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Efficacy of Early Treatment of Bell’s Palsy With Oral Acyclovir and Prednisolone. Otology & Neurotology 24:948-951, 2003, Nov Naohito Hato, Shuichi Matsumoto, Hisanobu Kisaki, etc.
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Efficacy of Early Treatment of Bell’s Palsy With Oral Acyclovir and Prednisolone Otology & Neurotology 24:948-951, 2003, Nov Naohito Hato, Shuichi Matsumoto, Hisanobu Kisaki, etc
To investigate the therapeutic effects of acyclovir and prednisolone in relation to the timing of treatment in Bell’s palsy.
Bell’s Palsy • Idiopathic • Peripheral facial palsy • Sudden onset • HSV Reactivation • VZV Reactivation
Bell’s Palsy • > 10 % patients are unable to recover normal facial movement after conventional treatment • Acyclovir therapy has been evaluated in some trials • Correlation between the timing of treatment and the recovery function
Patients • Oct 1986 ~ Dec 2000 • Bell’s palsy: without CNS disorders, neoplasms, otits media, trauma or herpes zoster oticus • 1023 patients
Patient selection • Severe, with Yanagihara score < 20 • Begin treatment within 7 days, no initial Tx • > 6 months F/U, or complete recovery • No systemic disease, no contraindication of steroid use • Only medication, no surgical intervention
Drug Dosage • Adult: Acyclovir 2000mg/d x 7days Prednisolone 1 mg/kg per day • Pediatric patients: Acyclovir 80mg/kg per day x 5days Prednisolone 1 mg/kg per day
Acyclovir is less effective later after onset • Acyclovir affects only replicating viruses • Acyclovir is unable to destroy viruses that have already relpicated
Conclusion • Early diagnosis and treatment within 3 days of the onset of paralysis are necessary for maximal efficacy of combined acyclovir and prednisolone therapy for Bell's palsy.