The Science Journal of the American Association for Respiratory Care

2006 OPEN FORUM Abstracts

THE PREVALENCE OF ASTHMA AMONG ALLERGIC RHINITIS USING PEAK EXPIRATORY FLOW

Dr Mohammed Herrag, Dr Fouad Nia, Dr Hassan Essbai. Pulmonology- allergology Ibn sina university hospital, Rabat Morocco,

RATIONALE:: We aimed to study atopic status, prevalence of asthma and the benefit of using peak expiratory flow (PEF) follow-up in the diagnosis of asthma at allergic rhinitis (AR)patients.

Methods: We examined 160 (43%male, 72%female, mean age of 32 years) all AR patients had never been assessed for asthma. Their allergic status determined by skin prick tests. All of the subjects filled a questionnaire for presence of asthma like symptoms. Pulmonary function tests (PFT) and 2 weeks PEF measurements (two times daily) were determined for the patients who defined asthma like symptoms.

Results: Positive skin prick tests to grass were present at 71 patients, to tree at 51 patients, to mite at 46 patients and to epidermal mixture at 26 patients (79.8%, 57.3%, 51.7% and 29.2% respectively.) Nasal polyps were present in 25 AR patients (28.1%). 36 subjects (41%) defined asthma symptoms in their questionnaires. PFTs results of these 36 subjects were; 4 obstructive (11%), 32 normal (89%). 32 subjects who defined asthma symptoms and had normal PFT values, underwent 15 days PEF follow-up. 16 (50%) subjects had 20% diurnal variable positive PEF follow-up. 16 (+) PEF patients defined reduced in their respiratory symptoms after a 3 month low dose inhaler steroid therapy.

Conclusions: AR and asthma often coexist in the same patients, even though PFTs had been detected normal, allergic rhinitis patients should undergo PEF follow-up for the determination of asthma and creation of better strategies for the integral treatment.

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