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Year : 1998  |  Volume : 1  |  Issue : 1  |  Page : 27-33

Prevalence of allergic rhinitis among people living in Riyadh: A hospital based clinical and allergological study

1 Security Forces Hospital, Riyadh, Saudi Arabia
2 King Saud University, Riyadh, Saudi Arabia

Correspondence Address:
M.D., F.R.C.S. Siraj M Zakzouk
Internal Security forces Hospital, Riyadh
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-8491.286853

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Two hundred fifty eight out of 403 adult patients with a clinical diagnosis of allergic rhinitis agreed to enter the study where clinical and allergological examination were carried out. Two hundred eleven were Saudis and 47 were non-Saudis living in Riyadh for the past 3 to 5 years who never had allergic symptoms while at theirrespective countries. The aims of this work were to study the prevalence of allergic rhinitis among patients attending ear, nose and throat clinic, to identify the common allergens found,the patients life style, nationality and periodicity of the attacks in relation to aerobiological study carried out in the kingdom A comprehensive clinical history using a questionnaire were taken from all patients. All patients were skin tested with a standard set of 25 allergens selected according to local data from aerobiological studies and dust sample analysis in Saudi Arabia. The standard skin-prick test was used. Forty eight patients with no rhinological disease were skin tested as acontrol group. Perennial symptoms were evident in 175 (68%) of the Saudi nationals while in expatriate only 12 cases (25.5%) showed perennial pattern and the rest were seasonal. Skin prick test (SPT) was positive in 176 (68.2%) to one or more of the skin test allergens. The common allergens were house dust mite, cat fur, cockroach,pollens i.e. Bermuda grass and chenopodia, acacia & rhizopus. The study showed that allergic rhinitis is common among Saudis and non-Saudis living in Riyadh. There is a definitive pattern of sensitivities influenced by imported flora. Cat sensitivity showed high prevalence due to increased presence of wild cat in the environment. Other environmental stimuli including temperature changes, odours, air conditioning, emotional upset and carpeting trigger the symptoms.

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