H60.22

Clinical Causes: Persistent bacterial infection, most commonly by Pseudomonas aeruginosa Compromised immune system, especially in individuals with diabetes Trauma or minor injuries to the ear canal Chronic external ear infections that have not been adequately treated Use of contaminated or unclean hearing aids or ear-drying equipment

Key Symptoms: Severe pain in the affected (left) ear that may radiate to the face or neck Swelling and redness around the ear canal Drainage of pus or other fluids from the ear Feeling of fullness or blockage in the ear Hearing loss in the affected ear Fever, chills, or malaise indicating systemic infection Tenderness when touching or manipulating the ear or surrounding area Skin ulceration or tissue necrosis in advanced cases

Diagnosis Path: Healthcare professionals rely on a combination of patient history, physical examination, and diagnostic tests to confirm malignant otitis externa. These may include: - Otoscopic examination to observe swelling, redness, or tissue damage in the ear canal. - Imaging studies such as CT scans or MRI to assess the extent of bone involvement and detect osteomyelitis. - Microbiological cultures from ear swabs to identify the causative bacteria and determine antibiotic sensitivities. - Blood tests to evaluate infection markers and overall health status.

Treatment Protocols: Treating malignant otitis externa is a complex process that typically involves a multidisciplinary approach, mainly focusing on eradicating the infection and preventing its spread. Treatment options include: - **Antibiotic Therapy:** Intravenous antibiotics targeting Pseudomonas aeruginosa are often required, sometimes for several weeks. - **Surgical Intervention:** Debridement or removal of necrotic tissue may be necessary in advanced cases to facilitate healing. - **Management of Underlying Conditions:** Strict control of blood sugar levels in diabetic patients can improve outcomes. - **Supportive Care:** Pain management, ear cleaning, and monitoring for complications are essential components. - **Follow-up:** Regular imaging and clinical assessments are crucial to ensure resolution and prevent recurrence.