Supra-Glottic Airway Flashcards
Outline the pros and cons of an SGA as compared with an ETT or an OPA.
Pros:
Improved airway + ventilation management than OPA.
Lower aspiration risk than OPA.
Easier and quicker to insert than ETT.
Cons:
Lower level of aspiration protection than ETT.
What is the purpose of inserting an OG tube via SGA?
Decompress the stomach and allow drainage of gastric contents (reduced aspiration risk).
Which patients are likely to have higher airway pressures, and what do these patients require?
- Pregnancy
- Morbid obesity
- Decreased pulmonary compliance (pulm. fibrosis)
- Increased airway resistance (asthma)
Require careful monitoring to ensure effective ventilation and avoid passive regurgitation.
How many attempts at SGA insertion are allowed (for all skill-sets)?
3.
What are the 4 indications for insertion of an SGA?
- Unconscious patient w/o a gag reflex
- Ineffective ventilation with a BVM and basic airway Mx
- > 10mins assisted ventilation required
- Unable to intubate
What are the 5 contraindications to SGA insertion?
- Intact gag reflex
- Resistance to insertion
- Strong jaw tone or trismus
- Suspected epiglottitis
- Upper airway obstruction
What are the 4 precautions to SGA insertion?
- Inability to prepare the pt in the sniffing position
- Pts who require higher airway pressures
- Paediatric pts who many have enlarged tonsils
- Vomit in the airway
What is the listed side effect to SGA insertion?
Correct placement does not prevent passive regurgitation or gastric distension.
What size iGel and gastric tube are likely required for a pt weighing 30-60kg?
iGel size 3
gastric tube size 12
What size iGel and gastric tube are likely required for a pt weighing 50-90kg?
iGel size 4
gastric tube size 12
What size iGel and gastric tube are likely required for a pt weighing +90kg?
iGel size 5
gastric tube size 14