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Overview. Indications/ContraindicationsBasic techniqueAdjusting placement. Nasotracheal Intubation. IndicationsNeed for definitive airway and oral access not an option (trismus, trauma, etc)Imminent resp failure (concerned about RSI)Unable to align for oral intubationContraindicationsApneaNasal/maxillofacial trauma (*?basal skull
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1. Nasotracheal Intubation Steve Lan
2. Overview Indications/Contraindications
Basic technique
Adjusting placement
3. Nasotracheal Intubation Indications
Need for definitive airway and oral access not an option (trismus, trauma, etc)
Imminent resp failure (concerned about RSI)
Unable to align for oral intubation
Contraindications
Apnea
Nasal/maxillofacial trauma (*?basal skull #)
Coagulopathy
4. Complications Epistaxis
Vomit/aspiration
5. Set Up “Awake” intubation, usually sitting
“sniffing” position
Tube 0.5-1.0mm smaller than for oral
Topical anesthesia, vasoconstrictor, ++lube
Usual monitors
6. Technique Advance tube with bevel towards septum
Straight back
Slight twisting action
Don’t force it!
“Give” at 6-7cm as tube goes past 90 degree turn
7. Technique Auscultate proximal end listening for breath sounds
May also see fogging
Loudest point should be just in front of laryngeal inlet
Advance during inspiration
Males: 28cm at nares, women: 26cm
8. Where did it go? Operating Room study found <50% trachea placement on first try
Possible placements:
Anterior to epiglottis (vallecula)
Piriform fossa
Esophagus
9. Where did it go?
10. Tube Placement – In Trachea Breath sounds persist
Able to advance tube
Coughing
No voice
11. Tube Placement – Anterior to Epiglottis Signs
Tube gets stuck ~15cm
Breath sounds may continue
Cough “through tube”
Adjustment
Pull back 2 cm
Slightly flex neck
12. Tube Placement – Piriform sinus Signs
Tube gets stuck
Breath sounds stop, no cough reflex
Pt able to phonate
Bulge to lateral neck above larynx
Adjustment
Pull back tube
Slight twist away from bulge and advance
13. Tube Placement – Esophagus Signs
No breath sounds
Tube can still be advanced
No cough
Pt able to vocalize
Adjustment
Pull back tube, slightly extend neck
Slight pressure to larynx
Stick tongue out
14. Another Trick(if c-spine is a concern) Pull back 1cm from point where breath sounds are lost
Inflate cuff with 15cc
15. Another possible problem Tube caught on aretynoid cartilage
Pull back
Rotate tube 90 degrees (bevel posterior) and advance