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Oral ofloxacin as treatment of malignant external otitis: a study of 17 cases
1Department of Otolaryngology-Head and Neck Surgery, Beilinson Medical Center, Petah Tiqva, Israel.
Abstract:
Seventeen patients with malignant external otitis were treated with oral ofloxacin. Their mean age was 69 years. Seven of the patients were diabetic. Pseudomonas aeruginosa, sensitive to ofloxacin (Kirby-Bauer method, inhibition zone greater than or equal to 22 mm), was isolated from the external auditory canal in all patients. Ofloxacin (200 mg b.i.d.) was given to the patients for 12 to 39 days. Two patients also received additional parenteral antibiotic therapy. Subjective and objective improvement occurred in all patients during treatment, and complete resolution was documented in all patients, with one exception. Only one patient suffered recurrence 2 weeks after discontinuation of antimicrobial therapy. The results of our study suggest that oral ofloxacin is an effective treatment for malignant external otitis caused by Pseudomonas aeruginosa.
Insights
Oral ofloxacin effectively treats malignant external otitis caused by Pseudomonas aeruginosa. This study shows significant improvement and resolution in most patients, with a low recurrence rate for this serious ear infection.
Area of Science:
- Infectious Diseases
- Otolaryngology
- Pharmacology
Background:
- Malignant external otitis is a severe infection of the ear canal.
- Pseudomonas aeruginosa is a common pathogen in malignant external otitis.
- Effective treatment options are crucial for patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of oral ofloxacin in treating malignant external otitis.
- To assess the outcomes in patients with Pseudomonas aeruginosa infections.
Main Methods:
- Seventeen patients with malignant external otitis were treated with oral ofloxacin (200 mg b.i.d.).
- All isolates of Pseudomonas aeruginosa were sensitive to ofloxacin.
- Treatment duration ranged from 12 to 39 days.
Main Results:
- All patients showed subjective and objective improvement during treatment.
- Complete resolution was achieved in all but one patient.
- Only one patient experienced a recurrence after treatment completion.
Conclusions:
- Oral ofloxacin is an effective treatment for malignant external otitis caused by Pseudomonas aeruginosa.
- The drug demonstrates a favorable efficacy profile with a low recurrence rate.
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