Invasive ventilation (IV) - also called invasive mechanical ventilation - uses gentle air pressure to mechanically assist or replace spontaneous breathing.
IV improves the effective exchange of gases - delivering oxygen and removing carbon dioxide - and makes breathing easier, while also relieving the respiratory muscles.
With invasive ventilation, air is delivered via an artificial airway such as an endotracheal tube, or a laryngeal mask airway (LMA) or a tracheostomy cannula/tube. These are usually fitted in a hospital under anaesthetic.
There are three types of respiratory device for invasive ventilation:
- volumetric (delivering by volume)
- barometric (delivering by pressure)
- combined (which deliver both by volume and pressure)
The respiratory specialist will recommend the right type of respirator according to the individual patient’s condition and the required settings which are tailored to their particular needs.