PMC7342330_01
Preoperative point-of-care gastric ultrasound in the supine position 3 hours after discontinuation of the polyethylene glycol solution. The gastric antrum is observed next to the left lobe of the liver with a target sign, which suggests an empty stomach. DAo, descending aorta.
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Target pattern was confirmed in the supine position, which demonstrated an empty stomach (Figure 1).
Point-of-care gastric ultrasound in right lateral decubitus position. There is a small amount of clear liquid in the stomach. The cross-sectional area of the gastric antrum was 2.65 cm2.
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Only a small amount of the liquid was observed in right lateral decubitus position (RLD) and the cross-sectional area of the gastric antrum was 2.65 cm2, which is equal to 0.24-0.42 mL/kg (Figure 2).
Image obtained during esophagogastroduodenoscopy. There was minimal residual gastric fluid which could not be aspirated into the suction canister.
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EGD revealed that the stomach was empty with limited aspiration of any residual fluid (Figure 3).