DR 911 Blog - Bell’s Palsy
October 24th, 2007
A new study published in the New England Journal of Medicine, Oct 17th 2007, demonstrated that early treatment with steroids, not acyclovir, provided a greater chance for a patient’s full recovery at 3 and 9 months.
Bell’s Palsy (idiopathic facial paralysis) usually resolves in the majority of cases, but up to 30% of patients afflicted continue to experience pain and associated facial paralysis.
Both steroids and antiviral medications are commonly utilized to treat the early presenting signs and symptoms of Bell’s Palsy. The effectiveness of the treatments alone or in combination remains unclear.
Researchers reported the results from a double-blind, randomized trial evaluating the effectiveness of steroids and acylovir in the early treatment of Bell’s Palsy. Adults who presented within the first 72 hours of symptoms were randomized to receive either prednisolone (50 mg/day) & acyclovir (2g/day) both or placebo for 10 consecutive days. The primary outcome measure was recovery of facial nerve function at both 3 and 9 months. Investigators also examined other outcomes including facial appearance, pain, along with quality of life.
Results of the study show that at both 3 and 9 months, recovery rates were significantly higher among patients randomized to prednisolone than among those who did not receive prednisolone. (83% vs 64% at 3 months, 94% vs 82% at 9 months, p<0.001) .
Recovery rates, however, were similar between patients randomized to acyclovir and those randomized to no acyclovir (85% vs 91% at 9 months (p=0.1). Acyclovir provided no additional benefit when taken together with prednisolone. There were no serious adverse effects of treatment noted in any group, according to the study authors.
DR 911 : This study provides clear evidence that prescribing steroids alone early in the course of Bell’s Palsy increase the chance of complete recovery by 9 months. Acyclovir, however demonstrated no benefit. It is important to note that these findings only apply to acyclovir, as described by many editorialists who reviewed the article. Other antivirals (including valcylovir) which have much greater absorption must be investigated before one can conclude that antivirals are not indicated in treatment of Bell’s Palsy.
References:
1. Sullivan FM et al. Early treatment with prednisolone or acyclovir in Bell’s Palsy. N Engl J Med 2007 Oct 18; 357:1598.
2. Gilden DH, Tyler KL. Bell’s Palsy-Is glucocorticoid treatment enough? N Engl J Med 2007. Oct 18; 357:1653.
