40
Participants
Start Date
March 29, 2021
Primary Completion Date
March 7, 2022
Study Completion Date
March 7, 2022
Ultrasonic measurement of antral area
"Ultrasound exam is done before the induction of spinal anesthesia. Three consecutive measurements of the anteroposterior (AP) and cranio-caudal (CC) diameters are performed.~The cross-sectional area (CSA) of antrum is shown by the following formula: CSA = AP x CC x ㅠ/4.~Antral area will correspond to the average of the three measures."
Seoul National University Bundang Hospital, Seongnam-si
Seoul National University Bundang Hospital
OTHER