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研究低频空气振动的压差对鼻粘液纤毛输送的作用,对象为30名健康者。空气振动由一泵产生,空气频率为16Hz,压力振幅为±200mm水柱。振动的空气通过一紧塞前鼻孔的金属橄榄头送入鼻腔。粘液纤毛输送测试采用Andersen首先描述的糖精蓝法,试验选择在鼻循环较好的一侧鼻腔进行。每个试验者在同一天内测试两次,两次测试间隔时间至少三个小时,每次测试输入空气振动时和停止输入空气振动时糖精向咽部移动的时间,两者的先后顺序随机。结果:大部分测试者在向鼻腔输入空气振动时糖精向咽部移动所需时间显著少于鼻腔无空气振动输入者,仅3名试验者前者所需时间略多于后者。统计学分析表明两者间有差
To study the effect of low pressure air vibration on nasal mucociliary transport in 30 healthy subjects. Air vibration is generated by a pump with an air frequency of 16 Hz and a pressure amplitude of ± 200 mm water column. Vibrating air is delivered to the nasal cavity through a metal olive head that is in front of the nostril. Mucous ciliary transport test was first described by Andersen saccharin blue method, the test option in the nasal circulation on the better side of the nasal cavity. Each subject tested twice on the same day, at least three hours between test intervals, time for the saccharin to move to the pharynx for each test input air vibration and for the time when the input air vibrations were stopped, the order of the two being random. Results: Most of the subjects needed less time to move the saccharin to the pharynx when inputting the air vibration to the nasal cavity than the nasal air-less vibration input. Only three testers needed more time than the latter. Statistical analysis shows that there is a difference between the two