Bell's palsy natural history, complications and prognosis

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Bell's palsy natural history, complications and prognosis On the Web

Most recent articles

Most cited articles

Review articles

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Powerpoint slides

Images

American Roentgen Ray Society Images of Bell's palsy natural history, complications and prognosis

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Bell's palsy natural history, complications and prognosis

CDC on Bell's palsy natural history, complications and prognosis

Bell's palsy natural history, complications and prognosis in the news

Blogs on Bell's palsy natural history, complications and prognosis

Directions to Hospitals Treating Psoriasis

Risk calculators and risk factors for Bell's palsy natural history, complications and prognosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

If left untreated, [#]% of patients with [disease name] may progress to develop [manifestation 1], [manifestation 2], and [manifestation 3].

OR

Common complications of [disease name] include [complication 1], [complication 2], and [complication 3].

OR

Prognosis is generally excellent/good/poor, and the 1/5/10-year mortality/survival rate of patients with [disease name] is approximately [#]%.

Natural History, Complications, and Prognosis

Natural History

Complications

  • Common complications of [disease name] include:
    • [Complication 1]
    • [Complication 2]
    • [Complication 3]

Prognosis

  • Prognosis is generally excellent/good/poor, and the 1/5/10-year mortality/survival rate of patients with [disease name] is approximately [#]%.
  • Depending on the extent of the [tumor/disease progression/etc.] at the time of diagnosis, the prognosis may vary. However, the prognosis is generally regarded as poor/good/excellent.
  • The presence of [characteristic of disease] is associated with a particularly [good/poor] prognosis among patients with [disease/malignancy].
  • [Subtype of disease/malignancy] is associated with the most favorable prognosis.
  • The prognosis varies with the [characteristic] of tumor; [subtype of disease/malignancy] have the most favorable prognosis.




Natural History, Complications and Prognosis

  • The House-Brackmann grading system was devised both as a clinical indicator of severity and also an objective record of progress.
  • Clinically incomplete lesions tend to recover.
  • The natural history without treatment was described in a study of 1011 patients in 1982:
  • 67% had incomplete paralysis, with 94% rate of return to normal function
  • 33% had complete paralysis, with 60% rate of return to normal function
  • By 3 weeks, 71% had complete recovery, 13% had slight sequelae , and 16% had residual weakness
  • Herpes zoster is associated with more severe paresis and worse prognosis compared with "idiopathic" Bell's palsy.
  • There is a favorable prognosis if some recovery is seen within the first 21 days of onset.
  • In severe lesions that recover, the outgrowth of new axons from the injury site may be disorganized and misdirected.
  • On blinking there is twitching of the angle of the mouth, and on smiling the eye may close or wink.
  • With misdirected autonomic fibers, a salivary stimulus may result in excess lacrimation, the syndrome of "crocodile tears."
  • Recurrent attacks on either the ipsilateral or contralateral side have been observed in 7 to 15% of patients.

References

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