
Intradialytic parenteral nutrition (IDPN) is a form of nutritional therapy for malnourished patients undergoing hemodialysis or peritoneal dialysis. It involves the infusion of a solution containing amino acids, glucose, lipids, and other nutrients through the venous blood line during dialysis sessions. IDPN is typically considered when oral supplements, dietary counselling, and tube feeding have failed to improve the nutritional status of patients. The effectiveness of IDPN has been studied in both adult and paediatric populations, with mixed results. While some studies suggest that IDPN can improve nutritional parameters and reduce morbidity and mortality, others have found no significant improvement in patient health outcomes compared to oral supplements alone. Hospital pharmacies play a crucial role in preparing IDPN solutions according to individual patient prescriptions, and its administration is carefully monitored to ensure patient safety and effectiveness.
| Characteristics | Values |
|---|---|
| Definition | Intradialytic parenteral nutrition (IDPN) is intravenous (IV) nutrition designed specifically for malnourished hemodialysis patients. |
| Use | IDPN is used to treat protein calorie malnutrition in an effort to decrease associated morbidity and mortality. |
| Administration | Administered through the venous port of the dialysis tubing, typically 30 minutes after dialysis has begun, and continued throughout the dialysis session. |
| Composition | A typical solution contains 10% amino acids, 40% to 50% glucose, 10% to 20% lipids, or a mixture of carbohydrates or lipids, depending on patient needs. |
| Effectiveness | Studies have shown mixed results. Some show an improvement in nutritional status, while others show no improvement in patient health outcomes like mortality, hospitalization, or quality of life. |
| Regulation | IDPN solutions are compounded by individual pharmacies from individual ingredients based on prescriptions and are not required to have approval from the U.S. FDA has increased its regulatory oversight with the Drug Quality and Security Act of 2013. |
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What You'll Learn
- Intradialytic Parenteral Nutrition (IDPN) is used to treat malnutrition in hemodialysis patients
- IDPN is administered through the venous port of the dialysis tubing
- IDPN is covered by Medicare Part A for hospitalized patients
- IDPN solutions are similar to those used for total parenteral nutrition (TPN)
- IDPN is controversial due to a lack of large-scale studies confirming its effectiveness

Intradialytic Parenteral Nutrition (IDPN) is used to treat malnutrition in hemodialysis patients
Intradialytic Parenteral Nutrition (IDPN) is a form of supplemental nutrition used to treat malnutrition in patients receiving hemodialysis. Hemodialysis patients often suffer from protein-energy wasting (PEW), which is caused by a variety of factors leading to undernutrition and the breakdown of muscle protein.
The first line of treatment for malnutrition in hemodialysis patients is to encourage oral intake. If this fails, enteral or parenteral nutrition may be required. IDPN is a technique that involves the infusion of hyperalimentation fluids at the time of hemodialysis or peritoneal dialysis. It is administered through the venous port of the dialysis tubing, typically 30 minutes after dialysis has begun, and continued throughout the session.
IDPN solutions are similar to those used for total parenteral nutrition (TPN) and are tailored to individual patient needs. A typical solution contains 10% amino acids, 40-50% glucose, and 10-20% lipids, or a mixture of carbohydrates or lipids. IDPN is particularly useful for patients who are unable to tolerate oral nutritional supplements (ONS) and their adverse effects.
While IDPN has shown beneficial effects in hemodialysis patients with PEW, there is still controversy over its indications and benefits. More well-controlled, long-term studies are needed to fully understand the role of IDPN in treating malnutrition in hemodialysis patients.
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IDPN is administered through the venous port of the dialysis tubing
Intradialytic parenteral nutrition (IDPN) is a form of nutritional support for patients with AKI and those receiving maintenance hemodialysis or peritoneal dialysis. It involves the infusion of hyperalimentation fluids at the time of dialysis to treat protein calorie malnutrition and decrease associated morbidity and mortality.
IDPN solutions typically contain amino acids, glucose, lipids, and other nutrients tailored to patient needs. The administration of IDPN requires careful planning and setup by trained professionals. The IDPN bag must be agitated before inserting the administration set, and the infusion line is connected to the venous chamber of the dialysis machine.
If IDPN is temporarily interrupted during a dialysis session and then resumed, the infusion rate should not be increased to compensate for lost time. Instead, it is preferable to extend the dialysis session or discard excess IDPN volume afterward.
In cases where antibiotics requiring extended infusion are also necessary, IDPN is delivered through the arterial port while the venous chamber is used for antibiotics. However, using the arterial port for IDPN may result in greater losses of its ingredients in the dialysate.
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IDPN is covered by Medicare Part A for hospitalized patients
In the United States, Medicare Part A provides hospital insurance and covers inpatient hospital care. For a patient to be covered by Medicare Part A, they must be admitted to the hospital as an inpatient after an official doctor's order and the hospital must accept Medicare.
Intradialytic parenteral nutrition (IDPN) is a technique used to treat protein calorie malnutrition in patients with chronic kidney disease on hemodialysis. It involves the infusion of hyperalimentation fluids at the time of hemodialysis or peritoneal dialysis. IDPN solutions typically contain amino acids, glucose, lipids, carbohydrates, or a mixture of these, depending on the patient's needs.
While there is limited evidence on the effectiveness of IDPN in pediatric patients, it has been shown to be beneficial for malnourished or at-risk adults with chronic kidney disease. IDPN may be considered medically necessary for patients who are candidates for total parenteral nutrition (TPN), meaning they have a severe pathology of the alimentary tract that does not allow for the absorption of sufficient nutrients.
As IDPN can be medically necessary for certain patients, it may be covered by Medicare Part A if the patient meets the criteria for inpatient hospital care and the hospital accepts Medicare. However, it is important to note that Medicare has specific coverage policies and requirements that determine what services are covered and to what extent. Therefore, patients should consult with their healthcare providers and Medicare to understand their specific coverage.
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IDPN solutions are similar to those used for total parenteral nutrition (TPN)
Intradialytic parenteral nutrition (IDPN) refers to the infusion of hyperalimentation fluids at the time of hemodialysis or peritoneal dialysis. IDPN solutions are similar to those used for total parenteral nutrition (TPN).
A typical IDPN solution contains 10% amino acids, 40% to 50% glucose, 10% to 20% lipids, or a mixture of carbohydrates or lipids, depending on the patient's needs. During hemodialysis, the IDPN infusion is administered through the venous port of the dialysis tubing, typically 30 minutes after dialysis has begun, and is continued throughout the dialysis session.
TPN solutions, on the other hand, are compounded by individual pharmacies from individual ingredients (e.g. dextrose, amino acids, trace elements) into a finished medication based on a prescription. TPN is indicated when there is impaired gastrointestinal function and contraindications to enteral nutrition. It is considered the standard of care for adult patients who are unable to use their digestive systems to absorb nutrients.
Both IDPN and TPN are used to treat malnutrition and improve nutritional status in patients with chronic kidney disease. IDPN is often suggested for patients on maintenance hemodialysis when nutritional requirements cannot be met through oral or enteral intake. Similarly, TPN may be necessary for patients with severe pathology of the alimentary tract, allowing them to maintain weight and strength.
While IDPN and TPN share similarities in their solutions and applications, they differ in their specific indications and methods of administration.
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IDPN is controversial due to a lack of large-scale studies confirming its effectiveness
Intradialytic parenteral nutrition (IDPN) is a technique that involves the infusion of hyperalimentation fluids during hemodialysis or peritoneal dialysis. It is used to treat protein calorie malnutrition and decrease associated morbidity and mortality.
For example, a systematic review of 12 studies found that IDPN did not improve clinically relevant outcomes compared to dietary counseling or oral supplementation, and had varied results compared to usual care. Similarly, a randomized controlled trial of oral supplements with and without IDPN failed to show any advantage of adding IDPN. This evidence is further supported by the French Intradialytic Nutrition Evaluation Study (FineS), which found that one year of individualized IDPN treatment did not improve 2-year mortality, hospitalization rate, or quality of life in 186 malnourished chronic hemodialysis patients.
Additionally, there is limited data on the adverse events and cost-effectiveness of IDPN. The interpretation of existing studies is limited by heterogeneity in outcomes, treatment duration, and follow-up duration. Furthermore, the effectiveness of IDPN in pediatric patients is also uncertain, with more studies needed before it can be considered a standard treatment option.
While IDPN may be a reasonable treatment option for patients who fail to respond to initial treatments or are unable to receive them due to gastrointestinal issues, its routine use is not currently supported by strong evidence. More large-scale, well-controlled studies are needed to confirm the effectiveness and cost-effectiveness of IDPN.
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Frequently asked questions
Intradialytic parenteral nutrition (IDPN) is intravenous (IV) nutrition designed for malnourished hemodialysis patients. IDPN solutions are infused during hemodialysis sessions and contain important nutrients such as amino acids, dextrose, and lipids.
IDPN is used to treat protein calorie malnutrition in malnourished hemodialysis patients, with the goal of reducing associated morbidity and mortality. It is often considered when other methods such as dietary counselling, oral supplements, and tube feeding have failed to improve the patient's nutritional status.
IDPN is administered through the venous access during hemodialysis treatment. It is infused into the venous blood line or venous dialysis drip chamber. The solution is typically given 30 minutes after dialysis has begun and continued throughout the session.
IDPN helps malnourished patients meet their nutritional needs, improving their overall health and reducing hospitalisation rates. It can also lead to an improvement in nutritional status, which is associated with a higher long-term survival rate.










































