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Malignant External Otitis: What the Diabetes Specialist Should Know-A Narrative Review
Christos Tsilivigkos1, Konstantinos Avramidis2, Eleftherios Ferekidis3
1First Department of Otolaryngology, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772, Athens, Greece. tsilivig@med.uoa.gr.
Aims:
Malignant external otitis (MEO) is a special type of external otitis associated with extensive inflammation and osteomyelitis. It is believed to originate from the external auditory meatus and advance regionally to the soft tissues and the bone, eventually involving the skull base. Pseudomonas aeruginosa and diabetes mellitus are factors commonly involved in the pathogenesis of MEO. Although its treatment has changed considerably during the last decades, morbidity and mortality of the disease remain high. Our aim was to review basic aspects of MEO, a disease unknown until 1968, which attracts great interest among Ears, Nose and Throat (ENT), diabetes and infectious diseases specialists.
Methods And Results:
In this narrative review we mainly include relevant papers written in English or with an English abstract. We searched PubMed and Google Scholar, using the keywords malignant external otitis, malignant otitis externa, necrotizing external otitis, skull base osteomyelitis, diabetes mellitus and surgery up to July 2022. Some of the most recent articles, with specific references to earlier articles and a book reference regarding the pathophysiology, diagnosis and treatment of MEO and its relationship to diabetes mellitus, were included.
Conclusion:
MEO is not an uncommon disease and is principally treated by ENT surgeons. Nevertheless, diabetes specialists should be aware of the disease presentation and management, since they will often encounter patients with undiagnosed MEO or will need to manage glucose levels in patients hospitalized with the disease.
Insights
Malignant external otitis (MEO), a severe infection, often involves skull base osteomyelitis and is linked to Pseudomonas aeruginosa and diabetes. Despite treatment advances, MEO remains a significant health concern requiring multidisciplinary awareness.
Area of Science:
- Otolaryngology
- Infectious Diseases
- Endocrinology
Background:
- Malignant external otitis (MEO) is a severe infection originating in the external auditory meatus, leading to extensive inflammation and osteomyelitis.
- Pathogenesis commonly involves Pseudomonas aeruginosa and diabetes mellitus, contributing to high morbidity and mortality.
- First described in 1968, MEO remains a condition of significant interest across multiple medical specialties.
Purpose of the Study:
- To review fundamental aspects of Malignant External Otitis (MEO).
- To highlight the disease's pathophysiology, diagnosis, and treatment, particularly its relationship with diabetes mellitus.
Main Methods:
- A narrative review of English-language literature was conducted.
- Searches were performed on PubMed and Google Scholar using keywords related to MEO, skull base osteomyelitis, and diabetes mellitus up to July 2022.
- Relevant recent articles and foundational references were included.
Main Results:
- Malignant external otitis (MEO) is a significant clinical entity primarily managed by Ear, Nose, and Throat (ENT) surgeons.
- The review synthesizes current knowledge on MEO, emphasizing its connection to diabetes mellitus.
Conclusions:
- Malignant external otitis (MEO) is not rare and requires awareness from diabetes specialists.
- Diabetes specialists may encounter undiagnosed MEO or manage glucose control in hospitalized MEO patients.
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