Use of a Nasal Cannula as a Preoxygenation Adjunct: A Randomized Crossover Study.

ABSTRACT:

Background

Preoxygenation prior to induction of general anesthesia is intended to increase the oxygen reserve in the lungs. This technique delays the onset of hypoxemia during the placement of the tracheal tube.

Objective

To observe the benefits of oxygen through nasal cannula when used as an adjunct during preoxygenation.

Methods

We enrolled 30 healthy volunteers and conducted a sequence of six preoxygenation tests. These included 3-minute tidal volume breathing and 8 vital capacity breaths, with and without oxygen flowing through the nasal cannula as an adjunct. Subjects were kept at a supine position with a face mask on their faces. Their baseline vitals were measured and end-tidal O₂ (ETO₂) was recorded at the end of each test. The comfort of

SUBMITTER: Joel M 

PROVIDER: S-EPMC11392575 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature