Anesthesiology
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Anesthesiology
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Mechanical power (MP) is a summary variable quantifying the risk of ventilator-induced lung injury (VILI). The original MP equation was developed using square flow ventilation. However, most children are ventilated using decelerating flow. It is unclear whether MP differs according to mode of flow delivery. We compared MP in children with acute respiratory distress syndrome (ARDS) who received both square and decelerating flow ventilation. ⋯ MP was marginally lower in square flow than in decelerating flow, although the clinical significance of this is unclear. Upward of 30% of MP may go towards overcoming resistance, regardless of age. This is nearly three-fold greater resistance compared to what has been reported in adults.