Doxycycline treatment of otosyphilis with hearing loss.

ABSTRACT

OBJECTIVES: The recommended treatment of otosyphilis is intravenous penicillin therapy. The response rate varied between 23% and 31%. This treatment needs hospitalisation and is costly, inconvenient and time consuming. Oral doxycycline was tested for its efficacy in otosyphilis. METHOD: The authors reviewed 19 patients diagnosed as having otosyphilis with hearing loss at the outpatient unit between 2004 and 2008 by oral doxycycline 400 mg/day for 21 days. RESULTS: Of those enrolled patients, 12 patients were male and the mean age is 69.4 years. The hearing was improved in nine patients (47.3%) and the audiogram of seven patients (36.8%) showed improvement. There was no serious side effect of doxycycline. CONCLUSION: The data suggest that doxycycline may be an effective alternate regimen for otosyphilis.