher parameters of left ventricular diastolic dysfunction in echocardiography, lower total body water (TBC) in percentage assessed by bioimpedance and significantly worse exercise capacity assessed by CPET. In the study group, VO2 AT (mL/kg/min) correlated positively with TBW (r = 0.4, p < 0.0001) and with the ratio of extracellular water to total body water (ECW/TBW) (r = 0.4, p < 0.00001) and negatively with fat (% and kg) (r = −0.4, p < 0.0001 for both). Obesity negatively affects parameters of diastolic left ventricular function, as well as exercise tolerance in CPET in hypertensive females during the perimenopausal period. The oxygen uptake at anaerobic threshold correlates positively with total body water and ECW/TBW and negatively with body fat; this connection is more pronounced in women without obesity. ClinicalTrials.gov Identifier: NCT04802369.
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Affiliation(s)
- Agata Bielecka-Dabrowa
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (M.R.); (K.J.); (M.B.)
- Department of Preventive Cardiology and Lipidology, Medical University of Lodz, 90-419 Lodz, Poland
- Correspondence: (A.B.-D.); (K.G.); Tel.: +48-42-271-15-97 (A.B.-D. & K.G.)
| | - Katarzyna Gryglewska
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (M.R.); (K.J.); (M.B.)
- Correspondence: (A.B.-D.); (K.G.); Tel.: +48-42-271-15-97 (A.B.-D. & K.G.)
| | - Agata Sakowicz
- Department of Medical Biotechnology, Medical University of Lodz, 90-419 Lodz, Poland;
| | - Marek Rybak
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (M.R.); (K.J.); (M.B.)
| | - Kamil Janikowski
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (M.R.); (K.J.); (M.B.)
| | - Maciej Banach
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (M.R.); (K.J.); (M.B.)
- Department of Preventive Cardiology and Lipidology, Medical University of Lodz, 90-419 Lodz, Poland
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Wu X, Zhang Y, Wang F, Xiang J. Cardiopulmonary exercise testing to observe subclinical abnormalities in cardiopulmonary function in patients undergoing peritoneal dialysis. Clin Physiol Funct Imaging 2022; 42:269-277. [PMID: 35419944 DOI: 10.1111/cpf.12756] [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: 12/30/2021] [Accepted: 04/04/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Decreased cardiorespiratory fitness (CRF) related to cardiopulmonary function increases the risk of cardiovascular disease in patients with end-stage kidney disease. Thus, early detection of the cause of impaired cardiopulmonary function in patients undergoing peritoneal dialysis (PD) is of important clinical significance. METHODS In this cross-sectional study, Symptom-restricted cardiopulmonary exercise testing (CPET) was performed in 30 patients undergoing PD and in 23 age- and sex-matched healthy control subjects.A fixed workload was added every minute until fatigue, and breath-by-breath respiratory gas was analyzed with an automated gas analyzer at 10-second intervals. RESULTS The peak oxygen uptake ( 16.39±0.83 vs 25.77±1.33 ml/kg/min p<0.001) and the oxygen uptake at the anerobic threshold of patients undergoing PD (9.61±0.34 vs 14.55± 0.64 ml/kg/min; p<0.001) were lower than in healthy control subjects, and both of these parameters correlated with body mass index and left atrial dimension. A steeper minute ventilation / carbon dioxide production slope (27.20±0.68 vs 24.29±0.69;p<0.01) and a lower end-tidal carbon dioxide partial pressure (37.93±0.54 vs 41.27±0.83mmHg;p<0.05) were observed in patients undergoing PD. The oxygen pulse and oxygen uptake efficiency slope was smaller in patients undergoing PD. The Maximum heart rate (126.07±4.01 vs 149.96±5.29 bpm;p<0.01) and 1-minute heart rate recovery (13.93±1.52 vs 24.39±1.61bpm;p<0.01) were also lower in patients undergoing PD. CONCLUSION Subclinical cardiopulmonary dysfunction may exist in patients with PD, and a reduction in CRF in patients undergoing PD is affected by both central and peripheral functions. CPET has potential value in revealing the mechanism of impaired CRF and in discovering subclinical abnormalities in cardiopulmonary function. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Xin Wu
- Rehabilitation, The Affiliated Hospital of Xuzhou Medical University, 99 Huaihai West Road, Quanshan District, Xuzhou, China, 221004
| | - Ying Zhang
- Nephrology, Xuzhou Medical University Affiliated Hospital, Xuzhou, Jiangsu, China
| | - FengLi Wang
- Rehabilitation, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jie Xiang
- Rehabilitation, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Bielecka-Dabrowa A, Gryglewska K, Sakowicz A, von Haehling S, Janikowski K, Maciejewski M, Banach M. Factors and Prognostic Significance of Impaired Exercise Tolerance in Women over 40 with Arterial Hypertension. J Pers Med 2021; 11:jpm11080759. [PMID: 34442403 PMCID: PMC8401822 DOI: 10.3390/jpm11080759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/25/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to identify factors influencing maximal oxygen uptake (VO2max) and early identification of the profile of hypertensive women in the perimenopausal period at risk of heart failure. This study included 185 female patients. Regression analyses determined predictors of the lowest VO2max (quartile 1: VO2max < 17 mL/kg/min). Females with the lowest oxygen consumption had a significantly higher level of high sensitive cardiac Troponin T (hs-cTnT) (p = 0.001), higher values of the left atrial (LA) volume, late diastolic mitral annulus velocity (A′), E/E′ (p = 0.0003, p = 0.02, p = 0.04; respectively), higher BMI and fat content (kg and %) (p < 0.0001), higher fat free mass (FFM) (kg) (p < 0.0001), total body water content (TBW) (p = 0.0002) as well as extracellular body water content (ECW) (p < 0.0001) and intracellular body water content (ICW) (p = 0.005), ECW/TBW × 100% (p < 0.0001) and metabolic age (p < 0.0001) and lower E′ (p = 0.001) compared to controls. In a multiple logistic regression model independently associated with VO2max were: ECW/TBW × 100% (OR 4.45, 95% CI: 1.77–11.21; p = 0.002), BMI (OR 7.11, 95% CI: 2.01–25.11; p = 0.002) and hs-cTnT level (OR 2.69, 95% CI: 1.23–5.91; p = 0.013). High-sensitivity cardiac troponin may serve as an early biomarker of heart failure in hypertensive women. Hydration status should be considered in overall hypertensive women care. There is an importance of body mass compartments analysis in the early identification of hypertensive females at risk of heart failure. Optimization and personalization of body structure may be a preventive method for this disease. ClinicalTrials.gov Identifier: NCT04802369.
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Affiliation(s)
- Agata Bielecka-Dabrowa
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (K.J.); (M.B.)
- Department of Preventive Cardiology and Lipidology, Chair of Nephrology and Hypertension, Medical University of Lodz, 93-338 Lodz, Poland
- Correspondence: (A.B.-D.); (K.G.); Tel.: +48-42-271-15-97 (A.B.-D. & K.G.)
| | - Katarzyna Gryglewska
- Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland;
- Correspondence: (A.B.-D.); (K.G.); Tel.: +48-42-271-15-97 (A.B.-D. & K.G.)
| | - Agata Sakowicz
- Department of Medical Biotechnology, Medical University of Lodz, 93-338 Lodz, Poland;
| | - Stephan von Haehling
- Department of Cardiology and Pneumology and German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, University Medical Center Göttingen (UMG), 37075 Göttingen, Germany;
| | - Kamil Janikowski
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (K.J.); (M.B.)
- Department of Preventive Cardiology and Lipidology, Chair of Nephrology and Hypertension, Medical University of Lodz, 93-338 Lodz, Poland
| | - Marek Maciejewski
- Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland;
| | - Maciej Banach
- Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), 93-338 Lodz, Poland; (K.J.); (M.B.)
- Department of Preventive Cardiology and Lipidology, Chair of Nephrology and Hypertension, Medical University of Lodz, 93-338 Lodz, Poland
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7
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Ho MH, Huang D, Ho CW, Zuo ML, Luo AG, Cheung E, Zhou M, Cheng Y, Liu M, Yiu KH, Lau CP, Yeung P, Yue WS, Yin LX, Tse HF, Jiang W, Lei Z, Li XL, Cowie M, Siu CW. Body volume is the major determinant of worsening renal function in acutely decompensated heart failure with reduced left ventricular ejection fraction. Postgrad Med J 2021; 98:333-340. [PMID: 33593808 DOI: 10.1136/postgradmedj-2020-139023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/02/2020] [Accepted: 12/12/2020] [Indexed: 11/04/2022]
Abstract
AIMS Little is known about the relative importance of body volume and haemodynamic parameters in the development of worsening of renal function in acutely decompensated heart failure (ADHF). To study the relationship between haemodynamic parameters, body water content and worsening of renal function in patients with heart failure with reduced ejection fraction (HFrEF) hospitalised for ADHF. METHODS AND RESULTS This prospective observational study involved 51 consecutive patients with HFrEF (age: 73±14 years, male: 60%, left ventricular ejection fraction: 33.3%±9.9%) hospitalised for ADHF. Echocardiographic-determined haemodynamic parameters and body volume determined using a bioelectric impedance analyser were serially obtained. All patients received intravenous furosemide 160 mg/day for 3 days. There was a mean weight loss of 3.95±2.82 kg (p<0.01), and brain natriuretic peptide (BNP) reduced from 1380±901 pg/mL to 797±738 pg/mL (p<0.01). Nonetheless serum creatinine (SCr) increased from 134±46 μmol/L to 151±53 μmol/L (p<0.01), and 35% of patients developed worsening of renal function. The change in SCr was positively correlated with age (r=0.34, p=0.017); and negatively with the ratio of extracellular water to total body water, a parameter of body volume status (r=-0.58, p<0.001); E:E' ratio (r=-0.36, p=0.01); right ventricular systolic pressure (r=-0.40, p=0.009); and BNP (r=-0.40, p=0.004). Counterintuitively, no correlation was observed between SCr and cardiac output, or total peripheral vascular resistance. Regression analysis revealed that normal body volume and lower BNP independently predicted worsening of renal function. CONCLUSIONS Normal body volume and lower serum BNP on admission were associated with worsening of renal function in patients with HFrEF hospitalised for ADHF.
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Affiliation(s)
- Mei Han Ho
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Duo Huang
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Chi-Wai Ho
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Ming-Liang Zuo
- Department of Echocardiography & Non-invasive Cardiology Laboratory, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - An-Guo Luo
- Department of Echocardiography & Non-invasive Cardiology Laboratory, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Emmanuel Cheung
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Mi Zhou
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Yangyang Cheng
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Mingya Liu
- Cardiology Division,Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Kai-Hang Yiu
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong.,Cardiology Division,Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Chu Pak Lau
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Pauline Yeung
- Respiratory Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Wen Sheng Yue
- Medical Imaging Key Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Li-Xue Yin
- Department of Echocardiography & Non-invasive Cardiology Laboratory, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Hung Fat Tse
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Wei Jiang
- Department of medicine, Union Shenzhen Hospital, Huazhong University of Science and Technology, Shenzhen, China
| | - Zhen Lei
- Department of medicine, Union Shenzhen Hospital, Huazhong University of Science and Technology, Shenzhen, China
| | - Xin-Li Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, NanJing, China
| | - M Cowie
- Imperial College London, Royal Brompton Hospital, London, UK
| | - Chung Wah Siu
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong, Hong Kong .,Cardiology Division,Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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Bennett PN, Hussein WF, Matthews K, West M, Smith E, Reiterman M, Alagadan G, Shragge B, Patel J, Schiller BM. An Exercise Program for Peritoneal Dialysis Patients in the United States: A Feasibility Study. Kidney Med 2020; 2:267-275. [PMID: 32734246 PMCID: PMC7380403 DOI: 10.1016/j.xkme.2020.01.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND People with end-stage kidney disease receiving peritoneal dialysis (PD) are generally physically inactive and frail. Exercise studies in PD are scarce and currently there are no PD exercise programs in the United States. The primary objective of this study was to test the feasibility of a combined resistance and cardiovascular exercise program for PD patients under the care of a dedicated home dialysis center in the United States. STUDY DESIGN Parallel randomized controlled feasibility study. SETTING & PARTICIPANTS PD patients were recruited from a single center and randomly assigned to the intervention (exercise; n = 18) or control (nonexercise; n = 18) group. INTERVENTION The intervention group received monthly exercise physiologist consultation, exercise prescription (resistance and aerobic exercise program using exercise bands), and 4 exercise support telephone calls over 12 weeks. The control group received standard care. OUTCOMES The primary outcome was study feasibility as measured by eligibility rates, recruitment rates, retention rates, adherence rates, adverse events, and sustained exercise rates. Secondary outcome measures were changes in physical function (sit-to-stand test, timed-up-and-go test, and pinch-strength tests) and patient-reported outcome measures. RESULTS From a single center with 75 PD patients, 57 (76%) were deemed eligible, resulting in a recruitment rate of 36 (63%) patients. Participants were randomly assigned into 2 groups of 18 (1:1). 10 patients discontinued the study (5 in each arm), resulting in 26 (72%) patients, 13 in each arm, completing the study. 10 of 13 (77%) intervention patients were adherent to the exercise program. A t test analysis of covariance found a difference between the treatment groups for the timed-up-and-go test (P = 0.04) and appetite (P = 0.04). No serious adverse events caused by the exercise program were reported. LIMITATIONS Single center, no blinded assessors. CONCLUSIONS A resistance and cardiovascular exercise program appears feasible and safe for PD patients. We recommend that providers of PD therapy consider including exercise programs coordinated by exercise professionals to reduce the physical deterioration of PD patients. FUNDING None. TRIAL REGISTRATION NCT03980795.
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Affiliation(s)
- Paul N. Bennett
- Satellite Healthcare, San Jose, CA
- Deakin University, Melbourne, VIC, Australia
| | - Wael F. Hussein
- Satellite Healthcare, San Jose, CA
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | | | - Mike West
- Satellite Wellbound, Sacramento, CA
- College of Health and Human Services, California State University, Sacramento, CA
| | | | | | | | | | | | - Brigitte M. Schiller
- Satellite Healthcare, San Jose, CA
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
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9
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Uchiyama K, Washida N, Morimoto K, Muraoka K, Nakayama T, Adachi K, Kasai T, Miyashita K, Wakino S, Itoh H. Effects of exercise on residual renal function in patients undergoing peritoneal dialysis: A post-hoc analysis of a randomized controlled trial. Ther Apher Dial 2020; 24:668-676. [PMID: 31997526 DOI: 10.1111/1744-9987.13481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/03/2020] [Accepted: 01/27/2020] [Indexed: 12/11/2022]
Abstract
We aimed to investigate the effects of exercise on renal outcomes in patients undergoing peritoneal dialysis (PD). In a post-hoc analysis of a randomized controlled trial of a 12-week home-based exercise program involving 47 patients undergoing PD, we excluded 18 patients with anuria and analyzed 13 and 16 patients in the usual care and exercise groups, respectively. The primary outcomes were weekly renal creatinine clearance (CCr) and urinary biomarkers: liver-type fatty acid-binding protein (L-FABP) and the microalbumin-to-creatinine ratio (ACR). Although the maintenance of weekly renal CCr in the exercise group was not significantly different compared with that in the usual care group (P = .09), urinary L-FABP levels (P = .02) and ACR (P = .04) were significantly decreased in the exercise group. To the best of our knowledge, this is the first study to demonstrate the beneficial effects of exercise on renal outcomes in patients undergoing PD.
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Affiliation(s)
- Kiyotaka Uchiyama
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Washida
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Department of Nephrology, International University of Health and Welfare School of Medicine, Chiba, Japan
| | - Kohkichi Morimoto
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kaori Muraoka
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takashin Nakayama
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keika Adachi
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takahiro Kasai
- Department of Nephrology, International University of Health and Welfare School of Medicine, Chiba, Japan
| | - Kazutoshi Miyashita
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shu Wakino
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hiroshi Itoh
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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Zeng J, Bennett PN, Hill K, Borlace M, Xu Q. The Exercise Perceptions of People Treated with Peritoneal Dialysis. J Ren Care 2020; 46:106-114. [PMID: 31943794 DOI: 10.1111/jorc.12313] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Individuals receiving peritoneal dialysis (PD) report low levels of physical activity, which increases their risk of morbidity and mortality. Little is known about their perceptions towards barriers and benefits of exercise or physical activity. AIM The aim of this study was to explore the perceptions of exercise among people receiving PD. STUDY DESIGN Cross-sectional survey. PARTICIPANTS Thirty-nine adults (12 female and 27 male) with a mean age of 65 years and a median of 8 months receiving PD from one Australian dialysis service. MEASUREMENTS The 26-item Dialysis Patient-Perceived Exercise Benefits and Barriers Survey was adapted to PD in order to measure self-reported barriers and benefits of exercise for people being treated with PD. RESULTS The majority of the respondents reported positive perceptions towards exercise with 84.6% of the participants agreeing that exercise prevents muscular wasting; 71.8% agreed that exercise can postpone a decline in body function; and 69.2% agreed that exercise improves general well-being. In terms of barriers, symptoms including tiredness (69.2%) and body pain (43.6%), worrying about a fall (33.3%) and lack of exercise-related information (25.6%) were the main perceived barriers to exercise. Only 10% agreed that exercise may affect their PD catheter with 23% agreeing that fluid in their peritoneum was a barrier to exercise. CONCLUSION People on PD hold positive perceptions towards exercise but face a number of perceived barriers to physical activity. Clinicians can acknowledge these barriers and focus on helping people on PD to overcome their perceived barriers to encourage sustained exercise participation.
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Affiliation(s)
- Jie Zeng
- Central Northern Adelaide Renal and Transplantation Service (CNARTS)-Lyell McEwin Hospital Dialysis Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | | | - Kathleen Hill
- School of Nursing and Midwifery, University of South Australia, Adelaide, South Australia, Australia
| | - Monique Borlace
- Home Dialysis Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Qunyan Xu
- School of Nursing and Midwifery, University of South Australia, Adelaide, South Australia, Australia
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11
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Isokinetic Strength in Peritoneal Dialysis Patients: A Reliability Study. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9173542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although there are studies assessing the effects of interventions on the knee strength of patients undergoing dialysis, there are no previous studies investigating the test–retest reliability of isokinetic measures in people undergoing peritoneal dialysis. The objective of this study was to determine the relative and absolute reliability of peak torque and work measurements for isokinetic concentric knee and elbow extension and flexion in peritoneal dialysis patients. Thirty-one patients undergoing peritoneal dialysis (19 males) participated in the current study. All isokinetic tests were performed using a Biodex System 3. Participants performed three concentric repetitions of each test (flexion or extension) with the dominant limb (knee and elbow) at 60°/s. Peak torque (Nm) and work (J) were extracted. The intraclass correlation coefficient (ICC), standard error of measurement (SEM), and smallest real difference (SRD) were calculated. The results showed that all knee peak torque and work measures had an ICC of >0.90. On the other hand, the ICC for peak torque and work in the elbow concentric extension was <0.90, while the remaining elbow-related variables achieved an excellent reliability. Therefore, isokinetic dynamometry is a reliable technique to evaluate peak torque and work for concentric flexion and extension in both the knee and elbow joints in patients undergoing peritoneal dialysis.
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12
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Uchiyama K, Washida N, Morimoto K, Muraoka K, Kasai T, Yamaki K, Miyashita K, Wakino S, Itoh H. Home-based Aerobic Exercise and Resistance Training in Peritoneal Dialysis Patients: A Randomized Controlled Trial. Sci Rep 2019; 9:2632. [PMID: 30796338 PMCID: PMC6385506 DOI: 10.1038/s41598-019-39074-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/16/2019] [Indexed: 01/08/2023] Open
Abstract
Potential effects of aerobic and resistance training in peritoneal dialysis (PD) patients have been partially elucidated. We investigated effects of a home-based exercise program on physical functioning and health-related quality of life (HRQOL) in PD patients. Patients were randomly assigned to exercise (n = 24) and usual care (n = 23) groups. The exercise patients performed aerobic exercise thrice weekly and resistance training twice weekly at home for 12 weeks. The usual care patients received no specific intervention. The distance in incremental shuttle walking test significantly improved in the exercise group compared with the usual care group (P = 0.02). Among the HRQOL subscales assessed using the Kidney Disease Quality of Life-Short Form questionnaire, kidney disease component summary (P = 0.03), physical role functioning (P = 0.01), emotional role functioning (P < 0.01), and role/social component summary (P < 0.01) significantly improved in the exercise group. Moreover, serum albumin was significantly maintained in the exercise group (P = 0.03). There were no reported adverse events associated with the intervention. To our knowledge, this is the first randomized controlled trial to indicate the beneficial effects of a 12-week home-based exercise program exclusively in PD patients.
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Affiliation(s)
- Kiyotaka Uchiyama
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Naoki Washida
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Nephrology, International University of Health and Welfare School of Medicine, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan
| | - Kohkichi Morimoto
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kaori Muraoka
- Department of Rehabilitation Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takahiro Kasai
- Department of Nephrology, International University of Health and Welfare School of Medicine, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan
| | - Kentaro Yamaki
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazutoshi Miyashita
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shu Wakino
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiroshi Itoh
- Division of Endocrinology, Metabolism and Nephrology Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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13
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Uchiyama K, Washida N, Muraoka K, Morimoto K, Kasai T, Yamaki K, Miyashita K, Wakino S, Itoh H. Exercise Capacity and Association with Quality of Life in Peritoneal Dialysis Patients. Perit Dial Int 2018; 39:66-73. [PMID: 30478142 DOI: 10.3747/pdi.2018.00075] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/01/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Muscle wasting, common and progressive in uremic patients, is associated with a high probability for morbidity, lower health-related quality of life (HRQOL), and mortality. However, exercise tolerance in peritoneal dialysis (PD) patients has not been fully elucidated. The aim of this study was to evaluate exercise capacity, its determinants, and its association with HRQOL in PD patients. METHODS Outpatients treated with PD at Keio University Hospital from December 2016 to March 2018 were included in this single-center cross-sectional observational study. Exercise capacity was assessed by incremental shuttle walking test (ISWT) and handgrip and quadriceps strength. In addition to evaluation of PD-related parameters, HRQOL was assessed by the Kidney Disease Quality of Life-Short Form questionnaire. RESULTS Among the 50 recruited PD outpatients, age and PD vintage were 63.8 ± 9.6 and 3.8 ± 2.8 years, respectively. Physical examination revealed ISWT of 312.0 ± 138.2 m, handgrip strength of 27.5 ± 6.9 kg, and quadriceps strength of 23.3 ± 10.0 kg. Multivariate analysis showed that younger age and male sex were significantly associated with higher ISWT and handgrip and quadriceps strength. Skeletal mass index (SMI) remained a significant predictor of handgrip and quadriceps strength. Moreover, only ISWT was strongly correlated with higher HRQOL scores, including physical, mental, and kidney-specific domains, even after adjustment for age and sex. CONCLUSIONS Exercise tolerance in PD patients was partially determined by age, sex, and SMI. Moreover, this is the first study to demonstrate the strong relationship between aerobic capacity and HRQOL in PD patients.
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Affiliation(s)
- Kiyotaka Uchiyama
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Washida
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Department of Nephrology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Kaori Muraoka
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kohkichi Morimoto
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takahiro Kasai
- Department of Nephrology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Kentaro Yamaki
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kazutoshi Miyashita
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shu Wakino
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hiroshi Itoh
- Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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van Hoorn R, Tummers M, Booth A, Gerhardus A, Rehfuess E, Hind D, Bossuyt PM, Welch V, Debray TPA, Underwood M, Cuijpers P, Kraemer H, van der Wilt GJ, Kievit W. The development of CHAMP: a checklist for the appraisal of moderators and predictors. BMC Med Res Methodol 2017; 17:173. [PMID: 29268721 PMCID: PMC5740883 DOI: 10.1186/s12874-017-0451-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 12/05/2017] [Indexed: 12/14/2022] Open
Abstract
Background Personalized healthcare relies on the identification of factors explaining why individuals respond differently to the same intervention. Analyses identifying such factors, so called predictors and moderators, have their own set of assumptions and limitations which, when violated, can result in misleading claims, and incorrect actions. The aim of this study was to develop a checklist for critically appraising the results of predictor and moderator analyses by combining recommendations from published guidelines and experts in the field. Methods Candidate criteria for the checklist were retrieved through systematic searches of the literature. These criteria were evaluated for appropriateness using a Delphi procedure. Two Delphi rounds yielded a pilot checklist, which was tested on a set of papers included in a systematic review on reinforced home-based palliative care. The results of the pilot informed a third Delphi round, which served to finalize the checklist. Results Forty-nine appraisal criteria were identified in the literature. Feedback was obtained from fourteen experts from (bio)statistics, epidemiology and other associated fields elicited via three Delphi rounds. Additional feedback from other researchers was collected in a pilot test. The final version of our checklist included seventeen criteria, covering the design (e.g. a priori plausibility), analysis (e.g. use of interaction tests) and results (e.g. complete reporting) of moderator and predictor analysis, together with the transferability of the results (e.g. clinical importance). There are criteria both for individual papers and for bodies of evidence. Conclusions The proposed checklist can be used for critical appraisal of reported moderator and predictor effects, as assessed in randomized or non-randomized studies using individual participant or aggregate data. This checklist is accompanied by a user’s guide to facilitate implementation. Its future use across a wide variety of research domains and study types will provide insights about its usability and feasibility. Electronic supplementary material The online version of this article (10.1186/s12874-017-0451-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ralph van Hoorn
- Radboud Institute for Health Sciences, Radboud university medical center, Geert Grooteplein 21, Nijmegen, 6525, EZ, The Netherlands.
| | - Marcia Tummers
- Radboud Institute for Health Sciences, Radboud university medical center, Geert Grooteplein 21, Nijmegen, 6525, EZ, The Netherlands
| | - Andrew Booth
- Health Economics and Decision Science (HEDS), School of Health and Related Research (ScHARR), University of Sheffield Regent Court, Sheffield, UK
| | - Ansgar Gerhardus
- Department of Health Services Research, Institute for Public Health and Nursing Research, University of Bremen and Health Sciences Bremen, University of Bremen, Bremen, Germany
| | - Eva Rehfuess
- Institute for Medical Information Processing, Biometry and Epidemiology; Pettenkofer School of Public Health, LMU Munich, Munich, Germany
| | - Daniel Hind
- Clinical Trials Research Unit, University of Sheffield Regent Court, Sheffield, UK
| | - Patrick M Bossuyt
- Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Thomas P A Debray
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University; Cochrane Netherlands, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martin Underwood
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Pim Cuijpers
- Department of Clinical, Neuro and Developmental Psychology, Amsterdam Public Health research institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Helena Kraemer
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Gert Jan van der Wilt
- Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, The Netherlands
| | - Wietkse Kievit
- Institute for Health Sciences, Radboud university medical center, Nijmegen, The Netherlands
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15
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Comparison of resting and total energy expenditure in peritoneal dialysis patients and body composition measured by dual-energy X-ray absorptiometry. Eur J Clin Nutr 2016; 70:1337-1339. [DOI: 10.1038/ejcn.2016.120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/17/2016] [Accepted: 06/05/2016] [Indexed: 01/01/2023]
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16
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Karelis AD, Hébert MJ, Rabasa-Lhoret R, Räkel A. Impact of Resistance Training on Factors Involved in the Development of New-Onset Diabetes After Transplantation in Renal Transplant Recipients: An Open Randomized Pilot Study. Can J Diabetes 2015; 40:382-388. [PMID: 26656280 DOI: 10.1016/j.jcjd.2015.08.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/31/2015] [Accepted: 08/22/2015] [Indexed: 12/14/2022]
Abstract
OBJECTIVES New-onsetdiabetes after transplant (NODAT) is a major contributor to cardiovascular disease after transplantation. Kidney transplantation (KT) recipients have low levels of exercise capacity. Resistance training (RT) might be of special benefit in this population because underlying disease and immunosuppressive drugs favour muscle loss and insulin resistance. The aim of this study was to assess the feasibility of implementing an RT program within a population of KT recipients and its impact on the incidence of NODAT and cardiometabolic risk factors. METHODS This pilot study was an open-randomized study. We randomized 24 patients with a 1:1 allocation to 2 parallel groups, the exercise group (E) or the control group (C). The E group was submitted to RT 3 times a week for 16 weeks. Anthropometric, body composition, cardiometabolic risk factors, muscle strength, cardiorespiratory fitness and well-being were measured before and after 16 weeks. RESULTS Of the 24 recruited participants, 20 completed the study (10 in the E group and 10 in the C group). No injuries were reported. The intervention was associated with a significant increase in muscle strength (p=0.003). A significant group effect, in favour of the E group, was detected for the well-being score (p=0.03). However, no changes in body composition, cardiometabolic risk factors or cardiorespiratory fitness were noted for either group after the intervention. CONCLUSIONS This pilot study suggests that RT appears to be secure and feasible and improves strength and well-being in patients after KT. However, it does not improve cardiometabolic risk factors.
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Affiliation(s)
- Antony D Karelis
- Department of Exercise Science, Université du Québec à Montréal, Montreal, Quebec, Canada; Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada
| | - Marie-Josée Hébert
- University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Rémi Rabasa-Lhoret
- University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada; Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada; Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada
| | - Agnès Räkel
- University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.
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Shing CM, Fassett RG, Peake JM, Coombes JS. Voluntary exercise decreases atherosclerosis in nephrectomised ApoE knockout mice. PLoS One 2015; 10:e0120287. [PMID: 25799529 PMCID: PMC4370520 DOI: 10.1371/journal.pone.0120287] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/02/2015] [Indexed: 11/21/2022] Open
Abstract
Cardiovascular disease is the main cause of morbidity and mortality in patients with kidney disease. The effectiveness of exercise for cardiovascular disease that is accelerated by the presence of chronic kidney disease remains unknown. The present study utilized apolipoprotein E knockout mice with 5/6 nephrectomy as a model of combined kidney disease and cardiovascular disease to investigate the effect of exercise on aortic plaque formation, vascular function and systemic inflammation. Animals were randomly assigned to nephrectomy or control and then to either voluntary wheel running exercise or sedentary. Following 12-weeks, aortic plaque area was significantly (p<0.05, d=1.2) lower in exercising nephrectomised mice compared to sedentary nephrectomised mice. There was a strong, negative correlation between average distance run each week and plaque area in nephrectomised and control mice (r=–0.76, p=0.048 and r=–0.73, p=0.062; respectively). In vitro aortic contraction and endothelial-independent and endothelial-dependent relaxation were not influenced by exercise (p>0.05). Nephrectomy increased IL-6 and TNF-α concentrations compared with control mice (p<0.001 and p<0.05, respectively), while levels of IL-10, MCP-1 and MIP-1α were not significantly influenced by nephrectomy or voluntary exercise (p>0.05). Exercise was an effective non-pharmacologic approach to slow cardiovascular disease in the presence of kidney disease in the apolipoprotein E knockout mouse.
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Affiliation(s)
- Cecilia M. Shing
- School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
- * E-mail:
| | - Robert G. Fassett
- School of Human Movement Studies, University of Queensland, Brisbane, Queensland, Australia
| | - Jonathan M. Peake
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Jeff S. Coombes
- School of Human Movement Studies, University of Queensland, Brisbane, Queensland, Australia
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18
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Iyasere O, Brown EA. Determinants of quality of life in advanced kidney disease: time to screen? Postgrad Med J 2014; 90:340-7. [DOI: 10.1136/postgradmedj-2013-132251] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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