The distribution of sensitization to common aeroallergens in patients with
rhinitis and asthma in Şanlıurfa, Türkiye
Introduction
Sensitization to common environmental aeroallergens plays a
significant role in the pathogenesis and severity of asthma and allergic rhinitis.
Knowledge on the sensitization pattern helps allergen avoidance, prediction
of the severity of the disease, and use of specific immunotherapy for the most
common allergens. The distribution of sensitization to aeroallergens differs in
every region of Türkiye. In this study, it was aimed to investigate the allergen
sensitization profiles of patients with asthma and rhinitis in Şanlıurfa, which is
in Southeast Türkiye.
Materials and Methods
Patients with rhinitis and asthma who presented to
the outpatient clinic of adult immunology and allergy between April 2021-
2022 were retrospectively evaluated. Demographic information (age, sex),
rhinitis and asthma duration, location of residence, allergic and non-allergic
comorbidities, smoking history and skin prick test results were extracted from
medical records.
Results
A total of 472 skin prick tests were performed on patients (35.4%
males; 64.6% females), with a mean age of 33.8 years, and 120 (25.4%)
were negative for skin reaction. The frequency of sensitivity to allergens was:
grass (42.6%), cereal mixtures (41.5%), timothy grass (37.9%), cockroach
(37.3%), olive tree (35%), house dust mites (Dermatophagoides farinae
27.5%, Dermatophagoides pteronyssinus 20.8%). In patients with only
rhinitis (n= 305), the most frequent aeroallergen was pollen (grasses 43.6%;
cereal mixtures 43.3%; timothy grass 41.6%; olive pollen 37.4%). In patients
with asthma and rhinitis (n= 134), the most frequent aeroallergen was grass
(44.8%). In patients with only asthma (n= 33), the most frequent
aeroallergens were D. farinae (27.3%) and cockroach (27.3%).
Conclusion
The most frequently detected allergens in this study were pollen,
cockroach, and house dust mites, respectively. The findings revealed that
pollen was the most frequent aeroallergen in subjects with allergic rhinitis with
and without asthma. In patients with only asthma, the most frequent aeroallergen was house dust mites.