Invesive Ventilation | Oxygen Administration - MedSchool
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Invasive ventilation is performed following either intubation or tracheostomy.
 

Invesive Ventilation

 
 
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Overview

  • Invasive ventilation is performed following either intubation or tracheostomy.
    • Indications for Invasive Ventilation

    • Airway

    • Inability to maintain airway patency (upper airway obstruction) - soft tissue swelling, deformity, obesity, tongue displacement
    • Inability to protect the airway - sedation (e.g. for procedures), upper airway bleeding, excessive secretions
    • Breathing

    • Inability to ventilate - unconsciousness, sedation, neuromuscular disease, exhaustion
    • Inability to oxygenate - severe acute respiratory failure
    • Circulation

    • Cardiac arrest
    • Basic Summary of Common Ventilation Modes

    • Volume Control

    • Continuous mandatory ventilation (CMV) - the ventilator delivers a set number of breaths per minute at a set volume; the patient cannot trigger breaths
    • Volume Assist / Control - the ventilator delivers a set number of breaths per minute at a set volume; the patient can trigger assisted breaths at the same tidal volume
    • Pressure Control

    • Continuous Positive Airway Pressure (CPAP) - the ventilator delivers a set positive pressure (PEEP), with no additional inspiratory pressure
    • Pressure support (PS) - the ventilator supports the patient’s spontaneous breaths with a set positive inspiratory pressure, with or without positive end expiratory pressure (PEEP)
    • Pressure Assist / Control - the ventilator delivers a set number of breaths per minute at a set inspiratory pressure; the patient can trigger assisted breaths at the same pressure
    • Other

    • Syncronised Intermittent Mandatory Ventilation (SIMV) - the ventilator waits for the patient to breath, and supports each breath with set volume or pressure. If the patient does not breath within a set timing window, the ventilator delivers a mandatory supported breath
Last updated on March 25th, 2020
 
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