Fusobacterium necrophorum as an Emerging Pathogen of Acute Mastoiditis

Area of Science:

• Pediatric infectious diseases
• Otolaryngology
• Microbiology

Background:

• Acute mastoiditis incidence is rising due to Fusobacterium necrophorum.
• Limited data exists on F. necrophorum mastoiditis in children.
• Study aimed to describe F. necrophorum mastoiditis characteristics and identify high-risk patients.

Purpose of the Study:

• To describe clinical and laboratory features of F. necrophorum mastoiditis in children.
• To identify risk factors and develop a predictive model for F. necrophorum infection.
• To aid in early diagnosis and management of F. necrophorum mastoiditis.

Main Methods:

• Retrospective analysis of electronic medical records (July 2011-December 2015).
• Included children diagnosed with acute mastoiditis.
• Stepwise logistic regression used to identify risk factors and build a predictive model.

Main Results:

• F. necrophorum identified in 13% of mastoiditis cases with an identifiable agent.
• Incidence of F. necrophorum mastoiditis increased sevenfold from 2012 to 2015.
• F. necrophorum infections presented unique clinical/laboratory features, often with complications requiring surgery.
• A predictive model identified high-risk patients based on sex, season, prior antibiotics, and CRP levels (AUC 0.929).

Conclusions:

• Clinicians must recognize the rising incidence of F. necrophorum mastoiditis.
• Consider anaerobic cultures and specific anaerobic coverage for high-risk pediatric patients.
• Early identification and targeted treatment are crucial for managing F. necrophorum mastoiditis complications.