Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

Benarab-Boucherit, Yasmina; Mehdioui, H.; Nedjar, F.; Delpierre, S.; Bouchaïr, N.; Aberkane, Abdelhamid

doi:10.3109/02770903.2011.578315

Cited by 27 publications

(23 citation statements)

References 27 publications

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“…De Baets et al 7 found an EIB prevalence of 8.5% in girls and 6.4% in boys, while Busquets et al 9 also reported a higher prevalence of EIB among girls (13%) than boys (9%). In contrast, other studies did not reveal any gender differences 10 20…”

Section: Discussionmentioning

confidence: 63%

“…The prevalence of EIB among 10–12-year-old children in Algeria was 16.1% when the 6 min free-running test was used and EIB was defined as a decrease of ≥15% in peak expiratory flow rate 10. Using the same exercise protocol for investigating 13–14-year-old adolescents, Busquets et al 9 found a prevalence of 11%, while De Baets et al 7 found a prevalence of 7.4% among primary school children.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence of exercise-induced bronchoconstriction and exercise-induced laryngeal obstruction in a general adolescent population

Johansson

Norlander

Berglund³

et al. 2014

Thorax

198

202

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Section: Discussionmentioning

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Prevalence of exercise-induced bronchoconstriction and exercise-induced laryngeal obstruction in a general adolescent population

Johansson

Norlander

Berglund³

et al. 2014

Thorax

198

202

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“…The first visit consisted of an interview about asthma, medication, measurements of height, weight, fractional exhaled nitric oxide (FeNO) and venous blood samples for analyses of Immunoglobulin E (IgE) sensitization and eosinophil cationic protein (ECP). The second visit (at an average of 12 (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) days later (median (interquartile range)) consisted of a standardized exercise challenge test on a treadmill with dry-air inhalation to detect EIB. 5 Ethical approval was obtained from the ethics review board in Uppsala, Sweden (Dnr 2011/413).…”

Section: Methodsmentioning

confidence: 99%

“…[4][5][6] Some studies have reported a higher prevalence in girls than in boys, 7,8 while others have not revealed any gender differences. 9,10 Exercise test is recommended to confirm EIB as exercise-induced symptoms have poor predictive value for EIB. 7,11,12 Guidelines from the European Respiratory Society (ERS) 13 and the American Thoracic Society (ATS) 14 and the recent EIB clinical practice guideline from the ATS recommend laboratory exercise testing, that is, a standardized exercise-challenge test.…”

Section: Introductionmentioning

confidence: 99%

Exercise test using dry air in random adolescents: Temporal profile and predictors of bronchoconstriction

et al. 2015

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Background and objective: Guidelines recommend exercise tests using dry air to diagnose exerciseinduced bronchoconstriction (EIB). Lung function changes subsequent to these tests have not been investigated in a general adolescent population, and it remains unknown whether signs of airway inflammation, measured using exhaled nitric oxide (FeNO), can predict a positive response. The aim of this study was to investigate the temporal aspect of decline in forced expiratory volume in 1 s (FEV1) after an exercise test using dry air, and to investigate predictors of EIB. Methods: From a cross-sectional study on adolescents aged 13-15 years (n = 3838), a random subsample of 146 adolescents (99 with and 47 without self-reported exercise-induced dyspnoea) underwent standardized treadmill exercise tests for EIB while breathing dry air. Results: Of the adolescents, 34% had a positive EIB test (decline of ≥10% in FEV1 from baseline) within 30 min. Of the subjects with EIB, 53% showed the greatest decline in FEV1 at 5 to 10 min (mean decline 18.5%), and the remaining 47% of the subjects showed the greatest decline at 15 to 30 min (mean decline 18.9%) after exercise. Increased FeNO (>20 ppb), female gender and self-reported exercise-induced dyspnoea were independently associated with a positive EIB test. Conclusion: When assessing general adolescents for EIB with exercise test using dry air, there is a temporal variation in the greatest FEV1 decline after exercise. Therefore, lung function should be measured for at least 30 min after the exercise. Increased FeNO, female gender and self-reported exercise-induced dyspnoea can be predictors of a positive EIB test.

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“…In fact, a recent study conducted in the city of Annaba on 286 (asthmatic and non-asthmatic) schoolchildren aged 10-12 years has demonstrated that the characteristics of a high bronchial hyperresponsiveness could be facilitated by the polluted environment of the city (Benarab-Boucherit et al, 2011). Furthermore, in the clinical-biological study published by Boumendjel in 2012, exposure to airborne allergens was approached via the data of a questionnaire, without the visit and exploration of the patient's home environment.…”

Section: Introductionmentioning

confidence: 99%

Indoor Aeroallergens in Asthmatic Pediatric Population in Annaba (Algeria)

Meharzi

Mansouri

Chekchaki

et al. 2017

Aerosol Air Qual. Res.

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The aim of the present study is to highlight the kind of indoor aeroallergens and assess their role in asthma severity in children from Annaba city (Algeria). Our study concerned 68 asthmatic children and 50 healthy children. All children's blood samples were obtained to determine biological parameters, followed by home visit to these children to assess meteorological parameters and fungal exposure. It was found that the asthma severity was associated with eosinophilia (χ 2 , p = 0.01), rate of total IgE (χ 2 , p < 0.001) and sensitization to indoor aeroallergens. This association between the severity of the disease and sensitization was strengthened with the presence of mites (χ 2 , p < 0.01) and pets, namely cats (p < 0.001). Moreover, all houses of asthmatic children contain fungal spores, which were also associated with the sensitization to fungi (χ 2 , p < 0.001). The average indoor temperature and humidity in the houses of asthmatic children represent favorable conditions for the growth of mold and development of mites, whose presence, especially Cladosporium and Alternaria, was associated with sensitization to fungi and severity of asthma. The strongest sensitization was found with dust mites (Dermatophagoides pteronyssinus, Der p1 (d1) and Dermatophagoides farinae, Der f2 (d2)) which is closely associated with asthma severity.

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Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

Abstract: These features of a fairly high bronchial hyperresponsiveness could be facilitated by the polluted environment of the city.

Cited by 27 publications

References 27 publications

Prevalence of exercise-induced bronchoconstriction and exercise-induced laryngeal obstruction in a general adolescent population

Prevalence of exercise-induced bronchoconstriction and exercise-induced laryngeal obstruction in a general adolescent population

Exercise test using dry air in random adolescents: Temporal profile and predictors of bronchoconstriction

Indoor Aeroallergens in Asthmatic Pediatric Population in Annaba (Algeria)

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