Petruson B, Theman K
Department of ENT, Sahlgrenska University Hospital, Göteborg, Sweden.
Acta Otolaryngol. 1996 May;116(3):490-2. doi: 10.3109/00016489609137878.
The nose and not the mouth should be used for breathing as the nose has better air conditioning capacity. When air is inhaled through the mouth it may dry and cool the respiratory mucosa, which can lead to bronchoconstriction in sensitive patients with asthma. By dilating the nostrils you can increase nasal breathing in most subjects. The aim of this study was to investigate whether sleeping with dilated nostrils reduces nocturnal asthma. At the Asthma and Allergy Research Centre, Gothenburg, 15 out-patients with nocturnal asthma were selected. Every other night for 10 nights the test subjects slept with the nasal dilator Nozovent which has been shown to increase the nasal air-flow and decrease the need for mouthbreathing. Every morning the patients self-reported on a form whether they had woken with asthma during the night or if they had had to take asthma medication. When sleeping with the nasal dilator the patients woke up with asthma on 17 of 75 nights as compared with 32 of 75 when sleeping without the device (p < 0.01). Reduced nocturnal asthma was observed by 12 patients and less need for asthma medication at night by 7. None of the patients noted any side-effects due to the device. In conclusion, the easy-to-use and cheap medical device, Nozovent, which mechanically dilates the nostrils and improves nasal breathing, can reduce nocturnal asthma.
应该用鼻子而非嘴巴呼吸，因为鼻子具有更好的空气调节能力。当通过嘴巴吸气时，可能会使呼吸道黏膜变干并冷却，这可能导致哮喘敏感患者出现支气管收缩。通过扩张鼻孔，大多数人可以增加鼻腔呼吸。本研究的目的是调查鼻孔扩张状态下睡眠是否能减轻夜间哮喘症状。在哥德堡的哮喘与过敏研究中心，选取了15名患有夜间哮喘的门诊患者。在10个晚上里，测试对象每隔一晚使用鼻扩张器Nozovent睡觉，该鼻扩张器已被证明可增加鼻腔气流并减少口呼吸需求。每天早晨，患者在表格上自行报告他们夜间是否因哮喘醒来或是否需要服用哮喘药物。使用鼻扩张器睡觉时，患者在75个夜晚中有17个夜晚因哮喘醒来，而不使用该装置睡觉时，这一数字为75个夜晚中的32个（p < 0.01）。12名患者夜间哮喘症状减轻，7名患者夜间对哮喘药物的需求减少。没有患者提到该装置有任何副作用。总之，易于使用且价格便宜的医疗设备Nozovent，可机械性扩张鼻孔并改善鼻腔呼吸，能够减轻夜间哮喘症状。
