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Effects of Different Inhaled Oxygen Concentrations on Lung Function in Older Patients After Laparoscopic Gastrointestinal Surgery Under General Anesthesia

NCT06359106 · Status: RECRUITING · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 1176

Last updated 2026-01-26

No results posted yet for this study

Summary

This was a multicenter, prospective, parallel-grouping, randomized controlled clinical study comparing low FiO2 (40%) and high FiO2 (80%) levels in older patients undergoing laparoscopic gastrointestinal surgery.

Conditions

  • Oxygenation Index

Interventions

DRUG

80% Oxygen

After successful anesthesia induction, the fraction of inspired oxygen (FiO2) will be adjusted to 80%, and the total gas flow rate will be set at 2L/minute.

DRUG

40% Oxygen

After successful anesthesia induction, the fraction of inspired oxygen (FiO2) will be adjusted to 40%, and the total gas flow rate will be set at 2L/minute.

Sponsors & Collaborators

  • China Medical University, China

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-07-02
Primary Completion
2026-06-30
Completion
2026-06-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06359106 on ClinicalTrials.gov