Transtracheal Ventilation
Intro
Used if airway obstruction persists despite usual airway control procedures.
A large bore catheter is inserted through the cricothyroid membrane.
O2 is delivered via bag-valve to catheter.
Inadequate to supply enough ventilation for significant time.
- can hook up to oxygen flowmeter intermittently, but risk of barotrauma,
surgical emphysema.
Method
Clean puncture site.
(Cricothyroid membrane between thyroid cartilage and cricoid cartilage)
Insert 14g IV canula.
Aspirate - when air back, in the right spot.
Advance cannula.
Connect to barrel (plunger removed) of a 2ml syringe.
Attach connecter piece meant for a size 7-8 ET.
2x7=14
- 2 ml syringe
- 7 ET
- 14g cannula
Ventilate with highest possible O2 concentration.
Suction secretions.
Prepare definitive surgical airway.