Critical Trial Investigates High-Flow Nasal Oxygen Impact on Sedated Gastrointestinal Endoscopy Safety in High-Risk Patients

Clinical teams and medical device regulatory professionals are closely watching developments in a pivotal multicenter randomized controlled trial led by Zhejiang University. The study is evaluating the impact of using High-Flow Nasal Cannula (HFNC) oxygenation versus regular nasal catheter oxygen during sedated gastrointestinal endoscopy in patients with critical conditions. These findings may shape safety protocols and device performance standards for high-risk procedures.

In this article:

What is High-Flow Nasal Cannula Oxygen?

High-Flow Nasal Cannula (HFNC) oxygen therapy delivers heated and humidified oxygen at high flow rates via a specialized nasal catheter. This method optimizes patient oxygenation levels, assists respiratory function, and minimizes the risk of hypoxemia during procedures. Incidents of hypoxia—a critical concern during prolonged endoscopic sedation—can lead to serious complications, especially in patients with co-existing conditions such as liver cirrhosis, colon polyps, or generalized gastrointestinal dysfunction.

How is the study conducted?

This clinical trial, sponsored by Zhejiang University, is recruiting patients across multiple centers to explore the comparative effectiveness of HFNC versus traditional nasal oxygen catheters. Eligible participants include those with liver cirrhosis, colon polyps, or gastrointestinal dysfunction, all of whom are undergoing sedated endoscopy procedures.

The trial protocol ensures a randomized design and follows stringent data collection practices to measure hypoxia incidence during endoscopy sessions. Investigators are aligning research methodology with established regulatory and ethical standards to ensure patient safety.

What are the findings?

While the study’s final findings are pending publication, preliminary indications suggest HFNC may reduce hypoxia rates and improve overall procedural safety for patients with critical conditions. This potential benefit has significant implications for medical teams performing high-risk gastrointestinal endoscopy, especially in intensive care or emergency settings.

Regulatory and clinical professionals will need to assess device-specific advantages while weighing deployment feasibility and consistency with international medical device guidelines.

FAQ

  1. Who is eligible to participate?
    Patients with liver cirrhosis, polyps of the colon, or gastrointestinal dysfunction undergoing sedated endoscopy may participate.
  2. What is the primary goal of the study?
    The trial aims to assess whether HFNC oxygen improves safety outcomes during endoscopy compared to regular nasal oxygen support.
  3. How does HFNC work differently from the regular nasal catheter?
    HFNC provides warmed, humidified oxygen at higher flow rates, ensuring better oxygen delivery and respiratory support.

Conclusion and implications

The study’s potential confirmation of HFNC oxygenation as a safer alternative may redefine endoscopy protocols for critical patients. Clinical and regulatory teams should monitor updates closely to integrate findings into device evaluations and practice guidelines. Enhanced device deployment in line with trial results could improve patient safety outcomes during complex procedures.

Disclaimer

This content is for medical device regulatory and clinical specialists. It does not substitute legal or clinical advice. Professionals should consult the full trial details and existing regulations before making decisions.

Official trial details

For full information about the announcement, see the link below.

https://clinicaltrials.gov/study/NCT07252102?term=medical+device