The purpose of this study is to determine the type of gastric content and quantify the volume of liquid gastric contents using ultrasonography in patients on GLP-1 agonists that have presented for elective surgery and to determine if risk factors are associated with a higher gastric volume in patients on GLP-1 receptor agonists.
Study Type
OBSERVATIONAL
Enrollment
132
Patient will be scanned first in the supine position and then in the right lateral decubitus position. The ultrasound probe will be placed in a sagittal plane in the epigastric region at the left subcostal margin and then will be moved past the midline in a fan like manner to the right subcostal region. Qualitative and quantitative assessments will be done.
The University of Texas Health Science Center at Houston
Houston, Texas, United States
Number of subjects that are at risk for aspiration
Risk for aspiration is indicated by the presence of solids, thick fluid, or clear fluids \>1.5ml/kg in the gastric antrum in the right lateral decubitus position
Time frame: end of ultrasound
Number of subjects that are at low risk for aspiration
Low risk for aspiration is indicated by a collapsed gastric antrum or clear fluids \<1.5ml/kg in the gastric antrum in the right lateral decubitus position.
Time frame: end of ultrasound
Age
Time frame: end of ultrasound
Number of participants that are male as indicated in the medical records
Time frame: end of ultrasound
Number of participants that are female as indicated in the medical records
Time frame: end of ultrasound
Body mass Index (BMI)
Body Mass Index (BMI) is calculated as the body mass in kilograms (kg) divided by the square of the body height in meters, and is expressed in units of kg/m2.
Time frame: end of ultrasound
Physical status as assessed by the American Society of Anesthesiologists (ASA) physical status classification system
The classification ranges from American Society of Anesthesiologists (ASA)1 (normal healthy person ) to ASA IV (A patient with severe systemic disease that is a constant threat to life)
Time frame: end of ultrasound
Number of participants with diabetes
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Time frame: end of ultrasound
Number of participants with reported nothing by mouth (NPO) status
Time frame: end of ultrasound
Pain severity as assessed by the numeric scale
This is a 11 point scale with scores ranging from 0 (no pain) to 10 (worst imaginable pain)
Time frame: end of ultrasound
Number of participants with Gastroesophageal reflux disease (GERD)
Time frame: end of ultrasound
Number of participants that have use opioids preoperatively
Time frame: end of ultrasound