54,000 patients to reveal the safest oxygen level during surgery

NCT ID NCT07224243

First seen Nov 04, 2025 · Last updated Jun 20, 2026 · Updated 34 times

Summary

This study will look at 54,000 adults having surgery with general anesthesia to see how different oxygen levels affect their recovery. Patients will receive lower, intermediate, or higher oxygen during their operation. The goal is to find which oxygen level reduces the risk of organ injury or death within 30 days after surgery.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Nebraska Medical Center

    RECRUITING

    Omaha, Nebraska, 68105, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • University of Michigan Hospital

    NOT_YET_RECRUITING

    Ann Arbor, Michigan, 48109, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • University of Utah Huntsman Cancer Institute

    RECRUITING

    Salt Lake City, Utah, 84112, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37212, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

oxygen (different concentrations during anesthesia)

What this could lead to

If it succeeds, this could identify the best oxygen level to use during surgery to reduce complications like kidney or lung injury.

What could go wrong

This is an observational-style trial comparing existing practices, not testing a new drug. Results may show no clear difference or be influenced by other factors.

Conditions

The condition(s) this trial relates to.

acute kidney injury Lung Injury stroke disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.