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Persistent allergic rhinitis includes different pathophysiologic types.

Giorgio Ciprandi1, Ignazio Cirillo, Angela Pistorio

  • 1Department of Internal Medicine, Azienda Ospedaliera Universitaria San Martino, Genoa, Italy. gio.cip@libero.it

The Laryngoscope
|December 20, 2007
PubMed
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Persistent allergic rhinitis (PER) symptoms and nasal airflow vary based on the specific allergen. Pollen allergies in PER patients lead to more severe symptoms and altered nasal function compared to perennial allergens.

Area of Science:

  • Immunology
  • Otorhinolaryngology
  • Allergology

Background:

  • Allergic rhinitis is classified as seasonal (SAR) or perennial (PAR).
  • The Intermittent (ITR) and Persistent (PER) classification was proposed by the Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines.
  • Individual allergens may cause distinct clinical and pathophysiologic features in allergic rhinitis.

Purpose of the Study:

  • To investigate if the type of causal allergen influences pathophysiologic differences in patients with persistent allergic rhinitis (PER).
  • To test the hypothesis that allergen type characterizes PER phenotypes.

Main Methods:

  • Prospective evaluation of 319 Italian Navy sailors with moderate-to-severe PER.
  • Methods included clinical assessment, skin prick testing, rhinomanometry, and nasal decongestion tests.

Related Experiment Videos

Main Results:

  • Patients with pollen allergy exhibited significantly more severe symptoms compared to those with perennial allergen sensitivity.
  • Pollen-allergic individuals demonstrated reduced nasal airflow and a heightened response to nasal decongestion.
  • Statistical significance was observed at P < .0001 for these differences.

Conclusions:

  • The study provides evidence that persistent allergic rhinitis (PER) presents with varying pathophysiologic patterns.
  • These patterns are influenced by the specific type of causal allergen.
  • Allergen type is a crucial factor in characterizing PER.