Annals of internal medicine
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Randomized Controlled Trial Clinical Trial
Pulmonary aspiration of gastric contents in patients receiving mechanical ventilation: the effect of body position.
To determine if the semirecumbent position (45-degree angle) decreases aspiration of gastric contents to the airways in intubated and mechanically ventilated patients. ⋯ We conclude that the supine position and length of time the patient is kept in this position are potential risk factors for aspiration of gastric contents. Elevating the head of the bed for patients who can tolerate the semirecumbent position may be a simple, no-cost prophylactic measure.