Blood, vomit, or no light
A laryngoscope needs a view. Fingers do not. When the airway is full or the scene is dark, touch still works.
Vito Palumbo/Digital intubation
How he taught it
Digital intubation
No laryngoscope. No light. A patient pinned in a car, or face down in a ditch, or with a mouth full of blood. The paramedic kneels at the patient's side, slides two fingers down the tongue, feels for the epiglottis, and guides the tube in by touch. Vito taught this technique to a generation of Elkhart medics, and he could explain it to anyone with a pen and a napkin. This is that napkin, drawn out.
A teaching illustration, not medical instruction. Digital intubation is an advanced airway skill for trained providers, used only on a deeply unresponsive patient with no gag reflex.
The map in your fingertips
Everything happens along the midline of the tongue. Follow it back and down and it drops into a pocket, the vallecula. Just behind that pocket stands the epiglottis, a flap of cartilage that feels like the tip of a nose or the tragus of an ear. The trachea opens directly behind and below it, in front. The esophagus is behind, and that is where a blind tube goes if nothing guides it forward.
When he reached for it
The patient you cannot move
Trapped in a vehicle, face down, or sitting up. The head does not need to be tilted, which also matters when the neck may be broken.
Gear failure
A dead bulb, a dropped blade, or a broken scope. A gloved hand and a tube are enough.
Never on a patient who can bite
The patient must be deeply unresponsive with no gag reflex. A bite block or an oral airway goes between the molars first.
Step by step
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1
Set up
Lubricate a 7.5 or 8.0 tube with a stylet inside and bend it into an open J, a hockey stick. Glove up. Put a bite block between the molars. Kneel at the patient's left side, facing the head, or at the head if the scene allows. An assistant holds the bag and the suction.
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2
Walk the tongue
Index and middle fingers of the left hand go in along the middle of the tongue, palm up, and walk back. Stay on the midline. The tongue drops away, the fingertips fall into the vallecula, and just behind it the middle finger touches the epiglottis. Vito's line: it feels like the tip of your nose.
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3
Hook and lift
The middle finger hooks the epiglottis and lifts it up and away from the back wall. The index finger stays beside it. The two fingers are now a ramp pointing at the glottic opening, and the esophagus is behind the knuckles where the tube cannot reach it.
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4
Guide the tube
The right hand feeds the tube in along the palm side of the fingers. The index fingertip steers the tip of the tube forward, past the epiglottis, into the opening. You feel it go, a small give as it passes the cords. Advance to about 21 to 23 centimeters at the teeth, hold the tube, pull the stylet, inflate the cuff.
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5
Prove it
Bag the patient and watch the chest rise. Listen over the stomach first, then both lungs. Put the capnography on and look for the waveform. If the tube is in the esophagus, the fingers were not forward enough: pull it, bag, and go again. Secure the tube and note the depth.
What the fingers tell you
Soft and dropping away
The tongue. Keep walking back along the middle.
A pocket
The vallecula. The epiglottis is one fingertip behind it.
A firm flap
The epiglottis. Hook it with the middle finger and lift.
A small give
The tube passing the cords. Hold it there and confirm.
Digital intubation was described for emergency use by Stewart in 1984 and taught in paramedic programs through the 1990s and 2000s as a backup to the laryngoscope. Vito learned it, used it, and taught it as an EMS instructor from 1992 on.