Cat Allergen Sensitization Which Clinical Allergies Are Commonly Associated? A Retrospective Study (Saudi Arabia)

Background: Cat allergen sensitization (CAS) is common indoor
problem. Its prevalence is increasing worldwide. Other
indoor allergens are: mites, mold and cockroach.
Objective: To define the correlation between CAS and allergic
diseases (ADs) in Jeddah-Saudi.
Methods: A research conducted during 2020 in private clinic
(Jeddah – Saudi). Data were extracted retrospectively from
patient files. SIgE in vitro blood test results of positive CAS
for 110 patients were included. Additionally, positive sIgE
results of other inhalant allergens were taken. Furthermore,
clinical allergic diagnoses were extracted. All data were filled
in excel sheet. Afterward, five tables were concluded.
Results: Sample was 110 patients with positive CAS results.
Females were 60 (54%) while males were 50 (46%). Adult and
middle ages were the most common to have CAS: 37 (34%)
in age period between 30-40 years, 23 (21%) in age period
between 20-30 years. Commonest ADs associated with CAS
are allergic rhinitis and sinusitis as 59 (53%). 2nd common
group associated with CAS are: atopic dermatitis 25 (23%),
asthma 20 (18%), urticaria and angioedema 15 (14%). House
dust mites are the commonest inhalant allergens associated
with CAS: dermatophagoides farina (DF) 53 (48%), dermatophagoides
pteronyssinus (DP) 52 (47%), followed by dog 42
(38%), hoarse 40 (36%), cockroach, aspergillus 39 (35%), alternaria
38 (34%), cladosporium 35 (32%). Most sever allergen
associated with CAS is camel as 4.3 class, followed by DP 2.2,
cat, DF 2.1 and cockroach 2.

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