Aeroallergen sensitization influences quality of life and comorbidities in patients with nasal polyposis.

BACKGROUND: Nasal polyposis (NP) is a chronic inflammatory disease of unknown etiology that impairs quality of life (QoL). The role of atopy in NP is not established. The aim of this study was to describe the clinical characteristics and QoL in a broad sample of patients with NP and to evaluate the influence of allergy on this disease. METHODS: A multicenter, observational, cross-sectional study was conducted in 67 allergy units in Spain. NP and nonsteroidal anti-inflammatory drug (NSAID) hypersensitivity were diagnosed following EP(3)OS guidelines. Rhinitis and asthma were classified following Allergic Rhinitis and Its Impact on Asthma and the Global Initiative for Asthma guidelines, respectively. Skin tests with a battery of aeroallergens were performed on all patients. A visual analog scale (VAS) and Short-Form 12 (SF-12) and 31-item Rhinosinusitis Outcome Measure (RSOM 31) questionnaires were completed by all the patients. RESULTS: Of the 671 patients included, 611 were evaluable. Mean age was 46 years and 50% of patients were men. Also, 50% were atopic. Asthma was present in 66% of patients and NSAID hypersensitivity was present in 26%. The most frequent symptoms were nasal congestion and rhinorrhea. Mean value of VAS was 58.6. Global health and bodily pain were the items most frequently identified in the SF-12 questionnaire and nasal and ocular symptoms in the RSOM-31 questionnaire. There was a good correlation between VAS score and QoL (p < 0.0001). Rhinitis was more severe in nonallergic patients. Asthma was more frequent in atopic patients, whereas ASA triad was more frequent in nonatopic patients. Atopic patients showed higher VAS scores and worse QoL. CONCLUSION: Atopic NP patients showed worse QoL, higher incidence of asthma and a less severe form of rhinitis than non-atopic patients.

Epidemiology of allergic rhinitis caused by grass pollen or house-dust mites in Spain.

BACKGROUND: Although the prevalence of allergic rhinitis (AR) is increasing, relatively little is known about patient characteristics in Spain. The aim of this study was to investigate the clinical profile and therapeutic strategies in patients attending Spanish specialists for AR caused by grass pollen or house-dust mites (HDMs). METHODS: This was a multicenter cross-sectional epidemiological study of consecutive patients aged ≥5 years with confirmed diagnosis of AR caused by grass pollen or HDMs attending allergy specialists throughout Spain. Demographic and clinical data and information on treatment were collected. RESULTS: Data from 1043 patients were analyzed (524 with grass pollen allergy and 519 with HDM allergy; mean age, 27.1 years). Three-quarters had persistent AR as per the Allergic Rhinitis and Its Impact on Asthma (ARIA) definition, with disease duration of >2 years in 94.3% of those with pollen allergy and 85.5% of those with HDM allergy. Approximately 38% had concurrent asthma. Over one-half of the patients were considered to have gotten worse since the first onset of symptoms. In total, 51.5% did not achieve good disease control with pharmacotherapy and 47.7% were treated with immunotherapy (52.2% of HDM allergic patients and 43.2% of grass pollen-allergic patients). CONCLUSION: The duration of AR in patients attended for the first time by specialists is long and, in general, the disease does not improve over time and is often not well controlled with pharmacologic interventions. Less than one-half of patients receive allergen-specific immunotherapy that is more often prescribed in HDM allergy.