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November 27, 2012; 79 (22) Special Article

Evidence-based guideline update: Steroids and antivirals for Bell palsy

Report of the Guideline Development Subcommittee of the American Academy of Neurology

Gary S. Gronseth, Remia Paduga
First published November 7, 2012, DOI: https://doi.org/10.1212/WNL.0b013e318275978c
Gary S. Gronseth
From the Department of Neurology, University of Kansas Medical Center, Kansas City.
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Remia Paduga
From the Department of Neurology, University of Kansas Medical Center, Kansas City.
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Evidence-based guideline update: Steroids and antivirals for Bell palsy
Report of the Guideline Development Subcommittee of the American Academy of Neurology
Gary S. Gronseth, Remia Paduga
Neurology Nov 2012, 79 (22) 2209-2213; DOI: 10.1212/WNL.0b013e318275978c

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Abstract

Objective: To review evidence published since the 2001 American Academy of Neurology (AAN) practice parameter regarding the effectiveness, safety, and tolerability of steroids and antiviral agents for Bell palsy.

Methods: We searched Medline and the Cochrane Database of Controlled Clinical Trials for studies published since January 2000 that compared facial functional outcomes in patients with Bell palsy receiving steroids/antivirals with patients not receiving these medications. We graded each study (Class I–IV) using the AAN therapeutic classification of evidence scheme. We compared the proportion of patients recovering facial function in the treated group with the proportion of patients recovering facial function in the control group.

Results: Nine studies published since June 2000 on patients with Bell palsy receiving steroids/antiviral agents were identified. Two of these studies were rated Class I because of high methodologic quality.

Conclusions and Recommendations: For patients with new-onset Bell palsy, steroids are highly likely to be effective and should be offered to increase the probability of recovery of facial nerve function (2 Class I studies, Level A) (risk difference 12.8%–15%). For patients with new-onset Bell palsy, antiviral agents in combination with steroids do not increase the probability of facial functional recovery by >7%. Because of the possibility of a modest increase in recovery, patients might be offered antivirals (in addition to steroids) (Level C). Patients offered antivirals should be counseled that a benefit from antivirals has not been established, and, if there is a benefit, it is likely that it is modest at best.

Glossary

AAN=
American Academy of Neurology;
AE=
adverse event;
CI=
confidence interval;
NNT=
number needed to treat;
RD=
risk difference

Footnotes

  • Approved by the Guideline Development Subcommittee on January 21, 2012; by the Practice Committee on May 14, 2012; and by the AAN Board of Directors on August 21, 2012.

  • Study funding: This guideline was developed with financial support from the American Academy of Neurology. None of the authors received reimbursement, honoraria, or stipends for their participation in development of this guideline.

  • Go to Neurology.org for full disclosures. Disclosures deemed relevant by the authors, if any, are provided at the end of this article.

  • Supplemental data at www.neurology.org

  • Received May 15, 2012.
  • Accepted August 21, 2012.
  • © 2012 American Academy of Neurology
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