The Art of Blade (Hyper)Angulation
The Essentials
The hyperangulated blade is built for indirect visualization, which means your eyes stay on the screen, not down the barrel. Its steep curve shifts the camera’s position, giving you a sharper, more upward view of the glottis. That angle? It’s powerful, but tricky unless you understand how to translate the two-dimensional image on the screen into the 3D spatial relationships of the landmarks you’re seeing. Sometimes the clearest view isn’t the easiest for tube delivery. HAVL gives you a front-row seat—but you’ll need the right technique to take full advantage.
Key Points
☑ The blade’s steeper curve is designed explicitly for indirect visualization only, so you’ll be looking at the screen when you deliver the tube.
☑ The blade’s geometry changes the camera’s location relative to the glottic structures. This means you will look at them from a more acute angle (i.e., you will look up at them).
☑ This enhanced view can sometimes be too much of a good thing. With HAVL, the “best” view may not be optimal for tube delivery.
Steps Towards Mastery
Blade Design & Spatial Relationships
Let’s start with the first thing you’ll notice when you grab a hyperangulated video laryngoscope: that blade shape. This isn’t just a minor design tweak—it’s a dramatic shift. Compared to the Miller blade, the classic Macintosh blade provides a smooth, gentle arc at approximately 32 degrees; the hyperangulated blade ramps up to nearly 60 degrees. It’s a sharp, deep curve—more of a “U-turn” than a glide path—like the blade is folding back toward itself.
But here’s the twist: when you hold it, it feels familiar. Same grip. Same weight. That’s intentional. But don’t be fooled. The moment you insert it, everything changes—the approach, the view, and especially how you deliver the tube.
Spend a little time getting into some more of the features of the hyperangulated blade and highlighting some significant differences compared to a standard Macintosh blade in this short video.
Time to Practice!
Step Into the Training Lab
It’s time to focus on establishing the key skills you need for success. Review, practice, and repeat, then proceed to the next station when you’re ready.
Guided Video
Guided Audio
Listen Here
MicroSkills: Breaking it Down
👉 Click Here for A Breakdown of Important HA Blade Skills
Skill 1: How to Hold the Blade
Checklist:
- Hold in your LEFT hand.
- Use a “light & low” grip.
- Keep a relaxed, neutral wrist.
- Avoid gripping too tightly.
Skill 2: Opening the Mouth
Checklist:
- Open the mouth with the scissor technique.
Skill 3: Inserting the Blade
Checklist: Troubleshooting Tip
- Inserting the blade midline
Skill 3: Obtaining the Optimal 50/50 Glottic View
Subskill A: Seating the Blade in the Vallecula
- Identify the epiglottis clearly on screen.
- Guide the tip of the blade to the vallecula.
- Avoid overshooting into the laryngeal inlet.
Media Placeholder: [Insert short video or GIF here demonstrating proper blade hold]
Subskill B: Pulling Back
- If no glottic view, pull back 1–2 cm.
- Watch for the epiglottitis to come into view.
- Advance again gently
Media Placeholder: [Insert short video or GIF here demonstrating proper technique]
Subskill C: Lifting Up
- Once seated, apply a gentle lift along the axis of the blade.
Media Placeholder: [Insert short video or GIF here demonstrating proper technique]
Subskill D: Tilting Handle Forward
- Tilt the handle forward to optimize the angle to the glottis.
- Avoid cranking back or levering the handle into the upper teeth.
Media Placeholder: [Insert short video or GIF here demonstrating proper technique]
Before You Leave
Don’t underestimate the value of breaking down and practicing these microskills for HAVL. Before you go, make sure you have mastered the following skills:
- Be able to insert the HA Blade in the Mouth Without Going Too Deep
- Skill Engaging the Vallecula Effectively to Lift the Epiglottis
- Maneuvering the HA Blade (pull back / tilt/lift) to achieve an optimal 50/50 view and alignment with the tracheal axis.
Troubleshooting Tips
Align With the Tracheal Axis
Many tube delivery issues that occur with a hyperangulated blade result from forgetting that the “best” view is not optimal for tube delivery. The optimal view is the one that aligns with the tracheal axis. So, if you have a spectacular close-up image of your glottic structures on the screen, you have shortened and steepened the path to the trachea, making tube delivery harder.
“The three most common errors clinicians make when using the hyperangulated blade stem from a desire to achieve the ‘best view’ and the belief that more is always better. That is not the case with HAVL. If you have a perfect view of the glottis that fills the screen, you probably have too much of a good thing.“
-Jonathan St George, MD
- Pull Back: This gives you more room to deliver the tube to your target and reduces the angle of approach to the glottis.
- Lift/Elevate: A slight lifting of the blade away from the posterior oropharynx reduces the approach angle to the glottis.
- Tilt Forward: Tilting the blade’s handle forward (away from you) reduces the angle and helps align with the tracheal axis.
The Bottom Line
The hyperangulated blade is a game-changer, especially in difficult airways, delivering unmatched glottic views by navigating around structures rather than through them. But to make it work, you’ll need to adapt. Its sharper angle alters intubation mechanics, requiring new visualization and tube-delivery strategies. With just a few key refinements, you can unlock its full potential and make HAVL your go-to approach.
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