Airway illusions

/Airway illusions
Airway illusions 2017-01-15T18:29:35+00:00

Pharyngeal airway illusion

Your patient is getting obstructed. You want a large airway to insert into his oropharynx. So which airway below is bigger ?

airway_static_illusion

Most people will see that the lower airway is bigger.

b_airway_static_illusion

In reality, they are both exactly the same size. The fixed size red rectangle shown below shows you this.

airway_animated_illusion


Tracheal tube illusion

Your patient is still obstructed. You decide to intubate. You want a long tracheal tube. Which tube below is longer, the horizontal or vertical one ?

b_tube_illusion_static

Most people think that the vertical one is longer than the horizontal one.

b_tube_illusion_static

However, as the animation below shows you,  both tubes have exactly the same length.

tube_illusion_animated