Ventilator Image Gallery
You may have to click on the “i” icon on the right once inside of each Case Gallery to view the captions. See useful terminology at the bottom.
Patient Ventilator Interactions:
Early Trigger and Troubleshooting Options
Additional Case of Early Trigger Highlighting the Principles of Treatment of this Dyssynchrony
Early Trigger Leading to Double Triggering – Stacked Tidal Volumes and Target Variable
Consequences of Double Triggering in VC
False Trigger Due to Fluid Build up in the Ventilator Circuit
False Trigger from Patient-Ventilator Disconnection
False Trigger Confirmed by Esophageal Pressure Monitor
Discerning True versus False Trigger
Failed or Ineffective Trigger in a Patient with Neuromuscular Weakness
Failed or Ineffective Trigger in a Patient with COPD
Failed Trigger in Patient with Esophageal Pressure Monitor
Work Shifting
Work Shifting on Autoflow
Work Shifting on Autoflow: Comparison Against Pressure Support
Work Shifting on PRVC (same as APV)
Impact of Sedation on Work Shifting
Troubleshooting Increased Work of Breathing Seen with Modes Using an Adaptive Targeting Scheme
Tidal Volumes Higher Than Desired on APV Cannot Be Fixed Simply By Transitioning to VC
Flow Dyssynchrony/Work Shifting in VC Square Flow with Troubleshooting
Flow Dyssynchrony/Work Shifting in VC Descending Ramp Flow with Troubleshooting
Early cycle in VC
Early cycle in Pressure Support
Early Cycle in Pressure Support 2
Late Cycle in APV
Late and Early Cycle in APV
Late Cycle in Pressure Support
Important considerations around Adaptive Targeting Schemes (APV, Autoflow, PRVC, TargetVent, VC+…)
Illustration of Adaptive Targeting Scheme on APV
Important Alarm in APV – High Pressure Limit
Impact of iTime on Peak Pressures on APV
Impact of Leaks on Peak Pressure on APV
Useful Terminology:
APV: Adaptive Pressure Ventilation – pressure-limited mode where applied pressure is controlled by the ventilator to deliver target tidal volume set by provider. Also known as Autoflow, VC+, and PRVC.
Volume Support: Pressure support with an adaptive targeting scheme – the ventilator titrates the pressure given above PEEP with inspiration to deliver a desired target volume set by the user.