Chemodenervation Treatment for Facial Paralysis
What Is Chemodenervation Treatment for Facial Paralysis?
Chemodenervation treatment for facial paralysis uses botulinum toxin injections (most commonly Botox) to temporarily weaken or relax targeted facial muscles. This approach helps improve facial balance by addressing issues such as asymmetry, muscle spasms, or unwanted facial movements caused by facial nerve dysfunction.
Understanding Synkinesis and Involuntary Facial Movements
After facial paralysis, some patients develop synkinesis, a condition where muscles contract involuntarily during certain facial movements. This overactivity can lead to discomfort, tightness, or unwanted expressions, further affecting facial symmetry.
How Botulinum Toxin Helps Improve Facial Symmetry
Chemodenervation with botulinum toxin is a well-established treatment for patients experiencing synkinesis and other complications of facial paralysis. By relaxing the overactive muscles, the injections reduce involuntary movement and restore a more balanced appearance. In some cases, the non-paralyzed side of the face may also be treated if those muscles are overactive, helping to achieve greater overall symmetry.
Examples of synkinesis that can be treated with chemodenervation:
- Preventing the eye on the affected side from closing when you smile
- Preventing your neck muscles from tightening when you smile
- Preventing the corner of the mouth on the affected side to pull up when you blink or close your eye
- Preventing your eye from closing when you chew or pucker your lips
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