Positioning and Ultrasound Examination of the Gastric Antrum

Effect of Positioning on Ultrasound Examination of the Gastric Antrum

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03205774

Enrollment

Registered

2017-07-02

Start date

2017-07-03

Completion date

2018-01-20

Last updated

2018-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastric Ultrasound

Brief summary

The aim of this prospective study was to assess the effect of patient positioning on the ultrasound assessment of gastric contents.

Interventions

BEHAVIORAL6 hours fasting and free oral intake of water

Ultrasound examination of the gastric antrum are performed in volunteers after prolonged fasting and 10 min after oral intake of water. Volunteer should be lying on his/her back, right lateral decubitus position and left lateral decubitus position with randomization of the order.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

DIAGNOSTIC

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* ASA 1 and 2 volunteers

Exclusion criteria

* Diabetes mellitus * previous gastrointestinal surgery * Medication affecting gastric motility * digestive diseases, gastroparesis * Pregnancy

Design outcomes

Primary

Measure	Time frame	Description
Change in ultrasound measurement of the antral cross sectional area according to the position	through study completion, an average of 20 min	Ultrasound measurement of antral cross-sectional area
Change in qualitative ultrasound assessment of gastric contents according to the position	through study completion, an average of 20 min	qualitative ultrasound assessment of gastric contents

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026