What are the differences between controlled and patient-initiated ventilators for the treatment of respiratory failure?

Updated: Apr 07, 2020
  • Author: Ata Murat Kaynar, MD; Chief Editor: Michael R Pinsky, MD, CM, Dr(HC), FCCP, FAPS, MCCM  more...
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Answer

Ventilatory assistance can be controlled or patient-initiated. In controlled ventilation, the ventilator delivers assistance independent of the patient’s own spontaneous inspiratory efforts. In contrast, during patient-initiated ventilation, the ventilator delivers assistance in response to the patient’s own inspiratory efforts. The patient’s inspiratory efforts can be sensed either by pressure or flow-triggering mechanisms.


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