16 - Bell Palsy Flashcards

1
Q

What is Bell palsy?

A

lower motor neuron paralysis of the facial nerve

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2
Q

Bell palsy is often caused by what virus

A

HSV-1

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3
Q

Who does it occur more frequently in?

A

pregnant women, diabetics, those with migraine or HTN

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4
Q

Up to ___% achieve spontaneous recovery without treatment

A

85

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5
Q

Why is eye care important?

A

if the eye cannot be closed voluntarily, it is at risk for corneal abraisions

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6
Q

What eye care is recommended?

A
  • Lubricate with eye drops or ointment

- Tape eyelid closed at night and protect with glasses during the day

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7
Q

What analgesics are recommended and when?

A
  • ibuprofen or acetaminophen are occasionally required for first 1-2 days
  • opioids such as morphine are rarely needed
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8
Q

Why are corticosteriods recommended?

A
  • have been shown to reduce rates of incomplete recovery as well as synkinesias and autonomic dysfunction in ADULTS
  • anti-inflammatory action of corticosteroids minimizes nerve damage, and reduces pain
  • corticosteroid-treated patients are less likely to develop denervation (loss of nerve supply)
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9
Q

Early treatment with corticosteroids is recommended, within ____ hours of symptom onset = max benefit

A

72

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10
Q

What corticosteroid is recommended?

A

oral prednisone

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11
Q

Do we give corticosteroids to children with bell palsy?

A

No - risk of incomplete recovery from Bell palsy is very small & there is no benefit from corticosteroid therapy

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12
Q

Which antivirals may be used?

A
  • acyclovir
  • famciclovir
  • valacyclovir
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13
Q

Should antivirals be used alone for bell palsy?

A

No - when used alone, they provide no benefit over placebo

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14
Q

Can antivirals be added to corticosteroid therapy?

A

Yes - whether antivirals add additional benefit to corticosteroids is controversial, but because s/e of antivirals is minimal, they can be offered to be added to corticosteroid therapy, esp for those who have severe case of bell palsy or who are immunocompromised

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15
Q

What do we do for pregnancy?

A
  • supportive care, most recover spontaneously
  • corticosteroids can be used (consider risk vs benefit)
  • the effects of corticosteroids on the fetus is unclear
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16
Q

No good evidence for prednisone if started > ___ days after symptom onset

A

7

17
Q

What is usual dose for prednisone for bell palsy?

A

60mg x 5 days, then taper x 5 days
(total of at least 450 mg)

*taper for short term corticosteroids not necessary but still done in practise

18
Q

s/e of antivirals?

A

headache, nausea

19
Q

s/e of prednisone?

A

GI upset, hyperglycemia, sodium and fluid retention, hypokalemia, hypocalcemia

20
Q

What are risk factors for Bell palsy?

A

smoking, HTN, diabetes, pregnancy

21
Q

What are risk factors for Guillain-Barre Syndrome?

A

infections, vaccinations, surgery, male gender, older age and Hodgkin’s Lymphoma

22
Q

Is there a cure for Guillain-Barre Syndrome?

A

No - supportive care and treatment do not cure it

23
Q

What is the Tx option for Guillain-Barre Syndrome for those not recovering within 4 weeks of symptom onset?

A

-plasma exchange
or
-IVIG

24
Q

s/e of plasma exchange?

A

hypotension and sepsis

25
Q

describe plasma exchange

A

treatment is performed over 8-10 days, may be required 4-6 times, and it removes blood and other immune cells

26
Q

s/e of high dose immunoglobulin ?

A

aseptic meningitis