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Published on: November 11, 2020
Mathematically optimized mechanical power as a potential approach for tailored lung protection
1Unidad de Cuidados Intensivos, Hospital Clínico Universidad de Chile, Santiago, Chile.
Background:
During mechanical ventilation, obtaining mechanical power might allow us to tailor energy applied to the respiratory system, however its use is not widespread and adjustment can be cumbersome. A mathematical optimization could solve that process and guide our ventilation with more precision and personalization according to individual patient characteristics.
Results:
After converting mechanical power to a function of tidal volume during a theoretical steady state, then optimizing by solving the lowest possible value for a given set of constants, in terms of tidal volume, we can achieve the theoretically safest approximation to the mechanical ventilation to any given patient, in a personalized way, that can be readjusted as required at the bedside with variables readily obtained with modern ventilators. This solution is designed to be used in volume-controlled ventilation for patients with no effort.
Conclusions:
Mathematical optimization can find the balance of tidal volume and respiratory rate that minimizes mechanical power applied to any individual patient in certain conditions.
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