To explore the correlation between gastric ultrasound evaluation and gastroscopic direct vision evaluation of gastric contents, so as to more accurately use gastric ultrasound to evaluate the gastric contents of patients undergoing painless electronic gastroscopy in the outpatient department, so as to develop an individual painless diagnosis and treatment strategy to reduce the risk of lung aspiration.
Study Type
OBSERVATIONAL
Enrollment
600
The Second Affiliated Hospital, Chongqing Medical University
Chongqing, Chongqing Municipality, China
The cross-sectional area of the antrum (CSA)
The maximum anteroposterior diameter (recorded as D1) and maximum craniocaudal diameter (recorded as D2) between the gastric antrum serosal surfaces were measured perpendicularly to each other.CSA(cm2) = (π × D1 × D2) / 4
Time frame: Before the painless electronic gastroscopy
Predicted volume
Predicted volume calculated by CSA
Time frame: Before the painless electronic gastroscopy
Observed volume
All gastric fluid was thoroughly suctioned through an endoscope side port, measured to the nearest mL and recorded
Time frame: Before the painless electronic gastroscopy
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