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Updated: Aug 14, 2026
Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
Abstract:
Malignant otitis externa represents a special form of inflammatory alteration of the external ear. The inflammation can spread to surrounding bones (temporal bone, skull base - to the foramen magnum), as well as to neighbouring tissue, such as the parotid gland, the temporo-mandibular joint and soft tissue near the skull base. Most patients are elderly, latent or manifest diabetics. The causative organism was always proved to be Pseudomonas aeruginosa. The disease is called "malignant" because of its high mortality rate. Decreasing this mortality is possible - as demonstrated in 6 patients - via early diagnosis, sufficient surgery, as well as local and systemic antibiotics.
Insights
Malignant otitis externa, a severe Pseudomonas aeruginosa infection, affects elderly diabetics and can spread to the skull base. Early diagnosis and treatment with antibiotics and surgery can reduce its high mortality rate.
Area of Science:
- Otolaryngology
- Infectious Diseases
- Oncology
Background:
- Malignant otitis externa (MOE) is a severe inflammatory condition affecting the external ear.
- It is characterized by the potential for extensive local spread to surrounding bone and tissues.
Observation:
- MOE primarily affects elderly patients, often with underlying diabetes mellitus.
- Pseudomonas aeruginosa is consistently identified as the causative pathogen in MOE cases.
- The disease's name reflects its historically high mortality rate.
Findings:
- Early diagnosis is crucial for effective management of malignant otitis externa.
- Sufficient surgical intervention, alongside local and systemic antibiotic therapy, is essential.
- A multidisciplinary approach demonstrated success in a cohort of 6 patients, reducing mortality.
Implications:
- Prompt identification and aggressive treatment can significantly improve outcomes for MOE patients.
- Understanding the risk factors, such as diabetes, aids in early detection.
- This approach offers a viable strategy to decrease the mortality associated with this aggressive infection.
