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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bronchomalacia ： ウィキペディア英語版 Bronchomalacia Bronchomalacia is a term for weak cartilage in the walls of the bronchial tubes, often occurring but not limited to children under six months. Bronchomalacia means ‘floppiness’ of some part of the bronchi. Patients present with noisy breathing and/or wheezing. There is collapse of a main stem bronchus on exhalation. If the trachea is also involved the term tracheobronchomalacia (TBM) is used. If only the upper airway the trachea is involved it is called tracheomalacia (TM). There are two types of bronchomalacia. Primary bronchomalacia is due to a deficiency in the cartilaginous rings. Secondary bronchomalacia may occur by extrinsic compression from an enlarged vessel, a vascular ring or a bronchogenic cyst. Though uncommon, idiopathic (of unknown cause) tracheobronchomalacia has been described in older adults. ==Description== Bronchomalacia can best be described as a birth defect of the bronchus in the respiratory tract. Congenital malacia of the large airways is one of the few causes of irreversible airways obstruction in children, with symptoms varying from recurrent wheeze and recurrent lower airways infections to severe dyspnea and respiratory insufficiency. It may also be acquired later in life due to chronic or recurring inflammation resulting from infection or other airway disease.〔Carden, KA, Boiselle, PM, Waltz, DA, et al. (2005) Tracheomalacia and tracheobronchomalacia in children and adults: an in-depth review. Chest 127,984-1005.〕〔Clements, B Congenital malformations of the lungs and airways. Taussig, LM Landau, LI eds. Pediatric respiratory medicine 1999,1106-1136 Mosby. St. Louis, MO〕〔Austin, J, Ali, T Tracheomalacia and bronchomalacia in children: pathophysiology, assessment, treatment and anaesthesia management. Paediatr Anaesth 2003;13,3-11〕〔McNamara, VM, Crabbe, DC Tracheomalacia. Paediatr Respir Rev 2004;5,147-154〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bronchomalacia」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.