We do actually have a laryngoscope that is used like a Macintosh (Lindholm). It's used identically with pressure in the vallecula on the hyoepiglottic ligament. The advantage of the Lindholm is that doesn't distort the natural anatomy of the supraglottis or glottis, so it's useful for things like supraglottoplasties or vocal fold injections.
Lindholm:
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That being said, our most common difficult airway scope is a straight, narrow blade (Hollinger anterior commissure scope). It is great at slipping around tumors, large tongues, narrow mandibles, edema, small mouth openings, etc. It is advanced past the epiglottis and can probably give a better view than any non-video laryngoscope in an anterior larynx.
Hollinger:
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All things considered, anybody who does a lot of airway work needs a lot of tools in their toolbelt. In the ENT world, there is no "one size fits all" laryngoscope (the Dedo is a happy compromise between a lot of factors which is why it's our most commonly used scope).