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[Otitis externa maligna and cranial neuropathy].

R Reñé1, A Mas, C M Villabona

  • 1Sección de Neurología, Otorrinolaringología, Hospital de Son Dureta, Palma de Mallorca.

Neurologia (Barcelona, Spain)
|August 1, 1990
PubMed
Summary
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Malignant external otitis (MEO), a Pseudomonas aeruginosa infection, often affects diabetics and can lead to cranial nerve damage. Early diagnosis and treatment are crucial for better outcomes and preventing recurrence.

Area of Science:

  • Infectious Diseases
  • Otolaryngology
  • Neurology

Context:

  • Malignant external otitis (MEO) is a severe Pseudomonas aeruginosa infection of the external auditory canal.
  • It commonly affects individuals with diabetes mellitus and can spread to the cranial base.
  • MEO is associated with significant morbidity, including cranial neuropathies and high mortality rates.

Purpose:

  • To report the clinical features, diagnostic procedures, evolution, and therapy of eight patients with MEO.
  • To highlight the association between MEO and cranial neuropathy.
  • To discuss the importance of early diagnosis and treatment in managing MEO.

Summary:

  • Eight patients with MEO were analyzed, seven experiencing cranial neuropathy.
  • Common symptoms included otalgia, otorrhea, and headache, with facial palsy in six patients.

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  • Pseudomonas aeruginosa was consistently cultured; imaging (99Tc, 67Ga scintigraphy, CT) aided diagnosis and staging.

    • Impact:

    • Cranial neuropathy is a significant indicator of poor prognosis in MEO.
    • Effective therapeutic strategies, including antibiotic combinations, are essential.
    • Early detection and intervention are critical to prevent disease extension, recurrence, and reduce mortality.