Chronic sinusitis

Area of Science:

• Otolaryngology
• Immunology
• Pathology

Background:

• Chronic sinusitis is a prevalent condition with significant healthcare costs.
• Understanding its pathogenesis is crucial for effective management.
• Key factors include anatomical issues, impaired mucociliary clearance, microbial agents, and inflammation.

Purpose of the Study:

• To review the factors contributing to the development and persistence of chronic sinusitis.
• To differentiate between infectious and noninfectious inflammatory processes.
• To present management strategies for chronic sinusitis and allergic fungal sinusitis.

Main Methods:

• Literature review of published studies on sinusitis pathogenesis and treatment.
• Analysis of inflammatory markers and cellular components in chronic sinusitis.
• Examination of medical management outcomes and development of treatment algorithms.

Main Results:

• Chronic sinusitis involves anatomical, mucociliary, microbial, and inflammatory factors.
• Noninfectious inflammation, particularly in chronic hyperplastic sinusitis with nasal polyposis, is characterized by eosinophils and IL-5 T lymphocytes.
• Allergic fungal sinusitis represents a distinct subtype requiring specific consideration.

Conclusions:

• Chronic sinusitis pathogenesis is multifactorial, involving distinct inflammatory pathways.
• Effective management requires distinguishing between infectious and noninfectious etiologies.
• Evidence-based algorithms can guide medical management for chronic sinusitis and allergic fungal sinusitis.