The efficacy of botulinum toxin for the treatment of trigeminal and postherpetic neuralgia: a systematic review with meta-analyses.

The efficacy of botulinum toxin for the treatment of trigeminal and postherpetic neuralgia: a systematic review with meta-analyses.

Oral Surg Oral Med Oral Pathol Oral Radiol. 2016 Jul;122(1):61-71

Authors: Shackleton T, Ram S, Black M, Ryder J, Clark GT, Enciso R

Abstract
OBJECTIVE: To evaluate the efficacy of a botulinum toxin type A (BoTN-A) in treating trigeminal neuralgia (TN) and postherpetic neuralgia (PHN).
STUDY DESIGN: Three databases were searched: Medline, Web of Science, and Cochrane Library. The search was restricted to English-language randomized, placebo-controlled trials. Three review authors evaluated the cases for risk of bias.
RESULTS: Six studies were eligible for inclusion. Pooled results showed a difference in post-treatment pain intensity of -3.009 (95% confidence interval -4.566 to -1.453; P < .001) in favor of BoTN-A compared with placebo in managing TN or PHN. Of the six studies, five had unclear risk of bias, and one showed high risk.
CONCLUSIONS: Although the studies had unclear or high risk of bias, moderate evidence regarding the efficacy of BoTN-A in treating TN and PHN was found. BoTN-A might be an alternative treatment to those patients who are either unable to manage their pain medically or would like adjunct therapy.

PMID: 27260275 [PubMed - in process]

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