P105 - ENERGY REQUIREMENTS AND INTAKE IN PATIENTS ADMITTED TO THE GASTRO-SURGICAL DEPARTMENT

P105

ENERGY REQUIREMENTS AND INTAKE IN PATIENTS ADMITTED TO THE GASTRO-SURGICAL DEPARTMENT

A. S. Jørgensen ^1,2, J. H. Jensen^1,2, L. B. Larsen^1,2, L. Jensen¹, T. Munk¹, A. S. Teisner³, H. H. Rasmussen^1,4,5, A. W. Knudsen^1,*

¹The Dietitian and Nutritional Research Unit, EATEN, Copenhagen University Hospital – Herlev and Gentofte, Herlev, ²Department of Nursing and Nutrition, University College Copenhagen, Faculty of Health, Copenhagen, ³Department of Gastroenterology, Copenhagen University Hospital – Herlev and Gentofte, Herlev, ⁴Center for Nutrition and Bowl Disease, Aalborg University Hospital, ⁵Clinical institute, Aalborg University, Aalborg, Denmark

Rationale: Proper nutrition is essential for hospitalized patients to ensure the effective outcome of treatment. Therefore, the aim of the study was to 1) measure the energy requirements of hospitalized patients and compare them with estimated requirements, and 2) compare energy requirements and intake.

Methods: A cross-sectional study including patients from the Gastro-Surgical Department, Herlev Hospital. The patients' energy requirement was measured by indirect calorimetry (IC), and estimated using the Harris-Benedict formula, multiplied by an activity factor (1.1-1.3). Estimated energy requirement from the electronic patient journal (EPJ) were collected, along with data on sex, age, BMI, and nutritional risk. Agreement between the formulas used and IC was defined as +/- 10%. The patients' energy intake was assessed by a 24-hour recall.

Results: We included n=75 patients (60% female), median age 74 (IQR:66-81) years, average BMI 24.8 (SD:4.8) kg/m². Nutritional risk was found in n=55 (73%). Average total energy requirements were as follows: IC 29.9 (SD:4.3) kcal/kg, estimated by EPJ 26.2 (SD:1.8) kcal/kg, and by the Harris-Benedict formula 24.8 (SD: 2.5) kcal/kg. Comparing the formulas with the IC measurements, 28% were estimated correctly using the Harris-Benedict formula, and 36% using EPJ. A 24-hour recall was conducted for n=51 (68%) patients, with an average intake of 18.0 (SD:9.3) kcal/kg. Energy intake ≥ 75% of the measured energy requirements was achieved by n=17 (33%). No difference in achieved energy intake was found between patient at nutrition risk versus not at-risk (33% vs. 33%, p=1.000).

Conclusion: Agreement between energy requirements measured by IC and estimated by the Harris-Benedict formula or EPJ was found in less than half of the patients. Two-thirds of the patients consumed less energy than their requirements, calling of optimization of nutritional treatment.

Disclosure of Interest: None declared