ArticleAnesthesiology and pain medicine2021
Gastric Residual Volume Assessment by Gastric Ultrasound in Fasting Obese Patients: A Comparative Study.
Article in Anesthesiology and pain medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07451015 ("A Randomized Controlled Trial on the Effect of Preoperative Carbohydrate Loading in Diabetic and Non-Diabetic Patients Undergoing Elective Abdominal Surgery"), which is not on this map. Cited by 6 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
"A Randomized Controlled Trial on the Effect of Preoperative Carbohydrate Loading in Diabetic and Non-Diabetic Patients Undergoing Elective Abdominal Surgery"
Who cites it
6 citing papers in PubMed, 15 citations in OpenAlex.
- The effect of pre-endoscopy maltodextrin beverage on gastric residual volume and patient's well-being: a randomised controlled trial.Scientific reports · 2023Trial
- Korean consensus-based recommendations for preanesthetic gastric ultrasound and anesthetic considerations for GLP-1 receptor agonist-based therapy: a consensus statement from Clinical Practice Guideline Committee of the Korean Society of Anesthesiologists.Korean journal of anesthesiology · 2026Review
- Formulation Engineering of Oral Semaglutide Tablets: Unleashing Gastric Intestinal Permeation with Sodium Caprate.Pharmaceutics · 2026Article
- Gastric point-of-care ultrasonography in patients undergoing radical gastrointestinal surgery before anesthetic induction: an observational cohort study.BMC anesthesiology · 2024Observational
- Assessment of residual gastric volume using point-of-care ultrasonography in adult patients who underwent elective surgery.The ultrasound journal · 2023Article
- Pre-anaesthetic sonographic assessment of gastric antrum in parturient scheduled for elective caesarean section - A prospective cross-sectional study.Indian journal of anaesthesia · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGastric ultrasound is an emerging tool for preoperative evaluation of gastric content and volume.
objectivesTo assess gastric residual volume in normal-weight and obese patients scheduled for elective surgery.
methodsThis prospective observational study was conducted on 100 patients assigned to two groups of 50 patients each. The obese group included patients with body mass index (BMI) of 30 - 40 and American Society of Anesthesiologists (ASA) grade II and those with BMI > 40 and ASA III without other comorbidities; the normal-weight group included patients with normal BMI and ASA I. Gastric volume was predicted in each group using sonographic measurement of antral cross-sectional area (CSA) in semi-sitting and right lateral positions (RLP); the two groups were compared to assess the risk of aspiration for each group preoperatively.
resultsDespite intergroup differences in antral CSA, the sonographically predicted gastric volume was < 1.5 mL/kg in both groups in both positions. Both groups were at a low risk for aspiration, and 98% of the patients showed grade 0 or 1 in antrum assessments, corresponding to an empty antrum and minimal fluid only in the RLP, respectively. Only 2% of the patients in both groups showed a distended antrum in both positions.
conclusionsDespite the differences in CSA between obese and normal-weight participants in both positions (obese > normal-weight), both groups showed a low predicted gastric residual volume < 1.5 mL/kg and were at low risk for aspiration, provided that fasting was initiated at least 8 hours before elective surgery.
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