[The incorporation of acyclovir into the treatment of peripheral paralysis. A study of 45 cases].
The relation between use of acyclovir and facial nerve palsy prognosis was studied. In a randomised study, steroids or steroids + acyclovir (oral doses for Bell's palsy, and intravenous doses for Ramsay Hunt's syndrome) were given to 45 patients with facial palsy. There was a significant reduction of sequelae in patients treated with acyclovir in the group of Ramsay Hunt's syndrome (n = 15) (p less than 0.05). There were no significant differences in the group of Bell's palsy (n = 30) (p greater than 0.05), treated with acyclovir compared with steroids.
We found no evidence that anti-viral agents have a beneficial effect on outcomes in Ramsay Hunt syndrome, despite their widespread use in this condition. The use of these drugs in patients with herpes zoster infections in other parts of the body might suggest that they have a role in herpes zoster oticus. As usual, the absence of positive evidence of benefit (or, in this case, the 'negative' result of one small, statistically under-powered study) does not necessarily indicate that antivirals are ineffective. However, these drugs are associated with a number of adverse effects and this must be taken into consideration when undertaking the requisite risk-benefit analysis before instigating treatment.