Facial Nerve Palsy in Malignant Otitis Externa Hospitalizations: Outcomes and Risk Factors.

Area of Science:

• Otolaryngology
• Neurology
• Infectious Diseases

Background:

• Malignant otitis externa (MOE) is a severe infection of the external auditory canal.
• Facial nerve palsy is a potential complication of MOE, impacting patient outcomes.

Purpose of the Study:

• To determine the incidence of facial nerve palsy in MOE hospitalizations.
• To compare patient demographics, comorbidities, and outcomes between MOE patients with and without facial nerve palsy.

Main Methods:

• Retrospective cross-sectional study using the National Inpatient Sample (NIS) from 2016-2022.
• Identified MOE hospitalizations via ICD-10 codes.
• Analyzed facial nerve palsy occurrence and associated factors.

Main Results:

• Facial nerve palsy occurred in 12.4% of 5,585 MOE inpatient stays.
• Palsy was associated with older age, male sex, and a higher burden of chronic conditions (e.g., diabetes, hypertension).
• Hospitalizations with palsy had longer stays and increased post-discharge care needs.

Conclusions:

• Facial nerve palsy is a significant complication in a notable proportion of MOE hospitalizations.
• The presence of facial nerve palsy signifies a more complex patient profile with greater comorbidity.
• These findings highlight the need for comprehensive management strategies for MOE patients with facial nerve palsy.