Comparison of the Time to Reach End-Tidal Oxygen Value of 90 and Oxygen Reserve Index Decline Times During Preoxygenation in Sarcopenic and Non-Sarcopenic Patients

Comparison of the Time to Reach End-Tidal Oxygen Value of 90 and Oxygen Reserve Index Decline Times During Preoxygenation in Sarcopenic and Non-Sarcopenic Patients Using the 6-Minute Walk Test

Status

Not yet recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06847672

Enrollment

Registered

2025-02-26

Start date

2025-03-01

Completion date

2025-08-31

Last updated

2025-02-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oxygen Reserve Index, Preoxygenation, Sarcopenia

Brief summary

The purpose of this study is to compare the time required to reach an end-tidal oxygen (EtO2) value of 90% and the time until the Oxygen Reserve Index (ORI) drops below 0.55 during preoxygenation in sarcopenic and non-sarcopenic patients. The study aims to investigate the impact of sarcopenia on the oxygenation process.

Interventions

DIAGNOSTIC_TESTpreoxygenation

The time required to reach EtO2 90% and the time until ORI drops below 0.55

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patients who agree to participate in the study. * Patients scheduled for major abdominal oncologic surgery.

Exclusion criteria

* Patients with severe cardiopulmonary disease. * Patients with walking disabilities.

Design outcomes

Primary

Measure	Time frame
Time required to reach EtO2 90%	preoperatively
Time until ORI drops below 0.55	preoperatively

Countries

Turkey (Türkiye)

Contacts

Primary ContactBetül Güven Aytaç, Assoc.prof.

drbguven@hotmail.com+905073578351

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026