特发性面神经麻痹英文课件

Bell’s phenomenon
• the palpebral fissure is wider and closure of the eye is impossible because of the paralysis of the orbicular ,when the patient attempt to close the eye ,the eye globe rolls upwards and slightly out .
• At the onset there may be pain in the mastoid region or around the angel of the jaw.
• The symptoms usually produce its maximum effect within several hours or one to two days. The features is paralysis of the unilateral muscles of expression.
Clinical Features
the upper facial paralysis • the wrinkles of the brow are
smoothed out Frowning and raising the eyebrow are impossible • the palpebral fissure is wider and closure of the eye is impossible because of the paralysis of the orbicularis
Baidu Nhomakorabea
Diagnosis and Differential Diagnosis
• According to the rapid onset of facial palsy of peripheral type
• Differential Diagnosis 1 Guillain - Barre - Syndrome 2 Otitis media. labyrinthitis 3 posterior fossa disease
recover completely. • If the patient can not recover in six month,
he will suffer from the disability.
Acute inflammatory demyelinating polyneuropathy (AIDP)
prognosis
• The prognosis is usually good. • After one to two week .the patient begin to
recover . • After one to two month .the patient recover
prominently. • About seventy fine percent of causes can
Etiology
• the cause is unclear yet • It may be (1)Chill (2)inflammation of virus
vasoconstriction----ischemia---edema (3)instability of autonomic nerve
Treatment
Acute phase • prednisone 10mg tid po. 5—10days • VitamineB1.B12 • physiatrists • the protection of the expose cornea
Treatment
recovering phase • exercise of the paralyzed facial muscles • acupuncture • physiatrists • facio-hypoglossal anastomosis.
Idiopathic Facial Palsy
Definition
Idiopathic Facial palsy is also called Bell`s palsy or Facial neuritis. It is characterized by a rapid onset of facial palsy of peripheral type
Guillain---Barre Syndrome
Definition
It is a rapidly progressive polyneuropathy. The damaged region is usually the spinal roots and peripheral nerves, occasionally the cranial nerves .the pathologic change is segmental demyelination . The manifestation is characterized by a symmetric tetraplegia.
pathology:
• swelling of facial nerve • Demyelination and degeneration
of the axon
Clinical Features
• It may occurs at any age usually in young adults males are commoner then females. The onset is acute.
Clinical Features
the lower facial paralysis • the nasolabial furrow is smoothed out and
the mouth is dropped and drawn over to the sound side • the patient is unable to purse the lips and whistle • Owing to paralysis of the buccinator the food tends to accumulate between the teeth and cheek. Dribbling may occur.