Intrinsic PEEP: a cause of inspiratory muscle ineffectivity


Intrinsic PEEP has been described as an inspiratory threshold load to the inspiratory muscles that could increase the work of breathing. We report a patient who presented ineffective inspiratory efforts to trigger the ventilator; when we applied PEEP in similar amounts of measured intrinsic PEEP, his inspiratory efforts became able to trigger the ventilator, suggesting that the inspiratory load was alleviated.


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Fernández, R., Benito, S., Blanch, L. et al. Intrinsic PEEP: a cause of inspiratory muscle ineffectivity. Intensive Care Med 15, 51–52 (1988).

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Key words

  • Mechanical ventilation
  • Intrinsic PEEP
  • Inspiratory muscles
  • Inspiratory load