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Preoperative Performance Indicators, Preoxygenation and Oxygen Reserve Relationship

NCT07688941 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 120

Last updated 2026-07-07

No results posted yet for this study

Summary

The goal of this observational study is to evaluate the relationship between preoperative cardiopulmonary performance indicators and preoxygenation efficiency along with oxygen reserve depletion in patients scheduled for elective surgery under general anesthesia. The main questions it aims to answer are:

What is the relationship between Hand Grip Strength (HGS) and the time taken for end-tidal oxygen (EtO\_2) to reach 90% during preoxygenation? What is the relationship between the 6-Minute Walk Test (6MWT) distance and the Oxygen Reserve Index (ORI) depletion time during the apnea period?

Participants will be asked to perform the following tasks during their preoperative and intraoperative care:

Complete a 6-Minute Walk Test (6MWT) to determine preoperative functional capacity.

Perform a Hand Grip Strength (HGS) test using a calibrated hand dynamometer to measure muscle strength.

Undergo standardized preoxygenation with 100% oxygen via a tight-fitting face mask in the operating room while end-tidal oxygen (EtO\_2) and Oxygen Reserve Index (ORI) levels are continuously monitored.

Conditions

  • Sarcopenia
  • Handgrip Strength Test
  • Preoxygenation

Sponsors & Collaborators

  • Ankara City Hospital Bilkent

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-07-05
Primary Completion
2026-09-30
Completion
2026-12-03

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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 NCT07688941 on ClinicalTrials.gov