UMEM Educational Pearls

Category: Critical Care

Title: SIMV Ventilation

Keywords: Simv, critical care, ventilator (PubMed Search)

Posted: 9/15/2015 by Feras Khan, MD (Updated: 7/10/2020)
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SIMV (Synchronized intermittent mandatory ventilation)

  • A common mode of ventilation that all pratitioners should be familiar with
  • It provides a minimum number of fully assisted breaths synchronized with patient respiratory effort
  • Patient or time triggered
  • Flow limited
  • Volume cycled
  • Any additional breaths are unassisted and determined by patient effort
  • SIMV=AC when heavily sedated
  • The idea is exercise the patients lungs but this can lead to increased work of breathing and fatigue, and prolong extubation when used