Determinants and the Role of Self-Efficacy in a Sodium-Reduction Trial in Hemodialysis Patients

Goal Setting and Attainment in a Randomised Controlled Trial of Digital Health-Assisted Lifestyle Interventions in People with Kidney and Liver Disease

INTRODUCTION

Goal setting is an effective strategy in altering fitness and dietary behaviours. The goal attainment scale (GAS) is a patient-reported outcome measure that can be used to quantify goal achievement. The GAS has not been extensively assessed in lifestyle intervention trials. This study aimed to describe the goal setting process and assess the impact of a digital exercise and diet service and self-efficacy on goal attainment in people with chronic disease and at increased cardiometabolic risk.

METHODS

This study presents a single-centre, 26-week, randomised controlled trial (RCT) comparing standard care to digital health technologies (text messages, nutrition/exercise app, video consultations with dietitian and/or exercise physiologist). The comparator group was offered dietitian review (per standard care), and both groups received a wearable activity monitor. Individualised goal setting was facilitated prior to randomisation. Goal importance, performance measures, and self-efficacy were determined by participants. Goal outcome and 'Change in GAS' scores, reflecting the difference between baseline and follow-up performance, were calculated using validated formulae.

RESULTS

Goal setting was completed and reviewed by 66 participants, with a median age of 51 years and 56% being male. The most common goals related to weight loss (46%), fitness (29%), and diet (15%). Most participants (62%) reported improvements in their goals, with most improvements in dietary (71%), fitness (52%), and weight loss (39%) goals. There was no significant difference in goal outcomes between intervention and comparator groups (p = 0.99). There was, however, a significant correlation between nutrition self-efficacy and dietary goal achievement (p = 0.04).

CONCLUSIONS

The novelty and feasibility of goal setting and attainment were demonstrated in this RCT of lifestyle interventions in people with chronic disease. Though the intervention did not significantly improve goal attainment, most participants reported improvements in their lifestyle goals. There were greater improvements in dietary goals than in fitness or weight loss goals. Participant-led goal setting with GAS and participant self-efficacy has potentially important applications in future lifestyle modification research and clinical implementation endeavours.

The Effectiveness of Telehealth Self-Management Interventions to Improve the Health Outcomes of Adults Undergoing Haemodialysis: A Systematic Review and Meta-Analysis

BACKGROUND

Haemodialysis is a life-sustaining treatment for patients suffering from advanced chronic kidney disease that persists without respite. Adherence to complex haemodialysis regimens demands rigorous self-management. Current literature has suggested the potential of novel telehealth technologies in supporting the self-management of haemodialysis patients, but this remains inconclusive.

AIM

To synthesise available evidence to determine the effectiveness of telehealth self-management interventions on the health outcomes of adults undergoing haemodialysis.

DESIGN

A systematic review and meta-analysis (reported according to the PRISMA Guidelines).

METHODS

Nine electronic databases (PubMed, EMBASE, Cochrane Central Register of Controlled Trials, MEDLINE, CINAHL, PsycINFO, Scopus, Web of Science and ProQuest Dissertations & Theses Global), trial registries and grey literature were searched from inception till 1 December 2023 for randomised controlled trials on the effectiveness of telehealth self-management interventions for haemodialysis patients. Two independent reviewers performed screening, data extraction and risk-of-bias appraisal using Cochrane RoB tool-1. Meta-analyses using Review Manager Web synthesised the interventional effects. Cochrane GRADE assessed the overall quality of evidence.

RESULTS

Fifteen randomised controlled trials (involving 1003 participants) were included. Telehealth self-management interventions had a medium statistically significant effect on improving self-efficacy (SMD = 0.54, 95% CI [0.25, 0.83], Z = 3.69, p = 0.0002). Additional meta-analyses for the outcomes of knowledge, treatment adherence, health-related quality of life, inter-dialytic weight gain and serum electrolyte levels were non-statistically significant but appeared promising to be improved by telehealth self-management. The overall certainty of evidence for all outcomes was very low.

CONCLUSIONS

This review provided insights into the clinical importance of telehealth self-management interventions in self-efficacy enhancement among haemodialysis patients. Future researchers are encouraged to optimise telehealth components relevant to the worldwide needs and cultural diversity of adults undergoing haemodialysis.

IMPLICATION FOR PROFESSIONAL CARE

Adoption of technological healthcare delivery is vital in establishing positive health outcomes and sustainability of routine patient care pathways.

PATIENT OR PUBLIC CONTRIBUTION

None.

REGISTRATION

PROSPERO CRD42024438860.

Dietary app for patients with kidney disease: Qualitative evaluation of a prototype

BACKGROUND

Individual dietary recommendations change as loss of kidney function progresses. Adopting these recommendations in everyday life poses major challenges for patients. Individualising dietary counselling is crucial to easy accessibility.

AIM

To investigate patients' needs with regard to a dietary app for patients with chronic kidney disease, patients', and health professionals' immediate responses to such a dietary app and suggestions for improvement and further development of a prototype.

DESIGN

A prototype of the dietary app has been developed and demonstrates how all information it provides can be tailored to the individual patient according to stage of disease, anthropometrics, and phosphate and potassium levels. A qualitative evaluation of the prototype was conducted using the Consolidated Criteria for Reporting Qualitative Research checklist for reporting.

APPROACH

Seven individual interviews and four focus groups were analysed using interpretive description.

PARTICIPANTS

Individual interviews with seven patients who have stage 4 or 5 chronic kidney disease and are not on dialysis, and four focus groups: one with participants from the individual interviews, one with six patients on haemodialysis, one with 13 kidney dieticians and one with seven health professionals.

FINDINGS

Both patients and healthcare professionals were positive about the app. Individualisation is necessary for the app to work in practice. The patients reported access to a diet diary and recipes as important elements.

CONCLUSION

There is a need to improve the tools we use today to enhance patient adherence to dietary recommendations. The development of an app for individual dietary counselling could be a useful solution.

Application of intelligent nursing system based on big data in maintenance hemodialysis patients

Maintenance hemodialysis (MHD) is one of the most important renal replacement therapies for patients with end-stage renal disease. However, long-term and frequent treatment not only damages the physiological functions of patients but also leads to serious economic burdens and mental stress. This can easily cause a series of psychological disorders in patients, resulting in severe rejection and fear of MHD. To reduce patient resistance and improve the quality of life of MHD, this article built an intelligent nursing system based on big data and then used the constructed intelligent nursing system to research MHD. Through experiments, it has been found that compared to self-efficacy intervention, intelligent nursing systems can control the concurrent rate of MHD patients below 14 %, and self-efficacy intervention methods can control the concurrent rate of MHD patients above 13 %. Moreover, using intelligent nursing systems can improve the ability of MHD patients to self-care. At the same time, before the use of intelligent nursing systems, the nursing satisfaction of MHD patients also varied greatly, with the overall satisfaction rate after use being 70 % higher than before. Using intelligent nursing systems can improve the satisfaction of MHD patients with nursing outcomes.

Influence of teach-back strategy on hemodialysis related knowledge level, self-efficacy and self-management in patients receiving maintenance hemodialysis

To investigate the effect of teach-back strategy on hemodialysis related knowledge level, self-efficacy and self-management among hemodialysis patients. The research is a quasi-randomized control trial. A total of 92 patients receiving maintenance hemodialysis were randomly divided into observation group (n = 46) and control group (n = 46) by random number table method. The control group received conventional health education, and the observation group received teach-back. The intervention lasted six months. The hemodialysis related knowledge level, self-efficacy and self-management of the two groups were evaluated before and after the intervention. There were no significant difference on hemodialysis related knowledge level, self-efficacy and self-management scores between the two groups before intervention (P > 0.05). After intervention, the scores of hemodialysis knowledge in the observation group was higher than that in the control group and before intervention. The total scores of self-efficacy and items "3,4,5" were higher than those of the control group. The total scores of self-efficacy and item "1~6" in the observation group were higher than before intervention. The total scores of self-management and the three subscales of "problem solving", "partnership" and "emotional processing" were higher than those of the control group and before intervention. All of the above differences were statistically significant (P < 0.05). Teach-back is helpful to improve the hemodialysis related knowledge level, self-efficacy and self-management level of patients receiving maintenance hemodialysis, and it is worth to be popularized clinically.

The Effects of a Tailored Dietary Education Program for Older Adult Patients on Hemodialysis: A Preliminary Study

This study aimed to investigate the overall effects of a tailored dietary education program for older adult patients on hemodialysis (HD) based on self-efficacy theory, dietary knowledge and habits, nutritional intake, and biochemical parameters. A nonequivalent control group pre-test-post-test design was conducted for 8 weeks. The experimental and control groups received a weekly nutritional program and standard nursing care with an additional educational session, respectively. A clinical survey was conducted before and after the intervention. After the intervention, self-efficacy, dietary knowledge, and dietary habits were higher in the experimental group than in the control group. Moreover, carbohydrate, phosphorus, and sodium intake significantly decreased post-intervention in the experimental group but not in the control group. The dietary education program for older HD patients showed positive effects on boosting their self-efficacy, increasing dietary knowledge, improving dietary habits, and decreasing carbohydrate, calcium, phosphorus, and sodium intake.

Sodium Management in Kidney Disease: Old Stories, New Tricks

Excessive dietary sodium intake is associated with an increased risk of hypertension, especially in the setting of chronic kidney disease (CKD). Although implementation of a low-sodium diet in patients with CKD generally is recommended, data supporting the efficacy of this practice is mostly opinion-based. Few controlled studies have investigated the specific association of dietary sodium intake and cardiovascular events and mortality in CKD. Furthermore, in epidemiologic studies, the association of sodium intake with CKD progression, cardiovascular risk, and mortality is not homogeneous, and both low- and high-sodium intake has been associated with adverse health outcomes in different studies. In general, the adverse effects of high dietary sodium intake are more apparent in the setting of advanced CKD. However, there is no established definitive target level of dietary sodium intake in different CKD stages based on glomerular filtration rate and albuminuria/proteinuria. This review discusses the current challenges regarding the rationale of sodium restriction, target levels and assessment of sodium intake, and interventions for sodium restrictions in CKD in relation to clinical outcomes.

Interventions for improving health literacy in people with chronic kidney disease

BACKGROUND

Low health literacy affects 25% of people with chronic kidney disease (CKD) and is associated with increased morbidity and death. Improving health literacy is a recognised priority, but effective interventions are not clear.

OBJECTIVES

This review looked the benefits and harms of interventions for improving health literacy in people with CKD.

SEARCH METHODS

We searched the Cochrane Kidney and Transplant Register of Studies up to 12 July 2022 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. We also searched MEDLINE (OVID) and EMBASE (OVID) for non-randomised studies.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) and non-randomised studies that assessed interventions aimed at improving health literacy in people with CKD.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed studies for eligibility and performed risk of bias analysis. We classified studies as either interventions aimed at improving aspects of health literacy or interventions targeting a population of people with poor health literacy. The interventions were further sub-classified in terms of the type of intervention (educational, self-management training, or educational with self-management training). Results were expressed as mean difference (MD) or standardised mean difference (SMD) with 95% confidence intervals (CI) for continuous outcomes and risk ratios (RR) with 95% CI for dichotomous outcomes.

MAIN RESULTS

We identified 120 studies (21,149 participants) which aimed to improve health literacy. There were 107 RCTs and 13 non-randomised studies. No studies targeted low literacy populations. For the RCTs, selection bias was low or unclear in 94% of studies, performance bias was high in 86% of studies, detection bias was high in 86% of studies reporting subjective outcomes and low in 93% of studies reporting objective outcomes. Attrition and other biases were low or unclear in 86% and 78% of studies, respectively. Compared to usual care, low certainty evidence showed educational interventions may increase kidney-related knowledge (14 RCTs, 2632 participants: SMD 0.99, 95% CI 0.69 to 1.32; I² = 94%). Data for self-care, self-efficacy, quality of life (QoL), death, estimated glomerular filtration rate (eGFR) and hospitalisations could not be pooled or was not reported. Compared to usual care, low-certainty evidence showed self-management interventions may improve self-efficacy (5 RCTs, 417 participants: SMD 0.58, 95% CI 0.13 to 1.03; I² = 74%) and QoL physical component score (3 RCTs, 131 participants: MD 4.02, 95% CI 1.09 to 6.94; I² = 0%). There was moderate-certainty evidence that self-management interventions probably did not slow the decline in eGFR after one year (3 RCTs, 855 participants: MD 1.53 mL/min/1.73 m², 95% CI -1.41 to 4.46; I² = 33%). Data for knowledge, self-care behaviour, death and hospitalisations could not be pooled or was not reported. Compared to usual care, low-certainty evidence showed educational with self-management interventions may increase knowledge (15 RCTs, 2185 participants: SMD 0.65, 95% CI 0.36 to 0.93; I² = 90%), improve self-care behaviour scores (4 RCTs, 913 participants: SMD 0.91, 95% CI 0.00 to 1.82; I² =97%), self-efficacy (8 RCTs, 687 participants: SMD 0.50, 95% CI 0.10 to 0.89; I² = 82%), improve QoL physical component score (3 RCTs, 2771 participants: MD 2.56, 95% CI 1.73 to 3.38; I² = 0%) and may make little or no difference to slowing the decline of eGFR (4 RCTs, 618 participants: MD 4.28 mL/min/1.73 m², 95% CI -0.03 to 8.85; I² = 43%). Moderate-certainty evidence shows educational with self-management interventions probably decreases the risk of death (any cause) (4 RCTs, 2801 participants: RR 0.73, 95% CI 0.53 to 1.02; I² = 0%). Data for hospitalisation could not be pooled.

AUTHORS' CONCLUSIONS

Interventions to improve aspects of health literacy are a very broad category, including educational interventions, self-management interventions and educational with self-management interventions. Overall, this type of health literacy intervention is probably beneficial in this cohort however, due to methodological limitations and high heterogeneity in interventions and outcomes, the evidence is of low certainty.

Relationship between patient activation and self-efficacy among patients undergoing hemodialysis: a cross-sectional study

Background

Patient activation in chronic kidney disease (CKD) is increasingly being prioritized and considered a quality metric in CKD. Given the importance of patients’ activation in improving the quality of chronic disease care, this study aimed to assess patients’ activation levels and its relationship with self-efficacy among patients undergoing hemodialysis.

Methods

In this cross-sectional study, a total of 180 patients undergoing maintenance hemodialysis were selected by random sampling from the largest hemodialysis center (dialysis center of Emam Reza hospital, Tabriz) in Iran. Data were collected by demographics, patient activation measure, and chronic kidney disease self-efficacy (CKD-SE) scale from March to May 2021. Collected data were analyzed using SPSS software (ver. 26) using ANOVA, t-test, Pearson correlation coefficient, and multiple regression tests.

Results

The majority of the participants (35%) were at level 1 of activation and only 28.9% of the individuals were at level 4. According to the results, the mean score of self-efficacy in patients undergoing hemodialysis (in a possible range of 0–10) was 5.50 ± 1.45. Multiple regression analysis showed that factors including self-efficacy, educational level, and marital status were significant predictors of change in patient activation (R2 = 0.85, adjusted R2 = 0.66, p < 0.001). The results showed that self-efficacy was the main predictor of patient activation (β = 0.49, p < 0.001).

Conclusion

According to the result, improving the patients' self-efficacy could improve the patient's activation. Moreover, patients with lower educational level reported the lower activation score; therefore, health care providers should improve the knowledge of patients with lower educational level, encourage them to be more active in their health care, and help them in providing more tailored strategies to improve the quality of care more efficiently. Furthermore, Measuring patients' activation level at admission to the dialysis unit is recommended for all patients undergoing hemodialysis.

Challenges of conducting a remote behavioral weight loss study: Lessons learned and a practical guide

OBJECTIVES

To describe challenges and lessons learned in conducting a remote behavioral weight loss trial.

METHODS

The Personal Diet Study is an ongoing randomized clinical trial which aims to compare two mobile health (mHealth) weight loss approaches, standardized diet vs. personalized feedback, on glycemic response. Over a six-month period, participants attended dietitian-led group meetings via remote videoconferencing and were encouraged to self-monitor dietary intake using a smartphone app. Descriptive statistics were used to report adherence to counseling sessions and self-monitoring. Challenges were tracked during weekly project meetings.

RESULTS

Challenges in connecting to and engaging in the videoconferencing sessions were noted. To address these issues, we provided a step-by-step user manual and video tutorials regarding use of WebEx, encouraged alternative means to join sessions, and sent reminder emails/texts about the WebEx sessions and asking participants to join sessions early. Self-monitoring app-related issue included inability to find specific foods in the app database. To overcome this, the study team incorporated commonly consumed foods as "favorites" in the app database, provided a manual and video tutorials regarding use of the app and checked the self-monitoring app dashboard weekly to identify nonadherent participants and intervened as appropriate. Among 135 participants included in the analysis, the median attendance rate for the 14 remote sessions was 85.7% (IQR: 64.3%-92.9%).

CONCLUSIONS

Experience and lessons shared in this report may provide critical and timely guidance to other behavioral researchers and interventionists seeking to adapt behavioral counseling programs for remote delivery in the age of COVID-19.

Altered dietary salt intake for people with chronic kidney disease

BACKGROUND

Evidence indicates that reducing dietary salt may reduce the incidence of heart disease and delay decline in kidney function in people with chronic kidney disease (CKD). This is an update of a review first published in 2015.

OBJECTIVES

To evaluate the benefits and harms of altering dietary salt for adults with CKD.

SEARCH METHODS

We searched the Cochrane Kidney and Transplant Register of Studies up to 6 October 2020 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov.

SELECTION CRITERIA

Randomised controlled trials comparing two or more levels of salt intake in adults with any stage of CKD.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed studies for eligibility, conducted risk of bias evaluation and evaluated confidence in the evidence using GRADE. Results were summarised using random effects models as risk ratios (RR) for dichotomous outcomes or mean differences (MD) for continuous outcomes, with 95% confidence intervals (CI).

MAIN RESULTS

We included 21 studies (1197 randomised participants), 12 in the earlier stages of CKD (779 randomised participants), seven in dialysis (363 randomised participants) and two in post-transplant (55 randomised participants). Selection bias was low in seven studies, high in one and unclear in 13. Performance and detection biases were low in four studies, high in two, and unclear in 15. Attrition and reporting biases were low in 10 studies, high in three and unclear in eight. Because duration of the included studies was too short (1 to 36 weeks) to test the effect of salt restriction on endpoints such as death, cardiovascular events or CKD progression, changes in salt intake on blood pressure and other secondary risk factors were examined. Reducing salt by mean -73.51 mmol/day (95% CI -92.76 to -54.27), equivalent to 4.2 g or 1690 mg sodium/day, reduced systolic/diastolic blood pressure by -6.91/-3.91 mm Hg (95% CI -8.82 to -4.99/-4.80 to -3.02; 19 studies, 1405 participants; high certainty evidence). Albuminuria was reduced by 36% (95% CI 26 to 44) in six studies, five of which were carried out in people in the earlier stages of CKD (MD -0.44, 95% CI -0.58 to -0.30; 501 participants; high certainty evidence). The evidence is very uncertain about the effect of lower salt intake on weight, as the weight change observed (-1.32 kg, 95% CI -1.94 to -0.70; 12 studies, 759 participants) may have been due to fluid volume, lean tissue, or body fat. Lower salt intake may reduce extracellular fluid volume in the earlier stages of CKD (-0.87 L, 95% CI -1.17 to -0.58; 3 studies; 187 participants; low certainty evidence). The evidence is very uncertain about the effect of lower salt intake on reduction in antihypertensive dose (RR 2.45, 95% CI 0.98 to 6.08; 8 studies; 754 participants). Lower salt intake may lead to  symptomatic hypotension (RR 6.70, 95% CI 2.40 to 18.69; 6 studies; 678 participants; moderate certainty evidence). Data were sparse for other types of adverse events.

AUTHORS' CONCLUSIONS

We found high certainty evidence that salt reduction reduced blood pressure in people with CKD, and albuminuria in people with earlier stage CKD in the short-term. If such reductions could be maintained long-term, this effect may translate to clinically significant reductions in CKD progression and cardiovascular events. Research into the long-term effects of sodium-restricted diet for people with CKD is warranted.

Pilot study to reduce interdialytic weight gain by provision of low-sodium, home-delivered meals in hemodialysis patients

INTRODUCTION

Patients with kidney failure undergoing maintenance hemodialysis (HD) therapy are routinely counseled to reduce dietary sodium intake to ameliorate sodium retention, volume overload, and hypertension. However, low-sodium diet trials in HD are sparse and indicate that dietary education and behavioral counseling are ineffective in reducing sodium intake. This study aimed to determine whether 4 weeks of low-sodium, home-delivered meals in HD patients reduces interdialytic weight gain (IDWG). Secondary outcomes included changes in dietary sodium intake, thirst, xerostomia, blood pressure, volume overload, and muscle sodium concentration.

METHODS

Twenty HD patients (55 ± 12 years, body mass index [BMI] 40.7 ± 16.6 kg/m² ) were enrolled in this study. Participants followed a usual (control) diet for the first 4 weeks followed by 4 weeks of three low-sodium, home-delivered meals per day. We measured IDWG, hydration status (bioimpedance), standardized blood pressure (BP), food intake (3-day dietary recall), and muscle sodium (magnetic resonance imaging) at baseline (0 M), after the 4-week period of usual diet (1 M), and after the meal intervention (2 M).

FINDINGS

The low-sodium meal intervention significantly reduced IDWG when compared to the control period (-0.82 ± 0.14 kg; 95% confidence interval, -0.55 to -1.08 kg; P < 0.001). There were also 1 month (1 M) to 2 month (2 M) reductions in dietary sodium intake (-1687 ± 297 mg; P < 0.001); thirst score (-4.4 ± 1.3; P = 0.003), xerostomia score (-6.7 ± 1.9; P = 0.002), SBP (-18.0 ± 3.6 mmHg; P < 0.001), DBP (-5.9 ± 2.0 mmHg; P = 0.008), and plasma phosphorus -1.55 ± 0.21 mg/dL; P = 0.005), as well as a 0 M to 2 M reduction in absolute volume overload (-1.08 ± 0.33 L; P = 0.025). However, there were no significant changes in serum or tissue sodium (all P > 0.05).

DISCUSSION

Low-sodium, home-meal delivery appears to be an effective method for improving volume control and blood pressure in HD patients. Future studies with larger sample sizes are needed to examine the long-term effects of home-delivered meals on these outcomes and to assess cost-effectiveness.

The relationship of volume overload and its control to hypertension in hemodialysis patients

Hypertension is highly prevalent and associated with poor clinical outcomes among individuals receiving maintenance hemodialysis (HD). Volume overload is a key modifiable contributor to hypertension and cardiovascular disease in the HD population. Despite their importance, assessment and treatment of volume overload and hypertension remain major clinical challenges and have substantial implications for both clinical outcomes and patient experiences of care. This review will summarize current data on the diagnosis, epidemiology, pathophysiology, and clinical consequences of hypertension and volume overload in HD patients. We will also identify priorities for future research studies.