Wesley A G
S Afr Med J. 1975 Jul 5;49(28):1126-8.
Fifty-eight children with laryngotracheobronchitis (LTB) were studied. Many were malnourished, or in the post-measles state, or had some lower respiratory tract or cardiac involvement. In these patients, factors helpful in assessing the need for relief of airway obstruction by tracheal intubation have been evaluated. A set of indications for intubation, which includes clinical and arterial blood gas features of LTB is suggested. Cognisance of complications of disease, where present, has also been taken. If cyanosis or muscular hypotonia or unawareness is present, intubation is urgently needed. When two of the following occur together, the need for intubation has arisen: (a) pulse rate greater than 170/min and respiratory rate greater than 55/min; (b) paCO2 greater than 37 mmHg; (c) paO2 less than 50 mmHg; and (d) a complication (cardiac failure or severe lower respiratory tract infection).
对58例喉气管支气管炎（LTB）患儿进行了研究。许多患儿营养不良，或处于麻疹后状态，或有一些下呼吸道或心脏受累情况。在这些患者中，对有助于评估气管插管缓解气道阻塞需求的因素进行了评估。提出了一套插管指征，包括LTB的临床和动脉血气特征。同时也认识到了疾病存在时的并发症。如果出现紫绀、肌张力减退或意识不清，则急需插管。当以下两种情况同时出现时，就需要插管：（a）心率大于170次/分钟且呼吸频率大于55次/分钟；（b）动脉血二氧化碳分压（PaCO2）大于37 mmHg；（c）动脉血氧分压（PaO2）小于50 mmHg；以及（d）一种并发症（心力衰竭或严重下呼吸道感染）。
