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Respiratory Failure & Mechanical Ventilation

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As you know, patients with severe asthma and status asthmaticus develop dynamic hyperinflation syndrome and autoPEEP meaning that the inhaled air does not get exhaled completely and the pressure is built up inside the alveoli. This is caused by not enough expiratory time due to the high time constant of the airways. My question, what will happen next if the process continues?


How does dynamic hyperinflation progress if no change in the expiratory time made on the ventilator?

  • 0%Continues to build till the lung ruptures

  • 0%Stops on its own due to increased driving pressure

  • 0%I do not know!

You may want to see this video to help you understand the concept.





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