使用超声波测定健康儿童的剩余胃体积
Tara Sander1, Kristine Urmson2, Leanne Langford3
1Department of Anesthesiology, Perioperative Medicine and Pain Management, Royal University Hospital, University of Saskatchewan, Room G525, 103 Hospital Drive, Saskatoon, SK, S7N 0W8, Canada.
概括
目前的儿科禁食指南可能过于严格. 胃超声波研究表明儿童的胃超声波.
科学领域:
- 儿科麻醉学 儿科麻醉学
- 胃肠病学 胃肠病学
- 医疗成像医学成像
背景情况:
- 儿童禁食指南建议在手术前1-2小时限制清洁液体,以防止肺吸血.
- 胃体积低于1.5mL·kg-1通常被认为是安全的,不会增加吸入的风险.
研究的目的:
- 在儿童摄入透明液体后,确定胃液体体积降低到1.5mL·kg-1以下所需的时间.
- 评估目前儿童禁食指南的自由化潜力.
主要方法:
- 一项前性观察性研究,涉及33名2至14岁的健康儿童.
- 胃超声波 (US) 用于测量右侧部 (RLD) 位置的腹腔横截面积 (CSA).
- 一个预测模型使用RLD CSA和年龄估计了胃体积,在摄入250毫升透明液体后的30,60,90和120分钟进行测量.
主要成果:
- 基线时每体重平均胃体积为0.51毫升·公斤-1.
- 30分钟后,平均胃体积为1.55毫升·公斤-1.
- 在60分钟后,平均胃体积下降至1.17毫升·公斤-1,90分钟后降至0.76毫升·公斤-1.
- 在120分钟后,平均胃体积为0.58mL·kg-1 .
结论:
- 儿童的胃液体体积在摄入后60分钟内始终低于1.5mL·kg-1的值.
- 这些发现表明,目前针对透明液体的儿科禁食指南可能会被自由化.
- 进一步的研究可以根据儿科患者的胃排空来改进最佳的禁食持续时间.
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