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Updated: Jun 18, 2026

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
Published on: March 1, 2015
[Sequelae of peripheral facial palsy]
Ramón Balaguer García1, Susana Casaña Pérez, María Morales Suárez-Varela
1Servicio de Otorrinolaringología, Hospital Universitario Dr. Peset, Valencia, España. balaguergarcia@gmail.com
Sequelae are more common after peripheral facial palsy (PFP) with significant axonal loss. Female gender and left-side PFP involvement are identified as additional risk factors for developing sequelae.
Area of Science:
- Neurology
- Neurophysiology
Context:
- Peripheral facial palsy (PFP) can lead to long-term functional deficits.
- Understanding the neurophysiological basis of PFP sequelae is crucial for patient management.
Purpose:
- To investigate the functional sequelae following peripheral facial palsy (PFP).
- To analyze the impact and relationship between PFP sequelae and the degree of facial nerve dysfunction from a neurophysiological perspective.
Summary:
- A retrospective study of 150 PFP patients utilized electroneurography and electromyography to assess axonal damage and reinnervation.
- 31.9% of patients developed sequelae, with miochymia being the most frequent (24%).
- Significant axonal loss, female gender, and left-side PFP involvement were statistically associated with a higher incidence of sequelae.
Impact:
- Identifies significant axonal loss as a primary risk factor for PFP sequelae.
- Highlights female gender and left-side PFP involvement as novel risk factors.
- Provides neurophysiological insights into the development of PFP sequelae.
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