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Preoperative Gastric Ultrasound and Left Ventricular Function in Coronary Artery Bypass Surgery
Sponsor: Adiyaman University
Summary
This study aims to investigate whether reduced heart function is associated with differences in stomach contents before elective coronary artery bypass graft (CABG) surgery. Patients undergoing elective cardiac surgery will be divided into two groups based on their left ventricular ejection fraction (LVEF), a measure of how well the heart pumps blood: patients with an LVEF below 40% and patients with an LVEF of 40% or higher. Before surgery, the researchers will use ultrasound to examine the stomach. They will assess the presence and amount of stomach contents using the Perlas grading system and ultrasound measurements of the gastric antrum. The main objective is to compare gastric ultrasound findings between the two groups. The researchers will also evaluate estimated gastric volume and the frequency of stomach findings associated with a higher risk of aspiration during anesthesia.
Official title: Evaluation of the Relationship Between Preoperative Gastric Ultrasonography Findings and Left Ventricular Systolic Function in Patients Undergoing Elective Coronary Artery Bypass Graft Surgery
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
50
Start Date
2026-11-01
Completion Date
2027-03-01
Last Updated
2026-10-30
Healthy Volunteers
No
Interventions
Gastric Ultrasonography
Preoperative gastric ultrasonography will be performed before anesthesia induction by an experienced anesthesiologist blinded to LVEF values. Using a 2-5 MHz convex probe, the gastric antrum will be examined in supine and right lateral decubitus positions. Perlas grade, antral cross-sectional area, and gastric contents will be recorded. Gastric volume will be estimated only in patients with clear fluid. A high-risk stomach will be defined as gastric volume \>1.5 mL/kg or the presence of solid or thick particulate contents. The same protocol will be applied to both LVEF groups.
Locations (1)
Adıyaman Training and Research Hospital
Adıyaman, Turkey (Türkiye)