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异物吸入(FBA)是危害儿童健康的一个问题,笔者认为对任何一个难以解释的肺部疾患都应询问病史并想到FBA的可能。异物多数是可透光的,常规X线胸片往往看不到。临床症状取决于异物所在部位,阻塞大气管时出现急性窒息,部分阻塞出现吸气和呼气性喘鸣音,如异物位于大气管较低部位,则吸气性喘鸣可能很弱,而呼气性喘鸣较粗糙,因吸气时胸内负压增加将气道拉开,呼气时所形成的正压将气道关闭所致。一侧主支气管阻塞会出现喘鸣,而肺段支气管阻塞可能只有慢性咳嗽或血痰。主支气管内的异物最初刺激气道引起痉挛性咳
Foreign body inhalation (FBA) is a problem that endangers the health of children. I think the history should be asked for any unexplained lung disease and the possibility of FBA may come to mind. Foreign body most of the translucent, conventional X-ray often can not see. Clinical symptoms depend on the location of the foreign body, obstruction of the air pipe when acute asphyxia, partial obstruction of inhalation and expired wheezing, such as foreign body located in the lower part of the trachea, the inhalation of wheezing may be weak, and call Rough gas wheeze, thorax negative pressure will increase when the airway will be pulled open, expiratory pressure formed by the airway closed due. Side of the main bronchial obstruction may appear wheezing, and lung segment bronchial obstruction may only have chronic cough or bloody sputum. The main bronchial foreign bodies initially stimulate the airways to cause spasmodic cough