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

NCT07188649 · tracked via the Priya Life Science Turkey tracker

Sponsor

Istinye University

Phase

Observational

Started

2025-09-25

Last updated

2025-09-23

Condition(s) studied

Oxygen Deficiency

Investigational drug(s) / intervention(s)

oxygen deficiency

oxygen deficiency: 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.

Study summary

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.

Eligibility

Sex

ALL

Min age

18 Years

Max age

—

Healthy volunteers

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

Primary outcome measure(s)

oxygen level — 4 months
SpO₂/FiO₂ ratio

Trial sites (1)

Facility	City	Region	Status
Istinye Üniversity	Istanbul	Merkez Mahallesi

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07188649 on ClinicalTrials.gov ↗ ← All trials in Turkey