Direct visualization, by bronchoscopy, of paradoxical adductive vocal cords movement in the inspiratoryphase during a symptomatic period further confirmed the diagnosis.
在症状发作时,气管镜检查亦发现在吸气期,声带有反常之内收现象,这更进一步帮我们确定诊断。
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Phase IV is the inspiratory downstroke. This is the beginning of the inhalation and the carbon dioxide curve falls steeply to zero.