Ultrasound Assessment of Gastric Emptying in Mechanically Ventilated ICU Patients

Evaluation of Gastric Emptying and Residual Volume Using Ultrasound in Mechanically Ventilated Intensive Care Patients Receiving Different Enteral Nutrition Solutions

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07352202

Acronym

GASTRIC-USG

Enrollment

Registered

2026-01-20

Start date

2025-10-22

Completion date

2026-09-13

Last updated

2026-09-15

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

Conditions

Gastric Ultrasound

Keywords

gastric ultrasound, ıntensive care unit, gastric residual volume

Brief summary

This prospective observational study aims to evaluate dynamic changes in gastric volume and gastric emptying time using bedside gastric ultrasound in mechanically ventilated intensive care unit patients. The study compares gastric emptying patterns among patients receiving different types of enteral nutrition solutions as part of routine clinical care.

Detailed description

This prospective observational study is designed to evaluate gastric emptying and changes in gastric volume using bedside gastric ultrasound in mechanically ventilated intensive care unit patients. Ultrasound examinations will be performed at predefined time points to assess gastric residual volume and gastric emptying patterns. Patients receiving different types of enteral nutrition solutions as part of routine clinical care will be evaluated and compared. Gastric measurements will be obtained using standardized ultrasound techniques by trained clinicians. The study aims to identify differences in gastric emptying dynamics associated with various enteral nutrition formulations and to assess the feasibility of bedside ultrasound as a non-invasive tool for monitoring gastric function in critically ill patients.

Interventions

OTHEREnteral Nutrition (Routine Clinical Care)

Enteral nutrition administered according to routine clinical practice without protocol-driven assignment or modification.

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Age 18 years or older * Mechanically ventilated patients admitted to the intensive care unit * Presence of a nasogastric tube * Hemodynamically stable patients receiving enteral nutrition as part of routine clinical care

Exclusion criteria

* Recent abdominal surgery within the first 24 hours * Major abdominal trauma or burns * Significant ascites * Inadequate ultrasound window (e.g., severe meteorism) * Hemodynamic instability * Contraindication to enteral nutrition

Design outcomes

Primary

Measure	Time frame	Description
Change in Gastric Volume Estimated by Ultrasound	Baseline and up to 60 minutes after enteral feeding	Dynamic changes in gastric volume estimated using ultrasound-derived antral cross-sectional area measurements at predefined time points before and after enteral feeding.

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATORBerfin Gizem G Özelsel, MD

Sehit Prof. Dr. Ilhan Varank Sancaktepe Training and Research Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 16, 2026