Anthony J S, Sieniewicz D J
Crit Care Med. 1977 May-Jun;5(3):161-2. doi: 10.1097/00003246-197705000-00009.
When suctioning patients with either a tracheostomy or endotracheal tube, the incidence of entry into the left main stem bronchus was recored at the time of routine AP chest examinations in an ICU. The success rate was 8% with an endotracheal tube and 25% when a tracheostomy tube was present; this was lower than has been reported by others. It could reflect the small size of the series or a more accurate picture.
在重症监护病房（ICU）对行气管切开术或气管插管的患者进行吸痰时，在常规前后位胸部检查时记录进入左主支气管的发生率。气管插管时成功率为8%，气管切开管存在时成功率为25%；这低于其他研究报告的结果。这可能反映了该系列研究样本量小，或者是更准确的情况。
