PRELIMINARY ASSESSMENT OF ASPIRATION RISK IN PARTURIENTS RECEIVING PREOPERATIVE CARBOHYDRATE LOADING BEFORE ELECTIVE CESAREAN SECTION

Xuân Huỳnh Đặng, Quốc Kính Nguyễn , Tuấn Đạt Đỗ

Main Article Content

Abstract

Objective: To evaluate the risk of aspiration in parturients who consumed carbohydrate solution before elective cesarean section. Methods: A randomized controlled clinical intervention study was conducted from December 2024 to May 2025 on 31 parturients undergoing elective cesarean section, divided into two groups: the control group (FAST) consisting of 16 parturients who fasted from midnight before surgery, and the intervention group (CHO) consisting of 15 parturients who consumed 600ml of carbohydrate solution the evening before surgery and 300ml of carbohydrate solution on the morning of surgery up to 2 hours before surgery. Gastric antral right lateral decubitus cross-sectional area, grading and volume of residual gastric fluid were assessed, and cases of gastroesophageal reflux and pulmonary aspiration were recorded. Results: Ultrasound-assessed gastric volume in the CHO intervention group showed 13,3% grade 0; 60% grade 1; and 26,7% grade 2, while the FAST control group showed 18,8% grade 0; 56,2% grade 1; and 25% grade 2 (p = 0,919). The gastric antral right lateral decubitus cross-sectional area in the FAST group was 4,09 ± 1,52 cm², and in the CHO group was 3,37 ± 1,16 cm², with p = 0,29. Residual gastric volume per kg calculated using Perlas' and Roukhomovsky's formulas were 0,78 ± 0,41 ml/kg and 0,83 ± 0,43 ml/kg in the FAST group, and 0,6 ± 0,27 ml/kg and 0,51 ± 0,34 ml/kg in the CHO group, respectively. No cases of reflux or pulmonary aspiration were recorded. Conclusion: Preoperative carbohydrate solution consumption before elective cesarean section is safe and does not increase the risk of aspiration during surgical anesthesia.

Article Details

References

1. Wilson RD, Caughey AB, Wood SL, et al. Guidelines for Antenatal and Preoperative care in Cesarean Delivery: Enhanced Recovery After Surgery Society Recommendations (Part 1). Am J Obstet Gynecol. 2018;219(6):523.e1-523.e15. doi:10.1016/j.ajog.2018.09.015
2. Smith I, Kranke P, Murat I, et al. Perioperative fasting in adults and children: guidelines from the European Society of Anaesthesiology. Eur J Anaesthesiol. 2011;28(8):556-569. doi:10.1097/EJA.0b013e3283495ba1
3. Giang HTN, Duy DTT, Hieu LTM, et al. Factors associated with the very high caesarean section rate in urban areas of Vietnam. PLOS ONE. 2022;17(8):e0273847. doi:10.1371/journal.pone.0273847
4. Perlas A, Van de Putte P, Van Houwe P, Chan VWS. I-AIM framework for point-of-care gastric ultrasound. Br J Anaesth. 2016;116(1):7-11. doi:10.1093/bja/aev113
5. Roukhomovsky M, Zieleskiewicz L, Diaz A, et al. Ultrasound examination of the antrum to predict gastric content volume in the third trimester of pregnancy as assessed by MRI: A prospective cohort study. Eur J Anaesthesiol EJA. 2018;35(5):379. doi:10.1097/EJA.0000000000000749
6. Gal O, Rotshtein M, Feldman D, Mari A, Hallak M, Kopelman Y. Estimation of Gastric Volume Before Anesthesia in Term-Pregnant Women Undergoing Elective Cesarean Section, Compared With Non-pregnant or First-Trimester Women Undergoing Minor Gynecological Surgical Procedures. Clin Med Insights Womens Health. 2019;12:1179562X19828372. doi:10.1177/1179562X19828372
7. Arzola C, Perlas A, Siddiqui NT, Downey K, Ye XY, Carvalho JCA. Gastric ultrasound in the third trimester of pregnancy: a randomised controlled trial to develop a predictive model of volume assessment. Anaesthesia. 2018;73(3):295-303. doi:10.1111/anae.14131
8. Popivanov P, Irwin R, Walsh M, Leonard M, Tan T. Gastric emptying of carbohydrate drinks in term parturients before elective caesarean delivery: an observational study. Int J Obstet Anesth. 2020;41:29-34. doi:10.1016/j.ijoa.2019.07.010
9. Shi H, Zheng C, Zhu B. Effects of Preoperative Oral Carbohydrate on Perioperative Maternal Outcomes Undergoing Cesarean Section: A Systematic Review and Meta-Analysis. Anesthesiol Res Pract. 2024;2024:4660422. doi:10.1155/2024/4660422