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Chronic Pharyngitis

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

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Endotyping in Chronic Rhinosinusitis-An EAACI Task Force Report.

Sanna Toppila-Salmi^1,2,3, Sietze Reitsma⁴, Valérie Hox⁵

¹Department of Otorhinolaryngology, University of Eastern Finland, Kuopio, Finland.

|December 6, 2024

Summary

Chronic rhinosinusitis (CRS) involves sinonasal symptoms lasting over 12 weeks. Understanding CRS endotypes is crucial for better diagnosis and treatment, though research gaps remain.

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Area of Science:

Immunology
Otorhinolaryngology
Pathogenesis Research

Background:

Chronic rhinosinusitis (CRS) is defined by sinonasal symptoms persisting for at least 12 weeks.
CRS presents as two phenotypes: CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP).
Current understanding suggests CRS pathogenesis involves host-environmental interactions at the mucosal surface, driving inflammation.

Purpose of the Study:

To provide an updated review of current knowledge regarding CRS endotypes.
To highlight the role of genetic and epigenetic variations in CRS pathomechanisms.
To discuss the implications of endotyping for predicting, diagnosing, and treating CRS.

Main Methods:

Literature review synthesizing current research on CRS endotypes.
Analysis of the interplay between host immunity, environmental factors, and sinonasal inflammation.
Examination of the limitations of endotyping in clinical practice.

Main Results:

Diverse inflammatory mechanisms in CRS are driven by dysfunctional host-environmental interactions.
Genetic and epigenetic factors significantly influence the mucosal immune system's role in CRS.
Endotypes represent distinct mechanistic pathways underlying chronic sinonasal inflammation.

Conclusions:

Understanding CRS endotypes is essential for advancing diagnosis and treatment strategies.
Despite progress, significant unmet needs persist in endotype research for CRS.
Further research into endotypes is required to optimize the management of chronic rhinosinusitis.