NCT07155330Completed
High-flow Nasal Cannula Oxygenation in Sedated Endoscopy for High-risk Obstructive Sleep Apnea Patients
Source: ClinicalTrials.gov · Last updated 25 Nov 2025
Brief summary (registry, in English)
Hypoxia is the most common adverse event during propofol sedation for gastrointestinal endoscopy. The STOP-BANG questionnaire is a widely used, simple assessment tool for screening obstructive sleep apnea (OSA) risk. A STOP-Bang score ≥5 indicates high-risk OSA patients who are more prone to hypoxia during sedated endoscopy. Our team's preliminary clinical research found that High-Flow Nasal Cannula (HFNC) may reduce hypoxemia risk, but there are limited dedicated studies focusing specifically on high-risk OSA patients, with controversial results. This study aims to investigate whether HFNC can reduce the incidence of hypoxia during sedated gastrointestinal endoscopy in high-risk obstructive sleep apnea patients.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 80 (actual)
- First submitted
- 26 Aug 2025
- Start date
- 5 Sept 2025
- Primary completion date
- 11 Nov 2025
- Lead sponsor
- Zhejiang University
- NCT number
- NCT07155330
What you commit to
- Study type: Interventional
- Participants enrolled: 80
- From 5 Sept 2025 to the primary completion date, 11 Nov 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Coagulation disorders or bleeding tendency (e.g., oral/nasal bleeding risk, mucosal injury, space-occupying obstructions).
- Active upper respiratory tract infection (oral, nasal, or pharyngeal), or fever (core temperature \>37.5°C).
- Chronic obstructive pulmonary disease or other acute/chronic pulmonary diseases requiring long-term or intermittent oxygen therapy, or preoperative SpO₂ ≤ 92% on room air.
- Severe organ dysfunction, including: Cardiac insufficiency (\<4 METs), Severe renal insufficiency (requiring dialysis), Diagnosed severe hepatic insufficiency, Increased intracranial pressure, ASA physical status ≥ IV.
- Known allergy to sedatives (e.g., propofol) or medical adhesives.
- Other conditions deemed unsuitable by the investigator.
Other
- Confirmed pregnancy or current breastfeeding.
- Multiple traumatic injuries.
- Current participation in another clinical trial.
Who the study is looking for
- Age ≥18 years.
- STOP-Bang score ≥5.
- Scheduled for sedated gastrointestinal endoscopy (gastroscopy, colonoscopy, or combined gastroscopy + colonoscopy).
- The estimated duration of the procedure does not exceed 45 minutes.
- Patients have signed the informed consent form.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| The First Affiliated Hospital Zhejiang University School of Medicine Coordinator of this site? Confirm its status | Hangzhou | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.