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Modality-specific nutrition support in ESRD: weighing the evidence
1Department of Medicine, Metabolic Support Service, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. chertowg@medicine.ucsf.edu
Summary
Protein-calorie malnutrition is common in end-stage renal disease (ESRD) patients. Aggressive nutrition support like intradialytic parenteral nutrition (IDPN) may help, but more research is needed to prove its effectiveness and justify costs.
Area of Science:
- Nephrology
- Clinical Nutrition
- Public Health
Background:
- Protein-calorie malnutrition is prevalent in end-stage renal disease (ESRD) patients, increasing mortality and morbidity.
- Existing observational data suggest potential benefits of nutrition support interventions like intradialytic parenteral nutrition (IDPN).
- Limited prospective, randomized clinical trial data and high costs have led payers to discourage IDPN and similar therapies.
Purpose of the Study:
- To emphasize the critical need for nutritional health in patients undergoing renal replacement therapy.
- To define appropriate use cases for intradialytic parenteral nutrition (IDPN) in ESRD patients.
- To advocate for further research into novel nutrition support strategies and their impact on patient outcomes.
Main Methods:
- Review of existing literature on nutrition support in ESRD.
- Analysis of current payer policies and their impact on treatment access.
- Discussion of clinical scenarios and recommendations for nutrition support.
Main Results:
- IDPN should be reserved for select ESRD patients unable to meet nutritional needs orally or enterally.
- IDPN is not a substitute for total parenteral nutrition (TPN) when TPN is indicated.
- Exploration of alternative strategies like intradialytic oral or enteral nutrition is encouraged.
Conclusions:
- Ensuring nutritional health is paramount for all ESRD patients.
- Prospective clinical trials are urgently required to evaluate the efficacy of nutrition support on survival, hospitalization, quality of life, and function.
- Further investigation into cost-effective nutrition support methods is essential.