[The refeeding-syndrome in older patients]

Area of Science:

• Metabolic Medicine
• Geriatric Medicine
• Clinical Nutrition

Background:

• Refeeding syndrome is a life-threatening metabolic complication following nutritional therapy in malnourished patients.
• It is often unrecognized and untreated, characterized by intracellular electrolyte depletion (potassium, phosphate, sodium).
• Risk factors include malnutrition, weight loss, chemotherapy, diuretics, and alcoholism, with older adults being particularly vulnerable.

Purpose of the Study:

• To highlight the pathophysiology and clinical presentation of refeeding syndrome.
• To emphasize the high prevalence in older hospitalized patients (approximately 8%).
• To outline strategies for prevention and early treatment.

Main Methods:

• The abstract describes the pathophysiology of refeeding syndrome, focusing on electrolyte shifts.
• It reviews risk factors and prevalence, particularly in geriatric populations.
• It discusses clinical manifestations, including delirium in older patients.

Main Results:

• Refeeding syndrome develops within days of initiating nutritional therapy.
• Symptoms are often nonspecific, but the rapid onset is characteristic.
• Older hospitalized patients have an 8% incidence when nutritional therapy is introduced.

Conclusions:

• Close monitoring and supplementation of serum electrolytes (including magnesium and phosphate) are crucial for prevention and treatment.
• Thiamine supplementation and a slow increase in energy intake are fundamental.
• Early detection and intervention can mitigate the risks of refeeding syndrome.