Respiratory Simulation Specialists



Patient-Ventilator Synchrony in the Volume Assist-Control Mode

In the ICU,  patient-ventilator interaction is a key concern. It is evident in both clinical practice and research that the interaction between a patient and a ventilator is frequently substandard and patient-ventilator dysynchrony is too common.

Causes for patient-ventilator dysynchrony include both patient factors and ventilator factors. Although dysynchrony can be detected upon physical assessment, careful analysis of ventilator waveforms allows for more precise clinical care. It is the responsibility of the clinician to be able to recognize and fix this “tug of war” between the patient and ventilator that is associated with adverse effects including increased WOB, discomfort, increased need for sedation, prolonged ICU stay, and possibly higher mortality rates.

Authors: Eric Kriner and Amanda Dexter

Intended Learners: Critical Care Clinicians

This package of four RespiSim® clinical simulations gives learners hands-on experience recognizing and identifying dysynchrony and its deleterious effects, recommending changes to ventilator parameters, and implementing lung protective strategies. Learners gain a breadth of experience with different patient and dysynchrony types.

Package of Four Simulations:

  • Trigger dysynchrony (COPD)
  • Inspiratory dysynchrony (trauma)
  • Expiratory dysynchrony (asthma)
  • Cycle dysynchrony (probable pneumonia)

Scenario Concept Presentation (1 hr, 24 min)

  • Defining patient-ventilator dysynchrony
  • The occurrence of patient-ventilator dysynchrony
  • Recognizing and correcting patient-ventilator dysynchrony
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