Related Experiment Video
Updated: Jan 7, 2026
Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care
Published on: September 22, 2023
Risk factors for a full stomach assessed by gastric ultrasound in patients undergoing elective caesarean section: a
Yue Wei1, Kunpeng Liu1, Xi Lu1
1Department of Anesthesiology, Peking University International Hospital, Beijing, China.
Objectives:
To determine the prevalence and risk factors for full stomachs as assessed by gastric ultrasound in patients scheduled for elective caesarean section (CS).
Design:
Case-control study.
Setting:
One tertiary general hospital in Beijing.
Participants:
A total of 140 non-labouring singleton pregnant women scheduled for elective CS between March 2024 and November 2024 at Peking University International Hospital were enrolled in this study. The inclusion criteria were as follows: ≥18 years of age, ≥37 weeks of gestational age, an American Society of Anesthesiologists physical status of II to III, and the ability to understand the rationale of the study assessments. The exclusion criteria included multiple pregnancy, obstetric urgency, an antenatal history of upper gastrointestinal surgery or upper gastrointestinal tract disease, the use of medications that may influence gastrointestinal motility and refusal to participate in the study.
Interventions:
Based on quantitative and qualitative ultrasound assessments of the gastric antrum, patients were divided into two groups: a full stomach group (defined by a Perlas A score of grade 2 or the presence of solid contents or a gastric volume (GV)/weight >1.5 mL/kg) and an empty stomach group (defined by a Perlas A score
Primary And Secondary Outcome Measures:
The prevalence and risk factors for full stomachs in patients scheduled for elective CS.
Results:
A total of 134 parturients were analysed. Overall, 48 parturients (35.8%) were identified as having a full stomach despite adherence to standard fasting rules for elective CS. According to multifactorial logistic regression analysis, gastro-esophageal reflux disease (GERD) during pregnancy (adjusted OR: 3.90; 95% CI 1.15 to 13.23; p=0.029) was identified as an independent risk factor for full stomachs in patients scheduled for elective CS.
Conclusions:
In this study, we found that GERD during pregnancy is an independent risk factor for full stomachs as assessed by gastric ultrasound in patients scheduled for elective CS. Our results suggest that if a parturient has GERD during pregnancy, it would be desirable to perform gastric ultrasound to evaluate gastric emptying status prior to anaesthesia.
Trial Registration:
Chinese Clinical Trials Registry at http://www.chictr.org.cn (ChiCTR2400082033).
More Related Videos
07:27Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection
Published on: February 7, 2025
08:22The Application of Point-of-Care Ultrasonography (POCUS) in the Management of Acute Respiratory Distress Syndrome (ARDS) in the Intensive Care Unit
Published on: December 12, 2025
Related Concept Videos
01:25Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease
01:16Gastric Emptying
01:25Assessment of the Abdomen I: Inspection and Auscultation
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection....
01:28Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
01:20Ultrasound I: Abdominal Ultrasonography
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
01:25Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...