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Micronutrient deficiencies in copper, zinc, and vitamin D as predictors of clinical outcomes in critically ill surgical patients in Korea: a retrospective cohort study
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Jiae Kim, Yanghee Jun, Ye Rim Chang, Jong-Kwan Baek, Hak-Jae Lee, Hyewon Han, Suk-Kyung Hong
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Ann Clin Nutr Metab 2024;16(3):158-167. Published online December 1, 2024
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DOI: https://doi.org/10.15747/ACNM.2024.16.3.158
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 Abstract
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- Purpose: To investigate the prevalence of copper, zinc, and vitamin D deficiencies in surgical intensive care unit (SICU) patients and the associations between those deficiencies and clinical outcomes.
Methods: We conducted a retrospective study of 210 patients admitted to the SICU of Asan Medical Center between June 2020 and June 2022. Micronutrient levels were measured within 7 days of SICU admission. Primary outcomes were the mortality rate, length of SICU stay, hospital stay duration, and mechanical ventilation duration.
Results: Copper deficiency was found in 35% (68/193), zinc deficiency in 52% (100/193), and severe vitamin D deficiency in 46% (82/179) of patients. Copper-deficient patients showed a significantly higher mortality rate (25.0% vs. 12.8%, P=0.044), longer hospital stays (57.8±47.0 vs. 45.2±36.6 days, P=0.041), and extended mechanical ventilation duration (26.9±23.3 vs. 18.8±15.7 days, P=0.012). Zinc deficiency was associated with higher C-reactive protein levels (16.2±9.5 vs. 11.5±8.8 mg/dL, P=0.001) and lower prealbumin levels (6.5±2.8 vs. 9.9±5.6 mg/dL, P<0.001). Severe vitamin D deficiency (<10 ng/mL) was not significantly associated with mortality or other clinical outcomes (mortality: <10 ng/mL vs. ≥10 ng/mL, 13% vs. 18%, P=0.583).
Conclusion: Micronutrient deficiencies are prevalent in SICU patients. Copper deficiency significantly correlated with poor clinical outcomes, and zinc deficiency showed a strong association with inflammatory markers. Early assessment and supplementation of micronutrients could be beneficial for critically ill surgical patients.
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Status of Nutritional Support after Emergency Gastrointestinal Surgery in Korea: Retrospective Multicenter Study
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Dae Sang Lee, Young Eun Park, Kyoung Hoon Lim, Ye Rim Chang, Suk-Kyung Hong, Minchang Kang, Jung-Min Bae, Ji Young Jang, Young Goun Jo, Ki Hoon Kim, Gil Jae Lee
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Surg Metab Nutr 2020;11(1):1-6. Published online June 30, 2020
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DOI: https://doi.org/10.18858/smn.2020.11.1.1
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- Purpose: Surgery itself causes an inflammatory response to an injury to the patient that leads to a stress metabolic state. Emergency gastrointestinal surgery may cause complications, such as ileus, bowel obstruction, ischemia, or anastomotic leakage, resulting in a delayed oral diet or poor overall nutrition. This study investigated the route of nutrition for patients who underwent emergency gastrointestinal surgery and when to provide nutrition after surgery.
Materials and Methods: Ten hospitals collected data retrospectively on the nutritional status and nutritional status of patients undergoing emergency gastrointestinal surgery for one year from January to December 2016. The clinical outcomes of the nutrient supply method, duration of supply, and type of surgery were performed. The dates from the time of surgery to the start of enteral nutrition, oral nutrition, and parenteral nutrition were calculated.
Results: Of 706 patients, there were 187 (26.5%) trauma patients, of which 63.5% were male. The onset of nutrition began after an average of 10.7 days postoperatively and after an average of 12.1 days of enteral nutrition. On average, it took 7.7 days to provide adequate calories, of which 63.3% had achieved adequate calories within a week. In the case of minimally invasive surgery, such as laparoscopic surgery, the adequate calorie supply time was five days, which was reached within one week.
Conclusion: In a retrospective multicenter analysis, the patients who underwent emergency gastrointestinal surgery had a late start of oral or enteral nutrition, and the ratio of adequate calorie supply within a week was low.
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Esophageal Obstruction Caused by the Solidification of Residue of an Enteral Feeding Formula
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Hancheol Jo, Ye Rim Chang, So Mi Kim, Dong Wook Kim, Ye Seob Jee
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J Clin Nutr 2018;10(1):25-30. Published online June 30, 2018
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DOI: https://doi.org/10.15747/jcn.2018.10.1.25
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The nutritional support of acutely ill patients is very important and early enteral nutrition is recommended. Feeding via the nasogastric route is used widely for its ease of access if the patient cannot maintain volitional food intake. If the position of the tip or side holes of the nasogastric tube (NGT) is above the gastroesophageal junction, there is the possibility of retention and solidification of the administered enteral feeding formula in the esophagus. Therefore, the tip of the NGT should be checked carefully; a chest radiograph to confirm its position can be considered, especially in patients with a higher risk of aspiration and gastroesophageal reflux. In addition, careful consideration of the risk factors that can trigger esophageal obstruction is required when feeding patients in the intensive care unit. This paper describes two unusual cases of esophageal obstruction caused by the solidification of residue of an enteral feeding formula.
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