**4. Usage of videolaryngoscopy**

*Special Considerations in Human Airway Management*

*A videolaryngoscope with a hyperangular blade (own photography).*

*Preforming a tube by a stylet to adjust the curve of the tube to the hyperangular blade (own photography).*

is then gently moved up and forward at a 45-degree angle in an effort to display the epiglottis and glottis, and the tip of the blade is directed below the epiglottis to lift it

and better display the glottis. The further procedure is as described above. If a hyperangular blade is used (**Figure 10**), then, unlike the procedures described above, the blade is immediately placed medially in the mouth and progressively directed toward the base of the tongue along the medial line of the tongue. At this point, lifting the base of the tongue attempts to visualize the uvula and place it similar to the one described above by displaying the uvula to the middle of the lower edge of the screen. The further procedure is as described above. To avoid the possible situation of obviously seeing the glottis but not being able to pass the tube through it, it is important to carefully preform the tube according to the hyperangular blade (**Figure 11**). If necessary, a metal stylet can

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**Figure 12.**

*A metal stylet (own photography).*

**Figure 10.**

**Figure 11.**
