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1·Objective: To observe efficacy and safety of inhaling salbutamol solution by using the ultrasonic nebulizer in treating severe asthma.

目的：观察沙丁胺醇溶液以超声雾化器雾化吸入治疗哮喘重度发作的疗效及安全性。

2·Methods Patients who undergoed thoracotomy, were assigned to two groups randomly:Oxygen nebulizer group and Ultrasonic nebulizer group.

将开胸术后患者随机抽签分为氧气雾化吸入组和超声雾化吸入组。

3·Objective To Compare the clinical effect between continuous airway moistening via syringe pump and inhalation therapy via ultrasonic nebulizer.

目的比较微量注射泵持续气道湿化和超声雾化吸入法的临床效果。