Bells palsy

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Bells palsy

  1. 1. BELLS PALSY
  2. 2. DEFINITION Bells palsy is a form of facial paralysis resulting from a dysfunction of the cranial nerve VII (the facial nerve) that results in the inability to control facial muscles on the affected side
  3. 3. INCIDENCE Bells palsy affects about 30,000 - 40,000 people a year in the United States.
  4. 4. ETIOLOGY The cause is often not clear. A type of herpes infection called herpes zoster (herpes zoster) is a painful, blistering skin rash due to the varicella-zoster virus, the virus that causes chickenpox might be involved. Other conditions that may cause Bells palsy include: HIV infection Lyme disease Middle ear infection Sarcoidosis
  5. 5. CLINICAL MANIFESTATIONS A cold is the starting before the symptoms of Bells palsy begin. Symptoms are almost always on one side of the face only. They may range from mild to severe. The face will feel stiff or pulled to one side, and may look different
  6. 6. Contd.. Difficulty in closing one eye Difficulty in eating and drinking; food falls out of one side of the mouth Drooling due to lack of control over the muscles of the face Drooping of the face, such as the eyelid or corner of the mouth Problems in smiling, or making facial expressions Twitching or weakness of the muscles in the face
  7. 7. Other symptoms Dry eye, which may lead to eye sores or infections Dry mouth Headache Loss of sense of taste Sound that is louder in one ear (hyperacusis) Twitching in face
  8. 8. DIAGNOSTIC STUDIES Bells palsy can be diagnosed just by taking a health history and doing a complete physical examination. If it is doubtful that a brain tumor is causing your symptoms, you may need: CT scan of the head Magnetic resonance imaging (MRI) of the head Sometimes, a test to check the nerves that supply the muscles of your face:
  9. 9. CONTD.. Electromyography (EMG) is a test that checks the health of the muscles and the nerves that control the muscles Nerve conduction test Nerve conduction velocity (NCV) is a test to see how fast electrical signals move through a nerve
  10. 10. MEDICAL MANAGEMENT Lubricating eye drops or eye ointments to keep the surface of the eye moist. Advice to wear an eye patch while you sleep. Corticosteroids may reduce swelling around the facial nerve. Antivirals,(such as acyclovir) Mild analgestics to releive pain
  11. 11. Contd.. Physiotherapy can be beneficial to some individuals with Bell’s palsy as it helps to maintain muscle tone of the affected facial muscles and stimulate the facial nerve.
  12. 12. Complications Excess drying of the eye surface, leading to eye sores or infections.
  13. 13. Prevention There is no known way to prevent Bells palsy

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