In neurointervention, anchoring refers to any technique used to stabilize a catheter, guidewire, or device by securing it in place—either temporarily or permanently—within the vascular system to prevent unwanted movement during delicate procedures like coiling or stenting.

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### 🧠 Types of Anchoring:

1. Distal Anchoring

 ➤ Using a **balloon**, **coil**, or **wire position** in a distal branch to secure the system while working proximally.
 **Example**: Inflating a balloon in a distal artery to hold the microcatheter steady while deploying a stent across a wide-necked aneurysm.

2. Proximal Anchoring

 ➤ Using support from a **guide catheter** or **balloon in the proximal parent artery** to counteract movement.

3. Intrasaccular Anchoring

 ➤ The microcatheter tip is **looped or coiled inside the aneurysm**, and its shape and friction **stabilize it** enough to allow coil or stent delivery.

4. Stent Anchoring (device anchoring)

 ➤ A **partially deployed stent** may serve as an anchor to facilitate repositioning or further navigation.

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### 🔧 Purpose:

* Prevents kickback or recoil of the microcatheter. * Enables precise device deployment in tortuous or unstable anatomy. * Critical in wide-necked aneurysms, bifurcations, or cases with unfavorable catheter angles.

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Let me know if you want examples of anchoring techniques with specific devices (e.g., Solitaire, Neuroform, Comaneci) or a diagram for clarity.