The sphenoid sinus, a small cavity in the brain's base, varies greatly among people worldwide. Surgeons need to comprehend these variations when planning surgeries accessed through the nose. This review aims to gather and analyze studies that explore how these differences affect endoscopic endonasal transsphenoidal surgeries (ETSS), a common procedure to reach the brain through the nose.

Imagine planning a road trip, but your map isn't up-to-date. That's similar to what surgeons face if they don't know about a patient's sinus variations before ETSS. Most surgeons rely on CT scans for a sneak peek, but even these can miss some details.

Some studies suggest that these variations don't significantly impact surgery outcomes. Others argue that knowing these variations can lead to faster and safer procedures. So, what's the deal?

Several factors could explain these mixed results. First, studies vary in their methods and definitions of what counts as a 'variation. ' Second, the severity of variations can range greatly. A slight difference might not affect surgery, but a big one could.

Think of it like baking cookies. If you slightly tweak the recipe, your cookies might still be good. But if you swap key ingredients, you might end up with something quite different.

Also, surgeons' experience might play a role. A seasoned surgeon might navigate unexpected sinus variations with ease, while a less experienced one might struggle.

So, do sinus variations matter? Well, it's complicated. It might depend on the specific variation, the surgeon's experience, and the procedure. But one thing's for sure: surgeons should always do their homework before any ETSS.

Nose to Brain: How Sinus Differences Impact Surgeries

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