Enteral feeding therapy has existed since ancient Egypt, but most of the major advances in enteral nutrient techniques and formulas have taken place during the 20th century through the development of sources and ingredients This review provides a historical account of enteral nutrition (EN), including the sources and formulation of macro-and micro-nutrients in the formula and how to manufacture them. The formulas were improved by the development of raw materials that are easier to digest and the next formula is expected to develop functionality using more raw materials, such as ω-3, amino acid, and more functional ingredients to heal the disease.
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Development of a standardized guideline and assessment tool is necessary. Therefore, the aim is to investigate the current state of enteral feeding management and to develop a basis for a standardized guideline.
From July 1, 2010 through June 30, 2011, this study was conducted retrospectively for 100 patients who had enteral feeding more than once only in the Intensive Care Unit, after General Surgery at Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. The analysis was based on the following factors; age, diagnosis, name of the operation, period of start and the end of enteral feeding, method of injection, flushing method, residual volumes of the stomach, location and the size of the tube, medication through tubing, and complications related to enteral feeding.
The mean age of the patients was 60.5, 65 men and 35 women. There were 30 malignant tumors of the hepatobiliary system and pancreas, 8 gastric and duodenal cancer, 4 colon and rectal cancer, 11 peritonitis, hemoperitoneum, and bowel obstruction, and 47 others. The average period of performing enteral feeding was 11.7 days and the locations of enteral feeding tube were stomach 56%, jejunum 39%, duodenum 3%, and undescribed 2%. The methods of enteral feeding were as follows; continuous feeding 19%, cyclic feeding 75%, intermittent and bolus feeding 3%, respectively. Only 1% of patients were on flushing and 16% on stomach residual. The most common complication of enteral feeding was clogging of the tube (5%).
Due to the lack of detailed charting related to enteral feeding, we were unable to analyze the statistics on the relevance of complication which was the primary endpoint. As a result, development of a standardized protocol on charting enteral feeding is suggested for optimal enteral nutritional support.