Chronic Rhinosinusitis in Children: Pathophysiology, Evaluation, and Medical Management

Area of Science:

• Pediatric Otolaryngology
• Allergy and Immunology
• Infectious Diseases

Background:

• Pediatric chronic rhinosinusitis (CRS) is a prevalent condition causing significant morbidity in children.
• Diagnosis is based on sinus symptoms persisting over 3 months despite medical treatment.
• Underlying causes include viral infections, allergies, and anatomical issues leading to osteomeatal complex obstruction.

Purpose of the Study:

• To review the differential diagnosis of pediatric CRS, encompassing various phenotypes and endotypes.
• To detail current and emerging treatment strategies for pediatric CRS.
• To provide an updated consensus on the prevalence and management of this condition in children.

Main Methods:

• Literature review of recent survey studies and clinical findings.
• Analysis of differential diagnoses including infectious, eosinophilic, allergic, and immunodeficiency-related conditions.
• Examination of established and novel therapeutic interventions.

Main Results:

• Pediatric CRS presents with diverse phenotypes and endotypes, complicating diagnosis and management.
• Key differential diagnoses include non-eosinophilic/infectious CRS, eosinophilic CRS with/without polyps, allergic fungal sinusitis, aspirin-exacerbated respiratory disease, primary immunodeficiency, and mucociliary clearance disorders.
• Current treatments are detailed, alongside emerging options like anti-immunoglobulin E, anti-interleukin-5, and anti-interleukin-4 receptor alpha therapies.

Conclusions:

• Accurate diagnosis of pediatric CRS requires consideration of multiple underlying factors and phenotypes.
• A comprehensive approach to management, incorporating both standard and novel therapies, is essential.
• Further research into emerging treatments holds promise for improved outcomes in pediatric CRS.