Trauma: Emergency Surgical Airway
Cricothyroidotomy (Cricothyrotomy)
Basics
- Used as a Temporary Measure Until a Formal Tracheostomy Can Be Performed in a Controlled Setting
- Cricothyroidotomy is Too Superior in the Neck to Allow Long-Term Airway Control – Risk for Tracheal Stenosis
- Only Contraindication: Young Age (Age < 10-12 Years)
- Membrane Too Delicate & Unable to Palpate Cricothyroid Membrane
- Needle Cricothyroidotomy (Transtracheal Needle Jet Ventilation) if Surgical Airway Required
Standard Technique
- Incise Skin (Vertically – Limits Bleeding)
- Use Hands to Stabilize the Trachea if Able
- Palpate & Incise the Cricothyroid Membrane (Horizontally) – Between Thyroid & Cricoid Cartilages
- Insert Trousseau Dilator or Finger into Trachea
- Consider Placing Bougie Along the Finger into the Trachea to Guide Tube
- Insert Tracheostomy Tube or Endotracheal Tube
- *There will Be Bleeding – Secure Airway Before Managing Bleeding
Rapid Four-Step Technique (RFST)
- Palpate Cricothyroid Membrane
- Stab Incision Through Skin & Membrane
- Hook & Retract Larynx Caudally
- Insert Tracheostomy Tube
Seldinger Technique
- Uses Needle & Guidewire
Complications
- Pneumothorax
- Bleeding
- Tracheal Stenosis
- Thyroid Cartilage Fracture
- Can Cause Vocal Cord Dysfunction/Paralysis After Decannulation
Needle Cricothyroidotomy
Basics
- Insufficient to Adequately Ventilate for More than a Few Minutes
- Designed to Provide Oxygenation Until a Formal Airway Can Be Obtained
- Following Stabilization, Endotracheal Intubation or Formal Tracheostomy are Necessary
Procedure
- Cannulate the Cricothyroid Membrane with a Needle/Catheter
- Gauge:
- Adults: 14-16
- Peds: 16-18
- Attached a Syringe Half-Filled with Saline
- Syringe Aspirated with Advancement & Position Confirmed by Air Bubbles
- Gauge:
- Needle Removed
- Cather Attached to Jet Ventilation Using a Luer-Lock/Y-Connector
Oxygenation/Ventilation
- Luer-Lock Occluded – Oxygenation Occurs
- Luer-Lock Open – Flow Escapes Allowing Some Ventilation
- Rate:
- 1 Second Occlusion/Oxygenation
- 3 Seconds Release/Ventilation