超声检查非禁食状态下足月孕妇的胃容量：体重指数对其的影响——回顾性病例系列研究
Ultrasound your NPO: Effect of body mass index on gastric volume in term pregnant women - Retrospective case series.
作者信息
Riveros-Perez Efrain, Davoud Sherwin, Sanchez Maria Gabriela, Montesinos Hugo, Rocuts Alexander
机构信息
Department of Anesthesiology and Perioperative Medicine, Medical College of Georgia at Augusta University, 1120 15th Street, Augusta, GA, USA.
The Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH, USA.
出版信息
Ann Med Surg (Lond). 2019 Nov 6;48:95-98. doi: 10.1016/j.amsu.2019.10.029. eCollection 2019 Dec.
INTRODUCTION
A common belief has been that obese patients are prone to develop aspiration of gastric contents when general anesthesia is administered. We aimed to determine the correlation between antral cross-sectional area as a surrogate of gastric volume measured by gastric ultrasound, and body mass index (BMI) in term pregnant women scheduled for elective cesarean section.
METHODS
A cross-sectional observational study was conducted on forty-two term pregnant patients scheduled for cesarean section. A preoperative qualitative and quantitative ultrasound assessment of the antral area was performed on the day of surgery. Gastric volume as a function of BMI was evaluated.
RESULTS
A significant correlation was found between BMI and gastric antral area (p = 0.001), as well as with longitudinal diameter (p < 0.001). This correlation is independent of gravidity and parity.
CONCLUSION
BMI is an independent predictor of antral cross sectional area and gastric volume in term pregnant patients scheduled for cesarean section. Perioperative fasting guidelines in pregnancy should be adjusted in obese and morbidly obese pregnant women.
引言
人们普遍认为，肥胖患者在接受全身麻醉时容易发生胃内容物误吸。我们旨在确定在计划进行择期剖宫产的足月孕妇中，通过胃超声测量的胃窦横截面积作为胃容量替代指标与体重指数（BMI）之间的相关性。
方法
对42例计划行剖宫产的足月孕妇进行了横断面观察研究。在手术当天对胃窦区域进行术前定性和定量超声评估。评估了作为BMI函数的胃容量。
结果
发现BMI与胃窦面积（p = 0.001）以及与纵向直径（p < 0.001）之间存在显著相关性。这种相关性与妊娠次数和产次无关。
结论
BMI是计划行剖宫产的足月孕妇胃窦横截面积和胃容量的独立预测指标。肥胖和病态肥胖孕妇的围手术期禁食指南应进行调整。
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