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Study identifier: NCT07159022 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

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

Condition: High Flow Nasal Cannula · Body Roundness Index  ·  Sponsor: Shanghai Zhongshan Hospital

PhaseNA
Planned participants200
Who can joinAll sexes, 18 Years to 80 Years
Healthy volunteersYes

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Wenling Zhao  ·  +86-18321299017  ·  zhao.wenling@zs-hospital.sh.cn

Always discuss trial participation with your own doctor first.

Locations (1)

Zhongshan HospitlaShanghai, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT07159022