Corrias A, Rossi G, Corona G B, Corda R
Istituto di Clinica Pediatrica, Università degli Studi di Cagliari, Italia.
Pediatr Med Chir. 1987 Sep-Oct;9(5):577-9.
Bronchial obstruction, chronic or acute, is due to different anatomical and functional events, mainly to smooth muscular contraction and oedema and secretions. In the first age of life the secretions and thickness of bronchial wool are the most important factors due to small bronchial caliber and poor muscular component. In the older child the most important cause is determined by the reactive spasm of bronchial smooth muscle.
支气管阻塞，无论是慢性还是急性，都是由不同的解剖学和功能事件引起的，主要是平滑肌收缩、水肿和分泌物。在生命的最初阶段，由于支气管管径小且肌肉成分少，分泌物和支气管绒毛厚度是最重要的因素。在年龄较大的儿童中，最重要的原因是支气管平滑肌的反应性痉挛。
