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.