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气管切开作为喉部手术的前置手术在临床上被广泛应用。但有创性的气管切开使吸入气体不经过上呼吸道的湿化、加温、过滤作用,而直接进入下呼吸道,引起下呼吸道失水、痰液干燥不易排出,损伤呼吸道黏膜,甚至出现肺部感染等~(〔1〕)。据Graven等~(〔2〕)报道,下呼吸道感染发生率会随着气道湿化程度的增强而减少。气道湿化效果是评价人工气道护理质量的可靠指标之一~(〔3〕)。但目前对
Tracheotomy as a preoperative laryngeal surgery is widely used clinically. However, invasive tracheostomy so that the inhalation of gas without dampness of the upper respiratory tract, heating, filtration, and directly into the lower respiratory tract, causing lower respiratory tract dehydration, sputum drying is not easy to discharge, damage respiratory mucosa, and even pulmonary Department of infection and so on ~ (〔1〕〕. According to Graven et al. ([2]), the incidence of lower respiratory tract infections decreased with the degree of airway humidification. Airway wetting effect is to evaluate the quality of artificial airway care one of the reliable indicators (3). But right now