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  • Title: Impact of caloric prescriptions and degree of malnutrition on incidence of refeeding syndrome and clinical outcomes in patients with eating disorders: A retrospective review.
    Author: Schlapfer L, Fujimoto A, Gettis M.
    Journal: Nutr Clin Pract; 2022 Apr; 37(2):459-469. PubMed ID: 34751947.
    Abstract:
    BACKGROUND: For individuals with eating disorders (EDs), medical stabilization is paramount for restoration of body weight. Careful nutritional rehabilitation minimizes risk of refeeding syndrome. Study's purpose: describe clinical outcomes of pediatric/adolescent patients with EDs treated with lower calorie (<1300 kcals/day, n = 137), higher calorie (≥1400 kcals/day, n = 154) diets. METHODS: Retrospective chart reviews conducted for patients with known/suspected EDs. INCLUSION: patients ages 12-21 years with anorexia nervosa (AN), bulimia nervosa (BN), eating disorder not otherwise specified (EDNOS), atypical anorexia nervosa (AtAN). EXCLUSION: patients with other EDs, co-morbid medical conditions. Demographic information, length of stay, anthropometrics, prior weight loss were recorded. Malnutrition classifications based on: %mBMI, BMI z-score, prior weight loss percentage. Laboratory data, electrolyte supplementations were collected. Initial calorie intake/calorie intake day 7 were recorded. RESULTS: No significant differences in age, admit weight, BMI, BMI z-score, %mBMI at admission, weight gain between the two groups. Six (4.4%) patients in lower calorie group, 4 (2.6%) in higher calorie group met criteria for severe refeeding syndrome based on ASPEN consensus recommendations (P = .52). Higher calorie group length of stay was significantly shorter than lower calorie group (P = .006). Shorter length of stay associated with increased calorie intake (P < .001), greater %mBMI (P < .001). Higher calorie prescriptions were not associated with different rates of hypomagnesia (P = 1) and hypokalemia (P = .34). There was significant increase in rate of hypophosphatemia in the lower calorie group versus the higher calorie group. CONCLUSION: Higher calorie diets were associated with decreased length of stay without impacting risk of refeeding syndrome.
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