Parenteral nutrition via peripheral veins: a feasibility study

Area of Science:

• Clinical Nutrition
• Surgical Metabolism
• Parenteral Nutrition

Background:

• Parenteral nutrition is crucial for patients unable to consume food orally.
• Peripheral vein infusion offers a less invasive route for nutritional support.
• Optimizing nutrient composition for peripheral administration is essential to prevent complications.

Purpose of the Study:

• To evaluate the feasibility and effects of two different peripheral parenteral nutrition regimens.
• To compare nitrogen balance and metabolic markers between the two groups.
• To assess the incidence of venous thrombophlebitis.

Main Methods:

• Twenty patients undergoing uncomplicated surgery were randomized into two groups (n=10 each).
• Group I received 10g nitrogen and 1400 calories; Group II received 15g nitrogen daily via peripheral vein infusion for up to six days.
• Nitrogen balance, serum metabolites (3-hydroxybutyrate, non-esterified fatty acids, lactate), and venous thrombophlebitis were assessed.

Main Results:

• Both groups showed similar mean nitrogen balance, indicating comparable protein utilization.
• Group I exhibited suppressed lipolysis and ketogenesis, evidenced by elevated 3-hydroxybutyrate and lower non-esterified fatty acids.
• No significant differences in serum lactate or venous thrombophlebitis were observed between groups.

Conclusions:

• Peripheral parenteral nutrition regimens can be designed for safe infusion via peripheral veins.
• Specific nutrient compositions may influence metabolic pathways like lipolysis and ketogenesis.
• Further research is warranted to optimize peripheral parenteral nutrition protocols.