• Rieko Sumiyoshi.
• Department of Anesthesia, Fukuoka Children's Hospital and Medical Center for Infectious Diseases, Fukuoka 810-0063.
• Masui. 2013 Sep 1;62(9):1045-52.

AbstractPreoperative fasting is principally intended to minimize the risk of pulmonary aspiration of gastric contents and facilitate the safe and efficient conduct of anesthesia. Liberalization of fasting guidelines has been implemented in most countries. In general, clear fluids are allowed up to 2h before anesthesia, and light meals up to 6h. In infants, most recommendations now allow breast milk feeding up to 4h and other kinds of milk up to 6h. Recently, the concept of preoperative oral rehydration using a carbohydrate-rich beverage up to 2h has also gained support. Drinking carbohydrate-rich fluids before elective surgery may reduce dehydration, improve hemodynamic stability under anesthesia, facilitate intravenous access, maintain glucose homeostasis, reduce patient irritability, and improve child and parent satisfaction. These guidelines apply to healthy children only. Exclusion criteria included obesity, diabetes, gastroesophageal reflux, ileus, bowel obstruction and emergency care. In particular, trauma and other emergency cases are at higher risk for aspiration regardless of fasting interval and should be managed appropriately.

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