Treatment for Severe Protein Calorie Malnutrition

Assessment and Treatment

Severe protein calorie malnutrition should be treated aggressively with enteral nutritional therapy as the first-line approach, supplemented by parenteral nutrition when necessary, according to the American Association for the Study of Liver Diseases 1, 2
Evaluate for significant weight loss (>10% within past 6 months or >20% beyond 6 months indicates severe PCM) in patients with malnutrition 3, 4
Provide 25-30 kcal/kg/day of energy for patients with severe protein calorie malnutrition, as recommended by the Society of Critical Care Medicine 6
Ensure protein intake of 1.2-2.0 g/kg/day for patients with severe protein calorie malnutrition, according to the European Society for Clinical Nutrition and Metabolism 6
For obese patients with PCM, use hypocaloric high-protein nutrition with up to 2.5 g/kg ideal body weight/day of protein, as suggested by the American Society for Parenteral and Enteral Nutrition 6
Initiate enteral nutrition (EN) within 24-48 hours if oral intake is insufficient, as recommended by the European Society for Clinical Nutrition and Metabolism 6, 7
Provide high-energy, high-protein diet with reduced volume if needed for patients with severe malnutrition, according to the American Society for Parenteral and Enteral Nutrition 8
Consider oral nutritional supplements to increase caloric and protein intake for patients with severe malnutrition, as recommended by the European Society for Clinical Nutrition and Metabolism 9

Protein calorie malnutrition is found in 65-90% of patients with end-stage liver disease, according to the American Association for the Study of Liver Diseases 4, 5
Do not restrict protein in patients with liver disease as this can worsen malnutrition, as recommended by the European Association for the Study of the Liver 5
Provide enteral feeding for 3-4 weeks in hospitalized, severely malnourished patients with alcoholic cirrhosis to improve survival, hepatic encephalopathy, and liver function, according to the American Association for the Study of Liver Diseases 1, 2
Use indirect calorimetry when available to determine energy requirements for critically ill patients, as recommended by the Society of Critical Care Medicine 6
For obese critically ill patients, provide 11-14 kcal/kg actual body weight/day for BMI 30-50, and 22-25 kcal/kg ideal body weight/day for BMI >50, according to the American Society for Parenteral and Enteral Nutrition 6

Delaying nutritional support while awaiting diagnostic tests can worsen malnutrition, as warned by the European Society for Clinical Nutrition and Metabolism 9
Using BMI alone for assessment in patients with fluid retention (e.g., liver or kidney disease) can lead to inaccurate diagnosis, as noted by the American Society of Nephrology 4, 5
Implementing hypocaloric diets in hospitalized patients increases malnutrition risk, as cautioned by the American Society for Parenteral and Enteral Nutrition 8
Failing to recognize that fluid retention may mask the severity of weight loss in conditions like liver or kidney disease can lead to delayed diagnosis, as warned by the American Association for the Study of Liver Diseases 4