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急性毛细支气管炎是婴幼儿较常见的下呼吸道感染,仅见于2岁以下婴幼儿,多数是1～6个月的小婴儿,以小呼吸道阻塞引起的呼吸困难、气促、组织缺氧为临床特征,发病与该年龄支气管的解剖学特点有关,因微小的的管腔易由粘性分泌物、水肿及肌收缩而发生梗阻,并可导致肺气肿或肺不张。其临床症状如肺炎,且喘憋更著[1]。哮喘是一种慢性
Acute bronchiolitis is a common lower respiratory tract infection in infants and young children, only seen in infants under 2 years of age, mostly 1 to 6 months old baby with small airway obstruction caused by dyspnea, shortness of breath, hypoxia as a clinical Characteristics, incidence and bronchial characteristics of the age of the relevant, because the tiny lump easily sticky secretions, edema and muscle contraction and obstruction, and can lead to emphysema or atelectasis. The clinical symptoms such as pneumonia, and wheezing more [1]. Asthma is a chronic condition