Apnoeic oxygenation in morbid obesity: a randomised controlled trial comparing facemask and high-flow nasal oxygen delivery.

ABSTRACT:

Background

Obesity is a risk factor for airway-related incidents during anaesthesia. High-flow nasal oxygen has been advocated to improve safety in high-risk groups, but its effectiveness in the obese population is uncertain. This study compared the effect of high-flow nasal oxygen and low-flow facemask oxygen delivery on duration of apnoea in morbidly obese patients.

Methods

Morbidly obese patients undergoing bariatric surgery were randomly allocated to receive either high-flow nasal (70 L min^-1) or facemask (15 L min^-1) oxygen. After induction of anaesthesia, the patients were apnoeic for 18 min or until peripheral oxygen saturation decreased to 92%.

Results

Eighty patients were studied (41 High-Flow Nasal Oxygen, 39 Facemask). The median apnoe

SUBMITTER: Schutzer-Weissmann J 

PROVIDER: S-EPMC9875910 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature