Key result
Intragastric pressure during mechanical ventilation in paralyzed patients shows no correlation with BMI.
Why the study?
The relevance of intragastric pressure in the setting of protective cricoid force during anaesthesia induction has been largely ignored.
Population
100 consecutive patients presenting for surgery requiring mechanical ventilation
Comparison
Respiratory swings in intragastric pressure during rapid sequence induction vs routine induction
Design
Observational study measuring intragastric pressure during mechanical ventilation in paralysed patients
Authors
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Provides reference pressures to inform cricoid force during RSI; extends physiological data but leaves open impact on regurgitation prevention.
Observational (n=100)
The study defines the range of intragastric pressures during mechanical ventilation, providing baseline physiological data to inform the level of cricoid force required to prevent regurgitation.
Haslam et al. (2003) conducted an observational in Patients presenting for surgery requiring mechanical ventilation (n=100). Mechanical ventilation following rapid sequence or routine induction of anaesthesia was evaluated on Intragastric pressure (Pga) at end-inspiration and end-expiration. Mean intragastric pressure during mechanical ventilation in paralyzed patients was 6.48 mmHg at end-inspiration and 3.23 mmHg at end-expiration, with no correlation to body mass index.
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