Advanced airway adjuncts: Difference between revisions

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*[[Intubation]]
==Advanced Airway Adjuncts==
*[[Surgical cricothyrotomy]]
[[File:PMC4530924 wjem-16-588-g002.png|thumb|Emergency intubator demonstrating preloaded [[bougie]] technique on a mannequin.]]
*[[Supraglottic airway]]
[[File:Masques laryngés- LMA Unique et I-gel.jpg|thumb|Two example [[LMA]] airways.]]
**[[Laryngeal Mask Airway (LMA)]]
[[File:Barrel-connector.png|thumb|[[Pediatric jet ventilation]] setup.]]
*[[Pediatric jet ventilation]]
{{Advanced Airway Adjuncts Chart}}
 
 
===Endotracheal tube introducer (ETI)/Gum Elastic Bougie===
*Higher first pass success when used with direct laryngscope vs. styletted ET tube regardless of whether difficult airway was expected or not <ref>Driver, B. E., Prekker, M. E., Klein, L. R., Reardon, R. F., Miner, J. R., Fagerstrom, E. T., … Cole, J. B. (2018). Effect of Use of a Bougie vs Endotracheal Tube and Stylet on First-Attempt Intubation Success Among Patients With Difficult Airways Undergoing Emergency Intubation: A Randomized Clinical Trial. JAMA: The Journal of the American Medical Association, 319(21), 2179–2189.</ref>
*Blind orotracheal intubation
 
===Lighted Optical Stylets===
*High success rate - especially good for trauma, c-spine precautions
*Use for both reg and nasotrach
*Lower complication rate
*Limited by fogging, secretion, recognition of anatomy, cost, and rare provider experience
 
===[[LMA]]===
*Can use without muscle relaxants
*Better than face mask
*Can be used as bridge to fiberoptic intubation
*Limited by unreliable seal at peak insp pressure
*Aspiration risk
*Mucosal trauma
*LMA better than endotracheal for paramedics, especially in pediatric patients<ref>Zhu X-Y, Lin B-C, Zhang Q-S, Ye H-M, Yu R-J. A prospective evaluation of the efficacy of the laryngeal mask airway during neonatal resuscitation. Resuscitation. 2011;82(11):1405–1409. doi:10.1016/j.resuscitation.2011.06.010</ref><ref>Calkins MD, Robinson TD. Combat trauma airway management: endotracheal intubation versus laryngeal mask airway versus combitube use by Navy SEAL and Reconnaissance combat corpsmen. J Trauma. 1999;46(5):927–932</ref>
 
*Intubating LMA (LMA-Fastrach) provides the opportunity to convert to a definitive airway after rescue with the supraglottic device
 
===Combitube- esoph obturator===
*Good for nurses and paramedics with limited intubation skill
*Indicated if difficult airway predicted: cannot see glottis with laryngoscope
*Reduced risk for aspiration compared to  face mask or LMA
*Can maintain spinal immobilization
*Large size predisposes to esophogeal dilatation and laceration as a complication
 
===[[Percutaneous transtracheal ventilation]]===
*PTV
*Prefered over crithyrotomy in children up to age 10-12
*Needle, 16-18ga through cricoid membrane, connected to 50 psi 02<ref>Beck, E., Kharasch, M., Casey, J., Ochoa, P., Menon, S., Calabrese, N. and Wang, E. (2011) ‘Percutaneous Transtracheal jet ventilation’, Academic Emergency Medicine, 18(5), pp. e38–e38.</ref>
**Oxygenates well
**Ventilate through glottis and upper airway - can retain CO2
*Need adequate oxygen pressure
*1 sec insp and 2- 3 sec exp to avoid breath stacking
*Can use for 30-45 min
*May cause pneumothorax or barotrauma
*Contraindications
**Distorted anatomy
**Bleeding diathesis
**Complete airway obstruction


==See Also==
==See Also==
*[[Airway sizes (peds)]]
{{Related Difficult Airway Pages}}


{{Related Difficult Airway Pages}}
==References==


[[Category:Critical Care]]
[[Category:Critical Care]]
[[Category:Procedures]]
[[Category:Procedures]]

Latest revision as of 18:28, 5 March 2025

Advanced Airway Adjuncts

Emergency intubator demonstrating preloaded bougie technique on a mannequin.
Two example LMA airways.

Advanced Airway Adjuncts Chart

Airway Adjunct Examples Pros Cons
Endotracheal tube introducer Gum elastic bougie
  • Higher first pass success when used with direct laryngscope vs. styletted ET tube regardless of whether difficult airway was expected or not[1]
  • Can pass blind and confirm tracheal placement with tracheal clicks and hold-up sign
  • Success rates likely depend on operator familiarity with device
Lighted optical stylets
  • High success rate - especially good for trauma, c-spine precautions
  • Use for both reg and nasotrach
  • Lower complication rate
  • Limited by fogging, secretion, recognition of anatomy, cost, and rare provider experience
Supraglottic airway LMA
  • Easy to place
  • Can be placed quickly
  • Does not protect against aspiration
Esophogeal obturator Combitube
  • Good for nurses and paramedics with limited intubation skill
  • Indicated if difficult airway predicted: cannot see glottis with laryngoscope
  • Reduced risk for aspiration compared to face mask or LMA *Can maintain spinal immobilization
  • Large size predisposes to esophogeal dilatation and laceration as a complication
Pediatric jet ventilation
  • Prefered over cricothyrotomy in children up to age 10-12
  • Oxygenates well
  • Can use for 30-45 min
  • Can retain CO2
  • May cause pneumothorax or barotrauma

See Also

Airway Pages

References

  1. Driver, B. E., Prekker, M. E., Klein, L. R., Reardon, R. F., Miner, J. R., Fagerstrom, E. T., … Cole, J. B. (2018). Effect of Use of a Bougie vs Endotracheal Tube and Stylet on First-Attempt Intubation Success Among Patients With Difficult Airways Undergoing Emergency Intubation: A Randomized Clinical Trial. JAMA: The Journal of the American Medical Association, 319(21), 2179–2189.