Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia.
Asian J Anesthesiol. 2023 Sep 1;61(3). doi: 10.6859/aja.202309_61(3).0002. Epub 2023 Oct 13.
Preoperative fasting is a common practice to decrease perioperative aspiration risk. The American Society of Anesthesiologists (ASA) recommends preoperative fasting of 8 hours after a full meal. ASA preoperative fasting recommendation is based on the Western diet. A typical Western diet has a higher fat content than Asian standard solid meals. This study aimed to analyze intragastric volume with ultrasound after 6-hour and 8-hour fasting after an Asian traditional solid meal.
This cohort study recruited 37 subjects from January to February 2019. Subjects were patients scheduled for elective non-digestive surgery and planned for preoperative fasting of 8 hours. Before preoperative fasting, all subjects consumed standard Asian meals. We performed an ultrasound of the gastric antrum during the relaxation phase after two contractions. After a good image was acquired, the cross-sectional area and gastric volume (GV) were calculated. GV was grouped based on a border value of 1.5 mL/kg.
GV 6 hours after solid intake was 30.93 (1.60-205.25) mL, and GV 8 hours after solid intake was 16.34 (0.73-62.49) mL (P = 0.002). After 6 hours, 5.4% of the subjects had a GV above 1.5 mL/ kg, while after fasting for 8 hours, the GV of all subjects was below 1.5 mL/kg. Age was correlated moderately and negatively with the GV of 6 hours and 8 hours fasting (P < 0.001, correlation coefficient = -0.610, and P < 0.001, correlation coefficient = -0.580).
Intragastric volume 8 hours after a standard Asian meal intake was lower than 6 hours after a traditional Asian meal.
术前禁食是减少围手术期误吸风险的常见做法。美国麻醉医师学会（ASA）建议全餐后禁食 8 小时。ASA 的术前禁食推荐是基于西方饮食。西方饮食的脂肪含量通常高于亚洲标准固体餐。本研究旨在分析在摄入亚洲传统固体餐后 6 小时和 8 小时禁食时的胃内容量。
这是一项队列研究，于 2019 年 1 月至 2 月期间招募了 37 名患者。所有患者均计划进行择期非消化系统手术，并进行 8 小时的术前禁食。在术前禁食前，所有患者均食用标准的亚洲餐。我们在两次收缩后的放松阶段对胃窦进行超声检查。获得良好的图像后，计算胃窦的横截面积和胃容量（GV）。根据 1.5mL/kg 的边界值对 GV 进行分组。
固体摄入后 6 小时的 GV 为 30.93（1.60-205.25）mL，固体摄入后 8 小时的 GV 为 16.34（0.73-62.49）mL（P=0.002）。6 小时后，有 5.4%的患者 GV 大于 1.5mL/kg，而禁食 8 小时后，所有患者的 GV 均小于 1.5mL/kg。年龄与 6 小时和 8 小时禁食时的 GV 呈中度负相关（P<0.001，相关系数=-0.610 和 P<0.001，相关系数=-0.580）。
摄入标准亚洲餐后 8 小时的胃内容量低于传统亚洲餐后 6 小时。
