A pilot study of ultrasound evaluation of gastric emptying in patients with end-stage renal failure: a comparison with healthy controls.
This prospective study was designed to evaluate gastric volume and content in patients with renal failure and healthy controls after an overnight fast, immediately after a light meal and at 6 h after the meal. Thirty subjects in each group were recruited. At each scanning session, gastric antral cross-sectional area was measured in the supine recumbent and right lateral decubitus positions, and a qualitative assessment of gastric contents was made using the Perlas three-point grading system. Six hours after the meal, the mean (SD) antral cross-sectional area in the supine position was 471 (195) mm2in patients with renal failure and 319 (106) mm2in healthy controls (p = 0.028), whereas in the right lateral position it was 756 (320) and 521 (180) mm2, respectively (p = 0.21). In terms of the qualitative assessments of gastric contents, all subjects had an empty stomach after an overnight fast. Five patients with renal failure and no controls had Perlas grade 2 images, indicating significant gastric contents, 6 h after a meal (p = 0.026). This study supports the use of bedside gastric ultrasound as a point-of-care test for patients with known risk factors for delayed gastric emptying.
Department of Anaesthesiology, University of Hong Kong Shenzhen Hospital, Hong Kong, China.
C
C
Chen
Department of Radiology, University of Hong Kong Shenzhen Hospital, Hong Kong, China.
L
L
Liu
Department of Nephrology, University of Hong Kong Shenzhen Hospital, Hong Kong, China.
C Y
CY
Wang
Department of Anaesthesiology, University of Hong Kong, Hong Kong, China.
S-W
SW
Choi
Department of Anaesthesiology, University of Hong Kong Shenzhen Hospital, Hong Kong, China.
V M
VM
Yuen
D000328:Adult; D000368:Aged; D019412:Anatomy, Cross-Sectional; D005260:Female; D005746:Gastric Emptying; D005766:Gastrointestinal Contents; D064368:Healthy Volunteers; D006801:Humans; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D056888:Patient Positioning; D010865:Pilot Projects; D019095:Point-of-Care Systems; D011446:Prospective Studies; D011706:Pyloric Antrum / Q000000981:diagnostic imaging; D013270:Stomach / Q000000981:diagnostic imaging*; D016683:Supine Position; D014463:Ultrasonography
antrum; end-stage renal failure; gastric emptying; gastric ultrasound