Facial nerve paralysis: Difference between revisions

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  | Caption        = Moche. Culture Representation of Facial Paralysis. 300 A.D. Larco Museum Collection, Lima, Peru.
  | Caption        = Moche. Culture Representation of Facial Paralysis. 300 A.D. Larco Museum Collection, Lima, Peru.
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{{CMG}}
{{Facial nerve paralysis}}
{{Facial nerve paralysis}}
{{CMG}}; {{GCC}}


==Overview==
==[[Facial nerve paralysis overview|Overview]]==


'''Facial nerve paralysis''' and [[Bell's Palsy|Bell's palsy]] is due to a loss of voluntary movement of the muscles on one side of the face due to abnormal function of the facial nerve(s). A Peripheral palsy affects all ipsilateral muscles of facial expression (paralysis results on the entire ipsilateral side). A supranuclear palsy involves the lower part of the face.
==[[Facial nerve paralysis historical perspective|Historical Perspective]]==


'''Facial nerve paralysis''' is a common problem that involves the [[paralysis]] of any structures innervated by the [[facial nerve]]. The pathway of the facial nerve is long and relatively convoluted, and so there are a number of causes that may result in facial nerve paralysis. The most common is [[Bell's palsy]], an [[idiopathic]] disease that may only be diagnosed by exclusion.
==[[Facial nerve paralysis classification|Classification]]==


A thorough [[medical history]] and [[physical examination]] are the first steps in making a diagnosis.
==[[Facial nerve paralysis pathophysiology|Pathophysiology]]==


During the '''physical examination''', a distinction must first be made between paralysis and [[paresis]] (incomplete paralysis). Not surprisingly, paralysis is far more serious and requires immediate treatment. It must also be determined whether the [[forehead]] is involved in the motor defect or not. This is usually accomplished by assessing how well a patient can raise her [[eyebrow]]s. The question is an important one because it helps determine if the lesion is in the [[upper motor neuron]] component of the facial nerve, or in its [[lower motor neuron]] component.
==[[Facial nerve paralysis causes|Causes]]==


Laboratory investigations include an [[audiogram]], [[nerve conduction study|nerve conduction studies]] ([[Electroneuronography|ENoG]]), [[computed tomography]] (CT) or [[MRI|magnetic resonance]] (MR) imaging.
==[[Facial nerve paralysis differential diagnosis|Differentiating Facial nerve paralysis from other Diseases]]==


== Laboratory Findings ==  
==[[Facial nerve paralysis epidemiology and demographics|Epidemiology and Demographics]]==


==[[Facial nerve paralysis risk factors|Risk Factors]]==


=== MRI and CT ===
==[[Facial nerve paralysis natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
* [[MRI]] and [[CT scan]] for supranuclear palsy


== Pharmacotherapy ==
==Diagnosis==
* Corticosteroids and IV acyclovir for [[Bell's Palsy|Bell's palsy]]


== References ==
[[Facial nerve paralysis history and symptoms|History and Symptoms ]] | [[ Facial nerve paralysis physical examination|Physical Examination]] | [[Facial nerve paralysis laboratory findings|Laboratory Findings]] | [[Facial nerve paralysis other imaging findings|Other Imaging Findings]] | [[Facial nerve paralysis other diagnostic studies|Other Diagnostic Studies]]
{{reflist|2}}


==Additional Resources==
==Treatment==
* [http://www.med.uwo.ca/UME/Diane/Year2Postings2004-2005/Trimester%202/CNS/AcuteFacialParalysisPowerpointDrParnes.ppt Acute facial nerve paralysis] - Powerpoint slides from a lecture presented to second year medical school students at the [http://www.uwo.ca/ University of Western Ontario] by Dr. Lorne Parnes on 19 November 2004. These notes are licensed under the FDL.
[[Facial nerve paralysis medical therapy|Medical Therapy]] | [[Facial nerve paralysis surgery |Surgery]] | [[Facial nerve paralysis primary prevention|Primary Prevention]] |[[Facial nerve paralysis secondary prevention|Secondary Prevention]] | [[Facial nerve paralysis cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Facial nerve paralysis future or investigational therapies|Future or Investigational Therapies]]
* [http://www.med.uwo.ca/UME/Diane/Year2Postings2004-2005/Trimester%202/CNS/AcuteFacialNerveParalysisDrParnes.pdf Acute facial nerve paralysis] - Notes from a lecture presented to second year medical school students at the [http://www.uwo.ca/ University of Western Ontario] by Dr. Lorne Parnes on 19 November 2004. These notes are licensed under the FDL.
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== Acknowledgements ==
The content on this page was first contributed by


List of contributors:
==Case Studies==
 
[[Facial nerve paralysis case study one|Case #1]]
== Suggested Reading and Key General References ==
 
== Suggested Links and Web Resources ==
 
== For Patients ==
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[[Category:Oral and maxillofacial surgery]]
[[Category:Oral and maxillofacial surgery]]
[[Category:Otolaryngology]]
[[Category:Otolaryngology]]
[[de:Fazialislähmung]]
[[hr:Kljenuti ličnog živca]]
[[no:Facialisparese]]




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Latest revision as of 03:28, 29 July 2013

Facial nerve paralysis
Moche. Culture Representation of Facial Paralysis. 300 A.D. Larco Museum Collection, Lima, Peru.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Facial nerve paralysis Microchapters

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Overview

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Risk Factors

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Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

CT

MRI

Echocardiography or Ultrasound

Other Imaging Findings

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Treatment

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Cost-Effectiveness of Therapy

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Case Studies

Case #1

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[2]

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Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Facial nerve paralysis from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Primary Prevention |Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case #1


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