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Bell Palsy

Daniel R. Matta, MD and Paul McFarlane, MBBS Reviewed 06/2022
 


BASICS

DESCRIPTION

An acute, usually unilateral peripheral facial nerve palsy. The etiology is largely idiopathic; however, many cases have been attributable to Herpes Simplex Virus (HSV) Type 1. An is...

DIAGNOSIS

The diagnosis of Bell palsy is based on a thorough history and examination. Labs and diagnostic images may be considered when other differentials are probable based on history and exam. 

HISTORY

TREATMENT

GENERAL MEASURES

  • Artificial tears should be used frequently to lubricate the cornea.

  • The ipsilateral eye should be patched or taped shut at night to avoid drying and infection.

MEDICATION

  • Recove...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Patient Monitoring

  • Start steroid treatment immediately and followed for 12 months.

  • Patients who do not recover complete facial nerve function should be referred to ...

REFERENCES

1
Hohman  MH, Hadlock  TA. Etiology, diagnosis, and management of facial palsy: 2000 patients at a facial nerve center. Laryngoscope.  2014;124(7) : E283 –E293....

ADDITIONAL READING

Reich SG. Bell's Palsy. Continuum (Minneap Minn). 2017 Apr;23(2, Selected Topics in Outpatient Neurology):447-466.   

SEE ALSO

Amyloidosis; Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2; Herpes Simplex; Herpes Zoster (Shingles); Lyme Disease; Sarcoidosis; Sjögren Syndrome 

CODES

ICD10

  • G51.0 Bell's palsy

SNOMED

  • 193093009 Bell's palsy

  • 12239621000119103 Bells palsy of left side of face

  • 12239661000119108 Bells palsy of right side of face

  • 46061007 Bell's phenomenon

CLINICAL PEARLS

  • Look closely at the voluntary movement on the upper part of the face on the affected side; in Bell palsy, all of the muscles are involved (weak or paralyzed), whereas in a stroke, the ...

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