advanced airway management & intubation the difference between life and death
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Advanced Airway Management & Intubation
The Difference Between
Life and Death
Topics For Discussion
Basic anatomy and physiology.
Advantages of endotracheal intubation.
Indications of intubation. Contraindications of
intubation. Complications of
intubation. Equipment required for
intubation.
Technique of endotracheal intubation.
Rules of endotracheal intubation.
Tube sizes. Rules and principals of
suctioning. Other airway adjuncts. Conclusion. Difficult intubations.
Anatomy and Physiology
The airways can be divided in to parts namely:
The upper airway.
The lower airway.
The Upper Airway
The Lower Airway
Advantages of Endotracheal Intubation
Cuffed E.T tubes protect the airway from aspiration.
E.T tube provides access to the tracheobronchial tree for suctioning of secretions.
E.T tube does not cause gastric distention and associated danger of regurgitation.
E.T tube maintains a patent airway and assists in avoiding further obstruction.
E.T tube enables delivery of aerosolized medication.
Indications for Intubation
Inadequate oxygenation(decreased arterial PO2) that is not corrected by supplemental oxygen via mask/nasal.
Inadequate ventilation (increased arterial PCO2).
Need to control and remove pulmonary secretions.
Any patient in cardiac arrest.
Indications for Intubation
Ant patient in deep coma who cannot protect his
airway.(Gag reflex absent.).
Any patient in imminent danger of upper airway
obstruction (e.g. Burns of the upper airways).
Any patient with decreased L.O.C, GCS <= 8.
Severe head and facial injuries with
compromised airway.
Indications Cont…
Any patient in respiratory arrest Respiratory failure
Hypoventilation/Hypercarbia Paco2 > 55mmhg
Arterial hypoxemia refractory to O2 Paco2 < 70 on 100% O2
Contraindications for Intubation
Patients with an intact gag reflex. Patients likely to react with laryngospasm
to an intubation attempt. e.g. Children with epiglottitis.
Basilar skull fracture – avoid naso-tracheal intubation and nasogastric/pharyngeal tube.
Complications Associated With Intubation
Trauma of the teeth, cords, arytenoid cartilages, larynx
and related structures.
Nasotracheal tubes can damage the turbinates, cause
epistaxis, and even perforate the nasopharyngeal
mucosa.
Hypertension and tachycardia can occur from the
intense stimulation of intubation; This is potentially
dangerous in the patient with coronary heart disease.
Transient cardiac arrhythmias related to vagal
stimulation or sympathetic nerve traffic may occur .
Complications Continued…
Damage to the endotracheal tube cuff, resulting in a cuff leak and poor seal.
Intubation of the esophagus, resulting in gastric distention and regurgitation upon attempting ventilation.
Baro-trauma resulting from over ventilating with a bag without a pressure release valve( phneumothorax).
Complications Continued…
Over stimulation of the larynx resulting in laryngospasm, causing a complete airway obstruction.
Inserting the tube to deep resulting in unilateral intubation (right bronchus).
Tube obstruction due to foreign material, dried respiratory secretion and/or blood.
Equipment Required for Successful Intubation
Equipment Cont…
Laryngoscope with relevant size blades. Magill forceps. Flexible introducer. 10-20 ml syringe. Oropharangeal airways – all sizes. Tape. ET tubes – relevant sizes. Bag-valve-mask with oxygen connected. Suction unit with Yankauer nozzle and
endotracheal suction catheter.
Tools
Handle Batteries Miller Macintosh
Apple Bulb Fiber Optics
Attaching blade to handle
Adapter Markings Pilot Cuffs Stylet Cuffs Murphy Eye
ET Tubes
Magill Forceps
More Tools
BVM Suction GOGGLES/Gloves Correct Size Tube
Measured by I.D. in mm > 6 Cuffed
Sellick’s Maneuver
Alternative Airways Combitube King LT PTL A EOA EGTA LMA OPA/NPA
The Goal
Align: Oropharynx Glottis
Gently Pass tube 1-2.5 cm past cords ½ to 1” 2-3 cm above cords
Secure Tape Tamer Shoelace Super Glue Staple Gun Vice Grips
Mark Depth 21 – 23 cm at Lips
Technique of Endotracheal Intubation
Technique Cont…
Position the patient supine, open the airway with a head-tilt chin-lift maneuver.(Suspected spinal injury, attempt naso-tracheal intubation, spine in neutral position.).
Open mouth by separating the lips and pulling on upper jaw with the index finger.
Hold laryngoscope in left hand, insert scope into mouth with blade directed to right tonsil.
Once right tonsil is reached, sweep the blade to the midline keeping the tongue on the left.
Technique Cont…
This brings the epiglottis into view.” DO NOT LOOSE SIGHT OF IT!”
Advance the blade until it reaches the angle between the base of the tongue and epiglottis.( volecular space)
Lift the laryngoscope upwards and away from the nose – towards the chest. This should bring the vocal cords into view. It may be necessary for a colleague to press on the trachea to improve the view of the larynx.
Place the ETT in the right hand. Keep the concavity of the tube facing the right side of the mouth.
Insert the tube watching it enter through the cords.
Technique Cont…
Insert the tube just so the cuff has passed the cords and then inflate the cuff.
Listed for air entry at both apices and both axillae to ensure correct placement using a stethoscope.
Rules of Intubation
Always have a suction unit available. An intubation attempt should never exceed
30 seconds. Oxygenate the patient pre and post
intubation with a bag-valve-mask.(100% O2). Have sedative medication available if
needed. (e.g. Midazolam 15mg/3ml) Always recheck tube placement manually
guided by oxygen saturation readings.(Spo2).
Tube sizes
Newborn – to 4 kg - 2.5 mm (uncuffed). 1-6 months 4-6 kg – 3.5 mm (uncuffed). 7-12 months 6-9 kg – 4.0 mm (uncuffed). 1 year 9 kg – 4.5 mm (uncuffed). 2 years 11 kg – 5.0 mm (uncuffed). 3-4 years 14–16 kg - 5.5 mm (uncuffed). 5-6 years 18–21 kg – 6.0 mm (uncuffed). 7-8 years 22-27 kg – 6.5 mm ( uncuffed).
Tube Sizes 9-11 years 28-36 kg – 7.0 mm(cuffed). 14 to adults 46+ kg – 7.0 – 80 mm (cuffed). Adult female 7.0 – 8.0mm (cuffed). Adult male 7.5 – 8.5 mm (cuffed). The size of the tube may also be determined by
the size of the patients little finger.
Patients below the age of 8 require uncuffed ETT due to damage caused by the cuff in younger
patients. Always monitor the ECG activity during intubation.
4 Rules of Suctioning
Never suction further than you can see.
Always suction on the way out.
Never suction for longer than15 seconds.
Always oxygenate the patient before and
after suctioning.
Conclusion
Always oxygenate patient before and after intubation.
Do not attempt intubation unless you are totally skilled, rather perform bag-valve-mask ventilation.
Always monitor the sPO2 readings. Always reconfirm tube placement from
time to time.
Hyperventilate
Insert to proper depth
Sweep left, Pass tube
Don’t let go of tube
Confirm placement
Secure tube, EtCO2
Achieving the Goal
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