Oxygen Reserve Index in Different Fresh Gas Flow

Sakarya University

Status: Completed

Conditions: Oxygen Reserve Index

Treatments: Device: Oxygen reserve index

Study type: Observational

Funder types: Other

Identifiers

NCT06649279

E16214662-050.01.04-8172-213

Details and patient eligibility

About

Our primary objective is to determine whether oxygen reserve index ORI can be a reliable and sensitive indicator of hypoxia and hyperoxia in low-flow anesthesia settings. Our secondary objective is to investigate the ORI changes during preoxygenation stage.

Enrollment: 64 patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• ASA I-III patients
• 18-75 years old
• underwent general anesthesia
• elective ear, nose and throat surgery, lasting longer than 60 minutes

Exclusion criteria

• who did not consent to participate,
• those with finger deformities
• unregulated diabetes mellitus, severe heart, kidney, or liver failure, sensitivities to local anesthetics or opioids, those who were morbidly obese (BMI >40 kg/m²), and breastfeeding women.

Trial design

64 participants in 2 patient groups

Group H

Description:

High Flow Anesthesia Group

Treatment:

Device: Oxygen reserve index

Group M

Description:

Minimal Flow Anesthesia Group

Treatment:

Device: Oxygen reserve index