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- Title
Efficacy of Preoxygenation with Standard Tidal Volume Breathing Technique Using Long Breathing Tube: Comparing 100% Oxygen Flow of 5 with 10 L/Minute.
- Authors
Mohtar Rasali, Emilia Binti; Choy Yin Choy
- Abstract
Objectives: The time taken to reach FeO2 of 90% was compared between two groups of patients preoxygenated with oxygen 100% with standard tidal volume breathing (TVB) techniques, for five minutes with 5 L/min or with 10 L/min FGF oxygen using long breathing tubes in a circle absorber circuit. Design: This was a prospective randomized single-blind study, involving 66, ASA I or II patients, undergoing general anaesthesia for various surgical procedures. Materials and Methods: Two randomly selected groups of patients were preoxygenated with 100% oxygen using long breathing circuits, with standard tidal volume breathing (TVB) techniques, for five minutes: Group 1 with 5 L/min fresh gas flow (FGF) while Group 2 with 10 L/min FGF. Fractional concentration of oxygen in the expired gas (FeO2) at room air (baseline) and at 0.5 minutes interval during preoxygenation were recorded. Results: Preoxygenation with 10 L/min FGF oxygen required 2.8+/- 0.5 minutes to reach a target FeO2 of 90% compared to 5 L/min FGF oxygen which required 4.6+/- 0.72 minutes to reach a similar target. Conclusion: The efficacy of preoxygenation with TVB technique using long breathing tubing was better with FGF oxygen 10 L/min as compared to FGF oxygen 5 L/min.
- Publication
International Medical Journal, 2012, Vol 19, Issue 1, p47
- ISSN
1341-2051
- Publication type
Journal Article