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Patient Ventilator Interactions: The Importance of Waveforms

Summary: Interpretation and management of patient ventilator asynchrony

Daniel Fein, MD
Assistant Professor, Pulmonary Medicine
Director of Inpatient Pulmonary Services
Director of the Montefiore Wakefield Medical and Surgical Intensive Care Unit
Albert Einstein College of Medicine/Montefiore Medical Center

Video Editor:
Editor: Kyle Swartz, DO

Key points

  • Ventilator asynchrony is common and associated with adverse outcomes
  • Asynchrony may occur during breath triggering, breath delivery or ventilator cycling.
  • To manage double triggering, consider increasing the inspiratory time instead of increasing patient sedation.


The protocols and recommendations described in these videos do not constitute medical advice or treatment nor should they be considered replacement of the patient / physician relationship or a physicians professional judgement. ATS and the creators of the videos disclaims all liability for treatment, diagnosis, decisions and actions taken or not taken in reliance of information taken from this website.