What is the treatment for malignant otitis externa (also known as necrotizing external otitis) in patients with Diabetes Mellitus (DM)?

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Last updated: February 13, 2025View editorial policy

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From the Research

Treatment Overview

The treatment for malignant otitis externa (MOE) in patients with Diabetes Mellitus (DM) involves a combination of measures to control the infection and manage the underlying diabetes. The key components of treatment include:

  • Controlling diabetes mellitus 1, 2, 3, 4, 5
  • Administering proper antibiotic therapy to fight the infection 1, 2, 3, 4, 5
  • Debridement of necrotic tissue 1, 2
  • Aggressive surgical management in some cases 1, 2, 5
  • Hyperbaric oxygen therapy for patients with facial nerve palsy 1, 5

Antibiotic Therapy

The most common pathogen responsible for MOE is Pseudomonas aeruginosa 1, 2, 4, 5. Therefore, antibiotic therapy should be targeted against this bacterium.

Surgical Management

Surgical intervention may be necessary in cases where the disease is resistant to medical therapy or in patients with complications such as facial nerve palsy 1, 2, 5.

Monitoring and Prognosis

The response to therapy can be monitored through normalization of erythrocyte sedimentation rate, control of diabetes mellitus, and improvement of computed tomography and radioisotope scanning 1. The presence of certain factors, such as diabetes, facial nerve palsy, positive CT scan, and age above 70, can predict poor outcome and highlights the need for prolonged, vigorous treatment 5.

References

Research

Malignant otitis externa.

The Journal of craniofacial surgery, 2012

Research

Complicated necrotizing otitis externa.

American journal of otolaryngology, 2013

Research

Malignant external otitis: Factors predicting patient outcomes.

American journal of otolaryngology, 2016

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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