Ultrasound vs Chest X-ray for NG Tube Placement in ICU

NCT07376083 — Not yet recruiting, 170 participants, Tepecik Training and Research Hospital

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Comparison of the Diagnostic Accuracy of Bedside Gastric Ultrasonography and Chest Radiography for Verification of Nasogastric Feeding Tube Placement in Intensive Care Unit Patients: A Prospective Observational Study

Registry	NCT07376083
Status	Not yet recruiting
Study type	Observational
Enrollment	170 (Estimated)
Sponsor	Tepecik Training and Research Hospital (Other)
Conditions	Intensive Care (ICU)
Dates	start 2026-01-01 (estimated), primary completion 2026-07-01 (estimated), completion 2026-07-01 (estimated), first posted 2026-01-29, last updated 2026-01-29

-Summary

his study evaluates the diagnostic accuracy of bedside gastric ultrasonography for confirmation of nasogastric tube placement in intensive care unit patients, using chest radiography as the reference standard. Sensitivity and specificity of bedside ultrasonography will be calculated to assess its performance in this clinical setting.

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+Outcome measures

Primary outcomes

Diagnostic accuracy of bedside gastric ultrasonography for confirmation of nasogastric tube placement [Immediately after nasogastric tube placement]: Diagnostic accuracy of bedside gastric ultrasonography will be assessed by calculating sensitivity and specificity using chest radiography as the reference standard.

Secondary outcomes

Agreement between bedside gastric ultrasonography and chest radiography [Immediately after nasogastric tube placement]: The level of agreement between bedside gastric ultrasonography and chest radiography findings will be evaluated.
Time to confirmation of nasogastric tube placement [From tube insertion to confirmation]: Time required to confirm correct nasogastric tube placement using bedside gastric ultrasonography and chest radiography.

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

Age ≥ 18 years

Clinical indication for nasogastric tube placement

Written informed consent obtained from the patient or a legally authorized representative

Exclusion Criteria:

* Refusal to participate in the study

Age < 18 years

Pregnancy

Contraindications to nasogastric tube placement, including:

Facial trauma

Basilar skull fracture

Esophageal obstruction

Recent upper gastrointestinal surgery

Presence of wounds, burns, or surgical dressings in the epigastric region that preclude adequate ultrasonographic evaluation