Adequate nutritional support in critically ill patients is important, however, sometimes it has been neglected in perioperative period of patients at surgical intensive care units (SICU). The aim of this study was to investigate whether approaching target calorie intake of surgical patients influences on their clinical outcomes. A total of 279 patients who admitted at SICU in perioperative period from August 2014 to July 2016 at our hospital were analyzed. Demographics, supplied calorie amount and its method, lengths of SICU and hospital stay, and mortality of study population were collected. Among 279 patients, 103 patietns (36.9%) approached target calorie intake during SICU stay. Patients who approached target calorie intake had significantly decreased length of stay in SICU (10.78 ± 11.5 vs. 15.3 ± 9.9, p = 0.001) and hospital (54.52 ± 40.6 vs. 77.72±62.2, p < 0.001), than those did not, however there was no significant difference of mortality (9.7% vs. 8.5%, p = 0.829). Enteral feeding was a significant factor for target calorie achievement (odd ratio [OR], 2.029; 95% confidence interval [CI], 1.096–3.758; p = 0.024) and especially in patients with ≤ 7 days of SICU stay (OR, 4.13; 95% CI, 1.505–11.328; p = 0.006). Target calorie achievement in surgical patients improves clinical outcomes and enteral feeding, especially in early postoperative period would be an effective route of nutrition.
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