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LMA vs High-flow Nasal Oxygen During ECT in Obese Patients
Sponsor: Eulji University Hospital
Summary
This study aims to compare two oxygenation strategies-laryngeal mask airway (LMA) ventilation and high-flow nasal cannula (HFNC)-during electroconvulsive therapy (ECT) in obese patients. Due to their physiological characteristics, obese patients are at increased risk of hypoxia during ECT under general anesthesia. Adult patients with a body mass index (BMI) ≥30 who are scheduled to undergo ECT will participate. Each participant will receive both oxygenation strategies in a fixed alternating order during four consecutive ECT sessions. The procedures will follow standard anesthesia protocols. During the ECT procedures and the 30-minute recovery period in the post-anesthesia care unit, we will monitor the occurrence of hypoxia (SpO₂ \<92%), ventilator parameters, vital signs, postoperative confusion within 24 hours, and any reports of dental discomfort. This information will help assess the safety and clinical utility of each oxygenation method for obese patients receiving ECT.
Official title: Comparison Between Laryngeal Mask and High-flow Nasal Oxygen Therapy in Obese Patients Undergoing Electroconvulsive Therapy
Key Details
Gender
All
Age Range
19 Years - Any
Study Type
INTERVENTIONAL
Enrollment
25
Start Date
2025-08-01
Completion Date
2026-07-31
Last Updated
2025-07-30
Healthy Volunteers
No
Interventions
Laryngeal Mask Airway
A supraglottic airway device (i-gel) used to deliver oxygen and assist ventilation during electroconvulsive therapy (ECT) in obese patients. The device is inserted after induction of general anesthesia and removed after spontaneous respiration is restored.
High-Flow Nasal Cannula
A heated and humidified oxygen delivery system that provides high flow oxygen through nasal prongs. In this study, it is used throughout the ECT procedure to maintain oxygenation in obese patients without the need for invasive airway insertion.