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[Malignant external otitis. Apropos of 7 recent cases]
1Département d'ORL et de chirurgie cervico-faciale, Hôpital Edouard-Herriot, Lyon.
Summary
Malignant external otitis diagnosis relies on radionuclide scanning and computed tomography. Fluoroquinolone antibiotics are the primary treatment, with radionuclide scanning crucial for monitoring healing and guiding antibiotic cessation.
Area of Science:
- Otolaryngology
- Infectious Diseases
- Radiology
Background:
- Malignant external otitis is a severe infection.
- Accurate diagnosis and effective treatment are critical.
Purpose of the Study:
- To describe diagnostic and treatment criteria for malignant external otitis.
- To evaluate the role of imaging and antibiotic therapy.
Main Methods:
- Case series of seven patients.
- Utilized bacteriologic analysis, radionuclide scanning, and computed tomography.
- Administered systemic fluoroquinolone antibiotic therapy.
Main Results:
- Radionuclide scanning is essential for diagnosis.
- Computed tomography offers the best anatomical imaging.
- Fluoroquinolones demonstrated efficacy against P. Aeruginosa with good bone penetration.
- Low mortality (1/7) and one case of skull base osteomyelitis.
Conclusions:
- Radionuclide scanning is vital for both diagnosis and assessing healing.
- Systemic fluoroquinolone therapy is the recommended treatment.
- Imaging is key to determining the cessation of antibiotic therapy.