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首页> 外文期刊>Occupational and environmental medicine >Two patients with occupational asthma who returned to work with dust respirators.
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Two patients with occupational asthma who returned to work with dust respirators.

机译：两名职业性哮喘患者恢复使用粉尘呼吸器工作。

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摘要

OBJECTIVES: To assess the efficacy of dust respirators in preventing asthma attacks in patients with occupational asthma (asthma induced by buckwheat flour or wheat flour). METHODS: The effect of the work environment was examined in two patients with occupational asthma with and without the use of a commercially available mask or a dust respirator. Pulmonary function tests were performed immediately before and after work and at 1 hourly intervals for 14 hours after returning to the hospital. RESULTS: In patient 1, environmental exposure resulted in no symptoms during and immediately after work, but coughing, wheezing, and dyspnoea developed after 6 hours. Peak expiratory flow rate (PEFR) decreased by 44% 7 hours after leaving the work environment, showing only a positive late asthmatic reaction (LAR). In patient 2, environmental exposure resulted in coughing and wheezing 10 minutes after initiation during bread making, and PEFR decreased by 39%. After 7 hours, PEFR decreased by 34%. The environmental provocation tests in both patients were repeated after wearing a commercial respiratory. This resulted in a complete suppression of LAR in patient 1 and of immediate asthmatic reaction (IAR) and LAR in patient 2. CONCLUSIONS: Two patients with asthma induced by buckwheat flour or wheat flour in whom asthmatic attacks could be prevented with a dust respirator are reported. Dust respirators are effective in preventing asthma attacks induced by buckwheat flour and wheat flour.
机译：目的：评估粉尘呼吸器在预防职业性哮喘患者（荞麦粉或小麦粉引起的哮喘）中预防哮喘发作的功效。方法：在有和没有使用市售口罩或防尘口罩的情况下，对两名职业哮喘患者的工作环境进行了检查。刚好在上班前后都进行了肺功能检查，并在返回医院后每隔1小时进行了14小时的肺功能检查。结果：在患者1中，环境暴露在工作期间和刚下班后没有任何症状，但是6小时后出现了咳嗽，喘息和呼吸困难。离开工作环境后7小时，呼气峰值流速（PEFR）下降了44％，仅显示出晚期哮喘反应（LAR）阳性。在患者2中，面包制作开始后10分钟，环境暴露导致咳嗽和喘息，PEFR降低39％。 7小时后，PEFR下降了34％。两名患者在佩戴商业呼吸器后均进行了环境激发试验。这导致患者1的LAR完全被抑制，患者2的LAR和哮喘立即被抑制。结论：2例由荞麦粉或小麦粉诱发的哮喘患者可通过使用防尘呼吸器预防哮喘发作报告。防尘口罩可有效预防荞麦粉和小麦粉引起的哮喘发作。

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