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Facial Paralysis
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Facial Paralysis Diagnosis

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The diagnosis of facial paralysis is almost always clinical. The Facial Grading System (FGS) evaluation scale is used for rehabilitation, as it assesses movement, symmetry and synkinesis (involuntary movements). 

A neurophysiological study is sometimes added to the clinical study and consists of the following tests: 

Electroneurografía

Evoked electromyography or electroneurography to find out the degree of nerve injury and assess prognosis of the facial paralysis. 

% Axonal preservation 

Degree of injury 

Prognosis 

<10% 

Severe 

Poor, significant sequelae 

10-20% 

Moderate 

Uncertain 

>20% 

Mild 

Good 
Blink reflex

The Blink Reflex is used to study facial nerve injuries and blocks when no degree of paralysis can be clinically observed. 

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Substantiated information by:

Sandra Vázquez

Published: 11 June 2024
Updated: 11 June 2024

The donations that can be done through this webpage are exclusively for the benefit of Hospital Clínic of Barcelona through Fundació Clínic per a la Recerca Biomèdica and not for BBVA Foundation, entity that collaborates with the project of PortalClínic.

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