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    Antiviral Treatment of Bell's Palsy Based on Baseline Severity: A Systematic Review and Meta-analysis

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    Antiviral Treatment of Bells Palsy Based on Baseline Severity A Systematic Review and Meta-analysis.pdf (7.697Mb)
    Date
    2015-06
    Author
    Turgeon, Ricky D.
    Wilby, Kyle J.
    Ensom, Mary H.H.
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    Abstract
    PurposeWe conducted a systematic review with meta-analysis to evaluate the efficacy of antiviral agents on complete recovery of Bell's palsy. MethodsWe searched CENTRAL, Embase, MEDLINE, International Pharmaceutical Abstracts, and sources of unpublished literature to November 1, 2014. Primary and secondary outcomes were complete and satisfactory recovery, respectively. To evaluate statistical heterogeneity, we performed subgroup analysis of baseline severity of Bell's palsy and between-study sensitivity analyses based on risk of allocation and detection bias. ResultsThe 10 included randomized controlled trials (2419 patients; 807 with severe Bell's palsy at onset) had variable risk of bias, with 9 trials having a high risk of bias in at least 1 domain. Complete recovery was not statistically significantly greater with antiviral use versus no antiviral use in the random-effects meta-analysis of 6 trials (relative risk, 1.06; 95% confidence interval, 0.97-1.16; I2 = 65%). Conversely, random-effects meta-analysis of 9 trials showed a statistically significant difference in satisfactory recovery (relative risk, 1.10; 95% confidence interval, 1.02-1.18; I2 = 63%). Response to antiviral agents did not differ visually or statistically between patients with severe symptoms at baseline and those with milder disease (test for interaction, P = .11). Sensitivity analyses did not show a clear effect of bias on outcomes. ConclusionsAntiviral agents are not efficacious in increasing the proportion of patients with Bell's palsy who achieved complete recovery, regardless of baseline symptom severity.
    URI
    http://www.sciencedirect.com/science/article/pii/S0002934314012157
    DOI/handle
    http://dx.doi.org/10.1016/j.amjmed.2014.11.033
    http://hdl.handle.net/10576/5714
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    • Pharmacy Research [‎1426‎ items ]

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