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NCT07159022

High Flow Nasal Cannula and Mask Oxygenation in Patients With Visceral Obesity Undergoing Sedated Gastroscopy

Recruiting now NA Last updated 1 December 2025
What this trial tests

NA trial testing High Flow Nasal Cannula Oxygenation in High Flow Nasal Cannula in 200 participants. Currently enrolling.

Timeline
31 August 2025
Primary endpoint
30 June 2026
31 July 2026

Quick facts

Lead sponsorShanghai Zhongshan Hospital
PhaseNA
StatusRecruiting now
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingnone
Primary purposeprevention
Enrollment200
Start date31 August 2025
Primary completion30 June 2026
Estimated completion31 July 2026
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Shanghai Zhongshan Hospital

Who can join

Adults 18 to 80, any sex, with High Flow Nasal Cannula or Body Roundness Index. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

During sedated gastroscopy, the insertion of the fiberscope and gastric distension required to perform the examination may induce respiratory depression, airway obstruction, and decreased chest wall compliance. Patients with obesity, especially visceral fat, have poor lung and chest wall compliance, lower lung capacity and functional residual capacity, and an unbalanced ventilation-to-perfusion ratio. Thus, obese patients are at a high risk of hypoxemia. Increasing evidence supports the use of High-flow nasal cannula (HFNC) oxygenation in obese patients during sedated gastrointestinal endoscopy. Obesity, especially visceral obesity, is an established risk factor associated with all-cause mortality. Body roundness index (BRI) is a newer anthropometric measure associated with identification of high-risk individuals. Owing to the limited evidence, we designed this unblinded randomized controlled trial to assess whether HFNC, compared to standard mask oxygenation, improves oxygenation at the end of the procedure (primary endpoint) in patients with visceral obesity.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other trials of High Flow Nasal Cannula Oxygenation

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Other Shanghai Zhongshan Hospital trials

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Data sources for this page

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