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2000, Number 1

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Rev Inst Nal Enf Resp Mex 2000; 13 (1)

Airway obstruction in asthmatics patients associated to hair sprays use

Rico-Méndez FG, Huizar-Hernández V, Alba-Cabrera MD, Ochoa-Jiménez LG, Vargas MH

Language: Spanish
References: 21
Page: 18-22
PDF size: 169.56 Kb.


ABSTRACT

Background: Acute exposure to hair spray has been described to induce airway obstruction, especially in asthmatic subjects, but the effect on airway function caused by a chronic exposure is unknown. Methods: Spirometries were performed in 40 patients with established diagnosis of mild to moderate asthma and regular exposure to hair spray, and were compared with 40 asthmatic patients not regularly exposed to such aerosols. Results: A higher degree of airflow obstruction was found in asthma patients exposed to hair spray (FEV/FVC 63.1 ± 7.2%, χ ± SD), as compared with non-exposed asthmatics (80.3 ± 13.2%, p ‹ 10-8), which was observed both in men and women. Analyzed by frequencies, 82.5% of exposed and 37.5% of non-exposed patients showed airway obstruction (defined as FEV/FVC ‹ 80%), with odds ratio of 7.86 and confidence intervals at 95% of 2.53 to 25.87. Although always with greater obstruction, the exposed group showed no accelerated impairment of the FEV/FVC ratio through age. Conclusions: Regular exposure of asthmatic patients to hair spray significantly increased the airflow obstruction (without accelerating the long-term decline of FEV-1/FVC), and thus its use should be avoided or restricted in patients with asthma.


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