The impact of education and cooking methods on serum phosphate levels in patients on hemodialysis: 1-year study

The Management of Dietary Fiber Intake in Children With Chronic Kidney Disease - Clinical Practice Recommendations From the Pediatric Renal Nutrition Taskforce

The benefits of dietary fiber are widely accepted. Nevertheless, a substantial proportion of children fail to meet the recommended intake of dietary fiber. Achieving adequate fiber intake is especially challenging in children with chronic kidney disease (CKD). An international team of pediatric renal dietitians and pediatric nephrologists from the Pediatric Renal Nutrition Taskforce (PRNT) has developed clinical practice recommendations (CPRs) for the dietary intake of fiber in children and adolescents with CKD. In this CPR paper, we propose a definition of fiber, provide advice on the requirements and assessment of fiber intake, and offer practical guidance on optimizing dietary fiber intake in children with CKD. In addition, given the paucity of available evidence and to achieve consensus from international experts, a Delphi survey was performed in which all the clinical practice recommendations were reviewed.

Comparison of the effect of educational and self-management interventions on adherence to treatment in hemodialysis patients: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

Adherence to fluid intake, diet, and drug management is very important in hemodialysis patients. Educational and self-management interventions are frequently used to improve adherence to treatment in hemodialysis patients.

OBJECTIVES

To synthesize a comparison of the effect of educational and self-management interventions on adherence to treatment in hemodialysis patients in randomized controlled trials.

METHODS

Systematic searches were conducted using 11 multidisciplinary databases in June 2020. The PRISMA checklist was used. The subgroup analysis was used to compare the effect of educational and self-management interventions on adherence to fluid intake, diet, and drug management.

RESULTS

In the included studies, educational interventions were performed ranging from 15 to 60 minutes, in 1-72 sessions. Self-management interventions were performed ranging from 10 to 120 minutes, in 1-84 sessions. The overall effect of educational interventions was small on adherence to fluid intake (P = .019, Hedges' g = -0.39), diet in serum phosphorus level (P = .001, Hedges' g = -0.35), drug management (P = .002, Hedges' g = -0.44), and not significant on adherence to diet in serum potassium level (P = .181). The overall effect of self-management interventions was small on adherence to fluid intake (P = .001, Hedges' g = -0.19) and diet in serum phosphorus level (P < .001, Hedges' g = -0.42). Additionally, the overall effect of self-management interventions was moderate on adherence to diet in serum potassium level (P = .002, Hedges' g = -0.75) and drug management (P < .001, Hedges' g = -0.55). There was no difference between the educational and self-management interventions on adherence to fluid intake, diet, and drug management (P > .05).

CONCLUSIONS

The analysis shows that educational and self-management interventions had a beneficial effect on adherence to fluid intake, diet, and drug management and no difference between these interventions. Therefore, these interventions can be used by healthcare professionals. It is also recommended that these interventions be well defined and transferable to routine clinical practice.

Effect of Phosphate-Specific Diet Therapy on Phosphate Levels in Adults Undergoing Maintenance Hemodialysis: A Systematic Review and Meta-Analysis

BACKGROUND AND OBJECTIVES

Hyperphosphatemia is a persistent problem in individuals undergoing maintenance hemodialysis, which may contribute to vascular and bone complications. In some dialysis centers, dietitians work with patients to help them manage serum phosphate. Given the regularity of hyperphosphatemia in this population and constraints on kidney dietitian time, the authors aimed to evaluate the evidence for this practice.

DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS

There was a systematic review and meta-analysis of clinical trials. MEDLINE, Embase, CINAHL, Web of Science, Cochrane Central Register of Controlled Trials, and other databases were searched for controlled trials published from January 2000 until November 2019 in the English language. Included studies were required to examine the effect of phosphate-specific diet therapy provided by a dietitian on serum phosphate in individuals on hemodialysis. Risk of bias and certainty of evidence were assessed using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) method.

RESULTS

Of the 8054 titles/abstracts identified, 168 articles were reviewed, and 12 clinical trials (11 randomized, one nonrandomized) were included. Diet therapy reduced serum phosphate compared with controls in all studies, reaching statistical significance in eight studies, although overall certainty of evidence was low, primarily due to randomization issues and deviations from protocol. Monthly diet therapy (20-30 minutes) significantly lowered serum phosphate in patients with persistent hyperphosphatemia for 4-6 months, without compromising nutrition status (mean difference, -0.87 mg/dl; 95% confidence interval, -1.40 to -0.33 mg/dl), but appeared unlikely to maintain these effects if discontinued. Unfortunately, trials were too varied in design, setting, and approach to appropriately pool in meta-analysis, and were too limited in number to evaluate the timing, dose, and strategy of phosphate-specific diet therapy.

CONCLUSIONS

There is low-quality evidence that monthly diet therapy by a dietitian appears to be a safe and efficacious treatment for persistent hyperphosphatemia in patients on HD.

Phosphate binders in chronic kidney disease: an updated narrative review of recent data

Chronic kidney disease (CKD) is frequently accompanied by hyperphosphatemia. High serum phosphate usually requires dietary measures, adequate dialysis prescription and/or phosphate binders. For this narrative review a PubMed searched was undertaken to identify new publications on phosphate binders that had been published between January 2015 and July 2019. The present review summarizes this most recent information on dietary measures and their problems in treating hyperphosphatemia in CKD patients, overall effects of phosphate binders on cardiovascular mortality and morbidity, adherence to phosphate binder therapy as well as new data on specific aspects of the various phosphate binders on the market: calcium-containing phosphate binders, polymeric phosphate binders (sevelamer, bixalomer, colestilan), magnesium-containing phosphate binders, lanthanum carbonate, ferric citrate, sucroferric oxyhydroxide, and new compounds in development, in particular drugs targeting intestinal phosphate transporters.