Chronic Kidney Disease Clinical Trial
Official title:
MULTIDISCIPLINARY INTERVENTION FOR FRAIL ELDERLY PATIENTS WITH STAGE 4 or 5 Chronic Kidney Disease (Not on Dialysis)
Chronic kidney disease is a common diagnosis in the elderly population and it is associated with significant morbidity and health care costs. The prevalence rates increase with age to about 40% for adults aged > 65 years. In the elderly population (age 65 and over), CKD is associated with a higher burden of comorbid conditions and frailty. The prevalence of frailty is higher in CKD patients with rated being double in early stages and nearly 6 times higher beyond stage 3b. Previously reported frailty mortality rates of 18% at 3 years and 47% at 7 years comparing with mortality rates in non frail individuals of 3% and 12% respectively. In this study, the investigators investigate the effect of multidisciplinary interventions upon frail elderly patients with CKD not yet on dialysis. This interventions include best medical care, nutrition, physiotherapy, and social, psychological and spiritual support.
A multilevel, multidisciplinary intervention is required to assist frail CKD patients given the complexity of their condition. However, the optimal methods for this intervention are not very well defined in the literature. It was previously described that dialysis does not improve (and often times can worsen) the outcomes of frail patients with renal disease (41). The nowadays trend is to try to optimise and decrease frailty before initiation of dialysis. If that is not possible, a more conservative and palliative approach is envisaged. Regardless, a combined geriatric and nephrological expertise may help to identify patients at high risk of early death for whom this approach is indicated (42). Major medical societies have regularly reviewed and published their guidelines for medical management of chronic kidney disease. Most reputable such guidelines are KDIGO 2012 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease (43) and The National Kidney Foundation Kidney Disease Outcomes Quality Initiative (NKF KDOQI, (44)). In Canada, field experts reviewed current evidence and provided similar recommendations (45). In summary, all this guidelines provide expert opinion on treatment and targets of treatment in CKD patients with an accent on controlling cardiovascular risk factors (hypertension, diabetes, dyslipidemia), lifestyle management, control of CKD complications (proteinuria, anemia, mineral metabolism), and initiation of renal replacement therapy. Lifestyle management is probably one of the most important intervention in CKD population. First and foremost, it empowers the patients to take control of their lives and become an active partner in their treatment. Smoking cessation, weight reduction, dietary protein control, alcohol intake, exercise, and controlling salt intake are proven to improve outcomes and are part of current guidelines. Regular physical exercise improves physical fitness, walking capacity, cardiovascular parameters (e.g. blood pressure and heart rate), health-related quality of life, and nutritional parameters (48). Physical activity is also protective against depression (49). In the case of frail patients, usually sedentary, with multiple cardiac risk factors, it is recommended to begin with gradual exercise and under supervision. Nutrition must be targeted in the frail elderly with CKD because decreasing energy intake is associated with higher stages of CKD (50). Though in the CKD non dialysis population, nutrition supplementation has not been formally assessed, the general population of frail elderlies have been evaluated with protein supplementation. Tieland et al (51) randomized 65 frail elderly in protein versus placebo supplementation groups for 24 weeks. January 11, 2015 revised The protein supplementation group had no benefit with respect to weight gain or muscle strength. However, when resistive exercise training was coupled with protein supplementation, body weight gain was achieved. Furthermore, Tieland et al (52) randomized 62 frail elderly in two groups, both who received exercise training but only one group received protein supplements. A 0.7 kg weight gain was recorded in the protein supplement but none in the control group. The sustainability and the benefit in survival of such weight gain has not been determined, especially in the CKD non dialysis patients. Thus, the investigators propose that exercise with protein supplementation will benefit the CKD frail older population. Frail patients with or without CKD are at risk of experiencing psychological distress. Acknowledging one's own limitations, inability to perform up to certain social standards, losing function when comparing with friends or family members within same age group, depending on other's support can all be envisage as high risk factors for depression and/or other psychological ailments. Psychological distress is associated decrease quality of life of worse outcomes. Anxiety and depression are 2 major compounds of psychological distress. Patients can be screened with two easy to use scales: GAD-7 (for anxiety) and PHQ-9 (for depression). Were identified, these conditions should be treated by Psychiatry or Geriatrics services. Disability is best assessed using the standard ten variables addressed in the Barthel scale (56) are: presence or absence of fecal incontinence, presence or absence of urinary incontinence, help needed with grooming, help needed with toilet use, help needed with feeding, help needed with transfers (e.g. from chair to bed), help needed with walking, help needed with dressing, help needed with climbing stairs, and help needed with bathing. The Maryland State Medical Society holds the copyright for the Barthel Index. It may be used freely for noncommercial purposes with the following citation: Mahoney FI, Barthel D. "Functional evaluation: the Barthel Index." Maryland State Med Journal 1965;14:56-61. The scale is detailed in Appendix 2 and it is used with permission. Interventions targeted to improve frailty are limited by the patient's ability to collaborate and work with the treating team. Severe cognitive impaired patients lack insight and capacity and they are limited in their capacity to rehabilitated. MoCA (57) is a well validated tool at identifying cognitive impairment, it is widely available in many languages, and it is recommended by The Canadian Consensus Guidelines for Diagnosis and Treatment of Dementia for detection of Mild Cognitive Impairment and Alzheimer's disease. A cut-off of > 17 is generally used to exclude severe dementia. A language specific MoCA and instructions to administer the test are available online at http://www.mocatest.org/. The original English version is reproduced in Appendix 3. The primary objective of the proposed study is to assess the effect of intensive multidisciplinary interventions on survival, hospitalization and need to start dialysis. Secondary objectives include the assessment of the intervention in different stages of sarcopenia and measurement of physical functioning and nutritional parameters to evaluate the effect of such interventions among the frail CKD population. ;
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