A simple switch in oxygen delivery may prevent dangerous drops in oxygen during routine procedures

NCT ID NCT06139081

Completed Disease control Sponsor: Nanjing First Hospital, Nanjing Medical University Source: ClinicalTrials.gov ↗

First seen Jul 27, 2026 · Last updated Jul 28, 2026 · Updated 1 time

Summary

This trial tests whether changing how oxygen is delivered during painless gastroscopy can reduce the risk of hypoxemia (low blood oxygen). Patients at high risk for hypoxia—such as those with heart or lung disease, older age, obesity, or sleep apnea—will receive oxygen through the mouth instead of the nose after the endoscope is inserted. The goal is to see if this simple adjustment lowers the rate of oxygen drops during the procedure.

What this could mean

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

Active substance: oxygen delivery through the mouth via nasal catheter
What this could lead to: If effective, this simple change in oxygen delivery could help prevent dangerous drops in oxygen levels during routine procedures.
What could go wrong: This is a single-center trial, and the benefit may not apply to all patients or settings. The intervention is a minor procedural change, so the impact may be modest.

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Conditions

The condition(s) this trial relates to.

Hypoxia

As listed by the trial registrant

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

HYPOXEMIA

Contacts and locations

Locations

Nanjing First Hospital

Nanjing, Jiangsu, 210006, China

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Other studies related to the condition(s) this trial covers.