Skip to main content
OpenTrials
Not Yet Recruiting

NCT Number: NCT07188649

Postoperative SpO₂/FiO₂ in Obese and Non-Obese Patients: Role of STOP-BANG

The aim of this study is to evaluate the effect of the Reverse Trendelenburg position on oxygenation (SpO₂/FiO₂ ratio) in the early postoperative period in patients undergoing laparoscopic surgery. In our study, obesity is considered as a comparative subgroup in terms of variability of this effect; additionally, the STOP-BANG score, which measures the risk of obstructive sleep apnea syndrome, is examined as an auxiliary indicator.

Not Yet Recruiting

Trial opening soon.

Get Notified

Key information

Conditions

Oxygen Deficiency Hypoxia Pathological Conditions, Signs and Symptoms Signs and Symptoms Signs and Symptoms, Respiratory

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Istinye Üniversity

Istanbul, Merkez Mahallesi, 34250, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients over 18 years old
  • Patients who give consent to participate in the study
  • Patients who underwent elective laparoscopic cholecystectomy in Reverse Trendelenburg (30 degrees) position
  • ASA I-III patients
  • Patients with operation time < 3 hours

Exclusion criteria

  • Patients under 18 years old
  • Patients who did not give consent
  • Patients with asthma, COPD, or known respiratory disease
  • Patients whose procedure could not be completed or who had missing data
  • Patients with general anesthesia duration < 90 minutes will not be included

Treatment and study plan

oxygen deficiency

Behavioral

The aim of this study is to evaluate the effect of the Reverse Trendelenburg position on oxygenation (SpO₂/FiO₂ ratio) in the early postoperative period in patients undergoing laparoscopic surgery. In our study, obesity is considered as a comparative subgroup in terms of variability of this effect; additionally, the STOP-BANG score, which measures the risk of obstructive sleep apnea syndrome, is examined as an auxiliary indicator.

Primary outcomes

  1. oxygen level

    Time frame: 4 months

    SpO₂/FiO₂ ratio

Study contacts

Contact information is provided by the study sponsor or research team.

ilke dolgun

CONTACT

[email protected]

+905555485632

Sponsors and collaborators

Lead sponsor

Istinye University

Other

Registry information

Official study title

Early Postoperative SpO₂/FiO₂ Ratio in Obese and Non-Obese Patients Undergoing Laparoscopic Surgery in the Reverse Trendelenburg Position: Evaluation Together With the STOP-BANG Score

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Sep 23, 2025
Registry last updated
Sep 23, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.