What are the differences between central facial paralysis and peripheral facial paralysis?
May 23, 2023
Source: Cainiu Health
Dr. Yang Jun
Introduction
The differences between central and peripheral facial paralysis generally lie in clinical manifestations, presence of damage to other cranial nerves, and the muscles affected. Central facial paralysis is usually caused by lesions above the facial nerve nucleus, resulting in relatively isolated paralysis of the lower part of the face; patients have no difficulty with eye opening or frowning. In contrast, in peripheral facial paralysis, none of the facial muscles can move.
The differences between central and peripheral facial paralysis generally include distinct clinical manifestations, presence or absence of damage to other cranial nerves, and different muscles affected. The specific details are as follows:
1. Different clinical manifestations
Central facial paralysis is usually caused by lesions above the facial nerve nucleus and involves relatively isolated paralysis of the lower part of the face. Patients can still open their eyes and frown normally. In contrast, peripheral facial paralysis results from damage to the facial nerve nucleus or the facial nerve itself, leading to complete facial paralysis. In general, no area of the face can move.
2. Presence or absence of other cranial nerve involvement
Central facial paralysis is typically due to brain lesions and may be accompanied by other neurological deficits, such as hemiplegia. Peripheral facial paralysis, however, usually lacks clear fixed neurological signs and presents as an isolated peripheral palsy, sometimes accompanied by pain behind the ear.
3. Different muscles affected
In central facial paralysis, only the lower facial muscles on the affected side become paralyzed, while the upper facial muscles remain unaffected. In peripheral facial paralysis, all facial expression muscles on the affected side are involved.
In addition to the above, there are also differences in etiology and treatment approaches. It is recommended that patients pay attention to regular physical exercise in daily life, such as running or mountain climbing, to enhance immunity and overall resistance.
